Distribution of Microorganisms in the Subsurface of the Manus Basin Hydrothermal Vent Field in Papua New Guinea

Author:

Kimura Hiroyuki1,Asada Ryuji2,Masta Andrew3,Naganuma Takeshi1

Affiliation:

1. School of Biosphere Sciences, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528

2. Department of Earth Sciences, Kanazawa University, Kakuma, Kanazawa, 920-1192, Japan

3. School of Medicine and Health Sciences, University of Papua New Guinea, Boroko, NCD 111, Papua New Guinea

Abstract

ABSTRACT The distribution of microorganisms in the subsurfaces of hydrothermal vents was investigated by using subvent rock core samples. Microbial cells and ATP were detected from cores taken at depths of less than 99.4 and 44.8 m below the seafloor (mbsf), respectively. Cores from various depths were incubated anaerobically with a heterotrophic medium. Growth at 60 and 90°C was ascribed to a Geobacillus sp. in the 448.6- to 99.4-mbsf cores and a Deinococcus sp. in the 64.8- to 128.9-mbsf cores, respectively, based on the 16S ribosomal DNA analysis.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference31 articles.

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