Control of magnetite nanocrystal morphology in magnetotactic bacteria by regulation of mms7 gene expression

Ayana Yamagishi, Masayoshi Tanaka, Jos J.M. Lenders, Jarla Thiesbrummel, Nico A.J.M. Sommerdijk, Tadashi Matsunaga, Atsushi Arakaki*

*この研究の対応する著者

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Living organisms can produce inorganic materials with unique structure and properties. The biomineralization process is of great interest as it forms a source of inspiration for the development of methods for production of diverse inorganic materials under mild conditions. Nonetheless, regulation of biomineralization is still a challenging task. Magnetotactic bacteria produce chains of a prokaryotic organelle comprising a membrane-enveloped single-crystal magnetite with species-specific morphology. Here, we describe regulation of magnetite biomineralization through controlled expression of the mms7 gene, which plays key roles in the control of crystal growth and morphology of magnetite crystals in magnetotactic bacteria. Regulation of the expression level of Mms7 in bacterial cells enables switching of the crystal shape from dumbbell-like to spherical. The successful regulation of magnetite biomineralization opens the door to production of magnetite nanocrystals of desired size and morphology.

本文言語English
論文番号29785
ジャーナルScientific Reports
6
DOI
出版ステータスPublished - 2016 7 15
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ASJC Scopus subject areas

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