Microbes and Environments
Online ISSN : 1347-4405
Print ISSN : 1342-6311
ISSN-L : 1342-6311
Short Communication
Group-specific Quantification of mcrA genes of Methanogenic Archaea and “Candidatus Methanoperedens” by Digital PCR
Takeshi Watanabe Atsuya EndoRio HamadaRina ShinjoSusumu Asakawa
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2025 Volume 40 Issue 2 Article ID: ME24097

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Abstract

Digital PCR is a technique that quantifies target genes based on the absence or presence of the targets in PCR amplicons. The present study exami­ned group-specific probes for the quantification of mcrA genes in six methanogenic archaeal groups and “Candidatus Methanoperedens” by digital PCR with the universal primers ML-f and ML-r. A digital PCR ana­lysis of paddy field soil detected all the targets, with the dominant and minor groups being Methanomicrobiales and Methanobrevibacter spp., respectively (107 and 104 copies [g dry soil]–1). This method has the potential to reveal the dynamics of specific methanogenic archaeal groups in the environment.

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© 2025 by Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles.

This article is licensed under a Creative Commons [Attribution 4.0 International] license.
https://creativecommons.org/licenses/by/4.0/
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