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首页> 外文会议>International Conference on Environmental, Industrial and Applied Microbiology >Ability of Ralstonia solanacearum phylotype II to adapt to environmental prevailing factors in water
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Ability of Ralstonia solanacearum phylotype II to adapt to environmental prevailing factors in water

机译：Ralstonia solanacearum phylotype II的能力适应水中的环境普遍因素

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摘要

Ralstonia solanacearum is a devastating phytopathogen whose phylotype (ph) II might have established in watercouses of the European Union by adaptation to environmental prevailing factors. To unveil this ability, adaptive strategies were examined in survival experiments conducted in microcosms of oligotrophic natural water, inoculated with R. solanacearum ph II isolated from European cold habitats, and incubated at a range of environmental temperatures in conditions of reduced nutrient availability. Populations of total, viable and culturable R. solanacearum cells pointed out to the entrance into a viable-but-non-culturable state at 4°C, a survival response suggesting that R. solanacearum ph II isolated from cold habitats was not naturally cold-adapted. On the contrary, R. solanacearum populations at 14°C and 24°C indicated that the adaptive strategies were starvation-survival responses influenced by temperature. Knowledge on R. solanacearum survival mechanisms when facing stress in natural conditions can help to control the spread of the bacterial wilt disease.
机译：青枯病是一种破坏性的植物病原体，其种系型（PH）II可以通过调整建立在欧盟的watercouses环境普遍因素。揭开这种能力，在贫营养的天然水，用青枯雷尔氏菌的pH II从欧洲冷分离栖息地接种缩影进行存活实验进行了检查自适应策略，在一系列在降低的养分可利用性条件的环境温度下的温育。总的，可行的和培养的青枯雷尔氏菌的细胞群指出，以进入一个可行的，但是，不可培养的状态在4℃下，生存响应表明从冷分离栖息青枯pH值II是不自然冷适应。相反，青枯雷尔氏菌群体在14℃和24℃下表明自适应战略是受温度的影响饥饿存活反应。知识上青枯菌的生存机制时，在自然条件下面临的压力可以帮助控制青枯病疾病的传播。

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