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Coupled hydraulics and carbon economy underlie age‐related growth decline and revitalisation of sand‐fixing shrubs after crown removal Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-22 Jing‐Jing Guo, Xue‐Wei Gong, Xue‐Hua Li, Chi Zhang, Chun‐Yang Duan, Madelon Lohbeck, Frank Sterck, Guang‐You Hao
Crown removal revitalises sand‐fixing shrubs that show declining vigour with age in drought‐prone environments; however, the underlying mechanisms are poorly understood. Here, we addressed this knowledge gap by comparing the growth performance, xylem hydraulics and plant carbon economy across different plant ages (10, 21 and 33 years) and treatments (control and crown removal) using a representative
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Cytosolic ABA Receptor Kinases phosphorylate the D6 PROTEIN KINASE leading to its stabilization which promotes Arabidopsis growth Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-22 Juan He, Xiaoyi Li, Qin Yu, Lu Peng, Li Chen, Jiajia Liu, Jianmei Wang, Xufeng Li, Yi Yang
The polar auxin transport is required for proper plant growth and development. D6 PROTEIN KINASE (D6PK) is required for the phosphorylation of PIN‐FORMED (PIN) auxin efflux carriers to regulate auxin transport, while the regulation of D6PK stabilization is still poorly understood. Here, we found that Cytosolic ABA Receptor Kinases (CARKs) redundantly interact with D6PK, and the interactions are dependent
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Gradients in embolism resistance within stems driven by secondary growth in herbs Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-22 Eduardo J. Haverroth, Ian M. Rimer, Leonardo A. Oliveira, Leydson G. A. de Lima, Igor Cesarino, Samuel C. V. Martins, Scott A. M. McAdam, Amanda A. Cardoso
The stems of some herbaceous species can undergo basal secondary growth, leading to a continuum in the degree of woodiness along the stem. Whether the formation of secondary growth in the stem base results in differences in embolism resistance between the base and the upper portions of stems is unknown. We assessed the embolism resistance of leaves and the basal and upper portions of stems simultaneously
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A bamboo bHLH transcription factor PeRHL4 has dual functions in enhancing drought and phosphorus starvation tolerance Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-22 Chenglei Zhu, Zeming Lin, Yan Liu, Hui Li, Xiaolin Di, Tiankuo Li, Jiangfei Wang, Zhimin Gao
ROOTHAIRLESS (RHL) is a typical type of basic helix‐loop‐helix (bHLH) transcription factor (TF), which has been reported to participate in various aspects of plant growth and in response to stress. However, the functions of RHL subfamily members in moso bamboo (Phyllostachys edulis) remain unknown. In this study, we identified 14 bHLH genes (PeRHL1–PeRHL14) in moso bamboo. Phylogenetic tree and conserved
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Far‐red light enrichment affects gene expression and architecture as well as growth and photosynthesis in rice Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-17 Martina Huber, Hugo Jan de Boer, Andrés Romanowski, Hans van Veen, Sara Buti, Parvinderdeep S. Kahlon, Jannes van der Meijden, Jeroen Koch, Ronald Pierik
Plants use light as a resource and signal. Photons within the 400–700 nm waveband are considered photosynthetically active. Far‐red photons (FR, 700–800 nm) are used by plants to detect nearby vegetation and elicit the shade avoidance syndrome. In addition, FR photons have also been shown to contribute to photosynthesis, but knowledge about these dual effects remains scarce. Here, we study shoot‐architectural
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Peroxidase gene TaPrx109‐B1 enhances wheat tolerance to water deficit via modulating stomatal density Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-17 Yanqing Jiao, Weizeng Lv, Wan Teng, Le Li, Haibin Lan, Lu Bai, Zongzhen Li, Yanhao Lian, Zhiqiang Wang, Zeyu Xin, Yongzhe Ren, Tongbao Lin
Increasing the tolerance of crops to water deficit is crucial for the improvement of crop production in water‐restricted regions. Here, a wheat peroxidase gene (TaPrx109‐B1) belonging to the class III peroxidase gene family was identified and its function in water deficit tolerance was revealed. We demonstrated that overexpression of TaPrx109‐B1 reduced leaf H2O2 level and stomatal density, increased
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Freezing treatment under light conditions leads to a dramatic enhancement of freezing tolerance in cold‐acclimated Arabidopsis Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-17 Kenji Sugita, Shunsuke Takahashi, Matsuo Uemura, Yukio Kawamura
Overwintering plants survive subzero temperatures by cold acclimation (CA), wherein they acquire freezing tolerance through short‐term exposure to low temperatures above 0°C. The freezing tolerance of CA plants increases when they are subsequently exposed to mild subzero temperatures, a phenomenon known as second‐phase cold hardening (2PH). Here, we explored the molecular mechanism and physiological
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Two B‐box proteins orchestrate vegetative and reproductive growth in summer chrysanthemum Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-17 Qi Wang, Lijun Wang, Hua Cheng, Shuang Wang, Jiayu Li, Deng Zhang, Lijie Zhou, Sumei Chen, Fadi Chen, Jiafu Jiang
Floral transition, the switch from vegetative to reproductive growth, is extremely important for the growth and development of flowering plants. In the summer chrysanthemum, CmBBX8, a member of the subgroup II B‐box (BBX) family, positively regulates the transition by physically interacting with CmERF3 to inhibit CmFTL1 expression. In this study, we show that CmBBX5, a B‐box subgroup I member comprising
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The pore‐rhizosheath shapes maize root architecture by enhancing root distribution in macropores Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-16 Lingling Liu, Shijie Qin, W. Richard Whalley, Hu Zhou, Tusheng Ren, Weida Gao
Pores and old root‐channels are preferentially used by roots to allow them to penetrate hard soils. However, there are few studies that have accounted for the effects of pore‐rhizosheath on root growth. In this study, we developed an approach by adding the synthetic root exudates using a porous stainless tube with 0.1‐mm micropores through a peristaltic pump to reproduce the rhizosheath around the
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The ‘Candidatus phytoplasma ziziphi’ effectors SJP1 and SJP2 destabilise the bifunctional regulator ZjTCP7 to modulate floral transition and shoot branching Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-16 Fuli Ma, Xiang Huang, Junyong Zhou, Ning Zhang, Mingsheng Deng, Yunyan Zheng, Meiqi Zhao, Wei Chen, Wenmin Zhou, Liping Zhai, Lei Zhong, Kaixue Pang, Xin Liu, Xinyue Zhong, Yifan Ren, Yu Liu, Qibao Sun, Jun Sun
Phytoplasmic SAP11 effectors alter host plant architecture and flowering time. However, the exact mechanisms have yet to be elucidated. Two SAP11‐like effectors, SJP1 and SJP2, from ‘Candidatus Phytoplasma ziziphi’ induce shoot branching proliferation. Here, the transcription factor ZjTCP7 was identified as a central target of these two effectors to regulate floral transition and shoot branching. Ectopic
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Single‐cell transcriptome landscape elucidates the cellular and developmental responses to tomato chlorosis virus infection in tomato leaf Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-15 Hao Yue, Gong Chen, Zhuo Zhang, Zhaojiang Guo, Zhanhong Zhang, Songbai Zhang, Ted C. J. Turlings, Xuguo Zhou, Jing Peng, Yang Gao, Deyong Zhang, Xiaobin Shi, Yong Liu
Plant viral diseases compromise the growth and yield of the crop globally, and they tend to be more serious under extreme temperatures and drought climate changes. Currently, regulatory dynamics during plant development and in response to virus infection at the plant cell level remain largely unknown. In this study, single‐cell RNA sequencing on 23 226 individual cells from healthy and tomato chlorosis
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The growth promotion in endophyte symbiotic plants does not penalise the resistance to herbivores and bacterial microbiota Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-15 Wei Zhang, Pedro E. Gundel, Ruy Jáuregui, Stuart D. Card, Wade J. Mace, Richard D. Johnson, Daniel A. Bastías
A trade‐off between growth and defence against biotic stresses is common in plants. Fungal endophytes of the genus Epichloë may relieve this trade‐off in their host grasses since they can simultaneously induce plant growth and produce antiherbivore alkaloids that circumvent the need for host defence. The Epichloë ability to decouple the growth‐defence trade‐off was evaluated by subjecting ryegrass
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Hypoxia reshapes Arabidopsis root architecture by integrating ERF‐VII factor response and abscisic acid homoeostasis Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-15 Emese Eysholdt‐Derzsó, Bettina Hause, Margret Sauter, Romy R. Schmidt‐Schippers
Oxygen limitation (hypoxia), arising as a key stress factor due to flooding, negatively affects plant development. Consequently, maintaining root growth under such stress is crucial for plant survival, yet we know little about the root system's adaptions to low‐oxygen conditions and its regulation by phytohormones. In this study, we examine the impact of hypoxia and, herein, the regulatory role of
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The poorly‐explored stomatal response to temperature at constant evaporative demand Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-11 Colleen Mills, Megan K. Bartlett, Thomas N. Buckley
Changes in leaf temperature are known to drive stomatal responses, because the leaf‐to‐air water vapour gradient (Δw) increases with temperature if ambient vapour pressure is held constant, and stomata respond to changes in Δw. However, the direct response of stomata to temperature (DRST; the response when Δw is held constant by adjusting ambient humidity) has been examined far less extensively. Though
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The crane fly glycosylated triketide δ‐lactone cornicinine elicits akinete differentiation of the cyanobiont in aquatic Azolla fern symbioses Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-11 Erbil Güngör, Jérôme Savary, Kelvin Adema, Laura W. Dijkhuizen, Jens Keilwagen, Axel Himmelbach, Martin Mascher, Nils Koppers, Andrea Bräutigam, Charles Van Hove, Olivier Riant, Sandra Nierzwicki‐Bauer, Henriette Schluepmann
The restriction of plant‐symbiont dinitrogen fixation by an insect semiochemical had not been previously described. Here we report on a glycosylated triketide δ‐lactone from Nephrotoma cornicina crane flies, cornicinine, that causes chlorosis in the floating‐fern symbioses from the genus Azolla. Only the glycosylated trans‐A form of chemically synthesized cornicinine was active: 500 nM cornicinine
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The chloroplast singlet oxygen‐triggered biosynthesis of salicylic acid and jasmonic acid is mediated by EX1 and GUN1 in Arabidopsis Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-11 Rudan Geng, Xia Li, Jirong Huang, Wenbin Zhou
Reactive oxygen species (ROS) and defence hormones like salicylic acid (SA) and jasmonic acid (JA) play pivotal roles in triggering cell death. However, the precise mechanism governing the interaction between ROS and SA/JA remains elusive. Recently, our research revealed that RNAi mutants with suppressed expression of PROGRAMMED CELL DEATH8 (PCD8) exhibit an overabundance of tetrapyrrole intermediates
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Incorporating photosynthetic acclimation improves stomatal optimisation models Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-09 Victor Flo, Jaideep Joshi, Manon Sabot, David Sandoval, Iain Colin Prentice
Stomatal opening in plant leaves is regulated through a balance of carbon and water exchange under different environmental conditions. Accurate estimation of stomatal regulation is crucial for understanding how plants respond to changing environmental conditions, particularly under climate change. A new generation of optimality‐based modelling schemes determines instantaneous stomatal responses from
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Histone variant H2A.Z is required for plant salt response by regulating gene transcription Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-05 Rongqing Miao, Yue Zhang, Xinxin Liu, Yue Yuan, Wei Zang, Zhiqi Li, Xiufeng Yan, Qiuying Pang, Aiqin Zhang
As a well‐conserved histone variant, H2A.Z epigenetically regulates plant growth and development as well as the interaction with environmental factors. However, the role of H2A.Z in response to salt stress remains unclear, and whether nucleosomal H2A.Z occupancy work on the gene responsiveness upon salinity is obscure. Here, we elucidate the involvement of H2A.Z in salt response by analysing H2A.Z
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Physiological and molecular responses in phosphorus‐hyperaccumulating Polygonum species to high phosphorus exposure Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-03 Daihua Ye, Min Xie, Tao Liu, Huagang Huang, Xizhou Zhang, Haiying Yu, Zicheng Zheng, Yongdong Wang, Yu Tang, Tingxuan Li
Phosphorus (P)‐hyperaccumulators for phytoextraction from P‐polluted areas generally show rapid growth and accumulate large amounts of P without any toxicity symptom, which depends on a range of physiological processes and gene expression patterns that have never been explored. We investigated growth, leaf element concentrations, P fractions, photosynthetic traits, and leaf metabolome and transcriptome
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TaGSK3 regulates wheat development and stress adaptation through BR‐dependent and BR‐independent pathways Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-01 Xiaolong Guo, Jialiang Zhang, Shuyang Sun, Liuying Huang, Yaxin Niu, Peng Zhao, Yuanfei Zhang, Xue Shi, Wanquan Ji, Shengbao Xu
The GSK3/SHAGGY‐like kinase plays critical roles in plant development and response to stress, but its specific function remains largely unknown in wheat (Triticum aestivum L.). In this study, we investigated the function of TaGSK3, a GSK3/SHAGGY‐like kinase, in wheat development and response to stress. Our findings demonstrated that TaGSK3 mutants had significant effects on wheat seedling development
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Cell size and xylem differentiation regulating genes from Salicornia europaea contribute to plant salt tolerance Plant Cell Environ. (IF 7.3) Pub Date : 2024-04-01 Tengxue Lou, Sulian Lv, Jinhui Wang, Duoliya Wang, Kangqi Lin, Xuan Zhang, Bo Zhang, Zijing Guo, Ze Yi, Yinxin Li
Cell wall is involved in plant growth and plays pivotal roles in plant adaptation to environmental stresses. Cell wall remodelling may be crucial to salt adaptation in the euhalophyte Salicornia europaea. However, the mechanism underlying this process is still unclear. Here, full‐length transcriptome indicated cell wall‐related genes were comprehensively regulated under salinity. The morphology and
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Rice bundle sheath cell shape is regulated by the timing of light exposure during leaf development Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-29 Andrew R. G. Plackett, Julian M. Hibberd
Plant leaves contain multiple cell types which achieve distinct characteristics whilst still coordinating development within the leaf. The bundle sheath possesses larger individual cells and lower chloroplast content than the adjacent mesophyll, but how this morphology is achieved remains unknown. To identify regulatory mechanisms determining bundle sheath cell morphology we tested the effects of perturbing
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Co‐overexpression of SWEET sucrose transporters modulates sucrose synthesis and defence responses to enhance immunity against bacterial blight in rice Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-27 Jitender Singh, Donald James, Shubhashis Das, Manish Kumar Patel, Rashmi Ranjan Sutar, V. Mohan Murali Achary, Naveen Goel, Kapuganti Jagadis Gupta, Malireddy K. Reddy, Gopaljee Jha, Ramesh V. Sonti, Christine H. Foyer, Jitendra Kumar Thakur, Baishnab C. Tripathy
Enhancing carbohydrate export from source to sink tissues is considered to be a realistic approach for improving photosynthetic efficiency and crop yield. The rice sucrose transporters OsSUT1, OsSWEET11a and OsSWEET14 contribute to sucrose phloem loading and seed filling. Crucially, Xanthomonas oryzae pv. oryzae (Xoo) infection in rice enhances the expression of OsSWEET11a and OsSWEET14 genes, and
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Inside‐out: Synergising leaf biochemical traits with stomatal‐regulated water fluxes to enhance transpiration modelling during abiotic stress Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-27 Robert S. Caine, Muhammad S. Khan, Robert A. Brench, Heather J. Walker, Holly L. Croft
As the global climate continues to change, plants will increasingly experience abiotic stress(es). Stomata on leaf surfaces are the gatekeepers to plant interiors, regulating gaseous exchanges that are crucial for both photosynthesis and outward water release. To optimise future crop productivity, accurate modelling of how stomata govern plant–environment interactions will be crucial. Here, we synergise
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Leaf day respiration: More than just catabolic CO2 production in the light Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-26 Guillaume Tcherkez, Cyril Abadie, Corentin Dourmap, Julie Lalande, Anis M. Limami
Summary statementDay respiration is a net flux resulting from several CO2‐generating and CO2‐fixing reactions, not only related to catabolism but also to anabolism. We review pieces of evidence that decarboxylating reactions are partly fed by carbon sources disconnected from current photosynthesis and how they reflect various metabolic pathways.
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OsEIN2‐OsEIL1/2 pathway negatively regulates chilling tolerance by attenuating OsICE1 function in rice Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Mingjuan Zhai, Yating Chen, Xiaowu Pan, Ying Chen, Jiahao Zhou, Xiaodan Jiang, Zhijin Zhang, Guiqing Xiao, Haiwen Zhang
Low temperature severely affects rice development and yield. Ethylene signal is essential for plant development and stress response. Here, we reported that the OsEIN2‐OsEIL1/2 pathway reduced OsICE1‐dependent chilling tolerance in rice. The overexpressing plants of OsEIN2, OsEIL1 and OsEIL2 exhibited severe stress symptoms with excessive reactive oxygen species (ROS) accumulation under chilling, while
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Mitogen‐activated protein kinase MxMPK3‐2 mediated phosphorylation of MxZR3.1 participates in regulating iron homoeostasis in apple rootstocks Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Keting Li, Longmei Zhai, Ying Pi, Sitong Fu, Ting Wu, Xinzhong Zhang, Xuefeng Xu, Zhenhai Han, Yi Wang
The micronutrient iron plays a crucial role in the growth and development of plants, necessitating meticulous regulation for its absorption by plants. Prior research has demonstrated that the transcription factor MxZR3.1 restricts iron absorption in apple rootstocks; however, the precise mechanism by which MxZR3.1 contributes to the regulation of iron homoeostasis in apple rootstocks remains unexplored
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Thioredoxins o1 and h2 jointly adjust mitochondrial dihydrolipoamide dehydrogenase‐dependent pathways towards changing environments Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Stefan Timm, Nicole Klaas, Janice Niemann, Kathrin Jahnke, Saleh Alseekh, Youjun Zhang, Paulo V. L. Souza, Liang‐Yu Hou, Maike Cosse, Jennifer Selinski, Peter Geigenberger, Danilo M. Daloso, Alisdair R. Fernie, Martin Hagemann
Thioredoxins (TRXs) are central to redox regulation, modulating enzyme activities to adapt metabolism to environmental changes. Previous research emphasized mitochondrial and microsomal TRX o1 and h2 influence on mitochondrial metabolism, including photorespiration and the tricarboxylic acid (TCA) cycle. Our study aimed to compare TRX‐based regulation circuits towards environmental cues mainly affecting
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Functional analysis of reactive oxygen species‐driven stress systemic signalling, interplay and acclimation Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Ronald J. Myers, María Ángeles Peláez‐Vico, Yosef Fichman
Reactive oxygen species (ROS) play a critical role in plant development and stress responses, acting as key components in rapid signalling pathways. The ‘ROS wave’ triggers essential acclimation processes, ultimately ensuring plant survival under diverse challenges. This review explores recent advances in understanding the composition and functionality of the ROS wave within plant cells. During their
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The development of pleiotropic phenotypes in powdery mildew‐resistant barley and Arabidopsis thaliana mlo mutants is linked to nitrogen availability Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Matthias Freh, Anja Reinstädler, Kira D. Neumann, Ulla Neumann, Ralph Panstruga
Powdery mildew‐resistant barley (Hordeum vulgare) and Arabidopsis thaliana mlo mutant plants exhibit pleiotropic phenotypes such as the spontaneous formation of callose‐rich cell wall appositions and early leaf chlorosis and necrosis, indicative of premature leaf senescence. The exogenous factors governing the occurrence of these undesired side effects remain poorly understood. Here, we characterised
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Phenotyping xylem connections in grafted plants using X‐ray micro‐computed tomography Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Marilou Camboué, Anne Janoueix, Jean‐Pascal Tandonnet, Anne‐Sophie Spilmont, Cédric Moisy, Guillaume Mathieu, Fabrice Cordelières, Jérémie Teillon, Luis Gonzaga Santesteban, Nathalie Ollat, Sarah Jane Cookson
Plants are able to naturally graft or inosculate their trunks, branches and roots together, this mechanism is used by humans to graft together different genotypes for a range of purposes. Grafts are considered successful if functional vascular connections between the two genotypes occur. Various techniques can evaluate xylem connections across the graft interface. However, these methods are generally
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Regulation of carbohydrate metabolism during anther development in a thermo‐sensitive genic male‐sterile wheat line Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Huanting Gao, Dongxiao Li, Haiyan Hu, Feng Zhou, Yongang Yu, Qichao Wei, Qili Liu, Mingjiu Liu, Ping Hu, Eryong Chen, Puwen Song, Xiaojia Su, Yuanyuan Guan, Mei Qiao, Zhengang Ru, Chengwei Li
Bainong sterility (BNS) is a thermo‐sensitive genic male sterile wheat line, characterised by anther fertility transformation in response to low temperature (LT) stress during meiosis, the failure of vacuole decomposition and the absence of starch accumulation in sterile bicellular pollen. Our study demonstrates that the late microspore (LM) stage marks the transition from the anther growth to anther
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Proline‐rich protein PRPL1 enhances Panax notoginseng defence against Fusarium solani by regulating reactive oxygen species balance and strengthening the cell wall barrier Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Linlin Su, Wenyun Li, Xiaohua Chen, Pengcheng Wang, Diqiu Liu
The root rot mainly caused by Fusarium solani is a bottleneck in the cultivation of Panax notoginseng. In this study, we reported a gene encoding a plant cell wall structural protein, P. notoginseng proline‐rich protein (PnPRPL1), whose transcription was upregulated by F. solani and induced by some hormone signals. The PnPRPL1 recombinant protein significantly inhibited the growth and conidial germination
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Arabidopsis calcineurin B‐like‐interacting protein kinase 8 and its functional homolog in tomato negatively regulates ABA‐mediated stomatal movement and drought tolerance Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Fei Liu, Qi Liu, Ju‐Hua Wu, Zong‐Qi Wang, Yuan‐Jun Geng, Juan Li, Yan Zhang, Sha Li
Stomatal movement is critical for water transpiration, gas exchange, and responses to biotic stresses. Abscisic acid (ABA) induces stomatal closure to prevent water loss during drought. We report that Arabidopsis CIPK8 negatively regulates ABA‐mediated stomatal closure and drought tolerance. CIPK8 is highly enriched in guard cells and transcriptionally induced by ABA. Functional loss of CIPK8 results
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Unraveling root and rhizosphere traits in temperate maize landraces and modern cultivars: Implications for soil resource acquisition and drought adaptation Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Andreas J. Wild, Franziska A. Steiner, Marvin Kiene, Nicolas Tyborski, Shu‐Yin Tung, Tina Koehler, Andrea Carminati, Barbara Eder, Jennifer Groth, Wouter K. Vahl, Sebastian Wolfrum, Tillmann Lueders, Christian Laforsch, Carsten W. Mueller, Alix Vidal, Johanna Pausch
A holistic understanding of plant strategies to acquire soil resources is pivotal in achieving sustainable food security. However, we lack knowledge about variety‐specific root and rhizosphere traits for resource acquisition, their plasticity and adaptation to drought. We conducted a greenhouse experiment to phenotype root and rhizosphere traits (mean root diameter [Root D], specific root length [SRL]
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CERK1 compromises Fusarium solani resistance by reducing jasmonate level and undergoes a negative feedback regulation via the MMK2‐WRKY71 module in apple Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-22 Tingting Pei, Minghui Zhan, Dongshan Niu, Yuerong Liu, Jie Deng, Yuanyuan Jing, Pengmin Li, Changhai Liu, Fengwang Ma
Fusarium spp., a necrotrophic soil‐borne pathogen, causes root rot disease on many crops. CERK1, as a typical pattern recognition receptor, has been widely studied. However, the function of CERK1 during plant–Fusarium interaction has not been well described. We determined that MdCERK1 is a susceptibility gene in the apple‐Fusarium solani (Fs) interaction, and jasmonic acid (JA) plays a crucial role
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Tilletia horrida glycoside hydrolase family 128 protein, designated ThGhd_7, modulates plant immunity by blocking reactive oxygen species production Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-19 Xinyue Shu, Desuo Yin, Juan Liang, Ting Xiang, Chao Zhang, Honglian Li, Aiping Zheng, Ping Li, Aijun Wang
Tilletia horrida is an important soilborne fungal pathogen that causes rice kernel smut worldwide. We found a glycoside hydrolase family 128 protein, designated ThGhd_7, caused cell death in Nicotiana benthamiana leaves. The predicted signal peptide (SP) of ThGhd_7 targets it for secretion. However, loss of the SP did not affect its ability to induce cell death. The 23–201 amino acid sequence of ThGhd_7
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Mutant noxy8 exposes functional specificities between the chloroplast chaperones CLPC1 and CLPC2 in the response to organelle stress and plant defence Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-19 Bran López, Yovanny Izquierdo, Tomás Cascón, Ángel M. Zamarreño, José M. García‐Mina, Pablo Pulido, Carmen Castresana
Chloroplast function is essential for growth, development, and plant adaptation to stress. Organelle stress and plant defence responses were examined here using noxy8 (nonresponding to oxylipins 8) from a series of Arabidopsis mutants. The noxy8 mutation was located at the CLPC2 gene, encoding a chloroplast chaperone of the protease complex CLP. Although its CLPC1 paralogue is considered to generate
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Defence and nutrition synergistically contribute to the distinct tolerance of rice subspecies to the stem borer, Chilo suppressalis Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-18 Jia‐Fei Ju, Lei Yang, Chen Shen, Jian‐Cai Li, Ary A. Hoffmann, Yu‐Xuan Huang, Feng Zhu, Rui Ji, Guang‐Hua Luo, Ji‐Chao Fang
Damage caused by the rice striped stem borer (SSB), Chilo suppressalis (Walker) (Lepidoptera: Pyralidae), is much more severe on indica/xian rice than on japonica/geng rice (Oryza sativa) which matches pest outbreak data in cropping regions of China. The mechanistic basis of this difference among rice subspecies remains unclear. Using transcriptomic, metabolomic and genetic analyses in combination
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TaNAM‐6A is essential for nitrogen remobilisation and regulates grain protein content in wheat (Triticum aestivum L.) Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-18 Xinhao Meng, Hongyao Lou, Shanshan Zhai, Runqi Zhang, Guoyu Liu, Weiya Xu, Jiazheng Yu, Yufeng Zhang, Zhongfu Ni, Qixin Sun, Jiewen Xing, Baoyun Li
Grain protein content (GPC) is a crucial quality trait in bread wheat, which is influenced by the key transcription factor TaNAM. However, the regulatory mechanisms of TaNAM have remained largely elusive. In this study, a new role of TaNAM was unveiled in regulating nitrogen remobilisation which impacts GPC. The TaNAM knockout mutants generated by clustered regularly interspaced short palindromic repeats/Cas9
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The operation of PEPCK increases light harvesting plasticity in C4 NAD–ME and NADP–ME photosynthetic subtypes: A theoretical study Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-18 Chandra Bellasio, Marjorie R. Lundgren
The repeated emergence of NADP–malic enzyme (ME), NAD–ME and phosphoenolpyruvate carboxykinase (PEPCK) subtypes of C4 photosynthesis are iconic examples of convergent evolution, which suggests that these biochemistries do not randomly assemble, but are instead specific adaptations resulting from unknown evolutionary drivers. Theoretical studies that are based on the classic biochemical understanding
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Half of the 18O enrichment of leaf sucrose is conserved in leaf cellulose of a C3 grass across atmospheric humidity and CO2 levels Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-16 Juan C. Baca Cabrera, Regina T. Hirl, Rudi Schäufele, Jianjun Zhu, Hai Tao Liu, Xiao Ying Gong, Jérôme Ogée, Hans Schnyder
The 18O enrichment (Δ18O) of cellulose (Δ18OCel) is recognized as a unique archive of past climate and plant function. However, there is still uncertainty regarding the proportion of oxygen in cellulose (pex) that exchanges post‐photosynthetically with medium water of cellulose synthesis. Particularly, recent research with C3 grasses demonstrated that the Δ18O of leaf sucrose (Δ18OSuc, the parent substrate
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The interplay of short‐term mesophyll and stomatal conductance responses under variable environmental conditions Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-16 Diego A. Márquez, Florian A. Busch
Understanding the short‐term responses of mesophyll conductance (gm) and stomatal conductance (gsc) to environmental changes remains a challenging yet central aspect of plant physiology. This review synthesises our current knowledge of these short‐term responses, which underpin CO2 diffusion within leaves. Recent methodological advances in measuring gm using online isotopic discrimination and chlorophyll
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A histone deacetylase, FaSRT1‐2, plays multiple roles in regulating fruit ripening, plant growth and stresses resistance of cultivated strawberry Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-14 Liangxin Wang, Yuanxiu Lin, Guoyan Hou, Min Yang, Yuting Peng, Yuyan Jiang, Caixia He, Musha She, Qing Chen, Mengyao Li, Yong Zhang, Yunting Zhang, Yan Wang, Wen He, Xiaorong Wang, Haoru Tang, Ya Luo
Sirtuins (SRTs) are a group of nicotinamide adenine dinucleotide (NAD+)‐dependent deacetylase that target both histone and nonhistone proteins. The biological function of SRT in horticultural plants has been rarely studied. In this study, FaSRT1‐2 was identified as a key member of the 8 FaSRTs encoded in cultivated strawberry genome. Transient overexpression of FaSRT1‐2 in strawberry fruit accelerated
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Dynamics and interplay of photosynthetic regulatory processes depend on the amplitudes of oscillating light Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-14 Yuxi Niu, Shizue Matsubara, Ladislav Nedbal, Dušan Lazár
Plants have evolved multiple regulatory mechanisms to cope with natural light fluctuations. The interplay between these mechanisms leads presumably to the resilience of plants in diverse light patterns. We investigated the energy‐dependent nonphotochemical quenching (qE) and cyclic electron transports (CET) in light that oscillated with a 60‐s period with three different amplitudes. The photosystem
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Volatile‐mediated oviposition preference for healthy over root‐infested plants by the European corn borer Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-14 Csengele Hajdu, Béla Péter Molnár, Jamie M. Waterman, Ricardo Alberto Ruiz Machado, Dalma Radványi, Adrien Fónagy, Sheharyar Ahmed Khan, Thibault Vassor, Baptiste Biet, Matthias Erb, Zsolt Kárpáti, Christelle Aurélie Maud Robert
The selection of oviposition sites by female moths is crucial in shaping their progeny performance and survival, and consequently in determining insect fitness. Selecting suitable plants that promote the performance of the progeny is referred to as the Preference−Performance hypothesis (or ‘mother‐knows‐best’). While root infestation generally reduces the performance of leaf herbivores, little is known
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Biological nitrogen fixation maintains carbon/nitrogen balance and photosynthesis at elevated CO2 Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-14 Matthew D. Brooks, Ronnia C. Szeto
Understanding crop responses to elevated CO2 is necessary to meet increasing agricultural demands. Crops may not achieve maximum potential yields at high CO2 due to photosynthetic downregulation, often associated with nitrogen limitation. Legumes have been proposed to have an advantage at elevated CO2 due to their ability to exchange carbon for nitrogen. Here, the effects of biological nitrogen fixation
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The sensitivity of root water uptake to cold root temperature follows species‐specific upper elevational distribution limits of temperate tree species Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-14 Yating Li, Günter Hoch
Physiological water stress induced by low root temperatures might contribute to species‐specific climatic limits of tree distribution. We investigated the low temperature sensitivity of root water uptake and transport in seedlings of 16 European tree species which reach their natural upper elevation distribution limits at different distances to the alpine treeline. We used 2H‐H2O pulse‐labelling to
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Terpenoids are involved in the expression of systemic‐induced resistance in Austrian pine Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-14 Soumya K. Ghosh, Guncha Ishangulyyeva, Nadir Erbilgin, Pierluigi Bonello
Terpenoids are defense metabolites that are induced upon infection or wounding. However, their role in systemic‐induced resistance (SIR) is not known. Here, we explored the role of terpenoids in this phenomenon at a very early stage in the interaction between Austrian pine and the tip blight and canker pathogen Diplodia pinea. We induced Austrian pine saplings by either wounding or inoculating the
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OsCOPT7 is a copper exporter at the tonoplast and endoplasmic reticulum and controls Cu translocation to the shoots and grain of rice Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-14 Zhong Tang, Ya‐Fang Li, Zhi‐Hao Zhang, Xin‐Yuan Huang, Fang‐Jie Zhao
Copper (Cu) is an essential micronutrient for all living organisms but is also highly toxic in excess. Cellular homoeostasis of Cu is maintained by various transporters and metallochaperones. Here, we investigated the biological function of OsCOPT7, a member of the copper transporters (COPT) family, in Cu homoeostasis in rice. OsCOPT7 was mainly expressed in the roots and the expression was upregulated
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Leaf day respiration involves multiple carbon sources and depends on previous dark metabolism Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-06 Cyril Abadie, Julie Lalande, Corentin Dourmap, Anis M. Limami, Guillaume Tcherkez
Day respiration (Rd) is the metabolic, nonphotorespiratory process by which illuminated leaves liberate CO2 during photosynthesis. Rd is used routinely in photosynthetic models and is thus critical for calculations. However, metabolic details associated with Rd are poorly known, and this can be problematic to predict how Rd changes with environmental conditions and relates to night respiration. It
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Surrounded by luxury: The necessities of subsidiary cells Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-04 Thanh‐Hao Nguyen, Michael R. Blatt
The evolution of stomata marks one of the key advances that enabled plants to colonise dry land while allowing gas exchange for photosynthesis. In large measure, stomata retain a common design across species that incorporates paired guard cells with little variation in structure. By contrast, the cells of the stomatal complex immediately surrounding the guard cells vary widely in shape, size and count
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Harnessing weedy rice as functional food and source of novel traits for crop improvement Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-04 Ingudam Bhupenchandra, Sunil Kumar Chongtham, Ayam Gangarani Devi, Pranab Dutta, Elangbam Lamalakshmi, Sansuta Mohanty, Anil K. Choudhary, Anup Das, Konsam Sarika, Sumit Kumar, Sonika Yumnam, Diana Sagolsem, Y. Rupert Anand, Dawa Dolma Bhutia, M. Victoria, S. Vinodh, Chongtham Tania, Adhikarimayum Dhanachandra Sharma, Lipa Deb, Manas Ranjan Sahoo, Chandra Shekhar Seth, Prashant Swapnil, Mukesh Meena
A relative of cultivated rice (Oryza sativa L.), weedy or red rice (Oryza spp.) is currently recognized as the dominant weed, leading to a drastic loss of yield of cultivated rice due to its highly competitive abilities like producing more tillers, panicles, and biomass with better nutrient uptake. Due to its high nutritional value, antioxidant properties (anthocyanin and proanthocyanin), and nutrient
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Front Cover Image Plant Cell Environ. (IF 7.3) Pub Date : 2024-03-04 Bo Shang, Evgenios Agathokleous, Vicent Calatayud, Jinlong Peng, Yansen Xu, Shuangjiang Li, Shuo Liu, Zhaozhong Feng
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Plant glucosinolate biosynthesis and breakdown pathways shape the rhizosphere bacterial/archaeal community Plant Cell Environ. (IF 7.3) Pub Date : 2024-02-29 Eleanor C. M. Chroston, Nina Bziuk, Einar J. Stauber, Beena M. Ravindran, Annika Hielscher, Kornelia Smalla, Ute Wittstock
Rhizosphere microbial community assembly results from microbe‐microbe‐plant interactions mediated by small molecules of plant and microbial origin. Studies with Arabidopsis thaliana have indicated a critical role of glucosinolates in shaping the root and/or rhizosphere microbial community, likely through breakdown products produced by plant or microbial myrosinases inside or outside of the root. Plant
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Drought: A context‐dependent damper and aggravator of plant diseases Plant Cell Environ. (IF 7.3) Pub Date : 2024-02-27 Aanchal Choudhary, Muthappa Senthil‐Kumar
Drought dynamically influences the interactions between plants and pathogens, thereby affecting disease outbreaks. Understanding the intricate mechanistic aspects of the multiscale interactions among plants, pathogens, and the environment—known as the disease triangle—is paramount for enhancing the climate resilience of crop plants. In this review, we systematically compile and comprehensively analyse
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The transcriptional landscape of Populus pattern/effector‐triggered immunity and how PagWRKY18 involved in it Plant Cell Environ. (IF 7.3) Pub Date : 2024-02-27 Sisi Chen, Shuxian Tan, Zhelun Jin, Jiadong Wu, Yiyang Zhao, Weijie Xu, Sijia Liu, Yue Li, Huahong Huang, Fei Bao, Jianbo Xie
Plants trigger a robust immune response by activating massive transcriptome reprogramming through crosstalk between PTI and ETI. However, how PTI and ETI contribute to the quantitative or/and qualitative output of immunity and how they work together when both are being activated were unclear. In this study, we performed a comprehensive overview of pathogen‐triggered transcriptomic reprogramming by
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Reduced expression of bZIP19 and bZIP23 increases zinc and cadmium accumulation in Arabidopsis halleri Plant Cell Environ. (IF 7.3) Pub Date : 2024-02-26 Julien Spielmann, Marie Schloesser, Marc Hanikenne
Zinc is an essential micronutrient for all living organisms. When challenged by zinc‐limiting conditions, Arabidopsis thaliana plants use a strategy centered on two transcription factors, bZIP19 and bZIP23, to enhance the expression of several zinc transporters to improve their zinc uptake capacity. In the zinc and cadmium hyperaccumulator plant Arabidopsis halleri, highly efficient root‐to‐shoot zinc