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Rodríguez Herva, Jose Juan and Gonzalez-Melendi de Leon, Pablo and Cuartas-Lanza, Raquel and Antúnez-Lamas, María and Río-Álvarez, Isabel and Li, Ziduo and López-Torrejón, Gema and Diaz Rodriguez, Isabel and Pozo, Juan C. del and Chakravarthy, Suma and Collmer, Alan and Rodriguez Palenzuela, Pablo and Lopez Solanilla, Emilia (2012). A bacterial cysteine protease effector protein interferes with photosynthesis to suppress plant innate immune responses. "Cellular Microbiology", v. 14 (n. 5); pp. 669-681. ISSN 1462-5814. https://doi.org/10.1111/j.1462-5822.2012.01749.x.
Title: | A bacterial cysteine protease effector protein interferes with photosynthesis to suppress plant innate immune responses |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Cellular Microbiology |
Date: | 15 February 2012 |
ISSN: | 1462-5814 |
Volume: | 14 |
Subjects: | |
Faculty: | Centro de Investigación en Biotecnología y Genómica de Plantas (CBGP) (UPM) |
Department: | Otro |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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The bacterial pathogen Pseudomonas syringae pv tomato DC3000 suppresses plant innate immunity with effector proteins injected by a type III secretion system (T3SS). The cysteine protease effector HopN1, which reduces the ability of DC3000 to elicit programmed cell death in non-host tobacco, was found to also suppress the production of defence-associated reactive oxygen species (ROS) and callose when delivered by Pseudomonas fluorescens heterologously expressing a P. syringae T3SS. Purified His 6 -tagged HopN1 was used to identify tomato PsbQ, a member of the oxygen evolving complex of photosystem II (PSII), as an interacting protein. HopN1 localized to chloroplasts and both degraded PsbQ and inhibited PSII activity in chloroplast preparations, whereas a HopN1 D299A non-catalytic mutant lost these abilities. Gene silencing of NtPsbQ in tobacco compromised ROS production and programmed cell death.
Item ID: | 15600 |
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DC Identifier: | https://oa.upm.es/15600/ |
OAI Identifier: | oai:oa.upm.es:15600 |
DOI: | 10.1111/j.1462-5822.2012.01749.x |
Deposited by: | Memoria Investigacion |
Deposited on: | 17 Sep 2013 17:21 |
Last Modified: | 21 Apr 2016 15:51 |