نتایج جستجو برای: pamp triggered immunity

تعداد نتایج: 138583  

2014
Henrik U. Stotz Georgia K. Mitrousia Pierre J.G.M. de Wit Bruce D.L. Fitt

R gene-mediated host resistance against apoplastic fungal pathogens is not adequately explained by the terms pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) or effector-triggered immunity (ETI). Therefore, it is proposed that this type of resistance is termed 'effector-triggered defence' (ETD). Unlike PTI and ETI, ETD is mediated by R genes encoding cell surface-localised ...

2014
Mi Sun Cheong Angela Kirik Jung-Gun Kim Kenneth Frame Viktor Kirik Mary Beth Mudgett

Bacterial pathogens of plant and animals share a homologous group of virulence factors, referred to as the YopJ effector family, which are translocated by the type III secretion (T3S) system into host cells during infection. Recent work indicates that some of these effectors encode acetyltransferases that suppress host immunity. The YopJ-like protein AvrBsT is known to activate effector-trigger...

2013
Xin Guan Günther Buchholz Peter Nick

Plant innate immunity is composed of two layers. Basal immunity is triggered by pathogen-associated molecular patterns (PAMPs) such as the flagellin-peptide flg22 and is termed PAMP-triggered immunity (PTI). In addition, effector-triggered immunity (ETI) linked with programmed cell death and cytoskeletal reorganization can be induced by pathogen-derived factors, such as the Harpin proteins orig...

Journal: :Current Biology 2014
Thierry Halter Julia Imkampe Sara Mazzotta Michael Wierzba Sandra Postel Christoph Bücherl Christian Kiefer Mark Stahl Delphine Chinchilla Xiaofeng Wang Thorsten Nürnberger Cyril Zipfel Steven Clouse Jan Willem Borst Sjef Boeren Sacco C. de Vries Frans Tax Birgit Kemmerling

BACKGROUND Transmembrane leucine-rich repeat (LRR) receptors are commonly used innate immune receptors in plants and animals but can also sense endogenous signals to regulate development. BAK1 is a plant LRR-receptor-like kinase (RLK) that interacts with several ligand-binding LRR-RLKs to positively regulate their functions. BAK1 is involved in brassinosteroid-dependent growth and development, ...

Journal: :The Plant cell 2010
Yujing Wang Jifeng Li Shuguo Hou Xingwei Wang Yuan Li Dongtao Ren She Chen Xiaoyan Tang Jian-Min Zhou

The successful recognition of pathogen-associated molecular patterns (PAMPs) as a danger signal is crucial for plants to fend off numerous potential pathogenic microbes. The signal is relayed through mitogen-activated protein kinase (MPK) cascades to activate defenses. Here, we show that the Pseudomonas syringae type III effector HopF2 can interact with Arabidopsis thaliana MAP KINASE KINASE5 (...

Journal: :The Plant cell 2017
Dominique Arnaud Seungchul Lee Yumiko Takebayashi Daeseok Choi Jaemyung Choi Hitoshi Sakakibara Ildoo Hwang

Stomata play an important role in preinvasive defense responses by limiting pathogen entry into leaves. Although the stress hormones salicylic acid (SA) and abscisic acid (ABA) are known to regulate stomatal immunity, the role of growth promoting hormones is far from understood. Here, we show that in Arabidopsis thaliana, cytokinins (CKs) function in stomatal defense responses. The cytokinin re...

Journal: :The Plant cell 2012
Chan-Ho Park Songbiao Chen Gautam Shirsekar Bo Zhou Chang Hyun Khang Pattavipha Songkumarn Ahmed J Afzal Yuese Ning Ruyi Wang Maria Bellizzi Barbara Valent Guo-Liang Wang

Although the functions of a few effector proteins produced by bacterial and oomycete plant pathogens have been elucidated in recent years, information for the vast majority of pathogen effectors is still lacking, particularly for those of plant-pathogenic fungi. Here, we show that the avirulence effector AvrPiz-t from the rice blast fungus Magnaporthe oryzae preferentially accumulates in the sp...

Journal: :Plant signaling & behavior 2013
Jean Colcombet Souha Berriri Heribert Hirt

Mitogen-Activated Protein Kinase (MAPK) modules are often involved in stress responses and plant developmental processes. Among these MAPKs, MPK4 has a complex role in biotic stress signaling, cell division control and cytoskeletal organization. mpk4 knockout (KO) plants are dwarfed and very sick, making it difficult to distinguish between cause and effect of its phenotype. To overcome this dif...

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