甲烷菌(英語:Methanogen)為可行無氧呼吸英语Anaerobic respiration作用產生甲烷的微生物,均屬廣古菌門古菌,通常生長在厭氧的環境,如濕地沼澤、動物的消化道中與缺乏硫酸鹽的海底沉積物[1],在沼澤中可產生沼氣,在消化道則會造成打嗝[2]。多數甲烷菌不能在有氧的環境中生存,巴氏甲烷八叠球菌英语Methanosarcina barkeri為少數例外,因具有超氧化物歧化酶(SOD)而對氧氣的抗性稍強[3]。甲烷菌的細胞壁成分為假肽聚糖英语Pseudopeptidoglycan或蛋白質組成的准結晶英语Paracrystallinity結構[4]

巴氏甲烷八叠球菌

有些甲烷菌可分解有機污染物,因而被用於處理污水[5]

種類

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以下列出部分類群的甲烷菌

參見

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參考文獻

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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).