Abstract
Leptothrix species in aquatic environments produce uniquely shaped hollow microtubules composed of aquatic inorganic and bacterium-derived organic hybrids. Our group termed this biologically derived iron oxide as "biogenous iron oxide (BIOX)". The artificial synthesis of most industrial iron oxides requires massive energy and is costly while BIOX from natural environments is energy and cost effective. The BIOX microtubules could potentially be used as novel industrial functional resources for catalysts, adsorbents and pigments, among others if effective and efficient applications are developed. For these purposes, a reproducible system to regulate bacteria and their BIOX productivity must be established to supply a sufficient amount of BIOX upon industrial demand. However, the bacterial species and the mechanism of BIOX microtubule formation are currently poorly understood. In this study, a novel Leptothrix sp. strain designated OUMS1 was successfully isolated from ocherous deposits in groundwater by testing various culture media and conditions. Morphological and physiological characters and elemental composition were compared with those of the known strain L. cholodnii SP-6 and the differences between these two strains were shown. The successful isolation of OUMS1 led us to establish a basic system to accumulate biological knowledge of Leptothrix and to promote the understanding of the mechanism of microtubule formation. Additional geochemical studies of the OUMS1-related microstructures are expected provide an attractive approach to study the broad industrial application of bacteria-derived iron oxides.
| Original language | English |
|---|---|
| Pages (from-to) | 173-180 |
| Number of pages | 8 |
| Journal | Current Microbiology |
| Volume | 63 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Aug 2011 |
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ASJC Scopus subject areas
- Microbiology
- Applied Microbiology and Biotechnology
Cite this
Isolation of a leptothrix strain, OUMS1, from ocherous deposits in groundwater. / Sawayama, Michinori; Suzuki, Tomoko; Hashimoto, Hideki; Kasai, Tomonari; Furutani, Mitsuaki; Miyata, Naoyuki; Kunoh, Hitoshi; Takada, Jun.
In: Current Microbiology, Vol. 63, No. 2, 08.2011, p. 173-180.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Isolation of a leptothrix strain, OUMS1, from ocherous deposits in groundwater
AU - Sawayama, Michinori
AU - Suzuki, Tomoko
AU - Hashimoto, Hideki
AU - Kasai, Tomonari
AU - Furutani, Mitsuaki
AU - Miyata, Naoyuki
AU - Kunoh, Hitoshi
AU - Takada, Jun
PY - 2011/8
Y1 - 2011/8
N2 - Leptothrix species in aquatic environments produce uniquely shaped hollow microtubules composed of aquatic inorganic and bacterium-derived organic hybrids. Our group termed this biologically derived iron oxide as "biogenous iron oxide (BIOX)". The artificial synthesis of most industrial iron oxides requires massive energy and is costly while BIOX from natural environments is energy and cost effective. The BIOX microtubules could potentially be used as novel industrial functional resources for catalysts, adsorbents and pigments, among others if effective and efficient applications are developed. For these purposes, a reproducible system to regulate bacteria and their BIOX productivity must be established to supply a sufficient amount of BIOX upon industrial demand. However, the bacterial species and the mechanism of BIOX microtubule formation are currently poorly understood. In this study, a novel Leptothrix sp. strain designated OUMS1 was successfully isolated from ocherous deposits in groundwater by testing various culture media and conditions. Morphological and physiological characters and elemental composition were compared with those of the known strain L. cholodnii SP-6 and the differences between these two strains were shown. The successful isolation of OUMS1 led us to establish a basic system to accumulate biological knowledge of Leptothrix and to promote the understanding of the mechanism of microtubule formation. Additional geochemical studies of the OUMS1-related microstructures are expected provide an attractive approach to study the broad industrial application of bacteria-derived iron oxides.
AB - Leptothrix species in aquatic environments produce uniquely shaped hollow microtubules composed of aquatic inorganic and bacterium-derived organic hybrids. Our group termed this biologically derived iron oxide as "biogenous iron oxide (BIOX)". The artificial synthesis of most industrial iron oxides requires massive energy and is costly while BIOX from natural environments is energy and cost effective. The BIOX microtubules could potentially be used as novel industrial functional resources for catalysts, adsorbents and pigments, among others if effective and efficient applications are developed. For these purposes, a reproducible system to regulate bacteria and their BIOX productivity must be established to supply a sufficient amount of BIOX upon industrial demand. However, the bacterial species and the mechanism of BIOX microtubule formation are currently poorly understood. In this study, a novel Leptothrix sp. strain designated OUMS1 was successfully isolated from ocherous deposits in groundwater by testing various culture media and conditions. Morphological and physiological characters and elemental composition were compared with those of the known strain L. cholodnii SP-6 and the differences between these two strains were shown. The successful isolation of OUMS1 led us to establish a basic system to accumulate biological knowledge of Leptothrix and to promote the understanding of the mechanism of microtubule formation. Additional geochemical studies of the OUMS1-related microstructures are expected provide an attractive approach to study the broad industrial application of bacteria-derived iron oxides.
UR - http://www.scopus.com/inward/record.url?scp=80052538250&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052538250&partnerID=8YFLogxK
U2 - 10.1007/s00284-011-9957-6
DO - 10.1007/s00284-011-9957-6
M3 - Article
C2 - 21643851
AN - SCOPUS:80052538250
VL - 63
SP - 173
EP - 180
JO - Current Microbiology
JF - Current Microbiology
SN - 0343-8651
IS - 2
ER -