%0 Journal Article
%T Degradation of Microcystin-LR and RR by a Stenotrophomonas sp. Strain EMS Isolated from Lake Taihu, China
%A Jian Chen
%A Liang Bin Hu
%A Wei Zhou
%A Shao Hua Yan
%A Jing Dong Yang
%A Yan Feng Xue
%A Zhi Qi Shi
%J International Journal of Molecular Sciences
%D 2010
%I MDPI AG
%R 10.3390/ijms11030896
%X A bacterial strain EMS with the capability of degrading microcystins (MCs) was isolated from Lake Taihu, China. The bacterium was tentatively identified as a Stenotrophomonas sp. The bacterium could completely consume MC-LR and MC-RR within 24 hours at a concentration of 0.7 ¦Ìg/mL and 1.7 ¦Ìg/mL, respectively. The degradation of MC-LR and MC-RR by EMS occurred preferentially in an alkaline environment. In addition, mlrA gene involved in the degradation of MC-LR and MC-RR was detected in EMS. Due to the limited literature this gene has rare homologues. Sequencing analysis of the translated protein from mlrA suggested that MlrA might be a transmembrane protein, which suggests a possible new protease family having unique function.
%K degradation
%K microcystin-LR
%K microcystin-RR
%K cyanobacteria
%K EMS
%K mlrA
%U http://www.mdpi.com/1422-0067/11/3/896