Geochemical and Microbiological Analysis of Sambe Hot Springs, Shimane Prefecture, Japan

Keiko Sasaki; Yoshitaka Uejima; Atsushi Sakamoto; Qianqian Yu; Junichiro Ishibashi; Naoko Okibe; Tsuyoshi Hirajima

doi:10.1111/rge.12002

Geochemical and Microbiological Analysis of Sambe Hot Springs, Shimane Prefecture, Japan

Keiko Sasaki, Yoshitaka Uejima, Atsushi Sakamoto, Qianqian Yu, Junichiro Ishibashi, Naoko Okibe, Tsuyoshi Hirajima

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Microbiological contribution to the formation of the manganese deposits in Sambe hot springs, Shimane, was investigated in combination with water chemistry, characterization of sediments and microbial community structure. Analysis of bacterial and fungal community structure based on DNA extracted from a Mn-oxidizing enrichment culture indicated close matches with Pseudomonas putida, Phoma sp. and Plectosphaerella cucumerina, all Mn-oxidizing microorganisms. These sediments were poorly crystalline and formed at neutral pH values, which is characteristic of biogenic precipitates. The EPMA results demonstrated a positive correlation between Mn and Ba contents in well-crystalline Mn oxide grains. Substantial Ba contents were observed inside Mn oxide grains. These findings indicated that Ba contents in sediments are influenced by not only aqueous Ba²⁺ concentrations but also crystallinity of biogenic birnessite. Barium would be incorporated in birnessite during biomineralization.

Original language	English
Pages (from-to)	155-165
Number of pages	11
Journal	Resource Geology
Volume	63
Issue number	2
DOIs	https://doi.org/10.1111/rge.12002
Publication status	Published - Apr 2013

All Science Journal Classification (ASJC) codes

Geology
Geochemistry and Petrology

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10.1111/rge.12002

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title = "Geochemical and Microbiological Analysis of Sambe Hot Springs, Shimane Prefecture, Japan",

abstract = "Microbiological contribution to the formation of the manganese deposits in Sambe hot springs, Shimane, was investigated in combination with water chemistry, characterization of sediments and microbial community structure. Analysis of bacterial and fungal community structure based on DNA extracted from a Mn-oxidizing enrichment culture indicated close matches with Pseudomonas putida, Phoma sp. and Plectosphaerella cucumerina, all Mn-oxidizing microorganisms. These sediments were poorly crystalline and formed at neutral pH values, which is characteristic of biogenic precipitates. The EPMA results demonstrated a positive correlation between Mn and Ba contents in well-crystalline Mn oxide grains. Substantial Ba contents were observed inside Mn oxide grains. These findings indicated that Ba contents in sediments are influenced by not only aqueous Ba2+ concentrations but also crystallinity of biogenic birnessite. Barium would be incorporated in birnessite during biomineralization.",

author = "Keiko Sasaki and Yoshitaka Uejima and Atsushi Sakamoto and Qianqian Yu and Junichiro Ishibashi and Naoko Okibe and Tsuyoshi Hirajima",

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T1 - Geochemical and Microbiological Analysis of Sambe Hot Springs, Shimane Prefecture, Japan

AU - Sasaki, Keiko

AU - Uejima, Yoshitaka

AU - Sakamoto, Atsushi

AU - Yu, Qianqian

AU - Ishibashi, Junichiro

AU - Okibe, Naoko

AU - Hirajima, Tsuyoshi

PY - 2013/4

Y1 - 2013/4

N2 - Microbiological contribution to the formation of the manganese deposits in Sambe hot springs, Shimane, was investigated in combination with water chemistry, characterization of sediments and microbial community structure. Analysis of bacterial and fungal community structure based on DNA extracted from a Mn-oxidizing enrichment culture indicated close matches with Pseudomonas putida, Phoma sp. and Plectosphaerella cucumerina, all Mn-oxidizing microorganisms. These sediments were poorly crystalline and formed at neutral pH values, which is characteristic of biogenic precipitates. The EPMA results demonstrated a positive correlation between Mn and Ba contents in well-crystalline Mn oxide grains. Substantial Ba contents were observed inside Mn oxide grains. These findings indicated that Ba contents in sediments are influenced by not only aqueous Ba2+ concentrations but also crystallinity of biogenic birnessite. Barium would be incorporated in birnessite during biomineralization.

AB - Microbiological contribution to the formation of the manganese deposits in Sambe hot springs, Shimane, was investigated in combination with water chemistry, characterization of sediments and microbial community structure. Analysis of bacterial and fungal community structure based on DNA extracted from a Mn-oxidizing enrichment culture indicated close matches with Pseudomonas putida, Phoma sp. and Plectosphaerella cucumerina, all Mn-oxidizing microorganisms. These sediments were poorly crystalline and formed at neutral pH values, which is characteristic of biogenic precipitates. The EPMA results demonstrated a positive correlation between Mn and Ba contents in well-crystalline Mn oxide grains. Substantial Ba contents were observed inside Mn oxide grains. These findings indicated that Ba contents in sediments are influenced by not only aqueous Ba2+ concentrations but also crystallinity of biogenic birnessite. Barium would be incorporated in birnessite during biomineralization.

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Geochemical and Microbiological Analysis of Sambe Hot Springs, Shimane Prefecture, Japan

Abstract

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