Genetic survey of indigenous microbial eukaryotic communities, mainly fungi, in sedimentary rock matrices of deep terrestrial subsurface

Yoshimoto Saitoh, Shin ichi Hirano, Toru Nagaoka, Yuki Amano

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Culture-independent molecular techniques enable us to analyze microbial communities in various environments. Molecular methods can detect numerous uncultivable prokaryotes in extreme environments including anaerobic, no-light, high-pressure, and high-temperature conditions. Recently, microbial eukaryotes were detected in the deep-sea environments, suggesting that microbial eukaryotes can adapt to a wider range of conditions than previously thought. At the Horonobe Underground Research Laboratory of Horonobe, Japan, we performed a culture-independent analysis of eukaryotes acquired at depths of −250 m and −270 m. Our results indicated that fungi are the dominant eukaryotic component in the deep sedimentary rocks of Horonobe. In the rock matrices, we detected a wide taxonomic range of fungi including Cryptomycota, Basidiomycota, and Ascomycota. This study is the first report on the diversity of eukaryotic species in deep terrestrial subsurface sedimentary rock matrices.
Original languageEnglish (US)
Pages (from-to)100042
JournalEcological Genetics and Genomics
Volume12
DOIs
StatePublished - Jun 6 2019

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