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Plant Communications 2024年第7期5卷 251-260页

作者： Peipei Xu Wei Ma Huafeng Feng Weiming Cai laboratory of {1. and Environment CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesNo.300 Fenglin RoadShanghai 200032China State key {1. of NBC Protection for Civilian Beijing 102205China Department of Food Science College of Hospitality ManagementShanghai Business SchoolShanghai 200235China These authors contributed equally to this article

Freezing stress can seriously affect plant growth and development,but the mechanisms of these effects and plant responses to freezing stress require further ***,we identified a NAM,ATAF1.2,and CUC2(NAC)-family transcription factor(TF),NAC056,that can promote freezing tolerance in ***056 mRNA levels are strongly induced by freezing stress in roots,and the nac056 mutant exhibits compromised freezing ***056 acts positively in response to freezing by directly promoting key C-repeat-binding factor(CBF)pathway ***,we found that CBF1.regulates nitrate assimilation by regulating the nitrate reductase gene NIA1.in plants;therefore,NAC056–CBF1.NIA1.form a regulatory module for the assimilation of nitrate and the growth of roots under freezing *** addition,35S::NAC056 transgenic plants show enhanced freezing tolerance,which is partially reversed in the cbfs triple ***,NAC056 confers freezing tolerance through the CBF pathway,mediating plant responses to balance growth and freezing stress tolerance.

关键词： CBFs freezing tolerance NAC transcription factor nitrate assimilation root growth

Perenniality:From model plants to applications in agriculture

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molecular Plant 2024年第1期17卷 141-157页

作者： Bo Zhao Jia-Wei Wang National key {1. of Plant molecular Genetics CAS Center for Excellence in Molecular Plant Sciences(CEMPS)Institute of Plant Physiology and Ecology(SIPPE)Chinese Academy of Sciences(CAS)Shanghai 200032China School of Life Science and Technology ShanghaiTech UniversityShanghai 201210China key {1. of Plant Carbon Capture CASShanghai 200032China New Cornerstone Science laboratory Shanghai 200032China

To compensate for their sessile nature,plants have evolved sophisticated mechanisms enabling them to adapt to ever-changing *** such prominent feature is the evolution of diverse life history strategies,particularly such that annuals reproduce once followed by seasonal death,while perennials live longer by cycling growth *** intrinsic phenology is primarily genetic and can be altered by environmental *** evolutionary transitions between annual and perennial life history strategies are common,perennials account for most species in nature because they survive well under year-round *** proportion,however,is reversed in ***,perennial crops promise to likewise protect and enhance the resilience of agricultural ecosystems in response to climate *** significant endeavors that have been made to generate perennial crops,progress is slow because of barriers in studying perennials,and many developed species await further *** findings in model species have illustrated that simply rewiring existing genetic networks can lead to lifestyle *** implies that engineering plant life history strategy can be achieved by manipulating only a few {1. *** this review,we summarize our current understanding of genetic basis of perenniality and discuss major questions and challenges that remain to be addressed.

关键词： perenniality developmental plasticity flowering time poplar Arabis alpina perennial crops life history strategy

Changes in Leaf Stomatal Properties in Rice with the Growing Season

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 807-817页

作者： Jiana Chen Fangbo Cao Min Huang Rice and Product Ecophysiology Key Laboratory of Ministry of Education for Crop Physiology and Molecular BiologyHunan Agricultural UniversityChangsha410128China National Engineering Research Center of Rice Hunan Agricultural UniversityChangsha410128China

Transplanting rice varieties grown in different seasons can lead to different yields due to different dry matterproduction. Early-season rice varieties transplanted in the late season can obtain high yields with short-growthduration and higher yields driven by higher dry matter production. To make clear the variations in dry matterproduction across seasons, four early-season rice varieties were chosen for late-season transplantation. The grainyield, dry matter accumulation, leaf photosynthetic, and leaf stomatal properties were studied. It was observedthat the average yields of these four varieties in the late season were 33% greater, despite a reduced growth periodof 1. days in comparison with the early season. Furthermore, there was a notable increase in both total and postheadingdry matter production during the late season. The leaf net photosynthetic rate, stomatal area, stomatalwidth, and stomatal length were higher in the late season. Despite no significant difference in stomatal densitybetween seasons, strong positive linear relationships were observed between net photosynthetic rate and stomatalconductance, and between stomatal conductance and area. These relationships demonstrate that the increase ofthe stomatal width and length of the leaves in the late season leads to an increase in the stomatal area, therebyincreasing the stomatal conductance and enhancing the photosynthesis of the leaves. Consequently, this leads togreater dry matter production and a higher yield compared to the early season. Therefore, when breeding newhigh-yielding and short-growing varieties, the large stomatal area can be used as a reference index.

关键词： photosynthesis rice stomatal properties season yield

A cytochrome c551.mediates the cyclic electron transport chain of the anoxygenic phototrophic bacterium Roseiflexus castenholzii

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Plant Communications 2024年第2期5卷 79-93页

作者： Lu Yu Zhenzhen Min Menghua Liu Yueyong Xin Aokun Liu Jian Kuang Wenping Wu Jingyi Wu Huimin He Jiyu Xin Robert EBlankenship Changlin Tian Xiaoling Xu Department of Biochemistry and molecular Biology School of Basic Medical Sciences and Affiliated HospitalKey Laboratory of Aging and Cancer Biology of Zhejiang ProvinceHangzhou Normal UniversityHangzhou 311121China High Magnetic Field laboratory Chinese Academy of SciencesHefei 230031China photosynthesis Research Center College of Life and Environmental SciencesHangzhou Normal UniversityHangzhou 311121China The First Affiliated Hospital of USTC Division of Life Sciences and MedicineCenter for Bioanalytical ChemistryHefei National Laboratory of Physical Science at MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Departments of Biology and Chemistry Washington University in St.LouisSt.LouisMO 63130USA

Roseiflexus castenholzii is a gram-negativefilamentous phototrophic bacterium that carries out anoxygenic photosynthesis through a cyclic electron transport chain(ETC).The ETC is composed of a reaction center(RC)–light-harvesting(LH)complex(rcRC–LH);an alternative complex III(rcACIII),which functionally re-places the cytochrome bc1.b6f complex;and the periplasmic electron acceptor auracyanin(rcAc).Although compositionally and structurally different from the bc1.b6f complex,rcACIII plays similar essential roles in oxidizing menaquinol and transferring electrons to the ***,rcACIII-mediated electron transfer(which includes both an intraprotein route and a downstream route)has not been clearly elucidated,nor have the details of cyclic ***,we identify a previously unknown monoheme cytochrome c(cyt c551.as a novel periplasmic electron acceptor of *** reduces the light-excited rcRC–LH to complete a cyclic *** also reveal the {1. mechanisms involved in the ETC using electron paramagnetic resonance(EPR),spectroelectrochemistry,and enzymatic and structural *** that electrons released from rcACIII-oxidized menaquinol are transferred to two alternative periplasmic electron acceptors(rcAc and cyt c551.,which eventually reduce the rcRC to form the complete cyclic *** work serves as a foundation for further studies of ACIII-mediated electron transfer in anoxygenic photosynthesis and broadens our under-standing of the diversity and {1. evolution of prokaryotic ETCs.

关键词： cytochrome c menaquinol oxidoreductase electron transport chain electron paramagnetic reso-nance light-harvesting complex

Integrative regulatory mechanisms of stomatal movements under changing climate

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Journal of Integrative Plant Biology 2024年第3期66卷 368-393页

作者： Jingbo Zhang Xuexue Chen Yajing Song Zhizhong Gong State key {1. of Nutrient Use and Management College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijing 100193China State key {1. of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China State key {1. of Plant environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijing 100094China Institute of Life Science and Green Development School of Life SciencesHebei UniversityBaoding 071001China

Global climate change-caused drought stress,high temperatures and other extreme weather profoundly impact plant growth and development,restricting sustainable crop *** cope with various environmental stimuli,plants can optimize the opening and closing of stomata to balance CO_(2)uptake for {1. and water loss from *** cells perceive and integrate various signals to adjust stomatal pores through turgor pressure *** mechanisms and signaling networks underlying the stomatal movements in response to environmental stresses have been extensively studied and *** review focuses on the molecular mechanisms of stomatal movements mediated by abscisic acid,light,CO_(2),reactive oxygen species,pathogens,temperature,and other *** discussed the significance of elucidating the integrative mechanisms that regulate stomatal movements in helping design smart crops with enhanced water use efficiency and resilience in a climate-changing world.

关键词： environmental stress guard cell plant regulatory mechanisms stomatal movements

Plant regeneration in the new era:from molecular mechanisms to biotechnology applications

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Science China(Life Sciences) 2024年第7期67卷 1338-1367页

作者： Chunli Chen Yuxin Hu Momoko Ikeuchi Yuling Jiao Kalika Prasad Ying Hua Su Jun Xiao Lin Xu Weibing Yang Zhong Zhao Wenkun Zhou Yun Zhou Jian Gao Jia-Wei Wang National key {1. for Germplasm Innovation&Utilization of Horticultural Crops Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China College of Life Science and Technology Huazhong Agricultural UniversityWuhan 430070China key {1. of Plant molecular physiology Institute of BotanyChinese Academy of Sciences(CAS)China National Botanical GardenBeijing 100093China Division of Biological Sciences Graduate School of Science and TechnologyNara Institute of Science and TechnologyNara 630-0192Japan State key {1. of Protein and Plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China Peking-Tsinghua Center for Life Sciences Center for Quantitative BiologyAcademy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China Indian Institute of Science Education and Research Pune 411008IndiaThiruvananthapuram 695551India State key {1. of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai’an 271018China Sino-German Joint Research Center on Agricultural Biology Shandong Agricultural UniversityTai’an 271018China key {1. of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental Biology(IGDB)CASBeijing 100101China CAS-JIC Centre of Excellence for Plant and Microbial Science(CEPAMS) IGDBCASBeijing 100101China National key {1. of Plant molecular Genetics CEMPSInstitute of Plant Physiology and Ecology(SIPPE)CASShanghai 200032China CEPAMS SIPPECASShanghai 200032China Hefei National laboratory for Physical Sciences at the Microscale CEMPSSchool of Life SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230027China State key {1. of Plant environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijing 100193China Department of Botany and Plant Pathology and Center for Plant Biology Purdue UniversityWest Lafayette 47907USA School of Life Science and Technology Shang

Plants or tissues can be regenerated through various *** animal regeneration,cell totipotency and pluripotency are the molecular basis of plant *** systematic studies on Arabidopsis thaliana gradually unravel the fundamental mechanisms and principles underlying plant ***,plant hormones,cell division,epigenetic remodeling,and transcription factors play crucial roles in reprogramming somatic cells and reestablishing meristematic *** research on basal non-vascular plants and monocot crops has revealed that plant regeneration differs among species,with various plant species using distinct mechanisms and displaying significant differences in regenerative *** multi-omics studies at the single-cell level,tracking plant regeneration processes in real-time,and deciphering the natural variation in regenerative capacity will ultimately help understand the essence of plant regeneration,improve crop regeneration efficiency,and contribute to future crop design.

关键词： apical meristem model species regeneration phytohormone plant cell reprogramming somatic embryogenesis

The Cysteine Pairs in CLV2 are Not Necessary for Sensing the CLV3 Peptide in Shoot and Root Meristems

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Journal of Integrative Plant Biology 2010年第9期52卷 774-781页

作者： Xiufen Song Peng Guo Chen Li Chun-Ming Liu key {1. of photosynthesis and environmental molecular physiology Institute of Botany Chinese Academy of Sciences Beijing 100093 China

Receptor-like proteins （RLPs） are involved in both plant defense and developmental processes. Previous genetic and biochemical studies show that the leucine-rich repeat （LRR） receptor-like protein CLAVATA2 （CLV2） functions together with CLAVATA1.（CLV1. and CORYNE （CRN） in Arabidopsis to limit the stem cell number in shoot apical meristem, while in root it acts with CRN to trigger a premature differentiation of the stem cells after sensing the exogenously applied peptides of CLV3p, CLE1.p or CLE40p. It has been proposed that disulfide bonds might be formed through two cysteine pairs in the extracellular LRR domains of CLV1.and CLV2 to stabilize the receptor complex. Here we tested the hypothesis by replacing these cysteines with alanines and showed that depletions of one or both of the cysteine pairs do not hamper the function of CLV2 in SAM maintenance. In vitro peptide assay also showed that removal of the cysteine pairs did not affect the perception of CLV3 peptides in roots. These observations allow us to conclude that the formation of disulfide bonds is not needed for the function of CLV2.

关键词： Proteins Protein products Roots Stems Shoots Cells Rooting Senses Peptides Cysteine

Signaling in Plant Disease Resistance and Symbiosis

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Journal of Integrative Plant Biology 2008年第7期50卷 799-807页

作者： SongziZhao Xiaoquan Qi key {1. of photosynthesis and environmental molecular physiology Instfute of Botany the Chinese Academy of Sciences Beijing 100093 China

Interactions between plants and microbes result in plant disease and symbiosis. The former causes considerable economic damage in modern agriculture, while the latter has produced great beneficial effects to our agriculture system. Comparison of the two interactions has revealed that a common panel of signaling pathways might participate in the establishment of the equilibrium between plant and microbes or its break-up. Plants appear to detect both pathogenic and symbiotic microbes by a similar set of genes. All symbiotic microbes seem to produce effectors to overcome plant basal defenses and it is speculated that symbiotic effectors have functions similar to pathogenic ones. Signaling molecules, salicylic acid （SA）, jasmonic acid （JA） and ethylene （ET）, are involved in both plant defense and symbiosis. Switching off signals contributing to deterioration of disease symptom would establish a new equilibrium between plant and pathogenic microbes. This would facilitate the development of strategies for durable disease resistance.

关键词： calcium signals disease resistance effector pathogen-associated molecular patterns symbiosis.

Cloning and expression analysis of a dirigent protein gene from the resurrection plant Boea hygrometrica

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Progress in Natural Science:Materials International 2009年第3期19卷 347-352页

作者： Renhua Wu, Lili Wang, Zhi Wang, Haihong Shang, Xia Liu, Yan Zhu, Dongdong Qi, Xin Deng * key {1. of photosynthesis and environmental molecular physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 1.0093, China [a]key {1. of photosynthesis and environmental molecular physiology Institute of Botany Chinese Academy of Sciences Beijing 100093 China

Resurrection plants are tolerant to extreme dehydration and are useful model systems to study genes that play a role in drought tolerance. A gene fragment encoding a dirigent protein that is predicted to function in lignin biosynthesis was identified from leaves of the resurrection plant Boea hygrometrica via cDNA microarray screening. A cDNA, designated BhDIR1. containing the complete predicted open reading frame, was obtained by 50-RACE. BhDIR1.transcripts were found to be accumulated in response to changes in plant dehydration status, exogenously applied phytohormones and signaling molecules, and temperature stresses. BhDIR1.encodes a protein of 1.9 amino acids, which shows 20-40% similarity to dirigent proteins reported from other plants. BhDIR1.is predicted to contain a cleavable signal peptide at the N-terminal, and its plasma membrane/cell wall localization was confirmed using a GFP fusion protein assay. Consistent with this discovery, the acid-soluble lignin content decreased in dehydrated B. hygrometrica leaves. Taken together, our results indicate a protective role for a dirigent protein in response to drought stress by changing the physical characters of lignin which in turn is predicted to affect the mechanical strength and flexibility of the plant cell wall.

关键词： Resurrection plant Dirigent protein Drought Lignin Cell wall

molecular characterization of OsPRP1.from rice,which is expressed preferentially in anthers

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Chinese Science Bulletin 2003年第22期48卷 2458-2465页

作者： WU Xiaohuai, MAO Aijun, WANG Rong, WANG Tai, SONG Yanru & TONG Zhe key {1. of photosynthesis and environmental molecular physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 1.0093, China Correspondence should be addressed to Wang Tai (e-mail: twang@ ***) key {1. of photosynthesis and environmental molecular physiology Institute of Botany Chinese Academy of Sciences China

A proline-rich protein-encoding cDNA encoded by a rice gene, OsPRP1. was isolated by PCR-mediated RNA subtraction hybridization strategy and rapid amplification of cDNA ends. The deduced protein consists of 224 amino acids with the highest level of proline residue (1..29%). Following the putative signal peptide, OsPRP1.contains two structural domains, of which the N-terminal domain lacks Pro-rich repetitive sequences, and the C-terminal domain has two repetitive proline-rich sequences of 1. amino acid residues with PEPK motifs. Southern blot and sequence analysis show that OsPRP1.exists as four copies in rice genome and is localized in rice chromosome 1.. RT-PCR experiments reveal that OsPRP1.is expressed preferentially in spikelets and buds with lower levels in roots and leaves. In situ hybridization indicates that OsPRP1.transcripts are present at high levels in pollen mother cells (PMCs), meiotic PMCs, tapetal cells and vascular bundle cells of flower organs. The expression of OsPRP1.in anthers has temporal specificity. The transcripts are accumulated at high levels in PMCs, at the highest levels in meiotic PMCs and at undetectable levels in uninucleate pollen. In buds the transcripts are only detected in the epidermal cells of coleoptiles and leaf primordial.

关键词：花粉囊脯氨酸蛋白质 DNA 大米