Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 64, Issue -, Pages 254-259Publisher
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.055319-0
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Funding
- Department of Biotechnology (DBT)
- National Bureau of Agriculturally Important Micro-organisms (NBAIM, ICAR)
- DU/DST-PURSE Grant, Government of India
- Department of Biotechnology
- Council for Scientific and Industrial Research (CSIR)
- National Bureau of Agriculturally Important Micro-organisms
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An orange-pigmented bacterial strain, designated LP100(T), was isolated from hexachlorocyclohexane-contaminated soil (Lucknow, India). A neighbour-joining tree based on 16S rRNA gene sequences showed that strain LP100(T) occupied a distinct phylogenetic position in the Pontibacter species cluster, showing highest similarity with Pontibacter lucknowensis DM9(T) (97.4%). Levels of similarity to strains of other Pontibacter species ranged between 94.0 and 96.8%. Strain LP100(T) contained MK-7 as the predominant menaquinone and sym-homospermidine was the major polyamine in the cell. The major cellular fatty acids of strain LP100(T) were anteiso-C-17:0 A, iso-C-15:0 and iso-C-18:1 H. The polar lipid profile of strain LP100(T) showed the presence of phosphatidylethanolamine, an unidentified aminophospholipid, three unknown aminolipids and two unknown polar lipids. The G+C content of strain LP100(T) was 58.2 mol%. The results of DNA-DNA hybridization, biochemical and physiological tests clearly distinguish the novel strain from closely related species of the genus Pontibacter. Therefore, strain LP100(T) represents a novel species of the genus Pontibacter for which the name Pontibacter indicus is proposed. The type strain is LP100(T) (=CCM8435(T)=MCC2027(T)).
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