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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.

Stack Heterotrimeric G Proteins and MAPK Cascades on a RACK

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Molecular Plant 2015年第12期8卷 1691-1693页

作者： Xiangzong Meng libo shan Ping He Department of Biochemistry and Biophysics Institute for Plant Genomics and Biotechnology Texas A&M University College Station TX 77843 USA. Department of Plant Pathology and Microbiology Institute for Plant Genomics and Biotechnology Texas A&M University College Station TX 77843 USA. Department of Biochemistry and Biophysics Institute for Plant Genomics and Biotechnology Texas A&M University College Station TX 77843 USA. Electronic address: pinghe@tamu.edu.

The heterotrimeric G protein complex composed of Gα, Gβ, and Gγ subunits serves as one of the key signal transducers in eukaryotes. In animals, heterotrimeric G proteins are activated by G protein-coupled receptors...

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Small holes,big impact:Stomata in plant–pathogen–climate epic trifecta

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Molecular Plant 2024年第1期17卷 26-49页

作者： Shuguo Hou Olivier Rodrigues Zunyong Liu libo shan Ping He Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agriculture Sciences in WeifangWeifangShandong 261325China School of Municipal&Environmental Engineering Shandong Jianzhu UniversityJinanShandong 250101China Unitéde Recherche Physiologie Pathologie et Génétique VégétalesUniversitéde Toulouse Midi-PyrénéesINP-PURPAN31076 ToulouseFrance Department of Molecular Cellularand Developmental BiologyUniversity of MichiganAnn ArborMI 48109USA

The regulation of stomatal aperture opening and closure represents an evolutionary battle between plants and pathogens,characterized by adaptive strategies that influence both plant resistance and pathogen *** ongoing climate change introduces further complexity,affecting pathogen invasion and host *** review delves into recent advances on our understanding of the mechanisms governing immunity-related stomatal movement and patterning with an emphasis on the regulation of stomatal opening and closure dynamics by pathogen patterns and host *** addition,the review explores how climate changes impact plant–pathogen interactions by modulating stomatal *** light of the pressing challenges associated with food security and the unpredictable nature of climate changes,future research in this field,which includes the investigation of spatiotemporal regulation and engineering of stomatal immunity,emerges as a promising avenue for enhancing crop resilience and contributing to climate control strategies.

关键词： stomatal movement stomatal patterning plant resistance pathogen virulence apoplastic immunity and climate change

Plant plasma membrane-resident receptors:Surveillance for infections and coordination for growth and development

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Journal of Integrative Plant Biology 2021年第1期63卷 79-101页

作者： Ana Marcia Escocard de Azevedo Manhaes Fausto Andres Ortiz-Morea Ping He libo shan Department of Plant Pathology and Microbiology Texas A&M UniversityCollege Station Texas77843USA Department of Biochemistry and Biophysics Texas A&M UniversityCollege Station Texas77843USA Centro de Investigaciones Amazonicas CIMAZ-MACAGUAL Universidad de la AmazoniaFlorencia 180002622Colombia

As sessile organisms, plants are exposed to pathogen invasions and environmental fluctuations. To overcome the challenges of their surroundings, plants acquire the potential to sense endogenous and exogenous cues, resulting in their adaptability. Hence, plants have evolved a large collection of plasma membrane-resident receptors, including RECEPTOR-LIKE KINASEs(RLKs) and RECEPTOR-LIKE PROTEINs(RLPs) to perceive those signals and regulate plant growth,development, and immunity. The ability of RLKs and RLPs to recognize distinct ligands relies on diverse categories of extracellular domains evolved. Co-regulatory receptors are often required to associate with RLKs and RLPs to facilitate cellular signal transduction. RECEPTOR-LIKE CYTOPLASMIC KINASEs(RLCKs) also associate with the complex, bifurcating the signal to key signaling hubs, such as MITOGEN-ACTIVATED PROTEIN KINASE(MAPK) cascades, to regulate diverse biological processes. Here, we discuss recent knowledge advances in understanding the roles of RLKs and RLPs in plant growth, development, and immunity, and their connection with co-regulatory receptors, leading to activation of diverse intracellular signaling pathways.

关键词： co-regulatory receptors plant growth and development plant immunity RECEPTOR-LIKE KINASE(RLK) RECEPTOR-LIKE PROTEIN(RLP) signal transduction

Arabidopsis RNA polymerase Ⅱ C-terminal domain phosphatase-like 1 targets mitogen-activated protein kinase cascades to suppress plant immunity

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Journal of Integrative Plant Biology 2023年第10期65卷 2380-2394页

作者： Junjun Wei Wei Sun Xinhang Zheng shanshan Qiu Shuangyu Jiao Kevin Babilonia Hisashi Koiwa Ping He libo shan Wenxian Sun Fuhao Cui Department of Plant Pathology and the Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management China Agricultural UniversityBeijing 100193China Department of Biochemistry and Biophysics Texas A&M UniversityCollege StationTX 77843USA Department of Horticultural Sciences Texas A&M UniversityCollege StationTX 77843USA

Mitogen-activated protein kinase(MAPK) cascades play pivotal roles in plant defense against phytopathogens downstream of immune receptor complexes. The amplitude and duration of MAPK activation must be strictly controlled, but the underlying mechanism remains unclear. Here, we identified Arabidopsis CPL1(C-terminal domain phosphatase-like 1)as a negative regulator of microbe-associated molecular pattern(MAMP)-triggered immunity via a forward-genetic screen. Disruption of CPL1 significantly enhanced plant resistance to Pseudomonas pathogens induced by the bacterial peptide fg22. Furthermore, fg22-induced MPK3/MPK4/MPK6 phosphorylation was dramatically elevated in cpl1 mutants but severely impaired in CPL1 overexpression lines, suggesting that CPL1 might interfere with fg22-induced MAPK activation. Indeed, CPL1 directly interacted with MPK3 and MPK6, as well as the upstream MKK4 and MKK5. A firefy luciferase-based complementation assay indicated that the interaction between MKK4/MKK5 and MPK3/MPK6 was significantly reduced in the presence of CPL1. These results suggest that CPL1 plays a novel regulatory role in suppressing MAMP-induced MAPK cascade activation and MAMP-triggered immunity to bacterial pathogens.

关键词： Arabidopsis C-terminal domain(CTD)phosphatase-like 1(CPL1) microbe-associated molecular pattern(MAMP) mitogen-activated protein kinase(MAPK) pattern-triggered immunity(PTI)

Cotton GhBAK1 Mediates Verticillium Wilt Resistance and Cell Death

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Journal of Integrative Plant Biology 2013年第7期55卷 586-596页

作者： Xiquan Gao Fangjun Li Maoying Li Ali S.Kianinejad Jane K.Dever Terry A.Wheeler Zhaohu Li Ping He libo shan Department of Plant Pathology and Microbiology and Institute for Plant Genomics and BiotechnologyTexas A&M UniversityCollege Station College of Agriculture Nanjing Agricultural University College of Agronomy and Biotechnology China Agricultural University Department of Biochemistry and Biophysics and Institute for Plant Genomics and Biotechnology Texas A&M UniversityCollege Station University of Texas at Brownsville Texas A&M AgriLife Research and Extension Center

Virus-induced gene silencing （VIGS） offers a powerful approach for functional analysis of individual genes by knocking down their expression. We have adopted this approach to dissect gene functions in cotton resistant to Verticfllium wilt, one of the most devastating diseases worldwide. We showed here that highly efficient VIGS was obtained in a cotton breeding line （CA4002） with partial resistance to Verticillium wilt, and GhMKK2 and Gh Ve I are required for its resistance to Verticillium wilt. Arabidopsis AtBAK1/SERK3, a central regulator in plant disease resistance, belongs to a subfamily of somatic embryogenesis receptor kinases （SERKs） with five members, AtSERK1 to AtSERK5. Two BAK1 orthologs and one SERK1 ortholog were identified in the cotton genome. Importantly, GhBAK1 is required for CA4002 resistance to Verticillium wilt. Surprisingly, silencing of GhBAK1 is sufficient to trigger cell death accompanied with production of reactive oxygen species in cotton. This result is distinct from Arabidopsis in which AtBAK1 and AtSERK4 play redundant functions in cell death control. Apparently, cotton has only evolved SERK1 and BAK1 whereas AtSERK4/5 are newly evolved genes in Arabidopsis. Our studies indicate the functional importance of BAK1 in Verticillium wilt resistance and suggest the dynamic evolution of SERK family members in different plant species.

关键词： Cell death: Gossvoium hirsutum: Verticillium dahliae: virus-induced qene silence.

BAK1-mediated crosstalk of MAPK and CDPK cascades in the regulation of ROS production and cell death during plant innate immunity

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BAK1-mediated crosstalk of MAPK and CDPK cascades in the reg...

Molecular Signaling in Plant-bacteria Interaction

2013全国植物生物学大会

作者： GAO Xiquan shan libo HE Ping State Key Laboratory of Crop Genetics and Germplasm Improvement College of AgricultureNanjing Agricultural University Institute for Plant Genomics and Biotechnology Texas A&M UniversityTAMU 2123College Station

Plant innate immunity generally consists of two branches,pathogen associated molecule patterns(PAMPs)-triggered innate immunity(PTI) and effector-triggered immunity(ETI).Significantly accumulating evi

关键词： BAK1 CDPKs MAPKs hypersensitive response reactive oxygen species

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Molecular Signaling in Plant-bacteria Interaction

Genetic Dissection of Arabidopsis Genes Governing Immune Gene Expression（Aggie）

中国植物病理学会2011年学术年会

作者： libo shan (Texas A&M University,College Station,TX)

＜正＞Plants and animals rely on immune sensory complexes to detect infections by recognizing evolutionarily conserved pathogen *** use Arabidopsis-Pseudomonas as a model system to study plant-bacterial *** Arabidopsis immune senor FLS2,a leucine-rich repeat receptor-like kinase（LRR-RLK）,recognizes bacterial flagellin and initiates immune signaling by association with another LRR-RLK *** remains unknown how the activity of FLS2/BAK1 receptor complex is regulated and leads to

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Genetic Dissection of Arabidopsis Genes Governing Immune Gen...