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Melatonin activates the OsbZIP79–OsABI5 module that orchestrates nitrogen and ROS homeostasis to alleviate nitrogen-limitation stress in rice

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Plant Communications 2023年第6期4卷 113-133页

作者： Meng Jiang Yue Song Ruifang Yang Chenfan Zheng Yunchao Zheng Huali Zhang Shan Li Yuanyuan Tan Jianzhong Huang Qingyao Shu Ruiqing Li Hainan institute Zhejiang UniversityYazhou Bay Sci-Tech CitySanyaChina National Key Laboratory of Rice breeding and Biology and Zhejiang Provincial Key Laboratory of crop Germplasm The Advanced Seed InstituteZhejiang UniversityHangzhouChina College of Agronomy Anhui Agricultural UniversityHefeiChina crop breeding and cultivation Research institute Shanghai Academy of Agricultural SciencesShanghaiChina School of Life Sciences Westlake UniversityHangzhouChina State Key Laboratory of Rice breeding and Biology and Chinese National Center for Rice Improvement China National Rice Research InstituteHangzhouChina

Melatonin(Mel)has previously been reported to effectively alleviate nitrogen-limitation(N-L)stress and thus increase nitrogen-use efficiency(NUE)in several plants,but the underlying mechanism remains ***,we revealed that OsbZIP79(BASIC LEUCINE ZIPPER 79)is transcriptionally activated under N-L conditions,and its expression is further enhanced by exogenous *** the combined use of omics,genetics,and biological techniques,we revealed that the OsbZIP79–OsABI5(ABSCISIC ACID INSENSITIVE 5)module stimulated regulation of reactive oxygen species(ROS)homeostasis and the uptake and metabolismof nitrogen under conditions of indoor nitrogen limitation(1/16 normal level).OsbZIP79 activated the transcription of OsABI5,and OsABI5 then bound to the promoters of target genes,including genes involved in ROS homeostasis and nitrogen metabolism,activating their *** module was also indispensable for upregulation of several other genes involved in abscisic acid catabolism,nitrogen uptake,and assimilation under N-L and Mel treatment,although these genes were not directly transactivated by *** experiments demonstrated that Mel significantly improved rice growth under low nitrogen(L-N,half the normal level)by the same mechanism revealed in the nitrogen-limitation *** application produced a 28.6%yield increase under L-N and thus similar increases in ***,two OsbZIP79-overexpression lines grown in L-N field plots had significantly higher NUE(+13.7%and+21.2%)than their wild ***,our data show that an OsbZIP79–OsABI5 module regulates the rice response to N insufficiency(N limitation or low N),which is important for increasing NUE in rice production.

关键词： melatonin peroxidase nitrogen starvation allantoinase ROS signaling

One bird,multiple stones:The race to find a gene of dominant negative effect in wheat

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The crop Journal 2024年第4期12卷 951-952页

作者： Long Mao State Key Laboratory of crop Gene Resources and breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

In the current issue of The crop Journal,Chen et al.[1]reports map-based cloning of a wheat gene that showed temperaturedependent pleiotropic effects on multiple traits including plant height,leaf shape,spike and grain morphology,and accordingly was named WPA1 for Wheat Plant Architecture *** mutant was first observed among EMS-treated plants and repeatedly appeared in multiple occasions.

关键词： Wheat bird repeatedly

Functions and Application of the AP2/ERF Transcription Factor Family in crop Improvement

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Journal of Integrative Plant Biology 2011年第7期53卷 570-585页

作者： Zhao-Shi Xu Ming Chen Lian-Cheng Li You-Zhi Ma National Key Facility of crop Gene Resources and Genetic Improvement (NFCRI) Key Laboratory of Crop Genetics and Breeding Ministry of Agriculture Institute of Crop Science Chinese Academy of Agriculture Sciences (CAAS) Beijing 100081 China

Plants have acquired sophisticated stress response systems to adapt to changing environments. It is important to understand plants＇ stress response mechanisms in the effort to improve crop productivity under stressful conditions. The AP2/ERF transcription factors are known to regulate diverse processes of plant development and stress responses. In this study, the molecular characteristics and biological functions of AP2/ERFs in a variety of plant species were analyzed. AP2/ERFs, especially those in DREB and ERF subfamilies, are ideal candidates for crop improvement because their overexpression enhances tolerances to drought, salt, freezing, as well as resistances to multiple diseases in the transgenic plants. The comprehensive analysis of physiological functions is useful in elucidating the biological roles of AP2/ERF family genes in gene interaction, pathway regulation, and defense response under stress environments, which should provide new opportunities for the crop tolerance engineering.

关键词： AP2/ERF gene regulation signal pathway stress tolerance transgenic plant

Nitrogen supply affects ion homeostasis by modifying root Casparian strip formation through the miR528-LAC3 module in maize

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Plant Communications 2023年第4期4卷 88-98页

作者： Yu Guo Yafei Wang Huan Chen Qingguo Du Zhonghua Wang Xiaoping Gong Qing Sun Wen-Xue Li National Engineering Laboratory for crop Molecular breeding Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijing 100081China Qingdao Agricultural University Qingdao 266109China

Although nitrogen(N)is known to affect mineral element homeostasis in plants,the molecular mechanisms of interactions between N and other nutrients remain largely *** here that N supply affects ion homeostasis *** hemisulfate staining and a propidiumiodide penetration assay showed that N luxury significantly delayed Casparian strip(CS)formation in maize *** further demonstrated that N-mediated CS formation in maize was independent of RBOHF-activated H2O2 production.N luxury induced the expression of ZmmiR528 inwhole roots and root *** and loss-of-function ofZmmiR528 promoted CS formation under both N-luxury and N-deficient *** ZmMIR528a and ZmMIR528b contribute to early CS formation under different N ***-seq and real-time RT-PCR analysis demonstrated that ZmLAC3,but not ZmLAC5,responded to N *** with results obtained with ZmmiR528 TM transgenic maize and mir528a/b loss-of-function mutants,transgenic maize overexpressing ZmLAC3 displayed early CS formation under different N *** field conditions,K,Ca,Mn,Cu,Mg,and Zn concentrations were greater in the ear leaf of ZmLAC3-overexpressing transgenicmaize than in the wild *** results indicate that ZmmiR528 affects CS formation in maize by regulating the expression of ZmLAC3,and modification of CS formation has the potential to improve maize quality.

关键词： nitrogen ion homeostasis miR528 Casparian strip maize

Wheat breeding in northern China: Achievements and technical advances

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The crop Journal 2019年第6期7卷 718-729页

作者： Hongjie Li Yang Zhou Wenli Xin Yiqin Wei Junling Zhang Lilei Guo The National Engineering Laboratory of crop Molecular breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China institute of crop breeding Heilongjiang Academy of Agricultural SciencesHarbin 150086HeilongjiangChina institute of crop Research Ningxia Academy of Agricultural and Forestry SciencesYinchuan 750100NingxiaChina institute of Foxtail Millet Shanxi Academy of Agricultural SciencesChangzhi 046000ShanxiChina National Agricultural Technology Extension and Service Center Beijing 100125China

Common wheat is the major cereal crop that underpins the food safety of China. Both winter wheat and spring wheat are grown on ~24 million ha. This review aims to summarize the current status of wheat production and breeding progress in the northern wheat production areas of the country, and to review recently advanced technologies being applied in wheat breeding, including the use of dwarf-male-sterile(DMS) wheat, speed breeding and specialized wheat breeding SNP chips. Crossing is the initial step in most breeding programs. DMS wheat is a convenient tool for large scale production of hybrid seed. Speed breeding or accelerated generation turnover attempts to reduce the time taken in cultivar development. Several different SNP chips are high-throughput, genome-wide genotyping platforms for breeding and research.

关键词： Common wheat Dwarf male sterile wheat Speed breeding SNP chips Triticum aestivum

Genetic and molecular mechanisms of reproductive isolation in the utilization of heterosis for breeding hybrid rice

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Journal of Genetics and Genomics 2024年第6期51卷 583-593页

作者： Chaolong Wang Xiaowen Yu Jian Wang Zhigang Zhao Jianmin Wan State Key Laboratory for crop Genetics&Germplasm Enhancement and Utlization Nanjing Agricultural UniversityZhongshan Biological Breeding LaboratoryNanjingJiangsu210095China State Key Laboratory of crop Gene Resources and breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Heterosis,also known as hybrid vigor,is commonly observed in rice *** hybridization of rice species or subspecies exhibits robust hybrid vigor,however,the direct harnessing of this vigor is hindered by reproductive ***,we review recent advances in the understanding of the molecular mechanisms governing reproductive isolation in inter-subspecific and inter-specific *** review encompasses the genetic model of reproductive isolation within and among Oryza sativa species,emphasizing the essential role of mitochondria in this ***,we delve into the molecular intricacies governing the interaction between mitochondria and autophagosomes,elucidating their significant contribution to reproductive ***,our exploration extends to comprehending the evolutionary dynamics of reproductive isolation and speciation in *** on these advances,we offer a forward-looking perspective on how to overcome the challenges of reproductive isolation and facilitate the utilization of heterosis in future hybrid rice breeding endeavors.

关键词： Hybrid vigor Reproductive isolation Hybrid ricebreeding

Plant Variety Protection and DUS Testing Technique

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Agricultural Sciences in China 2002年第12期1卷 1400-1403页

作者： LI Xiao-hui, LI Xin-hai, ZHANG Shi-huang, LI Ming-shun and LI Wen-hua(institute of crop breeding and cultivation, Chinese Academy of Agricultural Sciences /Key Laboratory of cropGenetics and breeding , Ministry of Agriculture/AMBIONET-China Laboratory , Beijing 100081 , P. R. China College of Agronomy , Northeast Agricultural University, Harbin 150030, P.R.China) institute of crop breeding and cultivation Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Genetics and Breeding Ministry of Agriculture/AMBIONET-China Laboratory Beijing 100081 P.R.China College of Agronomy Northeast Agricultural Uni institute of crop breeding and cultivation Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Genetics and Breeding Ministry of Agriculture/AMBIONET-China Laboratory Beijing 100081 P.R.China College of Agronomy Northeast Agricultural University Harbin 150030 P.R.China

DUS testing technique used for plant variety protection was reviewed in the paper, and some suggestions were made on how to establish the appropriate technology system in China. Meanwhile, the potential exploitation o... 详细信息

关键词： Plant variety protection DUS testing DNA fingerprinting

OstMAPKKK5, a truncated mitogen-activated protein kinase kinase kinase 5, positively regulates plant height and yield in rice

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The crop Journal 2019年第5期7卷 707-714页

作者： Yahui Liu Yu Zhu Xuding Xu Fan Sun Jingshui Yang Liming Cao Xiaojin Luo State Key Laboratory of Genetic Engineering Institute of GeneticsSchool of Life SciencesFudan UniversityShanghai 200438China institute of crop breeding and cultivation Shanghai Academy of Agricultural SciencesShanghai 201403China Engineering Research Center of Gene Technology Ministry of EducationFudan UniversityShanghai 200438China

Rice(Oryza sativa L.)is a major food crop *** height and yield are important agronomic traits of *** genes regulating plant height and/or yield have been ***,the molecular mechanisms coordinating plant height and yield are not fully ***,we report a novel gene,OstMAPKKK5 that encodes a truncated variant of a mitogen-activated protein kinase kinase kinase 5(OsMAPKKK5)lacking an intact kinase *** plants overexpressing OstMAPKKK5 in indica cultivar 9311 showed increased plant height,grain length,grain width,1000-grain weight,grain number per main panicle,and ***-time quantitative PCR showed that OstMAPKKK5 was widely expressed in various tissues and developmental *** increased plant height and yield were attributed to enlarged cell *** of OstMAPKKK5 led to higher contents of various forms of endogenous gibberellin(GA),especially the most common active forms,GA1,GA3,*** concluded that OstMAPKKK5 positively regulates plant height and yield in rice by affecting cell size,and that its underlying mechanism is based on increased endogenous GA content.

关键词： OstMAPKKK5 Plant height and yield Cell size Gibberellin Oryza sativa

breeding OF WHEAT TRANSLOCATION LINES AND GIEMSA-C BANDING APPRAISAL

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Chinese Science Bulletin 1990年第20期35卷 1757-1758页

作者：张月学孙光祖陈义纯 institute of crop breeding Heilongjiang Academy of Agricultural Sciences Harbin 150086 PRC

The distant crossing material treated with ionizing radiation can produce good mutation plant lines in which chromosome structures often change. Rye genus has great advantages for improving genetic germplasm hexaploid... 详细信息

关键词： chromosome cultivated wheat germplasm distant crossing breeding mutant alien drought