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How plants sense and respond to osmotic stress

Journal of Integrative plant Biology 2024年第3期66卷 394-423页

作者： Bo Yu Dai-Yin Chao Yang Zhao Shanghai center for plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesThe Chinese Academy of SciencesShanghai 200032China Key Laboratory of plant Carbon Capture The Chinese Academy of SciencesShanghai 200032China National Key Laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyThe Chinese Academy of SciencesShanghai 200032China University of Chinese Academy of Sciences Beijing 100049China

Drought is one of the most serious abiotic stresses to land *** sense and respond to drought stress to survive under water *** have studied how plants sense drought stress,or osmotic stress caused by drought,ever since Charles Darwin,and gradually obtained clues about osmotic stress sensing and signaling in *** stress is a physical stimulus that triggers many physiological changes at the cellular level,including changes in turgor,cell wall stiffness and integrity,membrane tension,and cell fluid volume,and plants may sense some of these stimuli and trigger downstream *** this review,we emphasized water potential and movements in organisms,compared putative signal inputs in cell wall-containing and cell wall-free organisms,prospected how plants sense changes in turgor,membrane tension,and cell fluid volume under osmotic stress according to advances in plants,animals,yeasts,and bacteria,summarized multilevel biochemical and physiological signal outputs,such as plasma membrane nanodomain formation,membrane water permeability,root hydrotropism,root halotropism,Casparian strip and suberin lamellae,and finally proposed a hypothesis that osmotic stress responses are likely to be a cocktail of signaling mediated by multiple *** also discussed the core scientific questions,provided perspective about the future directions in this field,and highlighted the importance of robust and smart root systems and efficient source-sink allocations for generating future high-yield stress-resistant crops and plants.

关键词： cell volume drought membrane tension osmotic stress turgor

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Single-cell RNA sequencing facilitates the elucidation of the complete biosynthesis of the antidepressant hyperforin in St. John's wort

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molecular plant 2024年第9期17卷 1439-1457页

作者： Song Wu Ana Luisa Malaco Morotti Jun Yang Ertao Wang Evangelos C.Tatsis National Key Laboratory of plant molecular genetics CASs Center for Excellence in Molecular Plant SciencesShanghai lnstitute of Plant Physiology and EcologyChineseAcademy of SciencesShanghai 200032China University of Chinese Academy of Sciences Shanghai 200032China UEPAMS-CAS-JICs Centre of Excellencefor plant anamlcroblalSclence Snangnal 200032Cnina

Hyperforin is the compound responsible for the effectiveness of ***'s wort(Hypericum perforatum)as an antidepressant,but its complete biosynthetic pathway remains *** discovery based on co-expression analysis of bulk RNA-sequencing data or genome mining failed to discover the missing steps in hyperforin *** this study,we sequenced the 1.54-Gb tetraploid *** genome assem-bled into 32 chromosomes with the scaffold N50 value of 42.44 *** single-cell RNA sequencing,we iden-tified a type of cell,“Hyper cells”,wherein hyperforin biosynthesis de novo takes place in both the leaves and *** pathway reconstitution in yeast and tobacco,we identified and characterized four transmembrane prenyltransferases(HpPT1-4)that are localized at the plastid envelope and complete the hyperforin biosynthetic *** hyperforin polycyclic scaffold is created by a reaction cascade involving an irregular isoprenoid coupling and a tandem *** findings reveal how and where hy-perforin is biosynthesized,enabling synthetic-biology reconstitution of the complete ***,this study not only deepens our comprehension of specialized metabolism at the cellularlevel but also provides strategic guidance for elucidation of the biosynthetic pathways of other specializied metabolites in plants.

关键词： hyperforin Hypericum perforatum de novo genome sequencing single-cell RNA sequencing biosyn-thetic pathway meroterpenoids

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Genetic variation in a heat shock transcription factor modulates cold tolerance in maize

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molecular plant 2024年第9期17卷 1423-1438页

作者： Lei Gao Lingling Pan Yiting Shi Rong Zeng Minze Li Zhuoyang Li Xuan Zhang Xiaoming Zhao Xinru Gong Wei Huang Xiaohong Yang Jinsheng Lai Jianru Zuo Zhizhong Gong Xiqing Wang Weiwei Jin Zhaobin Dong Shuhua Yang State Key Laboratory of plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingCollege of Biological SciencesCenter for Crop Functional Genomics and Molecular BreedingChina Agricultural UniversityBeijing 100193China State Key Laboratory of Maize Bio-breeding National Maize Improvement CenterFrontiers Science Center for Molecular Design BreedingDepartment of Plant Geneticsand BreedingChinaAgricultural UniversityBeijingChina State Key Laboratory of plant Genomics and National plant Gene research center Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101China

Understanding how maize(Zea mays)responds to cold stress is crucial for facilitating breeding programs of cold-tolerant *** extensive utilization of the genome-wide association study(GWAs)approach for exploring favorable natural alleles associated with maize cold tolerance,few studies have successfully identified candidate genes that contribute to maize cold *** this study,we used a diverse panel of inbred maize lines collected from different germplasm sources to perform a GWAS on var-iations in the relative injured area of maize true leaves during cold stress-a trait very closely correlated with maize cold *** identified HsF21,which encodes a B-class heat shock transcription factor(HSF)that positively regulates cold tolerance at both the seedling and germination *** varia-tions in the promoter of the cold-tolerant HSF21Hap1 allele led to increased HSF21 expression under cold stress by inhibiting binding of the basic leucine zipper bziP68 transcription factor,a negative regulator of cold *** integrating transcriptome deep sequencing,DNA affinity purification sequencing,and targeted lipidomic analysis,we revealed the function of HsF21 in regulating lipid metabolism homeo-stasis to modulate cold tolerance in *** addition,we found that HsF21 confers maize cold tolerance without incurring yield ***,this study establishes HsF21 as a key regulator that en-hances cold tolerance in maize,providing valuable genetic resources for breeding of cold-tolerant maize varieties.

关键词： heat shock factor HSF21 cold tolerance natural variation bZiP68 lipid metabolism maize

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The regulatory mechanism of rapid lignification for timely anther dehiscence

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Journal of Integrative plant Biology 2024年第8期66卷 1788-1800页

作者： Jing-Shi Xue Yi-Feng Feng Ming-Qi Zhang Qin-Lin Xu Ya-Min Xu Jun-Qin Shi Li-Fang Liu Xiao-Feng Wu Shui Wang Zhong-Nan Yang Shanghai Key Laboratory of plant molecular Sciences College of Life SciencesShanghai Normal UniversityShanghai 200234China National Key Laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China University of the Chinese Academy of Sciences Beijing 100049China Development center of plant Germplasm Resources College of Life SciencesShanghai Normal UniversityShanghai 200234China

Anther dehiscence is a crucial event in plant reproduction,tightly regulated and dependent on the lignification of the anther *** this study,we investigated the rapid lignification process that ensures timely anther dehiscence in *** findings reveal that endothecium lignification can be divided into two distinct *** Phase Ⅰ,lignin precursors are synthesized without polymerization,while Phase Ⅱ involves simultaneous synthesis of lignin precursors and *** transcription factors MYB26,NST1/2,and ARF17 specifically regulate the pathway responsible for the synthesis and polymerization of lignin monomers in Phase Ⅱ.MYB26-NST1/2 is the key regulatory pathway responsible for endothecium lignification,while ARF17 facilitates this process by interacting with ***,our results demonstrate that the lignification of the endothecium,which occurs within approximately 26 h,is much faster than that of the vascular *** findings provide valuable insights into the regulation mechanism of rapid lignification in the endothecium,which enables timely anther dehiscence and successful pollen release during plant reproduction.

关键词： anther dehiscence ARF17 endothecium lignin MYB26 NST

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Two ABCI family transporters,OsABCI15 and OsABCI16,are involved in grain-filling in rice

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Journal of genetics and Genomics 2024年第5期51卷 492-506页

作者： Bin Ma Xiubiao Cao Xiaoyuan Li Zhong Bian Qi-Qi Zhang Zijun Fang Jiyun Liu Qun Li Qiaoquan Liu Lin Zhang Zuhua He Jiangsu Key Laboratory of Crop Genomics and molecular Breeding/Zhongshan Biological Breeding Laboratory/Key Laboratory of plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop genetics and Physiology Agricultural College of Yangzhou UniversityYangzhouJiangsu 225009China Jiangsu Co-Innovation center for Modern Production Technology of Grain Crops Jiangsu Key Laboratory of Crop Genetics and PhysiologyYangzhou UniversityYangzhouJiangsu 225009China National Key Laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology&EcologyChinese Academy of SciencesShanghai 200032China Institute of Biotechnology Hangzhou Academy of Agricultural SciencesHangzhouZhejiang 310024China joint International research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education Yangzhou UniversityYangzhouJiangsu 225009China

Seed development is critical for plant reproduction and crop yield,with panicle seed-setting rate,grain-filling,and grain weight being key seed characteristics for yield ***,few genes are known to regulate grain ***,we identify two adenosine triphosphate(ATP)-binding cassette(ABC)I-type transporter genes,OsABCI15 and OsABCI16,involved in rice *** genes are highly expressed in developing seeds,and their proteins are localized to the plasma membrane and ***,knockout of OsABCI15 and OsABCI16 results in a significant reduction in seed-setting rate,caused predominantly by the severe empty pericarp phenotype,which differs from the previously reported low seed-setting phenotype resulting from failed *** analysis indicates that OsABCI15 and OsABCI16 participate in ion homeostasis and likely export ions between filial tissues and maternal tissues during grain ***,overexpression of OsABCI15 and OsABCI16 enhances the seed-setting rate and grain yield in transgenic plants and decreases ion accumulation in brown ***,the OsABCI15/16 orthologues in maize exhibit a similar role in kernel development,as demonstrated by their disruption in transgenic ***,ourﬁndings reveal the important roles of two ABC transporters in cereal grain filling,highlighting their value in crop yield improvement.

关键词： ABC transporters Rice Grain filling Ion homeostasis Grain yield

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DGK5-mediated phosphatidic acid homeostasis interplays with reactive oxygen species in plant immune signaling

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Journal of Integrative plant Biology 2024年第7期66卷 1263-1265页

作者： Dian Wang Minhang Yuan Yamei Zhuang Xiu-Fang Xin Guang Qi Crop research Institute Shandong Academy of Agricultural Sciences/National Engineering Research Center of Wheat and Maize/Shandong Technology Innovation Center of WheatJinan 252100China College of Agronomy Qingdao Agricultural UniversityQingdao 266109China National Key Laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China

plants have evolved a complex innate immune system that deploys two interconnected receptor layers to detect the invasion of various *** surface-resident pattern recognition receptors(PRRs)perceive pathogen-or microbeassociated molecular patterns(PAMPs/MAMPs),initiating a basal defense response called pattern-triggered immunity(PTI)(Zhou and Zhang,2020).

关键词： pattern homeostasis immunity

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Wood of trees:Cellular structure,molecular formation,and genetic engineering

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Journal of Integrative plant Biology 2024年第3期66卷 443-467页

作者： Yingying Zhu Laigeng Li State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems and College of Ecology Lanzhou UniversityLanzhou 730000China National Key Laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China

Wood is an invaluable asset to human society due to its renewable nature,making it suitable for both sustainable energy production and material ***,wood derived from forest trees plays a crucial role in sequestering a significant portion of the carbon dioxide fixed during photosynthesis by terrestrial ***,with the expansion of the global population and ongoing industrialization,forest coverage has been substantially decreased,resulting in significant challenges for wood production and *** production practices have changed away from natural forests toward plantation ***,understanding the underlying genetic mechanisms of wood formation is the foundation for developing high-quality,fast-growing plantation *** ideal forest trees for wood production using genetic technologies has attracted the interest of *** studies have been carried out in recent years on the molecular,genetic,and cell-biological mechanisms of wood formation,and considerable progress and findings have been *** studies and findings indicate enormous possibilities and prospects for tree *** review will outline and assess the cellular and molecular mechanisms of wood formation,as well as studies on genetically improving forest trees,and address future development prospects.

关键词： cambium cell wall Populus wood formation xylem

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Modern phenomics to empower holistic crop science, agronomy, and breeding research

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Journal of genetics and Genomics 2024年第8期51卷 790-800页

作者： Ni Jiang Xin-Guang Zhu Institute of genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China center of Excellence for molecular plant Sciences Chinese Academy of SciencesShanghai 200032China

Crop phenomics enables the collection of diverse plant traits for a large number of samples along different time scales,representing a greater data collection throughput compared with traditional *** modern crop phenomics use different sensors to collect reflective,emitted,and fluorescence signals,etc.,from plant organs at different spatial and temporal *** multi-modal,high-dimensional data not only accelerates basic research on crop physiology,genetics,and whole plant systems modeling,but also supports the optimization of field agronomic practices,internal environments of plant factories,and ultimately crop *** challenges and opportunities facing the current crop phenomics research community include developing community consensus or standards for data collection,management,sharing,and processing,developing capabilities to measure physiological parameters,and enabling farmers and breeders to effectively use phenomics in the field to directly support agricultural production.

关键词： Crop phenomics High-throughput phenotyping Traits Crop designer breeding Agronomy

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J-family genes redundantly regulate flowering time and increase yield in soybean

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The Crop Journal 2024年第3期12卷 944-949页

作者： Haiyang Li Zheng Chen Fan Wang Hongli Xiang Shuangrong Liu Chuanjie Gou Chao Fang Liyu Chen Tiantian Bu Fanjiang Kong Xiaohui Zhao Baohui Liu Xiaoya Lin Guangdong Key Laboratory of plant Adaptation and molecular Design/Guangzhou Key Laboratory of Crop Gene Editing/Innovative center of molecular genetics and Evolution School of Life SciencesGuangzhou UniversityGuangzhou 510006GuangdongChina

Soybean(Glycine max)is a short-day crop whose flowering time is regulated by *** longjuvenile trait extends its vegetative phase and increases yield under short-day *** variation in J,the major locus controlling this trait,modulates flowering *** report that the three J-family genes influence soybean flowering time,with the triple mutant Guangzhou Mammoth-2 flowering late under short days by inhibiting transcription of E1-family genes.J-family genes offer promising allelic combinations for breeding.

关键词： Soybean Flowering time Yield J-family genes

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Mechanisms underlying key agronomic traits and implications for molecular breeding in soybean

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Journal of genetics and Genomics 2024年第4期51卷 379-393页

作者： Chao Fang Haiping Du Lingshuang Wang Baohui Liu Fanjiang Kong Guangdong Key Laboratory of plant Adaptation and molecular Design Guangzhou Key Laboratory of Crop Gene EditingInnovative Center of Molecular Genetics and EvolutionSchool of Life SciencesGuangzhou UniversityGuangzhouGuangdong 510006China

Soybean(Glycine max[L.]Merr.)is an important crop that provides protein and vegetable oil for human *** soybean is a photoperiod-sensitive crop,its cultivation and yield are limited by the photoperiodic conditions in the *** contrast to other major crops,soybean has a special plant architecture and a special symbiotic nitrogen fixation system,representing two unique breeding ***,flowering time,plant architecture,and symbiotic nitrogen fixation are three critical or unique yielddetermining *** review summarizes the progress made in our understanding of these three critical yield-determining factors in ***,we propose potential research directions to increase soybean production,discuss the application of genomics and genomic-assisted breeding,and explore research directions to address future challenges,particularly those posed by global climate changes.

关键词： Soybean Grain yield Flowering time plant architecture Nodulation Symbiotic nitrogen fixation Genome study

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