نتایج جستجو برای: hypersensitive response hr

تعداد نتایج: 1038079  

Journal: :Carcinogenesis 2003
John M Hinz Thomas Helleday Mark Meuth

Eukaryotic cells respond to DNA damage by activation of DNA repair, cell-cycle arrest and apoptosis. Several reports suggest that such responses may be coordinated by communication between damage repair proteins and proteins signalling other cellular responses. The Rad51-guided homologous recombination (HR) repair plays an important role in recognition and repair of DNA double-strand breaks (DS...

2010
Hisham Abukamleh

In plants, resistance (R) gene-mediated defense confers resistance to a specific pest or pathogen following recognition of their avirulence (Avr) effectors. R-Avr mediated resistance is often conferred by a hypersensitive response that results in localized cell death at the infection site which starves the pathogen or pest. Mi-1 is a tomato R gene that confers resistance to rootknot nematodes, ...

2012
Elżbieta Orłowska Alessio Basile Izabela Kandzia Briardo Llorente Hanne Grethe Kirk Cristina Cvitanich

The defence responses of potato against Phytophthora infestans were studied using the highly resistant Sarpo Mira cultivar. The effects of plant integrity, meristems, and roots on the hypersensitive response (HR), plant resistance, and the regulation of PR genes were analysed. Sarpo Mira shoots and roots grafted with the susceptible Bintje cultivar as well as non-grafted different parts of Sarp...

Journal: :The Plant journal : for cell and molecular biology 2006
Marta de Torres John W Mansfield Nina Grabov Ian R Brown Hassan Ammouneh George Tsiamis Alec Forsyth Silke Robatzek Murray Grant Jens Boch

The virulence and avirulence activities of members of the Pseudomonas syringae HopAB family of effectors and AvrPto were examined in bean, tomato and Arabidopsis. Proteins were delivered by the RW60 strain of P. syringae pv. phaseolicola. RW60 causes a hypersensitive reaction (HR) in bean and tomato but is restricted without the HR in Arabidopsis. Dual avirulence and virulence functions in toma...

Journal: :The Plant cell 2015
David Munch Ooi-Kock Teh Frederikke Gro Malinovsky Qinsong Liu Ramesh R Vetukuri Farid El Kasmi Peter Brodersen Ikuko Hara-Nishimura Jeffery L Dangl Morten Petersen John Mundy Daniel Hofius

Membrane trafficking is required during plant immune responses, but its contribution to the hypersensitive response (HR), a form of programmed cell death (PCD) associated with effector-triggered immunity, is not well understood. HR is induced by nucleotide binding-leucine-rich repeat (NB-LRR) immune receptors and can involve vacuole-mediated processes, including autophagy. We previously isolate...

2014
Pradip K. Tarafdar Lakshmi Vasudev Vedantam Rajeshwer S. Sankhala Pallinti Purushotham Appa Rao Podile Musti J. Swamy

HrpZ-a harpin from Pseudomonas syringae-is a highly thermostable protein that exhibits multifunctional abilities e.g., it elicits hypersensitive response (HR), enhances plant growth, acts as a virulence factor, and forms pores in plant plasma membranes as well as artificial membranes. However, the molecular mechanism of its biological activity and high thermal stability remained poorly understo...

Journal: :Molecular plant-microbe interactions : MPMI 2000
G Astua-Monge G V Minsavage R E Stall M J Davis U Bonas J B Jones

Tomato race 3 (T3) of Xanthomonas campestris pv. vesicatoria (Xcv) elicits a hypersensitive response (HR) in leaves of Lycopersicon esculentum near-isogenic line (NIL) 216 and pepper genotypes. One cosmid clone (35 kb) selected from a genomic library of a T3 strain induced an HR in all resistant plants. A 1.5-kb active subclone containing the putative avirulence (avr) gene, designated avrXv3, w...

2015
Guan-Feng Wang Jiabing Ji Farid EI-Kasmi Jeffery L. Dangl Guri Johal Peter J. Balint-Kurti

Plant disease resistance is often mediated by nucleotide binding-leucine rich repeat (NLR) proteins which remain auto-inhibited until recognition of specific pathogen-derived molecules causes their activation, triggering a rapid, localized cell death called a hypersensitive response (HR). Three domains are recognized in one of the major classes of NLR proteins: a coiled-coil (CC), a nucleotide ...

Journal: :The Plant cell 2007
Sébastien Cunnac Ariane Wilson Jamie Nuwer Angela Kirik Gayathri Baranage Mary Beth Mudgett

AvrBsT is a type III effector from Xanthomonas campestris pv vesicatoria that is translocated into plant cells during infection. AvrBsT is predicted to encode a Cys protease that targets intracellular host proteins. To dissect AvrBsT function and recognition in Arabidopsis thaliana, 71 ecotypes were screened to identify lines that elicit an AvrBsT-dependent hypersensitive response (HR) after Xa...

2003
Laura De Gara Maria C. de Pinto Franca Tommasi

Plant resistance to pathogens requires the activation of complex metabolic pathways in the infected cells, aimed at recognizing pathogen presence and hindering its propagation within plant tissues. In spite of this both compatible and incompatible responses induce alterations in plant metabolism, only in the latter the plant is able to efficiently block pathogen penetration without suffering ex...

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