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primary topic: Study of methanol-induced phenotypic changes in a novel strain of Acinetobacter lwoffii.

Study of methanol-induced phenotypic changes in a novel strain of Acinetobacter lwoffii.
type: AcademicArticle
type: Article
abstract: A Gram-negative bacterial strain designated LS2 isolated from Lahaul-Spiti valley of North India was shown to produce pink pigment while utilizing methanol as sole source of carbon and energy. Interestingly, pigment production was inducible in nature since the organism did not produce any pigment when grown on other carbon sources. Based on phenotypic and phylogenetic characterization the non-pigmented methylotroph was identified as a novel strain of Acinetobacter lwoffii MTCC 8288 (DQ144736). By means of spectral and mass analyses the pigment was characterized as bacterioruberin-like carotenoid molecule. Here, the carotenoid pigment may form an important part of the antioxidant defense mechanism against oxidative stress imparted by methanol. The methanol utilization pathway in strain LS2 was deciphered by showing the presence of functional methanol dehydrogenase and formaldehyde dehydrogenase genes. In addition, to investigate methanol induced physiological changes, comparative fatty acid profile was analysed and distinctive qualitative as well as quantitative differences in fatty acid content were observed. Therefore, we suggest that strain LS2 exhibiting such unique phenotypic property should be assigned a taxonomic position other than the pigmented and non-pigmented methylotrophs.
date: 2007-11
volume: 188
issue: 5
is part of: Archives of microbiology
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
has document: Study of methanol-induced phenotypic changes in a novel strain of Acinetobacter lwoffii. (PDF)
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subject: QR Microbiology

Study of methanol-induced phenotypic changes in a novel strain of Acinetobacter lwoffii. (PDF)
type: Document

Springer Science
type: Organization

Archives of microbiology
type: Collection
issn: 03028933

R K Jain
type: Person
given name: R K
family name: Jain

Abhineet Goyal
type: Person
given name: Abhineet
family name: Goyal

Anuradha Ghosh
type: Person
given name: Anuradha
family name: Ghosh

Study of methanol-induced phenotypic changes in a novel strain of Acinetobacter lwoffii. (Indexer Terms)
type: Document
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primary topic: Study of methanol-induced phenotypic changes in a novel strain of Acinetobacter lwoffii.

QR Microbiology
type: Concept