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Two Arabidopsis Receptor-like Cytoplasmic Kinases SZE1 and SZE2 Associate with the ZAR1-ZED1 Complex and Are Required for Effector-Triggered Immunity

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Molecular plant 2019年第7期12卷 967-983页

作者： Cheng Liu Dayong Cui Jingbo Zhao Na Liu Bo Wang Jing Liu Enjun Xu Zhubing Hu Dongtao Ren Dingzhong Tang Yuxin Hu Key Laboratory of plant Molecular Physiology CAS Center for Excellence in Molecular Plant Sciences Institute of Botany Chinese Academy of Sciences Beijing 100093 China University of Chinese Academy of Sciences Beijing 100049 China School of Life Sciences Qilu Normal University Jinan 250200 China Key Laboratory of Ministry of Education for Genetics Breeding and Multiple Utilization of Crops Plant Immunity Center Fujian Agriculture and Forestry University Fuzhou 350002 China State Key Laboratory of plant Physiology and Biochemistry College of Biological Sciences China Agricultural University Beijing 100193 China Institute of plant Stress biology State Key Laboratory of Cotton Biology Department of Biology Henan University Kaifeng 475001 China National center for plant Gene Research Beijing 100093 China

plants utilize intracellular nucleotide-binding leucine-rich repeat domain-containing receptors (NLRs) to recognize pathogen effectors and induce a robust defense response named effector-triggered immunity (ETI). The Arabidopsis NLR protein HOPZ-ACTIVATED RESISTANCE 1 (ZAR1) forms a precomplex with HOPZ-ETI-DEFICIENT 1 (ZED1),a receptor-like cytoplasmic kinase (RLCK) XII-2 subfamily member, to recognize the Pseudomonas syringae effector HopZ1 a. We previously described a dominant mutant of Arabi-dopsis ZED1, zed1-D, which displays temperature-sensitive autoimmunity in a ZAR1-dependent manner. Here, we report that the RLCKs SUPPRESSOR OF ZED1-D1 (SZE1) and SZE2 associate with the ZAR1-ZED1 complex and are required for the ZED7-D-activated autoimmune response and HopZ1a-triggered immunity. We show that SZE1 but not SZE2 has autophosphorylation activity, and that the N-terminal myristoylation of both SZE1 and SZE2 is critical for their plasma membrane localization and ZED1-D-activated autoimmunity. Furthermore, we demonstrate that SZE1 and SZE2 both interact with ZAR1 to form ja functional complex and are required for resistance against P. syringae pv. tomato DC3000 ex-pressing HopZIa. We also provide evidence that SZE1 and SZE2 interact with HopZ1a and function together with ZED1 to change the intramolecular interactions of ZAR1, leading to its activation. Taken together, our re-sults reveal SZE1 and SZE2 as critical signaling components of HopZ1a-triggered immunity.

关键词： Arabidopsis RLCK SZE-ZAR1-ZED1 complex HopZIa immune response

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Enrichment process of lanthanum as a nonessential trace element in leaf cells of lettuce(Lactuca sativa L.)

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Journal of Rare Earths 2022年第12期40卷 1969-1976,I0006页

作者： Mengzhu Cheng Xin Wang Yue Ben Shuya Zhang Lihong Wang Qing Zhou Xiaohua Huang National and Local Joint Engineering Research center of Biomedical Functional Materials Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023China center for plant Cell biology Institute of Integrative Genome Biologyand Department of Botany and Plant SciencesUniversity of CaliforniaRiversideCA92521USA State Key Laboratory of Food Science and Technology Jiangnan UniversityWuxi 214122China

Rare earth elements(REEs)as nonessential trace elements are enriched in living organisms and threaten their *** early detect and reduce REE enrichment in living organisms,scientists are focused on clarifying the enrichment process of REEs in living organisms and its ***,the enrichment process of REEs in edible plant cells has remained ***,by using interdisciplinary methods and techniques,the enrichment process of lanthanum(La(Ⅲ))in the leaf cells of lettuce(Lactuca sativa L.)was investigated.(1)When La(Ⅲ)exposure dose is 0.5-5μmol/L,La(Ⅲ)is enriched outside the plasma membrane(PM).In this zone,La(Ⅲ)is bound to vitronectin-like protein(VN)to form La-VN complexes;(2)When La(Ⅲ)exposure dose is 5-20μmol/L,besides the zone outside the PM,La(Ⅲ)is also enriched on the PM and bound to arabinogalactan proteins(AGPs)to form La-AGPs complexes;(3)When La(Ⅲ)exposure dose is 20-140μmol/L,besides the zone outside and on the PM,La(Ⅲ)is enriched inside the PM;(4)When La(Ⅲ)exposure dose is 60-140μmol/L,malondialdehyde content(an important indicator of invisible damage)significantly ***,as La(Ⅲ)exposure dose increases,La(Ⅲ)gradually migrates from outside the PM to the PM and inside the PM,enriching in these zones in *** enriched La(Ⅲ)will cause invisible damage to lettuce leaf cells and even enter human bodies along food *** results provide references for investigating the enrichment process of REEs in plants and its environmental risks,and finding strategies to early detect and reduce REE enrichment in plants.

关键词： Nonessential trace element Lanthanum exposure Lettuce leaf cell Enrichment process Vitronectin-like protein Arabinogalactan proteins

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Mowing and fertilizer effects on seedling establishment in a successional old field

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Journal of plant Ecology 2011年第3期4卷 157-168页

作者： David J.Gibson Jared Urban Sara G.Baer department of plant biology and center for Ecology Southern Illinois University CarbondaleCarbondaleIL 62901USA

Aims We used a 10-year field experiment that consisted of mowing and fertilizer treatments to evaluate the role of niche limitation in seedling establishment of species from different functional groups and of varying local abundance in an old field undergoing *** Seedlings of nine different species were planted into a successional field subjected to mowing and fertilizer treatments for 10 years that resulted in different plant communities and resource *** representative of the factorial combination of three functional groups(C4 grasses,C3 grasses and legumes)and three abundance categories(abundant,present,or absent in the old field)were planted in four treatments resulting from the factorial combination of annual spring mowing(mowed and unmowed)and fertilizer application(annually fertilized and unfertilized).Survivorship,relative growth rate(RGR)and biomass were measured to determine the role of niche limitation on recruitment and *** Findings Mowing increased the establishment success of *** had little influence on seedling performance and survivorship.C3 grasses had the highest survivorship,while C4 grasses and legumes had equivalent RGRs,but higher than C3 *** contrast,survivorship of legumes was unrelated to mowing or fertilizer,suggesting that establishment of this functional group was dependent on other,unmeasured conditions or *** already present,but at low abundance,performed better than locally abundant or absent *** limitation may restrict the arrival of a ***,recruitment and establishment was subject to niche limitation,which varied among species,functional groups and whether a species is already resident at the site and its ***,species interactions restrict establishment during old-field succession,supporting the niche limitation hypothesis.

关键词： disturbance niche limitation plant functional group seedlings succession

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Unlikely heroes on the long and winding road to potatoinbreeding

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aBIOTECH 2023年第3期4卷 267-271页

作者： Luca Comai department of plant biology and Genome center University of California DavisDavisCA 95616USA

Conversion of potato from a tetraploid, heterozygous, vegetatively propagated crop to a diploid F1hybrid, propagated via botanical seed, would constitute a considerable advance for global agriculture,but faces multiple challenges. One such challenge is the difficulty in inbreeding potato, which involvespurging deleterious alleles from its genome. This commentary discusses possible reasons for thisdifficulty and highlights a recent sequence-based effort to classify SNP variation, in potato germplasm,according to its deleterious potential. Tools and strategies connected to this database may facilitatedevelopment of F1 hybrids.

关键词： Hybrid seed Deleterious alleles Inbreeding Genetic load Clonal propagation

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Dual Functions of Phospholipase Dα1 in plant Response to Drought

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Molecular plant 2008年第2期1卷 262-269页

作者： Yueyun Hong Suqin Zheng Xuemin Wang department of biology University of Missouri St Louis MO 63121 USADonald Danforth Plant Science Center St Louis MO 63132 USA

Phospholipase Dα1 （PLDα1） has been shown to mediate the abscisic acid regulation of stomatal movements. Arabidopsis plants deficient in PLDα1 increased, whereas PLDα1-overexpressing tobacco decreased, transpirational water loss. In the early stage of drought, the decrease in water loss was associated with a rapid stomatal closure caused by a high level of PLD in PLDα1-overexpressing plants. However, in the late stage of drought, the overexpressing plants displayed more susceptibility to drought than control plants. PLDα1 activity in the overexpressing plants was much higher than that of control plants in which drought also induced an increase in PLDα1 activity. The high level of PLDα1 activity was correlated to membrane degradation in late stages of drought, as demonstrated by ionic leakage and lipid peroxidation. These findings indicate that a high level of PLDα1 expression has different effects on plant response to water deficits. It promotes stomatal closure at earlier stages, but disrupts membranes in prolonged drought stress. These findings are discussed in relation to the understanding of PLD functions and potential applications.

关键词： drought phospholipase phosphatidic acid lipid oxidation lipid signaling.

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Big Roles of Small Kinases:The Complex Functions of Receptor-Like Cytoplasmic Kinases in plant Immunity and Development

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Journal of Integrative plant biology 2013年第12期55卷 1188-1197页

作者： Wenwei Lin Xiyu Ma Libo Shan Ping He department of plant pathology and Microbiology and Institute for Plant Genomics and BiotechnologyTexas A&M UniversityCollege Station department of Biochemistry and Biophysics and Institute for Plant Genomics and BiotechnologyTexas A&M UniversityCollege Station

plants have evolved a large number of receptor-like cytoplasmic kinases （RLCKs） that often functionally and physically associate with receptor-like kinases （RLKs） to modulate plant growth, development and immune responses. Without any apparent extracellular domain, RLCKs relay intracellular signaling often via RLK complex-mediated transphosphorylation events. Recent advances have suggested essential roles of diverse RLCKs in concert with RLKs in regulating various cellular and physiological responses. We summarize here the complex roles of RLCKs in mediating plant immune responses and growth regulation, and discuss specific and overlapping functions of RLCKs in transducing diverse signaling pathways.

关键词： Phosphorylation plant development plant immunity receptor-like cytoplasmic kinases.

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Achieving broad-spectrum resistance against rice bacterial blight through targeted promoter editing and pathogen population monitoring

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aBIOTECH 2020年第2期1卷 119-122页

作者： Jiyang Wang Yuese Ning Irene N.Gentzel Guo-Liang Wang State Key Laboratory for biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China department of plant pathology The Ohio State UniversityColumbusOH 43210USA

plant diseases severely reduce crop yields and threaten global food ***-spectrum resistance(BSR)is a desirable trait because it confers resistance against more than one pathogen species or the majority of races/strains of the same *** control plant diseases,breeders have selected BSR to reduce disease occurrence and prolong the life-span of newly released cultivars in the last several decades(Mundt,Phytopathology 108(7):792–802,2018).Although effective,breeding of BSR cultivars in crop plants is still time-consuming and technically ***,new gene-editing technologies such as CRISPR/Cas9 have dramatically accelerated the process of plant breeding and provided an approach for rapidly creating new varieties with BSR and other beneficial traits(Borrelli et al.,Front plant Sci 9:1245,2018).In addition,close surveillance of pathogen populations in the field can provide useful information for the deployment of appropriate resistance genes in the target *** this mini-review,we focus on the significance and application of the exciting results from two recent companion papers published in Nature Biotechnology that provide new strategies to develop crop plants with BSR against pathogens through targeted promoter editing of susceptibility genes in plants as well as pathogen population monitoring.

关键词： CRISPR/Cas9 Broad-spectrum resistance Rice bacterial blight Stacking editing Pathogen population monitoring

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The Ti-TAN plasmid toolbox for TurboID-based proximity labeling assays in Nicotiana benthamiana

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Journal of Integrative plant biology 2024年第2期66卷 166-168页

作者： Huang Tan Yu Zhou Erik Dinius Rosa Lozano-Durán department of plant Biochemistry Center for Plant MolecularBiology(ZMBP)Eberhard Karls UniversityTubingenD‐72076Germany

Protein-protein interactions and the formation of protein complexes play a central role in the regulation of virtually all aspects of *** identification and characterization of interactions between proteins is the bas... 详细信息

关键词： proximity complexes enable

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Identification of AFLP Markers Linked to Lr19 Resistance to Wheat Leaf Rust

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Agricultural Sciences in China 2007年第3期6卷 311-315页

作者： LI Xing YANG Wen-xiang LI Ya-ning LIU Da-qun YAN Hong-fei MENG Qing-fang ZHANG Ting department of plant pathology/Biological Control center of plant Diseases and plant Pests of Hebei Province Agricultural University ofHebei Baoding 071001 P.R.China

AFLP analyses were carried out on Thatcher, 23 near-isogenic lines and F2 generation of TcLr19 × Thatcher, to develop molecular markers for gene Lr19 resistance to wheat leaf rust. Seven markers linked to Lr19 resistance trait were obtained, which were P-AGT/M-GAG289 bp （3.3 cM）, P-ACA/M-GGT102 bp （4.1 cM）, P-ACA/M-GGT106 bp （4.1 cM）, P-AAC/M-CAG123 bp （4.9 cM）, P-AAC/M-GGT203bp （5.0 cM）, P-ACA/M-GGT290bp （5.7 cM）, and P-ATC/M-GAG293bp （9.6 cM）. All of these specific fragments were isolated from the polyacrylamide gels, reamplified, cloned, and sequenced. The research may facilitate genetic mapping, physical mapping, and the eventual cloning of Lr19.

关键词： wheat Lr19 molecular marker AFLP

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SINA E3 Ubiquitin Ligases:Versatile Moderators of plant Growth and Stress Response

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Molecular plant 2019年第5期12卷 610-612页

作者： Chongyang Zhang Zeyun Hao Yuese Ning Guo-Liang Wang State Key Laboratory for biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China department of plant pathology the Ohio State UniversityColumbusOH 43210USA

Protein degradation mediated by the ubiquitin-proteasome system(UPS)is involved in many cellular processes in animals and *** the UPS,E3 ligases(E3s)are essential for recognizing target proteins and promoting substrate *** E3 ligase,SINA(seven in absentia),which was first identified in Drosophila,is involved in a variety of signaling transduction networks in both animals and *** we discuss recent advances in understanding SINA?mediated regulation of plant growth and responses to abiotic and biotic stresses.

关键词： Protein degradation Stress Response SINA E3

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