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Influence of photoinhibition on nitrification by ammonia-oxidizing microorganisms in aquatic ecosystems
Reviews in Environmental Science and Bio/Technology ( IF 14.4 ) Pub Date : 2020-06-26 , DOI: 10.1007/s11157-020-09540-2
Shimin Lu , Xingguo Liu , Chong Liu , Guofeng Cheng , Hongye Shen

Photoinhibition of ammonia oxidation occurs widely in aquatic environments and could suppress the nitrification rate, lead to the composition variation of inorganic nitrogen and influence the stability of aquatic ecosystems. Both ammonia-oxidizing bacteria (AOB) and archaea are sensitive to light. The extent of photoinhibition and the time required for recovery depend on light wavelength, intensity, photon quantity and strains. Strong evidence indicates that photoinhibition in AOB by visible light is mainly caused by irreversible damage to ammonia monooxygenase (AMO) and the degradation of AMO is beneficial to AOB recovery. This review discusses photoinhibition in metabolic pathways used by ammonia oxidizers.



中文翻译:

光抑制对水生生态系统中氨氧化微生物硝化作用的影响

氨氧化的光抑制作用在水生环境中广泛发生,并可能抑制硝化速率,导致无机氮的组成变化,并影响水生生态系统的稳定性。氨氧化细菌(AOB)和古细菌都对光敏感。光抑制的程度和恢复所需的时间取决于光的波长,强度,光子数量和应变。有力的证据表明可见光对AOB的光抑制作用主要是由对氨单加氧酶(AMO)的不可逆破坏造成的,并且AMO的降解有利于AOB的回收。这篇评论讨论了氨氧化剂使用的代谢途径中的光抑制作用。

更新日期:2020-06-26
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