甲烷菌(英语:Methanogen)为可行无氧呼吸英语Anaerobic respiration作用产生甲烷的微生物,均属广古菌门古菌,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[2]。多数甲烷菌不能在有氧的环境中生存,巴氏甲烷八叠球菌英语Methanosarcina barkeri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英语Pseudopeptidoglycan或蛋白质组成的准结晶英语Paracrystallinity结构[4]

巴氏甲烷八叠球菌

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

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以下列出部分类群的甲烷菌

参见

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参考文献

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  1. ^ 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. 
  2. ^ Joseph W. Lengeler. Biology of the Prokaryotes. Stuttgart: Thieme. 1999: 796. ISBN 978-0-632-05357-5. 
  3. ^ 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. 
  4. ^ 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. 
  5. ^ 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).