| Rhizobial measures to evade host defense strategies and endogenous threats to persistent symbiotic nitrogen fixation: a focus on two legume-rhizobium model systems. | |
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MedLine Citation:
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PMID: 21365276 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The establishment and maintenance of rhizobium-legume symbioses require a sequence of highly regulated and coordinated events between the organisms. Although the interaction is mutually beneficial under nitrogen-limited conditions, it can resemble a pathogenic infection at some stages. Some host legumes mount defense reactions, including the production of reactive oxygen species (ROS) and defensin-like antimicrobial compounds. To subvert these host defenses, the infecting rhizobial cells can use measures to passively protect themselves and actively modulate host functions. This review first describes the establishment and maintenance of active nodules, as well as the external and endogenous attack and threat stages. Next, recent studies of ROS scavenging enzymes, the BacA protein originally found in Sinorhizobium meliloti, and the type III/IV secretion systems are discussed, with a focus on two legume-rhizobium model systems. |
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Authors:
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Kazuhiko Saeki |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-3-2 |
Journal Detail:
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Title: Cellular and molecular life sciences : CMLS Volume: - ISSN: 1420-9071 ISO Abbreviation: - Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-3-2 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9705402 Medline TA: Cell Mol Life Sci Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Biological Sciences, Faculty of Science, Nara Women's University, Kitauoya Nishimachi, Nara, 850-6503, Japan, ksaeki@cc.nara-wu.ac.jp. |
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