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Morphological differentiation observed in manganese oxidizing bacterial colonies

Gopal, Judy and Muraleedharan, P and George, RP and Sarvamangala, H and Kalaichelvan, PT and Khatak, HS and Natarajan, KA (2007) Morphological differentiation observed in manganese oxidizing bacterial colonies. In: National Academy Science Letters (India), 30 (11-12). pp. 371-375.

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Bacteria play a vital role in bringing about Mn(II) oxidation in the natural environment. A study was conducted to identify the potential threat offered by these bacteria in bringing about biomineralisation of manganese dioxide on titanium surfaces exposed to seawater. During the study it was observed that the bacteria such as Pseudomonas and Bacillus formed brown colonies on agar plates amended with Mn2+ indicating their ability to oxidize Mn(II). These colonies showed distinct morphologies when grown on plates containing Mn(II) while they formed normal colonies in the absence of Mn.(II).Hence it is possible that these morphologically distinct structures produced by the bacterial colonies assist these bacteria to perform this function of Mn-oxidation.

Item Type: Journal Article
Publication: National Academy Science Letters (India)
Publisher: Natlacad Sciences India
Additional Information: Copyright of this article published by Natlacad Sciences India.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 11 Jun 2010 05:02
Last Modified: 11 Jun 2010 05:02
URI: http://eprints.iisc.ac.in/id/eprint/26736

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