Alicyclobacillus sp. strain CC2, a thermo-acidophilic bacterium isolated from Deception Island(Antarctica) containing a thermostable superoxide dismutase enzyme  

作　　者：Daniela N. Correa-Llantén Maximiliano J. Amenábar Patricio A. Mu?oz María T. Monsalves Miguel E. Castro Jenny M. Blamey 

机构地区：[1]Fundación Científicay Cultural Biociencia, José Domingo Ca?as 2280, Santiago 8340457, Chile

出　　处：《Advances in Polar Science》2014年第2期92-96,共5页极地科学进展（英文版）

基　　金：supported by projects Gabinete G04-09 from INACH and Grant Innova-CORFO No 07CN13PXT-264

摘　　要：A gram-positive, rod-shaped, aerobic, thermo-acidophilic bacterium CC2 （optimal temperature 55℃ and pH 4.0）, belonging to the genus Alicyclobacillus was isolated from geothermal soil collected from ＂Cerro Caliente＂, Deception Island, Antarctica. Owing to the harsh environmental conditions found in this territory, microorganisms are exposed to conditions that trigger the generation of reactive oxygen species （ROS）. They must have an effective antioxidant defense system to deal with this oxidative stress. We focused on one of the most important enzymes： superoxide dismutase, which was partially purified and characterized. This study presents the first report of a thermo-acidophilic bacterium isolated from Deception lsland with a thermostable superoxide dismutase （SOD）.A gram-positive, rod-shaped, aerobic, thermo-acidophilic bacterium CC2 （optimal temperature 55℃ and pH 4.0）, belonging to the genus Alicyclobacillus was isolated from geothermal soil collected from ＂Cerro Caliente＂, Deception Island, Antarctica. Owing to the harsh environmental conditions found in this territory, microorganisms are exposed to conditions that trigger the generation of reactive oxygen species （ROS）. They must have an effective antioxidant defense system to deal with this oxidative stress. We focused on one of the most important enzymes： superoxide dismutase, which was partially purified and characterized. This study presents the first report of a thermo-acidophilic bacterium isolated from Deception lsland with a thermostable superoxide dismutase （SOD）.

关 键 词：ANTARCTICA thermo-acidophile SOD geothermal Deception Island 

分 类 号：Q93[生物学—微生物学]