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Trees adjust nutrient acquisition strategies across tropical forest secondary succession New Phytol. (IF 9.4) Pub Date : 2024-05-14 Michelle Y. Wong, Nina Wurzburger, Jefferson S. Hall, S. Joseph Wright, Wenguang Tang, Lars O. Hedin, Kristin Saltonstall, Michiel van Breugel, Sarah A. Batterman
Summary Nutrient limitation may constrain the ability of recovering and mature tropical forests to serve as a carbon sink. However, it is unclear to what extent trees can utilize nutrient acquisition strategies – especially root phosphatase enzymes and mycorrhizal symbioses – to overcome low nutrient availability across secondary succession. Using a large‐scale, full factorial nitrogen and phosphorus
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LbSakA‐mediated phosphorylation of the scaffolding protein LbNoxR in the ectomycorrhizal basidiomycete Laccaria bicolor regulates NADPH oxidase activity, ROS accumulation and symbiosis development New Phytol. (IF 9.4) Pub Date : 2024-05-14 Liang Shi, Zi Wang, Ju Hong Chen, Hao Qiu, Wei Dong Liu, Xiao Yan Zhang, Francis M. Martin, Ming Wen Zhao
Summary Ectomycorrhizal symbiosis, which involves mutually beneficial interactions between soil fungi and tree roots, is essential for promoting tree growth. To establish this symbiotic relationship, fungal symbionts must initiate and sustain mutualistic interactions with host plants while avoiding host defense responses. This study investigated the role of reactive oxygen species (ROS) generated by
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Shifts in mycorrhizal types of fungi and plants in response to fertilisation, warming and herbivory in a tundra grassland New Phytol. (IF 9.4) Pub Date : 2024-05-14 Coline Le Noir de Carlan, Elina Kaarlejärvi, Caroline De Tender, Thilo Heinecke, Anu Eskelinen, Erik Verbruggen
Summary Climate warming is severely affecting high‐latitude regions. In the Arctic tundra, it may lead to enhanced soil nutrient availability and interact with simultaneous changes in grazing pressure. It is presently unknown how these concurrently occurring global change drivers affect the root‐associated fungal communities, particularly mycorrhizal fungi, and whether changes coincide with shifts
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ATR2Cala2 from Arabidopsis‐infecting downy mildew requires 4 TIR‐NLR immune receptors for full recognition New Phytol. (IF 9.4) Pub Date : 2024-05-14 Dae Sung Kim, Yufei Li, Hee‐Kyung Ahn, Alison Woods‐Tör, Volkan Cevik, Oliver J. Furzer, Wenbo Ma, Mahmut Tör, Jonathan D. G. Jones
Summary Arabidopsis Col‐0 RPP2A and RPP2B confer recognition of Arabidopsis downy mildew (Hyaloperonospora arabidopsidis [Hpa]) isolate Cala2, but the identity of the recognized ATR2Cala2 effector was unknown. To reveal ATR2Cala2, an F2 population was generated from a cross between Hpa‐Cala2 and Hpa‐Noks1. We identified ATR2Cala2 as a non‐canonical RxLR‐type effector that carries a signal peptide,
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Row1, a member of a new family of conserved fungal proteins involved in infection, is required for appressoria functionality in Ustilago maydis New Phytol. (IF 9.4) Pub Date : 2024-05-14 María Dolores Pejenaute‐Ochoa, Laura Tomás‐Gallardo, José I. Ibeas, Ramón R. Barrales
Summary The appressorium of phytopathogenic fungi is a specific structure with a crucial role in plant cuticle penetration. Pathogens with melanized appressoria break the cuticle through cell wall melanization and intracellular turgor pressure. However, in fungi with nonmelanized appressorium, the mechanisms governing cuticle penetration are poorly understood. Here we characterize Row1, a previously
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The stomatal response to vapor pressure deficit drives the apparent temperature response of photosynthesis in tropical forests New Phytol. (IF 9.4) Pub Date : 2024-05-13 Martijn Slot, Sami W. Rifai, Chinedu E. Eze, Klaus Winter
Summary As temperature rises, net carbon uptake in tropical forests decreases, but the underlying mechanisms are not well understood. High temperatures can limit photosynthesis directly, for example by reducing biochemical capacity, or indirectly through rising vapor pressure deficit (VPD) causing stomatal closure. To explore the independent effects of temperature and VPD on photosynthesis we analyzed
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Skeletonema marinoi ecotypes show specific habitat‐related responses to fluctuating light supporting high potential for growth under photobioreactor light regime New Phytol. (IF 9.4) Pub Date : 2024-05-13 Charlotte Volpe, Marianne Nymark, Tom Andersen, Per Winge, Johann Lavaud, Olav Vadstein
Summary Diatoms are a diverse group of phytoplankton usually dominating areas characterized by rapidly shifting light conditions. Because of their high growth rates and interesting biochemical profile, their biomass is considered for various commercial applications. This study aimed at identifying strains with superior growth in a photobioreactor (PBR) by screening the natural intraspecific diversity
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Soil microbial identity explains home‐field advantage for litter decomposition New Phytol. (IF 9.4) Pub Date : 2024-05-13 Nobuhiko Shigyo, Kiyoshi Umeki, Toshihide Hirao
Summary Unraveling the mechanisms of home‐field advantage (HFA) is essential to gain a complete understanding of litter decomposition processes. However, knowledge of the relationships between HFA effects and microbial communities is lacking. To examine HFA effects on litter decomposition, we identified the microbial communities and conducted a reciprocal transplant experiment, including all possible
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OsEIL2 balances rice immune responses against (hemi)biotrophic and necrotrophic pathogens via the salicylic acid and jasmonic acid synergism New Phytol. (IF 9.4) Pub Date : 2024-05-11 Yudan Zhao, Xiaoying Zhu, Cheng‐Min Shi, Guojuan Xu, Shimin Zuo, Yanlong Shi, Wenlei Cao, Houxiang Kang, Wende Liu, Ruyi Wang, Yuese Ning, Guo‐Liang Wang, Xuli Wang
Summary Plants typically activate distinct defense pathways against various pathogens. Heightened resistance to one pathogen often coincides with increased susceptibility to another pathogen. However, the underlying molecular basis of this antagonistic response remains unclear. Here, we demonstrate that mutants defective in the transcription factor ETHYLENE‐INSENSITIVE 3‐LIKE 2 (OsEIL2) exhibited enhanced
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Lipid turnover through lipophagy in the newly identified extremophilic green microalga Chlamydomonas urium New Phytol. (IF 9.4) Pub Date : 2024-05-11 María Esther Pérez‐Pérez, Manuel J. Mallén‐Ponce, Yosu Odriozola‐Gil, Alejandro Rubio, Joaquín J. Salas, Enrique Martínez‐Force, Antonio J. Pérez‐Pulido, José L. Crespo
Summary Autophagy is a central degradative pathway highly conserved among eukaryotes, including microalgae, which remains unexplored in extremophilic organisms. In this study, we described and characterized autophagy in the newly identified extremophilic green microalga Chlamydomonas urium, which was isolated from an acidic environment. The nuclear genome of C. urium was sequenced, assembled and annotated
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AvrSr27 is a zinc‐bound effector with a modular structure important for immune recognition New Phytol. (IF 9.4) Pub Date : 2024-05-11 Megan A. Outram, Jian Chen, Sean Broderick, Zhao Li, Shouvik Aditya, Nuren Tasneem, Taj Arndell, Cheryl Blundell, Daniel J. Ericsson, Melania Figueroa, Jana Sperschneider, Peter N. Dodds, Simon J. Williams
Summary Effector proteins are central to the success of plant pathogens, while immunity in host plants is driven by receptor‐mediated recognition of these effectors. Understanding the molecular details of effector–receptor interactions is key for the engineering of novel immune receptors. Here, we experimentally determined the crystal structure of the Puccinia graminis f. sp. tritici (Pgt) effector
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Dynamic regulation of water potential in Juniperus osteosperma mediates ecosystem carbon fluxes New Phytol. (IF 9.4) Pub Date : 2024-05-10 Jessica S. Guo, Mallory L. Barnes, William K. Smith, William R. L. Anderegg, Steven A. Kannenberg
Summary Some plants exhibit dynamic hydraulic regulation, in which the strictness of hydraulic regulation (i.e. iso/anisohydry) changes in response to environmental conditions. However, the environmental controls over iso/anisohydry and the implications of flexible hydraulic regulation for plant productivity remain unknown. In Juniperus osteosperma, a drought‐resistant dryland conifer, we collected
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Complex petal spot formation in the Beetle Daisy (Gorteria diffusa) relies on spot‐specific accumulation of malonylated anthocyanin regulated by paralogous GdMYBSG6 transcription factors New Phytol. (IF 9.4) Pub Date : 2024-05-10 Róisín Fattorini, Farahnoz N. Khojayori, Gregory Mellers, Edwige Moyroud, Eva Herrero, Roman T. Kellenberger, Rachel Walker, Qi Wang, Lionel Hill, Beverley J. Glover
Summary Gorteria diffusa has elaborate petal spots that attract pollinators through sexual deception, but how G. diffusa controls spot development is largely unknown. Here, we investigate how pigmentation is regulated during spot formation. We determined the anthocyanin composition of G. diffusa petals and combined gene expression analysis with protein interaction assays to characterise R2R3‐MYBs that
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GLR‐dependent calcium and electrical signals are not coupled to systemic, oxylipin‐based wound‐induced gene expression in Marchantia polymorpha New Phytol. (IF 9.4) Pub Date : 2024-05-10 Maite Sanmartín, Enrique Rojo, Andrzej Kurenda, Beatriz Larruy‐García, Ángel M. Zamarreño, M. Otilia Delgadillo, Pavel Brito‐Gutiérrez, José M. García‐Mina, Edward E. Farmer, Jose J. Sánchez‐Serrano
Summary In angiosperms, wound‐derived signals travel through the vasculature to systemically activate defence responses throughout the plant. In Arabidopsis thaliana, activity of vasculature‐specific Clade 3 glutamate receptor‐like (GLR) channels is required for the transmission of electrical signals and cytosolic Ca2+ ([Ca2+]cyt) waves from wounded leaves to distal tissues, triggering activation of
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Joint evolution of mutualistic interactions, pollination, seed dispersal mutualism, and mycorrhizal symbiosis in trees New Phytol. (IF 9.4) Pub Date : 2024-05-10 Akira Yamawo, Misuzu Ohno
Summary Mycorrhizal symbiosis, seed dispersal, and pollination are recognized as the most prominent mutualistic interactions in terrestrial ecosystems. However, it remains unclear how these symbiotic relationships have interacted to contribute to current plant diversity. We analyzed evolutionary relationships among mycorrhizal type, seed dispersal mode, and pollination mode in two global databases
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Phyllosphere fungal diversity generates pervasive nonadditive effects on plant performance New Phytol. (IF 9.4) Pub Date : 2024-05-09 Brianna K. Almeida, Elan H. Tran, Michelle E. Afkhami
Summary Plants naturally harbor diverse microbiomes that can dramatically impact their health and productivity. However, it remains unclear how fungal microbiome diversity, especially in the phyllosphere, impacts intermicrobial interactions and consequent nonadditive effects on plant productivity. Combining manipulative experiments, field collections, culturing, microbiome sequencing, and synthetic
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Insights into spinach domestication from genome sequences of two wild spinach progenitors, Spinacia turkestanica and Spinacia tetrandra New Phytol. (IF 9.4) Pub Date : 2024-05-08 Hongbing She, Zhiyuan Liu, Zhaosheng Xu, Helong Zhang, Jian Wu, Xiaowu Wang, Feng Cheng, Deborah Charlesworth, Wei Qian
Summary Cultivated spinach (Spinacia oleracea) is a dioecious species. We report high‐quality genome sequences for its two closest wild relatives, Spinacia turkestanica and Spinacia tetrandra, which are also dioecious, and are used to study the genetics of spinach domestication. Using a combination of genomic approaches, we assembled genomes of both these species and analyzed them in comparison with
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Nectar and floral morphology differ in evolutionary potential in novel pollination environments New Phytol. (IF 9.4) Pub Date : 2024-05-08 Andrés Romero‐Bravo, Maria Clara Castellanos
Summary Plants can evolve rapidly after pollinator changes, but the response of different floral traits to novel selection can vary. Floral morphology is often expected to show high integration to maintain pollination accuracy, while nectar traits can be more environmentally sensitive. The relative role of genetic correlations and phenotypic plasticity (PP) in floral evolution remains unclear, particularly
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CRWN nuclear lamina components maintain the H3K27me3 landscape and promote successful reproduction in Arabidopsis New Phytol. (IF 9.4) Pub Date : 2024-05-08 Junsik Choi, Mary Gehring
Summary Arabidopsis lamin analogs CROWDED NUCLEIs (CRWNs) are necessary to maintain nuclear structure, genome function, and proper plant growth. However, whether and how CRWNs impact reproduction and genome‐wide epigenetic modifications is unknown. Here, we investigate the role of CRWNs during the development of gametophytes, seeds, and endosperm, using genomic and epigenomic profiling methods. We
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Glycogen synthesis prevents metabolic imbalance and disruption of photosynthetic electron transport from photosystem II during transition to photomixotrophy in Synechocystis sp. PCC 6803 New Phytol. (IF 9.4) Pub Date : 2024-05-06 Pablo Ortega‐Martínez, Lauri Nikkanen, Laura T. Wey, Francisco J. Florencio, Yagut Allahverdiyeva, Sandra Díaz‐Troya
Summary Some cyanobacteria can grow photoautotrophically or photomixotrophically by using simultaneously CO2 and glucose. The switch between these trophic modes and the role of glycogen, their main carbon storage macromolecule, was investigated. We analysed the effect of glucose addition on the physiology, metabolic and photosynthetic state of Synechocystis sp. PCC 6803 and mutants lacking phosphoglucomutase
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The varied forms and functions of plasmodesmata New Phytol. (IF 9.4) Pub Date : 2024-05-06 Tessa M. Burch‐Smith
Plasmodesmata provide routes for the movement of various molecules between plant cells. Cargo molecules of plasmodesmata include metabolites like sucrose, small signaling molecules like hormones, and large endogenous signaling molecules like mRNAs. This diversity in cargo lends support to the view that plasmodesmata are essential for plant growth, development, and responses to the environment. Due
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Unveiling the transferability of PLSR models for leaf trait estimation: lessons from a comprehensive analysis with a novel global dataset New Phytol. (IF 9.4) Pub Date : 2024-05-06 Fujiang Ji, Fa Li, Dalei Hao, Alexey N. Shiklomanov, Xi Yang, Philip A. Townsend, Hamid Dashti, Tatsuro Nakaji, Kyle R. Kovach, Haoran Liu, Meng Luo, Min Chen
Summary Leaf traits are essential for understanding many physiological and ecological processes. Partial least squares regression (PLSR) models with leaf spectroscopy are widely applied for trait estimation, but their transferability across space, time, and plant functional types (PFTs) remains unclear. We compiled a novel dataset of paired leaf traits and spectra, with 47 393 records for > 700 species
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A bamboo ‘PeSAPK4‐PeMYB99‐PeTIP4‐3’ regulatory model involved in water transport New Phytol. (IF 9.4) Pub Date : 2024-05-06 Chenglei Zhu, Zeming Lin, Kebin Yang, Yongfeng Lou, Yan Liu, Tiankuo Li, Hui Li, Xiaolin Di, Jiangfei Wang, Huayu Sun, Ying Li, Xueping Li, Zhimin Gao
Summary Water plays crucial roles in expeditious growth and osmotic stress of bamboo. Nevertheless, the molecular mechanism of water transport remains unclear. In this study, an aquaporin gene, PeTIP4‐3, was identified through a joint analysis of root pressure and transcriptomic data in moso bamboo (Phyllostachys edulis). PeTIP4‐3 was highly expressed in shoots, especially in the vascular bundle sheath
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Epigenetic regulation of high light‐induced anthocyanin biosynthesis by histone demethylase IBM1 in Arabidopsis New Phytol. (IF 9.4) Pub Date : 2024-05-06 Di Fan, Xianqiang Wang, Tingting Liu, Huimin Liu, Yingying Peng, Xiaofeng Tang, Xiao Ye, Kuan Sun, Yuchen Yue, Dan Xu, Chaofeng Li, Keming Luo
Summary In plant species, anthocyanin accumulation is specifically regulated by light signaling. Although the CONSTITUTIVELY PHOTOMORPHOGENIC1/SUPPRESSOR OF PHYA‐105 (COP1/SPA) complex is known to control anthocyanin biosynthesis in response to light, the precise mechanism underlying this process remains largely unknown. Here, we report that Increase in BONSAI Methylation 1 (IBM1), a JmjC domain‐containing
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Connecting calcium signaling with boron transport: the crucial role of CPK10 protein kinase New Phytol. (IF 9.4) Pub Date : 2024-05-04 Chao‐Feng Huang
Boron (B) is an essential mineral element for plants that plays a central role in the cross-linking of rhamnogalacturonan II (RGII) of pectic polysaccharides in the cell wall and in maintaining membrane integrity and function (Blevins & Lukaszewski, 1998; O'Neill et al., 2001). The deficiency of B presents a prevalent nutritional challenge, particularly in calcareous soils and soils abundant in clay
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Strong habitat and seasonal phenology effects on the evolution of self‐compatibility, clonality and pollinator shifts in Lachenalia (Asparagaceae: Scilloideae) New Phytol. (IF 9.4) Pub Date : 2024-05-04 Graham D. Duncan, Allan G. Ellis, Félix Forest, G. Anthony Verboom
Summary Plants employ a diversity of reproductive safeguarding strategies to circumvent the challenge of pollen limitation. Focusing on southern African Lachenalia (Asparagaceae: Scilloideae), we test the hypothesis that the evolution of reproductive safeguarding traits (self‐compatibility, autonomous selfing, bird pollination and clonal propagation) is favoured in species occupying conditions of low
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A deeply conserved amino acid required for VAPYRIN localization and function during legume–rhizobial symbiosis New Phytol. (IF 9.4) Pub Date : 2024-05-04 Jin‐Li Deng, Li Zhao, Hong Wei, Han‐Xiao Ye, Li Yang, Linfeng Sun, Zhong Zhao, Jeremy D. Murray, Cheng‐Wu Liu
Introduction Most legume plants have the ability to form an endosymbiosis with rhizobia, which fix nitrogen in special root outgrowths called nodules (Sprent, 2009; Downie, 2014; Martin et al., 2017). To enter host roots and eventually colonize the nodules, rhizobia need to travel through several root cell layers, a process known as rhizobial infection (Gage, 2004; Murray, 2011). Depending on host–rhizobia
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Taste of microbes: the terroir explained by rhizospheric microbes New Phytol. (IF 9.4) Pub Date : 2024-05-04 Ryohei Thomas Nakano
‘Wine tastes like the soil it grows in.’ This notion, or some may call it a myth, implies that you can tell where the wine comes from merely based on its taste and flavor and has been whispered among winemakers and connoisseurs for centuries. This theory of wine, known as ‘terroir’, is now thought to be largely influenced by climate conditions and wine-producing cultures of the local wineries, in addition
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Casein kinase 1 AELs promote senescence by enhancing ethylene biosynthesis through phosphorylating WRKY22 transcription factor New Phytol. (IF 9.4) Pub Date : 2024-05-04 Guo‐Qing Zhu, Li Qu, Hong‐Wei Xue
Summary Leaf senescence is a complex process regulated by developmental and environmental factors, and plays a pivotal role in the development and life cycle of higher plants. Casein kinase 1 (CK1) is a highly conserved serine/threonine protein kinase in eukaryotes and functions in various cellular processes including cell proliferation, light signaling and hormone effects of plants. However, the biological
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Net O2 exchange rates under dark and light conditions across different stem compartments New Phytol. (IF 9.4) Pub Date : 2024-05-04 Sara Natale, Lucas Léon Peralta Ogorek, Ludovico Caracciolo, Tomas Morosinotto, Herbert van Amerongen, Valentino Casolo, Ole Pedersen, Andrea Nardini
Summary Woody plants display some photosynthetic activity in stems, but the biological role of stem photosynthesis and the specific contributions of bark and wood to carbon uptake and oxygen evolution remain poorly understood. We aimed to elucidate the functional characteristics of chloroplasts in stems of different ages in Fraxinus ornus. Our investigation employed diverse experimental approaches
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The nematode effector Mj‐NEROSs interacts with Rieske's iron–sulfur protein influencing plastid ROS production to suppress plant immunity New Phytol. (IF 9.4) Pub Date : 2024-05-02 Boris Stojilković, Hui Xiang, Yujin Chen, Muhammad Iqbal Maulana, Lander Bauters, Hans Van de Put, Kathy Steppe, Jinling Liao, Janice de Almeida Engler, Godelieve Gheysen
Summary Root‐knot nematodes (RKN; Meloidogyne species) are plant pathogens that introduce several effectors in their hosts to facilitate infection. The actual targets and functioning mechanism of these effectors largely remain unexplored. This study illuminates the role and interplay of the Meloidogyne javanica nematode effector ROS suppressor (Mj‐NEROSs) within the host plant environment. Mj‐NEROSs
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A lateral organ boundaries domain transcription factor acts downstream of the auxin response factor 2 to control nodulation and root architecture in Medicago truncatula New Phytol. (IF 9.4) Pub Date : 2024-04-26 Cristina Kirolinko, Karen Hobecker, Marianela Cueva, Florencia Botto, Aurélie Christ, Andreas Niebel, Federico Ariel, Flavio Antonio Blanco, Martín Crespi, María Eugenia Zanetti
Summary Legume plants develop two types of root postembryonic organs, lateral roots and symbiotic nodules, using shared regulatory components. The module composed by the microRNA390, the Trans‐Acting SIRNA3 (TAS3) RNA and the Auxin Response Factors (ARF)2, ARF3, and ARF4 (miR390/TAS3/ARFs) mediates the control of both lateral roots and symbiotic nodules in legumes. Here, a transcriptomic approach identified
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SCPL acyltransferases catalyze the metabolism of chlorogenic acid during purple coneflower seed germination New Phytol. (IF 9.4) Pub Date : 2024-04-26 Yuqing Huang, Hsihua Wang, Yuting Zhang, Pingyu Zhang, Yuting Xiang, Yang Zhang, Rao Fu
Summary The metabolism of massively accumulated chlorogenic acid is crucial for the successful germination of purple coneflower (Echinacea purpurea (L.) Menoch). A serine carboxypeptidase‐like (SCPL) acyltransferase (chicoric acid synthase, CAS) utilizes chlorogenic acid to produce chicoric acid during germination. However, it seems that the generation of chicoric acid lags behind the decrease in chlorogenic
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Pushing the envelope: do narrowly and widely distributed Eucalyptus species differ in response to climate warming? New Phytol. (IF 9.4) Pub Date : 2024-04-26 John E. Drake, Angelica Vårhammar, Michael J. Aspinwall, Sebastian Pfautsch, Oula Ghannoum, David T. Tissue, Mark G. Tjoelker
Summary Contemporary climate change will push many tree species into conditions that are outside their current climate envelopes. Using the Eucalyptus genus as a model, we addressed whether species with narrower geographical distributions show constrained ability to cope with warming relative to species with wider distributions, and whether this ability differs among species from tropical and temperate
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The auxin efflux carrier PIN1a regulates vascular patterning in cereal roots New Phytol. (IF 9.4) Pub Date : 2024-04-26 Riccardo Fusi, Sara Giulia Milner, Serena Rosignoli, Riccardo Bovina, Cristovão De Jesus Vieira Teixeira, Haoyu Lou, Brian S. Atkinson, Aditi N. Borkar, Larry M. York, Dylan H. Jones, Craig J. Sturrock, Nils Stein, Martin Mascher, Roberto Tuberosa, Devin O'Connor, Malcolm J. Bennett, Anthony Bishopp, Silvio Salvi, Rahul Bhosale
Summary Barley (Hordeum vulgare) is an important global cereal crop and a model in genetic studies. Despite advances in characterising barley genomic resources, few mutant studies have identified genes controlling root architecture and anatomy, which plays a critical role in capturing soil resources. Our phenotypic screening of a TILLING mutant collection identified line TM5992 exhibiting a short‐root
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Formations of mycorrhizal symbiosis alter the phenolic heteropolymers in roots and leaves of four temperate woody species New Phytol. (IF 9.4) Pub Date : 2024-04-25 Mengxue Xia, M. Luke McCormack, Vidya Suseela, Peter G. Kennedy, Nishanth Tharayil
Introduction More than 90% of vascular plant species in terrestrial ecosystems form mycorrhizal symbiosis between plant roots and soil fungi (Brundrett & Tedersoo, 2018). Arbuscular mycorrhizal (AM) and ectomycorrhizal (EcM) associations are the two main types of mycorrhizal symbiosis (Brundrett & Tedersoo, 2018), with both being broadly distributed across temperate forests (Phillips et al., 2013)
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Influence of tree mycorrhizal type, tree species identity, and diversity on forest root‐associated mycobiomes New Phytol. (IF 9.4) Pub Date : 2024-04-25 Bala Singavarapu, Hafeez ul Haq, Friedrich Darnstaedt, Ali Nawaz, Rémy Beugnon, Simone Cesarz, Nico Eisenhauer, Jianqing Du, Kai Xue, Yanfen Wang, Helge Bruelheide, Tesfaye Wubet
Summary Understanding the complex interactions between trees and fungi is crucial for forest ecosystem management, yet the influence of tree mycorrhizal types, species identity, and diversity on tree‐tree interactions and their root‐associated fungal communities remains poorly understood. Our study addresses this gap by investigating root‐associated fungal communities of different arbuscular mycorrhizal
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Mycorrhizal research now: from the micro‐ to the macro‐scale New Phytol. (IF 9.4) Pub Date : 2024-04-25 Francis M. Martin, Maarja Öpik, Ian A. Dickie
Mycorrhizal symbioses are complex relationships between plants and fungi that significantly affect ecosystem dynamics and functions across terrestrial environments. These symbiotic interactions, which involve a diverse range of fungal lineages, including Mucoromycotina, Glomeromycotina, Ascomycota, and Basidiomycota, as well as various plant hosts, are critical for nutrient cycling, carbon sequestration
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Fungal signals and calcium‐mediated transduction pathways along the plant defence–symbiosis continuum New Phytol. (IF 9.4) Pub Date : 2024-04-25 Marco Giovannetti, Filippo Binci, Lorella Navazio, Andrea Genre
This article is a Commentary on Giovannetti et al., 241: 1393–1400.
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Corrigendum to: Decadal soil warming decreased vascular plant above and belowground production in a subarctic grassland by inducing nitrogen limitation New Phytol. (IF 9.4) Pub Date : 2024-04-25
New Phytologist, 240 (2023), 565–576, doi: 10.1111/nph.19177. Since its publication, the authors of Fang et al. (2023) have identified an error in their article. The Y ordinate scales given in Fig. 5(b,e,g,j,l,o) were incorrectly set during figure compilation. The correct Fig. 5 and its associated legend are given below. We apologize to our readers for this error. Corrected Fig. 5: Fig. 5 Open in figure
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Impact of changing climate on bryophyte contributions to terrestrial water, carbon, and nitrogen cycles New Phytol. (IF 9.4) Pub Date : 2024-04-25 Mandy L. Slate, Anita Antoninka, Lydia Bailey, Monica B. Berdugo, Des A. Callaghan, Mariana Cárdenas, Matthew W. Chmielewski, Nicole J. Fenton, Hannah Holland‐Moritz, Samantha Hopkins, Mélanie Jean, Bier Ekaphan Kraichak, Zoë Lindo, Amelia Merced, Tobi Oke, Daniel Stanton, Julia Stuart, Daniel Tucker, Kirsten K. Coe
SummaryBryophytes, including the lineages of mosses, liverworts, and hornworts, are the second‐largest photoautotroph group on Earth. Recent work across terrestrial ecosystems has highlighted how bryophytes retain and control water, fix substantial amounts of carbon (C), and contribute to nitrogen (N) cycles in forests (boreal, temperate, and tropical), tundra, peatlands, grasslands, and deserts. Understanding
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Plant viruses and biomolecular condensates: novel perspectives in virus replication strategies New Phytol. (IF 9.4) Pub Date : 2024-04-24 Jared P. May
Biomolecular condensates are dynamic, membraneless, cellular compartments formed by the reversible assembly of proteins, nucleic acids, and other biomolecules (Hyman et al., 2014). The functions of these condensates in cellular processes have been extensively studied in mammalian systems (Yoshizawa et al., 2020), but similar studies in plants have traditionally lagged far behind. However, in the past
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Elevated [CO2] and temperature augment gas exchange and shift the fitness landscape in a montane forb New Phytol. (IF 9.4) Pub Date : 2024-04-24 Derek A. Denney, Pratik Patel, Jill T. Anderson
Summary Climate change is simultaneously increasing carbon dioxide concentrations ([CO2]) and temperature. These factors could interact to influence plant physiology and performance. Alternatively, increased [CO2] may offset costs associated with elevated temperatures. Furthermore, the interaction between elevated temperature and [CO2] may differentially affect populations from along an elevational
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Phenotypic selection patterns in a hybrid zone between two Calceolaria species with contrasting pollinators: insights from field surveys and fitness assessments New Phytol. (IF 9.4) Pub Date : 2024-04-24 Lucía Estévez Manso Galán, Marco Antonetti, Ana C. Ibañez, Alicia N. Sérsic, Andrea A. Cocucci
Summary Hybrid zones provide natural experimental settings to test hypotheses about species divergence. We concentrated on a hybrid swarm in which oil‐collecting bees and flower‐pecking birds act as pollinators of two Calceolaria species. We asked whether both pollinators contributed to flower divergence by differentially promoting prezygotic fitness at the phenotypic extremes that represent parentals
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ArabidopsismRNA export factor MOS11: molecular interactions and role in abiotic stress responses New Phytol. (IF 9.4) Pub Date : 2024-04-23 Amelie Rödel, Ina Weig, Sophie Tiedemann, Uwe Schwartz, Gernot Längst, Christoph Moehle, Marion Grasser, Klaus D. Grasser
Summary Transcription and export (TREX) is a multi‐subunit complex that links synthesis, processing and export of mRNAs. It interacts with the RNA helicase UAP56 and export factors such as MOS11 and ALYs to facilitate nucleocytosolic transport of mRNAs. Plant MOS11 is a conserved, but sparsely researched RNA‐binding export factor, related to yeast Tho1 and mammalian CIP29/SARNP. Using biochemical approaches
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Some fall to sleep slowly: cell biophysics and metabolism of quiescence in diatom resting cells New Phytol. (IF 9.4) Pub Date : 2024-04-23 Peter von Dassow
Unicellular phototrophs are responsible for approximately as much photosynthesis as all land plants (Field et al., 1998). With their intricate silica coverings, diatoms are both among the most beautiful microalgae as well as being among the most important, contributing 40% of carbon exported to the ocean depths (Jin et al., 2006). A phototroph living in the water column must be close enough to the
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MicroRNA164e suppresses NAC100 transcription factor‐mediated synthesis of seed storage proteins in chickpea New Phytol. (IF 9.4) Pub Date : 2024-04-23 Anirban Chakraborty, Baljinder Singh, Vimal Pandey, Swarup K. Parida, Sabhyata Bhatia
Summary Development of protein‐enriched chickpea varieties necessitates an understanding of specific genes and key regulatory circuits that govern the synthesis of seed storage proteins (SSPs). Here, we demonstrated the novel involvement of Ca‐miR164e‐CaNAC100 in regulating SSP synthesis in chickpea. Ca‐miRNA164e was significantly decreased during seed maturation, especially in high‐protein accessions
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Genome-wide association study and network analysis of in vitro transformation in Populus trichocarpa support key roles of diverse phytohormone pathways and cross talk New Phytol. (IF 9.4) Pub Date : 2024-04-22 Michael F. Nagle, Jialin Yuan, Damanpreet Kaur, Cathleen Ma, Ekaterina Peremyslova, Yuan Jiang, Greg S. Goralogia, Anna Magnuson, Jia Yi Li, Wellington Muchero, Li Fuxin, Steven H. Strauss
Introduction By enabling the introduction, transfer and manipulation of genetic material within and across genomes, plant transformation has become an important tool for scientific research and plant improvement. Agrobacterium is commonly used as a vector to introduce foreign DNA to plant genomes, followed by in vitro tissue culture methods to promote regeneration of whole plants. These treatments
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Tree water uptake patterns across the globe New Phytol. (IF 9.4) Pub Date : 2024-04-22 Christoph Bachofen, Shersingh Joseph Tumber-Dávila, D. Scott Mackay, Nate G. McDowell, Andrea Carminati, Tamir Klein, Benjamin D. Stocker, Maurizio Mencuccini, Charlotte Grossiord
Plant water uptake from the soil is a crucial element of the global hydrological cycle and essential for vegetation drought resilience. Yet, knowledge of how the distribution of water uptake depth (WUD) varies across species, climates, and seasons is scarce relative to our knowledge of aboveground plant functions. With a global literature review, we found that average WUD varied more among biomes than
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Large dataset analyses advance knowledge of seed ecology and evolutionary biology New Phytol. (IF 9.4) Pub Date : 2024-04-22 Sergey Rosbakh, Angelino Carta, Eduardo Fernández‐Pascual, Shyam S. Phartyal, Roberta L. C. Dayrell, Efisio Mattana, Arne Saatkamp, Filip Vandelook, Jerry M. Baskin, Carol C. Baskin
Response to: ‘The need for mechanistic explanations in (seed) ecology’ by Pausas et al. (2024) While scientists have long recognized the role of seeds in the life of plants, a mechanistic understanding of seed functions has emerged only in the past two decades as a result of fruitful communication between physiologists and ecologists (Vleeshouwers et al., 1995; Vázquez-Yanes & Orozco-Segovia, 1996;
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The need for mechanistic explanations in (seed) ecology New Phytol. (IF 9.4) Pub Date : 2024-04-22 Juli G. Pausas, Byron B. Lamont, Jon E. Keeley, William J. Bond
‘I would rather discover one cause than gain the kingdom of Persia’. Democritus (460–370 bc) ‘Data do not understand causes and effects; humans do’. Pearl & Mackenzie (2018)
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Carbon budget at the individual‐tree scale: dominant Eucalyptus trees partition less carbon belowground New Phytol. (IF 9.4) Pub Date : 2024-04-20 Ezequiel Fernandez‐Tschieder, John D. Marshall, Dan Binkley
Summary Large trees in plantations generally produce more wood per unit of resource use than small trees. Two processes may account for this pattern: greater photosynthetic resource use efficiency or greater partitioning of carbon to wood production. We estimated gross primary production (GPP) at the individual scale by combining transpiration with photosynthetic water‐use efficiency of Eucalyptus
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Negative allometry of leaf xylem conduit diameter and double‐wall thickness: implications for implosion safety New Phytol. (IF 9.4) Pub Date : 2024-04-20 Ilaine Silveira Matos, Samantha McDonough, Breanna Carrillo Johnson, Diana Kalantar, James Rohde, Roshni Sahu, Joyce Wang, Adrian Fontao, Jason To, Sonoma Carlos, Lisa Garcia, Mickey Boakye, Holly Forbes, Benjamin Wong Blonder
Summary Xylem conduits have lignified walls to resist crushing pressures. The thicker the double‐wall (T) relative to its diameter (D), the greater the implosion safety. Having safer conduits may incur higher costs and reduced flow, while having less resistant xylem may lead to catastrophic collapse under drought. Although recent studies have shown that conduit implosion commonly occurs in leaves,
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Sequential activation of strigolactone and salicylate biosynthesis promotes leaf senescence New Phytol. (IF 9.4) Pub Date : 2024-04-20 Yexing Jing, Ziyi Yang, Zongju Yang, Wanqing Bai, Ruizhen Yang, Yanjun Zhang, Kewei Zhang, Yunwei Zhang, Jiaqiang Sun
Summary Leaf senescence is a complex process strictly regulated by various external and endogenous factors. However, the key signaling pathway mediating leaf senescence remains unknown. Here, we show that Arabidopsis SPX1/2 negatively regulate leaf senescence genetically downstream of the strigolactone (SL) pathway. We demonstrate that the SL receptor AtD14 and MAX2 mediate the age‐dependent degradation
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Legacy effects of premature defoliation in response to an extreme drought event modulate phytochemical profiles with subtle consequences for leaf herbivory in European beech New Phytol. (IF 9.4) Pub Date : 2024-04-19 Michael Eisenring, Arthur Gessler, Esther R. Frei, Gaétan Glauser, Bernd Kammerer, Maurice Moor, Anouchka Perret-Gentil, Thomas Wohlgemuth, Martin M. Gossner
Introduction Around the world, forest ecosystems are increasingly challenged by combined effects of heat and drought (Hammond et al., 2022). Projected climate change scenarios suggest that the occurrence and intensity of future drought events will increase, exacerbating the situation for forests (Touma et al., 2015; Samaniego et al., 2018; UNCCD, 2022). Droughts can affect forest ecosystems directly
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FLOURY ENDOSPERM24, a heat shock protein 101 (HSP101), is required for starch biosynthesis and endosperm development in rice New Phytol. (IF 9.4) Pub Date : 2024-04-18 Hongming Wu, Yulong Ren, Hui Dong, Chen Xie, Lei Zhao, Xin Wang, Fulin Zhang, Binglei Zhang, Xiaokang Jiang, Yunshuai Huang, Ruonan Jing, Jian Wang, Rong Miao, Xiuhao Bao, Mingzhou Yu, Thanhliem Nguyen, Changling Mou, Yunlong Wang, Yihua Wang, Cailin Lei, Zhijun Cheng, Ling Jiang, Jianmin Wan
Summary Endosperm is the main storage organ in cereal grain and determines grain yield and quality. The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure. Here, we report a rice floury endosperm mutant flo24 that develops abnormal starch grains in the central starchy endosperm cells. Map‐based cloning and complementation test showed
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Harnessing photosynthetic C18O16O discrimination dynamics under leaf water nonsteady state to estimate mesophyll conductance: a new, regression‐based method New Phytol. (IF 9.4) Pub Date : 2024-04-18 Sen Rao, Tao Liu, Lucas A. Cernusak, Xin Song
Summary Mesophyll conductance (gm) is a crucial plant trait that can significantly limit photosynthesis. Measurement of photosynthetic C18O16O discrimination (Δ18O) has proved to be the only viable means of resolving gm in both C3 and C4 plants. However, the currently available methods to exploit Δ18O for gm estimation are error prone due to their inadequacy in constraining the degree of oxygen isotope
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High floral disparity without pollinator shifts in buzz-bee-pollinated Melastomataceae New Phytol. (IF 9.4) Pub Date : 2024-04-17 Constantin Kopper, Jürg Schönenberger, Agnes S. Dellinger
Introduction Pollination syndromes are defined as suites of floral traits, which have evolved repeatedly in adaptation to distinct functional pollinator groups, with flowers pollinated by the same functional group converging in trait space due to shared selective pressures (i.e. due to similar sensory abilities, morphology, dietary preferences, and behavior of their pollinators; Vogel, 1954; Faegri