Wang Gejiao, Huang Yinyan, Li Jie
State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
Wei Sheng Wu Xue Bao. 2011 Feb;51(2):154-60.
It was discovered that there are certain microorganisms that can use the extraordinary toxic metalloid arsenic (As) to gain energy for their growth, even use arsenic instead of phosphorus to grow. In this article, we reviewed recent advanced research achievements and summarized these microbial arsenic metabolisms in the following 6 aspects: 1. Gaining energy by chemolithoautotrophic As (III) oxidation; 2. Gaining energy by chemoorganoheterotrophic As (III) oxidation; 3. Gaining energy by respiratory As (V) reduction; 4. As (III) oxidation coupling with photosynthesis; 5. The interactions among As (III) oxidation, As (V) reduction and As (III) oxidation coupling with photosynthesis; 6. Growth using As (V) instead of phosphorus. Gaining information of microbial arsenic metabolisms is fundamental important for better understanding of life creation, biodiversity, evaluation, biogeochemical cycle and bioremediation.
人们发现，某些微生物能够利用剧毒类金属砷（As）来获取生长所需的能量，甚至能用砷替代磷进行生长。在本文中，我们回顾了近期的前沿研究成果，并从以下6个方面总结了这些微生物的砷代谢：1. 通过化学无机自养型砷（III）氧化获取能量；2. 通过化学有机异养型砷（III）氧化获取能量；3. 通过呼吸作用将砷（V）还原获取能量；4. 砷（III）氧化与光合作用的耦合；5. 砷（III）氧化、砷（V）还原以及砷（III）氧化与光合作用耦合之间的相互作用；6. 利用砷（V）替代磷进行生长。了解微生物的砷代谢信息对于更好地理解生命起源、生物多样性、评估、生物地球化学循环和生物修复至关重要。
