Biodegradation mechanism of microcystin-LR by a novel isolate of Rhizobium sp. TH and the evolutionary origin of the mlrA gene

• Published in: International biodeterioration & biodegradation Vol. 115; pp. 17 - 25
• Main Authors: Zhu, Xiaoyun, Shen, Yitian, Chen, Xiaoguo, Hu, Yue O.O., Xiang, Huiyi, Tao, Jia, Ling, Yun
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2016
• Subjects: Alphaproteobacteria; Bacteria; Bacteria (microorganisms); Biodegradation; Degradation; ecosystems; Environmental sample; Escherichia coli; eutrophic environment; eutrophication; evolutionary biology; Evolutionary origin; First-order rate constants; gamma-Proteobacteria; Gammaproteobacteria; gene; Gene expression; Gene transfer; Genes; Heterologous expression; heterologous gene expression; Horizontal gene transfer; Mechanism; Mechanisms; Microcystin; microcystin-LR; Microcystins; mlrA gene; multigene family; Phylogenetic analysis; phylogenetics; phylogeny; Proteobacteria; Rate constants; reaction kinetics; rhizobacterium; Rhizobium; Rhizobium sp; Sphingomonadales; Strain; surface water; Toxic materials; toxin; Degradation; Microcystin; mlrA gene; Evolutionary origin; Rhizobium; Mechanism

The frequent presence of microcystin (MC) in eutrophic water bodies worldwide poses a serious threat to ecosystems. Biodegradation has been extensively investigated as a main pathway for MC attenuation, and an mlr-dependent mechanism of MC degradation have been elucidated in detail. However, the evo...