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''Pseudomonas savastanoi'' is a Gram-negative plant pathogenic bacterium that infects a variety of plants. It was once considered a pathovar of ''Pseudomonas syringae,'' but following DNA-relatedness studies, it was instated as a new species. It is named after Savastano, a worker who proved between 1887 and 1898 that olive knot are caused by bacteria.〔George M. Garrity: ''Bergey's Manual of Systematic Bacteriology''. 2. Auflage. Springer, New York, 2005, Volume 2: ''The Proteobacteria, Part B: The Gammaproteobacteria''〕 〔Joseph M. Ogawa,Harley English: ''Diseases of temperate zone tree fruit and nut crops''〕 The pathovar of greatest economical significance is ''Pseudomonas savastanoi'' pv. ''savastanoi'', which causes the disease olive knot. Symptoms include formation of galls on infected trees; tumour formation is induced by indoleacetic acid biosynthesis by the bacteria, in a similar manner to the well-studied crown gall pathogen, ''Agrobacterium tumefaciens''.〔Hosni T, et al. 2011. Sharing of quorum-sensing signals and role of interspecies communities in a bacterial plant disease. ISME J. .〕 == Pathovars == * ''Pseudomonas savastanoi'' pv. ''fraxini'' causes ash canker.〔Smith, Dunez, Lelliot, Phillips and Archer (1988) European Handbook of Plant Disease. Blackwell Scientific Publications.〕 * ''Pseudomonas savastanoi'' pv. ''nerii'' attacks oleander.〔 * ''Pseudomonas savastanoi'' pv. ''savastanoi'' causes olive knot.〔 * ''Pseudomonas savastanoi'' pv. ''phaseolicola'' attacks ''Phaseolus'' (bean) plants 〔B. P Borowicz, A Maćkowiak, H Pospieszny (2002) Improved identification of ''Pseudomonas savastanoi'' pv. ''phaseolicola'' at the molecular level. EPPO Bulletin 32 (3), 467–469.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pseudomonas savastanoi」の詳細全文を読む スポンサード リンク
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