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Plant Pattern-Recognition Receptor FLS2 Is Directed for Degradation by the Bacterial Ubiquitin Ligase AvrPtoB
It is proposed that both domains of AvrPtoB act together to support the virulence of PtoDC3000 in Arabidopsis through their ability to eliminate FLS2 from the cell periphery, and probably also other PAMP sensors that are constitutively expressed or induced after pathogen challenge. Expand
The RPM1 plant disease resistance gene facilitates a rapid and sustained increase in cytosolic calcium that is necessary for the oxidative burst and hypersensitive cell death.
Early events occurring during the hypersensitive resistance response (HR) were examined using the avrRpm1/RPM1 gene-for-gene interaction in Arabidopsis challenged by Pseudomonas syringae pv. tomato.Expand
Localization of hydrogen peroxide accumulation during the hypersensitive reaction of lettuce cells to Pseudomonas syringae pv phaseolicola.
Quantitative analysis indicated a prolonged burst of H2O2 occurring between 5 to 8 hr after inoculation in cells undergoing the HR during this example of non-host resistance, which is consistent with its direct role as an antimicrobial agent and as the cause of localized membrane damage at sites of bacterial attachment. Expand
Whole-Genome Sequence Analysis of Pseudomonas syringae pv. phaseolicola 1448A Reveals Divergence among Pathovars in Genes Involved in Virulence and Transposition
Examination of the complement of ORFs encoding virulence, fitness, and survival factors revealed a substantial, but not complete, overlap between these two pathovars. Expand
Enzymes regulating the accumulation of active oxygen species during the hypersensitive reaction of bean to Pseudomonas syringae pv. phaseolicola
The spatial and temporal changes detected in activities of CAT and isoforms of SOD and POD clearly demonstrate the complexity and potential subtlety of control of the production and persistence of AOS in bean following microbial challenge. Expand
Pseudomonas syringae pv. tomato hijacks the Arabidopsis abscisic acid signalling pathway to cause disease
The data suggest that a major virulence strategy is effector‐mediated manipulation of plant hormone homeostasis, which leads to the suppression of defence responses in bacteria secreted by Pseudomonas syringae. Expand
Modifications to the Arabidopsis Defense Proteome Occur Prior to Significant Transcriptional Change in Response to Inoculation with Pseudomonas syringae1[W][OA]
Alterations in the proteome of Arabidopsis (Arabidopsis thaliana) leaves during responses to challenge by Pseudomonas syringae pv tomato DC3000 were analyzed using two-dimensional gel electrophoresis and found to show significant change after bacterial challenge. Expand
Cell Wall Damage-Induced Lignin Biosynthesis Is Regulated by a Reactive Oxygen Species- and Jasmonic Acid-Dependent Process in Arabidopsis1[C][W][OA]
A genetic network enabling plants to regulate lignin biosynthesis in response to CWD through dynamic interactions between JA and ROS is characterized. Expand
A Genome-Wide Functional Investigation into the Roles of Receptor-Like Proteins in Arabidopsis1[W][OA]
A genome-wide collection of Arabidopsis RLP gene T-DNA insertion mutants provides a tool for future investigations into the biological roles of RLPs, and a number of novel developmental phenotypes were revealed for CLV2 and TMM insertion mutants. Expand
Identification of cell-wall stress as a hexose-dependent and osmosensitive regulator of plant responses.
These results identify components of the mechanism that mediates the response to impairment of cell-wall integrity in Arabidopsis thaliana and show that CBI activates responses commonly attributed to both abiotic and microbial challenges. Expand