The complete genome sequence of the algicidal bacterium strain JA and the use of quorum sensing to evaluate its antialgal ability.

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ID: 84808
2020
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Abstract
We describe the isolation of strain JA and demonstrate that this bacterium exhibited strong algicidal effects on the algae with an inhibition rate exceeding 80 % within 48 h JA significantly reduced the photosynthetic efficiency of and caused extensive morphological damage to the algae. Genomic analysis of JA demonstrated that a putative AI-2 type quorum sensing (QS) gene () is present in its genome cluster, which is regulate pheromone biosynthesis. Interestingly, the exogenous addition of a QS-oligopeptide (ComX-pheromone) improved the algicidal efficiency of JA, thus indicating that the algicidal activity of this bacterium is potentially regulated by QS. Collectively, our data describe a potential antialgal bacterium and speculated that its behavior can be modulated by QS signal. JA may therefore represent a valuable tool for the development of novel chemical-ecological methods with which to control harmful algae.
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zhang2020thebiotechnology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sheng-Jie Zhang, Xiao-Peng Du, Jian-Ming Zhu, Chen-Xu Meng, Jin Zhou, Ping Zuo
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Journal biotechnology reports (amsterdam, netherlands)
Year 2020
DOI
10.1016/j.btre.2020.e00421
URL
Keywords
whole-genome sequencing harmful algal blooms quorum sensing antialgal agent b. subtilis ja

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