甲烷菌
甲烷菌(英语:Methanogen)为可行无氧呼吸作用产生甲烷的微生物,均属广古菌门的古菌,通常生长在厌氧的环境,如湿地沼泽、动物的消化道中与缺乏硫酸盐的海底沉积物[1],在沼泽中可产生沼气,在消化道则会造成打嗝与屁[2]。多数甲烷菌不能在有氧的环境中生存,巴氏甲烷八叠球菌为少数例外,因具有超氧化物歧化酶(SOD)而对氧气的抗性稍强[3]。甲烷菌的细胞壁成分为假肽聚糖或蛋白质组成的准结晶结构[4]。
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Methanosarcina_barkeri_fusaro.gif/150px-Methanosarcina_barkeri_fusaro.gif)
有些甲烷菌可分解有机污染物,因而被用于处理污水[5]。
种类
编辑以下列出部分类群的甲烷菌
参见
编辑- 嗜极生物
- 氢循环
- 甲烷水合物
- 反刍动物消化道中的甲烷菌
- 甲烷氧化菌:可代谢甲烷,以甲烷作为碳源的细菌
参考文献
编辑- ^ J.K. Kristjansson; et al. Different Ks values for hydrogen of methanogenic bacteria and sulfate-reducing bacteria: an explanation for the apparent inhibition of methanogenesis by sulfate. Arch. Microbiol. 1982, 131 (3): 278–282. S2CID 29016356. doi:10.1007/BF00405893.
- ^ Joseph W. Lengeler. Biology of the Prokaryotes. Stuttgart: Thieme. 1999: 796. ISBN 978-0-632-05357-5.
- ^ Peters, V.; Conrad, R. Methanogenic and other strictly anaerobic bacteria in desert soil and other oxic sois. Applied and Environmental Microbiology. 1995, 61 (4): 1673–1676. Bibcode:1995ApEnM..61.1673P. PMC 1388429 . PMID 16535011. doi:10.1128/AEM.61.4.1673-1676.1995.
- ^ Boone, David R. Methanobacterium. Bergey's Manual of Systematics of Archaea and Bacteria. John Wiley & Sons, Ltd. 2015: 1–8. ISBN 9781118960608. doi:10.1002/9781118960608.gbm00495.
- ^ Tabatabaei, Meisam; Rahim, Raha Abdul; Abdullah, Norhani; Wright, André-Denis G.; Shirai, Yoshihito; Sakai, Kenji; Sulaiman, Alawi; Hassan, Mohd Ali. Importance of the methanogenic archaea populations in anaerobic wastewater treatments (PDF). Process Biochemistry. 2010, 45 (8): 1214–1225 [2022-11-16]. doi:10.1016/j.procbio.2010.05.017. (原始内容存档 (PDF)于2022-11-16).