Detection of Acylated Homoserine Lactone (AHL) in the Heterotrophic Bacteria Z-TG01 and Its Ecological Action on the Algae, Chlorella vulgaris

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dc.contributor.authorTang, Xuexi
dc.contributor.authorBi, Xiangdong
dc.contributor.authorXing, Kezhi
dc.contributor.authorZhou, Wenli
dc.date.accessioned2012-10-15T23:32:18Z
dc.date.available2012-10-15T23:32:18Z
dc.date.issued2012
dc.description.abstractHeterotrophic bacteria Z-TG01 was isolated from the phycosphere of Chlorella vulgaris and identified as Sphingomonas paucimobilis by VITEK 2 Compact automated system with an excellent confidence level (99.0% probability). We detected acylated homoserine lactones (AHL) bioactivity in the growth process of Z-TG01 using Agrobacterium tumefaciens KYC55. The effects of C. vulgaris on AHL bioactivity, as well as the mutual influence of C. vulgaris and Z-TG01 in a co-culture system, were investigated. Results showed that AHL bioactivity of bacteria Z-TG01 varied with the bacteria density and was inhibited by supernatants of C. vulgaris culture in the early and middle exponential phases within 2 h (p<0.01), and in the late exponential phase within 1.5 h (p<0.05 or p<0.01). Within a certain cell density, bacteria Z-TG01 and C. vulgaris promote mutual growth in a co-culture system.
dc.format.extent7 pages
dc.identifier.issn0792-156X
dc.identifier.otherIJA_64.2012.776
dc.identifier.urihttp://hdl.handle.net/10524/31822
dc.relation.ispartofseriesThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectChlorella vulgaris
dc.subjectbacteria Z-TG01
dc.subjectquorum sensing
dc.subjectacylated homoserine lactones (AHL)
dc.subjectecological action
dc.subject.lcshFish culture--Israel.
dc.subject.lcshFish culture.
dc.titleDetection of Acylated Homoserine Lactone (AHL) in the Heterotrophic Bacteria Z-TG01 and Its Ecological Action on the Algae, Chlorella vulgaris

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Volume 64, 2012