Catalytic Biomineralization of Fluorescent Calcite by the Thermophilic Bacterium Geobacillus thermoglucosidasius | Zendy

Naoto Yoshida | Zendy; Eiji Higashimura | Zendy; Yuichi Saeki | Zendy

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Catalytic Biomineralization of Fluorescent Calcite by the Thermophilic Bacterium Geobacillus thermoglucosidasius

Author(s) -

Naoto Yoshida,

Eiji Higashimura,

Yuichi Saeki

Publication year - 2010

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.01767-10

Subject(s) - calcite , thermophile , biomineralization , magnesium , calcium carbonate , fluorescence , calcium , chemistry , geobacillus stearothermophilus , sodium , nuclear chemistry , inorganic chemistry , chemical engineering , mineralogy , biochemistry , organic chemistry , enzyme , physics , quantum mechanics , engineering

The thermophilic Geobacillus bacterium catalyzed the formation of 100-μm hexagonal crystals at 60°C in a hydrogel containing sodium acetate, calcium chloride, and magnesium sulfate. Under fluorescence microscopy, crystals fluoresced upon excitation at 365 ± 5, 480 ± 20, or 545 ± 15 nm. X-ray diffraction indicated that the crystals were magnesium-calcite in calcite-type calcium carbonate.

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