Zoosporic plant pathogens produce bacterial autoinducer-2 that affects Vibrio harveyi quorum sensing.

Zoosporic plant pathogens produce bacterial autoinducer-2 that affects Vibrio harveyi quorum sensing.
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DOI:
10.1111/j.1574-6968.2009.01861.x
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发表时间:
2010-02
影响因子:
2.1
通讯作者:
Hong C
Hong C
中科院分区:
生物学4区
文献类型:
--
作者:
Kong P;Lee BW;Zhou ZS;Hong C

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细菌与疫霉属和腐霉属物种的频繁共分离表明可能存在种间交流。以无菌和营养缺乏的游动孢子悬浮液(ZFF)为材料,研究游动孢子卵菌产生细菌种间信号分子自诱导物2(AI-2)的情况。来自烟草疫霉菌、大豆疫霉菌和Py.的ZFF。Aphanidermatum引起哈维氏弧菌AI-2报告基因发光,表明游动孢子胞外产物中存在AI-2,表明卵菌和细菌之间存在跨界通讯。通过化学测定证实游动孢子产生AI-2。这些结果为卵菌的生理生态学研究提供了新的视角。
The frequent co-isolation of bacteria with Phytophthora and Pythium species suggests possible interspecies communication. Zoospore free fluids (ZFF) from bacteria-free and nutrient-depleted zoospore suspensions were examined to investigate production of autoinducer-2 (AI-2), a bacterial interspecies signal molecule, by zoosporic oomycetes. ZFF from P. nicotianae, P. sojae and Py. aphanidermatum triggered luminescence of Vibrio harveyi AI-2 reporter, indicating the presence of AI-2 in zoospore extracellular products and the potential of cross-kingdom communication between oomycetes and bacteria. Production of AI-2 by zoospores was confirmed by chemical assays. These results provide new insight into the physiology and ecology of oomycetes.
DOI: 10.1186/1471-2180-8-98
发表时间: 2008-06-18
期刊: BMC microbiology
影响因子: 4.2
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