Morphological differentiation observed in manganese oxidizing bacterial colonies

Gopal, Judy ; Muraleedharan, P. ; George, R. P. ; Sarvamangala, H. ; Kalaichelvan, P. T. ; Khatak, H. S. ; Natarajan, K. A. (2007) Morphological differentiation observed in manganese oxidizing bacterial colonies National Academy Science Letters, 30 (11-12). pp. 371-375. ISSN 0250-541X

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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:Article
Source:Copyright of this article belongs to National Academy of Sciences, India.
Keywords:Manganese Oxidizing Bacteria; Pseudomonas; Bacillus; Marine Biofilm; Titanium
ID Code:66453
Deposited On:22 Oct 2011 11:43
Last Modified:22 Oct 2011 11:43

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