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Rice ONAC016 promotes leaf senescence through abscisic acid signaling pathway involving OsNAP

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The Crop Journal 2024年第3期12卷 709-720页

作者： Eunji Gi Sung-Hwan Cho Suk-Hwan Kim Kiyoon Kang Nam-Chon Paek Department of Agriculture Forestry and BioresourcesPlant Genomics and Breeding InstituteResearch Institute of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Division of Life Sciences Incheon National UniversityIncheon 22012Republic of Korea

Senescence-induced NAC(senNAC)TFs play a crucial role in senescence during the final stage of leaf *** this study,we identified a rice senNAC,ONAC016,which functions as a positive regulator of leaf *** expression of ONAC016 increased rapidly in rice leaves during the progression of dark-induced and natural *** onac016-1 knockout mutant showed a delayed leaf yellowing phenotype,whereas the overexpression of ONAC016 accelerated leaf ***,ONAC016 expression was upregulated by abscisic acid(ABA),and thus detached leaves of the onac016-1 mutant remained green much longer under ABA *** RT-PCR analysis showed that ONAC016 upregulates the genes associated with chlorophyll degradation,senescence,and ABA *** one-hybrid and dual-luciferase assays revealed that ONAC016 binds directly to the promoter regions of OsNAP,a key gene involved in chlorophyll degradation and ABA-induced *** together,these results suggest that ONAC016 plays an important role in promoting leaf senescence through the ABA signaling pathway involving OsNAP.

关键词： Rice ONAC016 OsNAP Leaf senescence Abscisic acid signaling

OsbZIP53 Negatively Regulates Immunity Response by Involving in Reactive Oxygen Species and Salicylic Acid Metabolism in Rice

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Rice science 2024年第2期31卷 190-202,I0022-I0028页

作者： WU Lijuan HAN Cong WANG Huimei HE Yuchang LIN Hai WANG Lei CHEN Chen E Zhiguo State Key Laboratory of Rice Biology and breeding China National Rice Research InstituteHangzhou 310006China Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of plant Functional genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop genomics and Molecular breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Agricultural College of Yangzhou UniversityYangzhou 225009China

The basic region/leucine zipper(bZIP)transcription factors play important roles in plant development and responses to abiotic and biotic ***53 regulates resistance to Magnaporthe oryzae in rice by analyzing APIP5-RNAi transgenic *** further investigate the biological functions of OsbZIP53,we generated osbzip53 mutants using CRISPR/Cas9 editing and also constructed OsbZIP53 over-expression transgenic *** analysis of phenotypical,physiological,and transcriptional data showed that knocking-out OsbZIP53 not only improved disease resistance by inducing a hypersensitivity response in plants,but also regulated the immune response through the salicylic acid ***,disrupting OsbZIP53 increased H2O2 accumulation by promoting reactive oxygen species generation through up-regulation of several respiratory burst oxidase homologs(Osrboh genes)and weakened H2O2 degradation by directly targeting *** addition,the growth of osbzip53 mutants was seriously impaired,while OsbZIP53 over-expression lines displayed a similar phenotype to the wild type,suggesting that OsbZIP53 has a balancing effect on rice immune response and growth.

关键词： OsbZIP53 hypersensitive response reactive oxygen species metabolism rice immunity salicylic acid transcription factor

Ca^(2+)-independent ZmCPK2 is inhibited by Ca^(2+)-dependent ZmCPK17 during drought response in maize

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Journal of Integrative plant Biology 2024年第7期66卷 1313-1333页

作者： Xiaoying Hu Jinkui Cheng Minmin Lu Tingting Fang Yujuan Zhu Zhen Li Xiqing Wang Yu Wang Yan Guo Shuhua Yang Zhizhong Gong State Key Laboratory of plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingCenter for Crop Functional Genomics and Molecular BreedingCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China College of Life Sciences Institute of Life Science and Green DevelopmentHebei UniversityBaoding 071002China

Calcium oscillations are induced by different ***-dependent protein kinases(CDPKs/CPKs)are one major group of the plant calcium decoders that are involved in various processes including drought *** CPKs are ***,we identified ZmCPK2 as a negative regulator of drought resistance by screening an overexpression transgenic maize *** found that ZmCPK2 does not bind calcium,and its activity is mainly inhibited during short term abscisic acid(ABA)treatment,and dynamically changed in prolonged ***,ZmCPK2 interacts with and is inhibited by calcium-dependent ZmCPK17,a positive regulator of drought resistance,which is activated by ***17 could prevent the nuclear localization of ZmCPK2 through phosphorylation of ***2 interacts with and phosphorylates and activates ZmYAB15,a negative transcriptional factor for drought *** results suggest that drought stress-induced Ca^(2+)can be decoded directly by ZmCPK17 that inhibits ZmCPK2,thereby promoting plant adaptation to water deficit.

关键词： CDPK drought response phosphorylation stomatal movement transcriptional regulation

Methane Emission from Rice Fields:Necessity for Molecular Approach for Mitigation

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Rice science 2024年第2期31卷 159-178页

作者： Sujeevan RAJENDRAN Hyeonseo PARK Jiyoung KIM Soon Ju PARK Dongjin SHIN Jong-Hee LEE Young Hun SONG Nam-Chon PAEK Chul Min KIM Department of Horticulture Industry Wonkwang UniversityIksan 54538Korea plant Molecular Biology and Biotechnology Research Center Gyeongsang National UniversityJinju 52828Korea Department of Southern Area Crop Science National Institute of Crop ScienceMiryang 50424Korea Department of Agricultural Biotechnology Seoul National UniversitySeoul 08826Korea Department of plant Science Plant Genomics and Breeding InstituteResearch Institute of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Korea

Anthropogenic methane emissions are a leading cause of the increase in global averagetemperatures,often referred to as global *** soils play a significant role in methaneproduction,where the anaerobic conditions promote the production of methane by *** fields contribute a considerable portion of agricultural methane emissions,as riceplants provide both factors that enhance and limit methane *** plants harbor both methaneproducingand methane-oxidizing *** from rice roots provide source for methaneproduction,while oxygen delivered from the root aerenchyma enhances methane *** haveshown that the diversity of these microorganisms depends on rice cultivars with some genes characterizedas harboring specific groups of microorganisms related to methane ***,there is still aneed for research to determine the balance between methane production and oxidation,as rice plantspossess the ability to regulate net methane *** agronomical practices,such as fertilizerand water management,have been employed to mitigate methane ***,studiescorrelating agronomic and chemical management of methane with productivity are ***,evidences for breeding low-methane-emitting rice varieties are scattered largely due to the absence ofcoordinated breeding *** has indicated that phenotypic characteristics,such as rootbiomass,shoot architecture,and aerenchyma,are highly correlated with methane *** reviewdiscusses available studies that involve the correlation between plant characteristics and *** emphasizes the necessity and importance of breeding low-methane-emitting rice varieties inaddition to existing agronomic,biological,and chemical *** review also delves into the idealphenotypic and physiological characteristics of low-methane-emitting rice and potential breeding techniques,drawing from studies conducted

关键词： methane emission rice breeding aerenchyma greenhouse gas radial oxygen loss

OsWRKY65 enhances immunity against fungal and bacterial pathogens in rice

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The Crop Journal 2024年第2期12卷 470-481页

作者： Seungmin Son Giha Song Suhyeon Nam Jinjeong Lee Duk-Ju Hwang Eun-Jung Suh Sang Ryeol Park National institute of Agricultural Sciences Rural Development AdministrationJeonju 54874Republic of Korea Department of Agriculture Forestry and BioresourcesPlant Genomics and Breeding InstituteResearch Institute of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Department of Crop Science and Biotechnology Jeonbuk National UniversityJeonju 54896Republic of Korea

Diverse bacterial and fungal pathogens attack plants,causing biotic stress and severe yield losses *** losses are expected to become more serious as climate change improves conditions for many ***,identifying genes conferring broad-spectrum disease resistance and elucidating their underlying mechanisms provides important resources for plant *** transcription factors affect plant growth and stress ***,the functions of many WRKY proteins remain to be ***,we demonstrated the role of rice(Oryza sativa)WRKY groupⅢtranscription factor OsWRKY65 in ***65 localized to the nucleus and acted as transcriptional *** and molecular functional analyses showed that OsWRKY65 increases resistance to the fungal pathogen Fusarium fujikuroi through downregulation of GA signaling and upregulation of JA ***,OsWRKY65 modulated the expression of the key genes that confer susceptibility or resistance to Xanthomonas oryzae *** to enhance immunity against the *** particular,OsWRKY65directly bound to the promoter region of OsSWEET13 and repressed its *** together,our findings demonstrate that the OsWRKY65 enhances resistance to fungal and bacterial pathogens in rice.

关键词： Bacterial blight Bakanae disease Broad-spectrum disease resistance Oriza sativa OsWRKY65 Rice

Phosphorylation of ZmAL14 by ZmSnRK2.2 regulates drought resistance through derepressing ZmROP8 expression

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Journal of Integrative plant Biology 2024年第7期66卷 1334-1350页

作者： Yalin Wang Jinkui Cheng Yazhen Guo Zhen Li Shuhua Yang Yu Wang Zhizhong Gong State Key Laboratory of plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China Center for Crop Functional genomics and Molecular breeding China Agricultural UniversityBeijing 100193China College of Life Sciences Institute of Life Science and Green DevelopmentHebei UniversityBaoding 071002China

Drought stress has negative effects on crop growth and *** of transcription factors that regulate the expression of drought-responsive genes is critical for understanding the transcriptional regulatory networks in response to drought,which facilitates the improvement of crop drought ***,we identified an Alfin-like(AL)family gene ZmAL14 that negatively regulates drought *** of ZmAL14 exhibits susceptibility to drought while mutation of ZmAL14 enhances drought *** abscisic acid(ABA)-activated protein kinase ZmSnRK2.2 interacts and phosphorylates ZmAL14 at T38 *** of ZmSnRK2.2 gene decreases drought resistance of maize.A dehydration-induced Rho-like small guanosine triphosphatase gene ZmROP8 is directly targeted and repressed by *** of ZmAL14 by ZmSnRK2.2 prevents its binding to the ZmROP8 promoter,thereby releasing the repression of ZmROP8 *** of ZmROP8 stimulates peroxidase activity and reduces hydrogen peroxide accumulation after drought ***,our study indicates that ZmAL14 is a negative regulator of drought resistance,which can be phosphorylated by ZmSnRK2.2 through the ABA signaling pathway,thus preventing its suppression on ZmROP8 transcription during drought stress response.

关键词： ZmAL14 drought tolerance transcription factor maize

Improving error-correcting capability in DNA digital storage via soft-decision decoding

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National Science Review 2024年第2期11卷 135-144页

作者：丁璐璐伍世刚候志浩李阿伦许亚苹冯虎潘玮华阮珏 Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural Sciences Guangdong Provincial Key Laboratory of plant Molecular breeding State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesSouth China Agricultural University

Error-correcting codes(ECCs) employed in the state-of-the-art DNA digital storage(DDS) systems suffer from a trade-off between error-correcting capability and the proportion of redundancy. To address this issue, in this study, we introduce soft-decision decoding approach into DDS by proposing a DNA-specific error prediction model and a series of novel strategies. We demonstrate the effectiveness of our approach through a proof-of-concept DDS system based on Reed-Solomon(RS) code, named as Derrick. Derrick shows significant improvement in error-correcting capability without involving additional redundancy in both in vitro and in silico experiments, using various sequencing technologies such as Illumina, Pac Bio and Oxford Nanopore Technology(ONT). Notably, in vitro experiments using ONT sequencing at a depth of 7× reveal that Derrick, compared with the traditional hard-decision decoding strategy, doubles the error-correcting capability of RS code, decreases the proportion of matrices with decoding-failure by 229-fold, and amplifies the potential maximum storage volume by impressive 32 388-fold. Also, Derrick surpasses ‘state-of-the-art' DDS systems by comprehensively considering the information density and the minimum sequencing depth required for complete information recovery. Crucially, the soft-decision decoding strategy and key steps of Derrick are generalizable to other ECCs' decoding algorithms.

关键词： DNA digital storage (DDS) error-correcting code (ECC) soft-decision decoding error-correcting capability storage volume

Dynamics and genetic regulation of macronutrient concentrations during grain development in maize

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Journal of Integrative Agriculture 2024年第3期23卷 781-794页

作者： Pengcheng Li Shuangyi Yin Yunyun Wang Tianze Zhu Xinjie Zhu Minggang Ji Wenye Rui Houmiao Wang Chenwu Xu Zefeng Yang Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of plant Functional genomics Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Agricultural CollegeYangzhou UniversityYangzhou 225009China Jiangsu Co-lnnovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou 225009China

Nitrogen(N), phosphorus(P), and potassium(K) are essential macronutrients that are crucial not only for maize growth and development, but also for crop yield and quality. The genetic basis of macronutrient dynamics and accumulation during grain filling in maize remains largely unknown. In this study, we evaluated grain N, P, and K concentrations in 206 recombinant inbred lines generated from a cross of DH1M and T877 at six time points after pollination. We then calculated conditional phenotypic values at different time intervals to explore the dynamic characteristics of the N, P, and K concentrations. Abundant phenotypic variations were observed in the concentrations and net changes of these nutrients. Unconditional quantitative trait locus(QTL) mapping revealed 41 non-redundant QTLs, including 17, 16, and 14 for the N, P, and K concentrations, respectively. Conditional QTL mapping uncovered 39 non-redundant QTLs related to net changes in the N, P, and K concentrations. By combining QTL, gene expression, co-expression analysis, and comparative genomic data, we identified 44, 36, and 44 candidate genes for the N, P, and K concentrations, respectively, including GRMZM2G371058 encoding a Doftype zinc finger DNA-binding family protein, which was associated with the N concentration, and GRMZM2G113967encoding a CBL-interacting protein kinase, which was related to the K concentration. The results deepen our understanding of the genetic factors controlling N, P, and K accumulation during maize grain development and provide valuable genes for the genetic improvement of nutrient concentrations in maize.

关键词： maize nutrient concentration unconditional QTL mapping conditional QTL mapping dynamic trait

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