检索结果-南通市图书馆

SERK Family receptor-like kinases Function as Co-receptors with PXY for Plant Vascular Development

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2016年第10期9卷 1406-1414页

作者： Heqiao Zhang Xiaoya Lin Zhifu Han Jizong Wang Li-Jia Qu Jijie Chai Ministry of Education Key Laboratory of Protein Science Center for Structural Biology School of Life Sciences Tsinghua-Peking Joint Center for Life SciencesTsinghua University Beijing 100084 China State Key Laboratory of Protein and Plant Gene Research School of Life Sciences Peking-Tsinghua Joint Center for Life Sciences Peking UniversityBeijing 100871 China

In Arabidopsis, the CLAVATA3/EMBRYO SURROUNDING REGION-RELATED （CLE） peptides play important roles in regulating proliferation and differentiation of plant-specific stem cells. Although receptors of CLEs are reported to be leucine-rich repeat receptor kinases, the mechanisms underlying CLE-induced receptor activation remain largely unknown. Here we show that SOMATIC EMBRYOGENESIS receptor kinases （SERKs） serve as co-receptors in CLE41/TDIF-PXY signaling to regulate plant vascular development. TDIF induces interaction of its receptor PXY with SERKs in vitro and in vivo. Furthermore, the serk1-1 serk2-1 bakl-5 mutant plants are less sensitive to TDIF, phenocopying the pxy mutant with a compromised promotion of procambial cell proliferation. Crystal structure of the PXY-TDIF-SERK2 complex reveals that the last amino acid of TDIF conserved among CLEs and other evolutionary-related peptides is important for the interaction between SERK2 and PXY. Taken together, our current study identifies SERKs as signaling components of the TDIF-PXY pathway and suggests a conserved activation mechanism of CLE receptors.

关键词： receptor-like kinase SERK PXY-TDIF vascular development co-receptor

Diverse Roles of ERECTA Family Genes in Plant Development

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2013年第12期55卷 1238-1250页

作者： Elena D.Shpak Department of Biochemistry Cellular and Molecular BiologyUniversity of Tennessee

Multiple receptor-like kinases （RLKs） enable intercellular communication that coordinates growth and development of plant tissues. ERECTA family receptors （ERfs） are an ancient family of leucine-rich repeat RLKs that in Arabidopsis consists of three genes： ERECTA, ERL1, and ERL2. ERfs sense secreted cysteine-rich peptides from the EPF/EPFL family and transmit the signal through a MAP kinase cascade. This review discusses the functions of ERfs in stomata development, in regulation of longitudinal growth of aboveground organs, during reproductive development, and in the shoot apical meristem. In addition the role of ERECTA in plant responses to biotic and abiotic factors is examined.

关键词： Arabidopsis ERECTA leaf primordium initiation receptor-like kinase stomata vasculature.

Arabidopsis U-box E3 ubiquitin ligase PUB11 negatively regulates drought tolerance by degrading the receptor-like protein kinases LRR1 and KIN7

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2021年第3期63卷 494-509页

作者： Xuexue Chen Tingting Wang Amin Ur Rehman Yu Wang Junsheng Qi Zhen Li Chunpeng Song Baoshan Wang Shuhua Yang Zhizhong Gong State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China Collaborative Innovation Center of Crop Stress Biology Institute of Plant Stress BiologyHenan UniversityKaifeng 475001China Key Lab of Plant Stress Research College of Life ScienceShandong Normal UniversityJi'nan 250000China School of Life Sciences Institute of Life Science and Green DevelopmentHebei UniversityBaoding 100193China

Both plant receptor-like protein kinases(RLKs)and ubiquitin-mediated proteolysis play crucial roles in plant responses to drought stress.However,the mechanism by which E3 ubiquitin ligases modulate RLKs is poorly understood.In this study,we showed that Arabidopsis PLANT U-BOX PROTEIN 11(PUB11),an E3 ubiquitin ligase,negatively regulates abscisic acid(ABA)-mediated drought responses.PUB11 interacts with and ubiquitinates two receptor-like protein kinases,LEUCINE RICH REPEAT PROTEIN 1(LRR1)and kinase 7(KIN7),and mediates their degradation during plant responses to drought stress in vitro and in vivo.pub11 mutants were more tolerant,whereas Irr1 and kin7 mutants were more sensitive,to drought stress than the wild type.Genetic analyses show that the pub11 Irr1 kin7 triple mutant exhibited similar drought sensitivity as the Irr1 kin7 double mutant,placing PUB11 upstream of the two RLKs.Abscisic acid and drought treatment promoted the accumulation of PUB11,which likely accelerates LRR1 and KIN7 degradation.Together,our results reveal that PUB11 negatively regulates plant responses to drought stress by destabilizing the LRR1 and KIN7 RLKs.

关键词： abscisic acid drought response E3 ligase receptor-like kinase ubiquitination

AtPEPTIDE receptor_2 mediates the AtPEPTIDE1‐induced cytosolic Ca^(2+) trise, which is required for the suppression of Glutamine Dumper gene expression in Arabidopsis roots

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2014年第7期56卷 684-694页

作者： Chunli Ma Jie Guo Yan Kang Kohei Doman Anthony C.Bryan Frans E.Tax Yube Yamaguchi Zhi Qi College of Life Sciences Inner Mongolia University Crop Physiology Laboratory Graduate School of Agriculture Hokkaido University Department of Molecular and Cellular Biology and School of Plant Sciences University of Arizona Graduate School of Life and Environmental Sciences Osaka Prefecture University

AtPEPTIDE receptor2 （AtPEPR2） is a member of leucine-rich repeat receptor-like kinase family and binds to a group of AtPROPEP gene-encoded endogenous peptides, AtPeps. Previously, we found that AtPEPR2 plays a moderate role in the AtPep1-mediated innate immunity responses in Arabidopsis leaf. In this study, we found that AtPEPR2 promoter has strong activity in the vascular tissues of the roots and the atpepr2 mutants showed a moderate but significantly shorter root phenotype. AtPEPR2 partial y mediated AtPep1-induced root elongation inhibition. AtPep1-triggered cytosolic Ca2t transient rise in roots showed partial dependence on AtPEPR2 and ful y on extracellular Ca2t （[Ca2t]ext）. Transcriptional profiling analysis found that expression of 75% of AtPep1-modulated genes in roots was ful y dependent on AtPEPR2, of which two dramatical y induced genes showed partial dependence on the [Ca2t]ext. Arabidopsis genome contains seven Glutamine Dumpers genes （AtGDUs）, encoding amino acid exporters. Three of them （AtGDU2, 3, 5） were among the top 10 genes that were＆amp;nbsp;downregulated by AtPep1 through AtPEPR2 ful y dependent pathway. Treatment with AtPep1 strongly suppressed pro-moter activity of AtGDU3 in roots, which was relieved by chelating [Ca2t]ext. Arabidopsis overexpressing AtGDU3 showed a shorter root phenotype and decreased sensitivity to the AtPep1-mediated inhibition of root elongation. Taken together, this study demonstrated a significant role of AtPEPR2 in the AtPep1-mediated signaling in the roots.

关键词： Arabidopsis AtPeptide cytosolic Ca2＋ receptor-like kinase root

A Novel Single-Nucleotide Mutation in a CLAVATA3 Gene Homolog Controls a Multilocular Silique Trait in Brassica rapa L.

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2014年第12期7卷 1788-1792页

作者： Chuchuan Fan, Yudi Wu, Qingyong Yang, Yang Yang, Qingwei Meng, Keqiao Zhang, Jinguo Li, Jinfang Wang Yongming Zhou National Key Laboratory of Crop Genetic Improvement and Key Laboratory of Rapeseed Genetics and Breeding of Agriculture Ministry of China Huazhong Agricultural University Wuhan 430070 China

Dear Editor, Brassica rapa is an important crop and a model plant for studying Brassica genome evolution and gene function. The silique of B. rapa derived from the gynoecium nor- mally consists of two carpels that are separated by a false septum, and thus has two Iocules （bilocular）. Multilocular （more than two carpels） lines of B. rapa have been discov- ered in nature and are considered advantageous because the multilocular type could potentially increase the seed yield by producing more seeds per silique than the biloc- ular type. However, the molecular basis of the important seed vield-related trait is ooorlv understood.

关键词： receptor-like kinase ARABIDOPSIS SHOOT TRANSMITS ENCODES SIGNAL LOOP

Genome-Wide Analysis of HAESA/HAESA-like kinase Family in Rice

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2020年第8期11卷 1254-1269页

作者： Chengliang Wang Dong Li Pei Wang Defu Chen Xiwen Chen Department of Biochemistry and Molecular Biology College of Life Sciences Nankai University Tianjin China Department of Genetics and Cell Biology College of Life Sciences Nankai University Tianjin China

In leucine-rich repeat (LRR) receptor-like kinase XI subfamily, Arabidopsis HAESA (AtHAE) and two closely related HAESA-like (AtHSL1 and AtHSL2) constitute a small branch. Several reports have described the function a... 详细信息

In leucine-rich repeat (LRR) receptor-like kinase XI subfamily, Arabidopsis HAESA (AtHAE) and two closely related HAESA-LIKE (AtHSL1 and AtHSL2) constitute a small branch. Several reports have described the function and the involved signaling pathway that AtHAE and AtHSLs are involved in. However, the family members and functions of HAE and HSL in rice have not been reported. Here, we performed a genome-wide analysis of the HAE/HSL kinase family in rice. A total of 17 OsHSLs were identified in the genome. Of these, only Os11g11890 was annotated as HSL2;all the other members were annotated as HSL1. Phylogenetic analysis revealed that OsHSLs diverged into three groups, with three Arabidopsis members constituting a subgroup of group I. Domain analysis revealed that all the homologues had 9-19 LRR repeats and a typical kinase domain at the C-terminus, except that four members lost or evolved their kinase domains. Expression analysis revealed that OsHSLs were co-expressed with genes involved in biotic and abiotic stresses. Microarray data revealed that most OsHSLs were highly expressed in the vegetative tissues and only two members were highly expressed in the reproductive tissues. Most OsHSLs changed their expression profiles when subjected to drought, and salt stress treatments. Our results provide an overview of OsHSL gene family in rice, and suggest that OsHSLs possibly function under biotic and abiotic stresses, thus would help for elucidating the function of OsHSLs gene family in vivo.

关键词： HAESA and HAESA-like Gene Family Rice (Oryza sativa L.) Ara-bidopsis thaliana receptor-like kinase

Genetic identification of RGF1 receptors, RGF1 INSENSITIVE 1 to 5

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genetic identification of RGF1 receptors, RGF1 INSENSITIVE 1...

Global Expression Pattern Analysis of Rice RLK Coding Genes in Developing Seeds and in Response to Stress Conditions

2016年全国植物生物学大会

作者： Yang Ou Xiaoting Lu Quaner Zi Qingqing Xun Jingjie Zhang Yujun Wu Hongyong Shi Zhuoyun Wei Baolin Zhao Xiaoyue Zhang Kai He Xiaoping Gou Chuanyou Li Jia Li Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations School of Life SciencesLanzhou University State Key Laboratory of Plant Genomics National Centre for Plant Gene ResearchInstitute of Genetics and Developmental BiologyChinese Academy of Sciences

RGF1,a secreted peptide hormone,plays a key role in root meristem development in Arabidopsis. Previous studies indicated that a functional RGF1 needs to be sulfated at a tyrosine residue by a tyrosylprotein sulfotransferase(TPST) and that RGF1 regulates root meristem activity mainly via two downstream transcription factors,PLETHORA 1(PLT1) and PLT2. How extracellular RGF1 is perce ived by a plant cell,however,is not understood. Using genetic approaches,we discovered a clade of leucine-rich repeat receptor-like kinases(LRR-RLKs),designated as RGF1 INSENSITIVE 1(RGI1) to RGI5,serving as receptors of RGF1. Two independent rgi1 rgi2 rgi3 rgi4 rgi5 quintuple mutants display a consistent short primary root phenotype with a small size of meristem. An rgi1 rgi2 rgi3 rgi4 quadruple mutant shows a significantly reduced sensitivity and the quintuple mutant is completely insensitive to RGF1. The expression levels of PLT1 and PLT2 are almost undetectable in the quintuple mutant. Ectopic expression of PLT2 driven by an RGI2 promoter in the quintuple mutant greatly rescued its root meristem defects. One of the RGIs,RGI1,was subsequently analyzed biochemically in detail. In vitro dot-blotting and pull-down analysis indicated that RGI1 can physically interact with RGF1. Exogenous application of RGF1 can quickly and simultaneously induce the phosphorylation and ubiquitination of RGI1,indicating that RGI1 can perceive and transduce the RGF1 peptide signal. Yet,the activated RGI1 is likely turned over rapidly. These results demonstrated that RGIs,acting as the receptors of RGF1,play essential roles in RGF1-PLT-mediated root meristem development in Arabidopsis thaliana.

关键词： receptor-like kinase RGF1 RGF1 INSENSITIVE PLETHORA Arabidopsis

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Global Expression Pattern Analysis of Rice RLK Coding Genes ...

Global Expression Pattern Analysis of Rice RLK Coding Genes in Developing Seeds and in Response to Stress Conditions

2010全国植物生物学研讨会

作者： Linlin Gao Hong-Wei Xue National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and EcologyShanghai Institutes for Biological Sciences Chinese Academy of Sciences

The receptor-like kinase(RLK)plays critical roles in plant growth,development,and stresses responses,through sensing the extracellular signals and activating the downstream signal transduction by phosphorylating the t... 详细信息

关键词： receptor-like kinase rice seed development stress

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Global Expression Pattern Analysis of Rice RLK Coding Genes ...