Comammox bacteria and ammonia oxidizing archaea are major drivers of nitrification in glacier forelands

This study investigated the abundance of comammox bacteria and canonical ammonia-oxidizing bacteria (AOB) and archaea (AOA), and their relative contribution to nitrification along a chronosequence of deglaciated forelands. The results showed that nitrification related gene abundance tended to increa...

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Bibliographic Details
Published in:Geoderma 2023-12, Vol.440, p.116711, Article 116711
Main Authors: Yu, Hanxia, Shen, Jupei, Zeng, Jun, Hu, Hang-Wei, Pendall, Elise, Xiao, Haoyan, Liu, Zikai, Zhang, Hui, Di, Hong J., Li, Zhongqin, He, Ji-Zheng
Format: Article
Language:English
Subjects:
Chronosequence
Comammox bacteria
Gene abundance
Glacier retreating
Nitrification
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Summary:This study investigated the abundance of comammox bacteria and canonical ammonia-oxidizing bacteria (AOB) and archaea (AOA), and their relative contribution to nitrification along a chronosequence of deglaciated forelands. The results showed that nitrification related gene abundance tended to increase with glacier retreat, with comammox bacteria and AOA appearing to be the most critical drivers for soil nitrification rates. These findings provide new evidence for the presence of comammox bacteria in glacier forelands and enhance our understanding of the niche differentiation of canonical nitrifier and comammox bacteria.
ISSN:0016-7061
1872-6259
DOI:10.1016/j.geoderma.2023.116711