Publications by authors named "Vasudevan P Ajithkumar"

A strain (KREDT) that formed endospores and produced the pigment prodigiosin was isolated from activated sludge. The presence of spores in cells of strain KREDT was evident upon electron microscopy examination, heat treatment and the detection of dipicolinic acid in the cells. Biochemical characteristics, and 16S rDNA sequence and DNA-DNA homology data identified strain KREDT as Serratia marcescens.

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Novel Pseudomonas strains INA04, INA05, and INA06, were isolated from activated sludge. Strain INA06 was found to degrade long chain alkylphenols such as 4-n-amylphenol and 4-n-hexylphenol as the sole source of carbon, apart from co-metabolic degradation of 4-n-nonylphenol in the presence of phenol, while INA04 and INA05 could grow on phenol, but could not grow well on alkylphenols. Induction studies on strain INA06 revealed a broad substrate-specific phenol hydroxylase, for the metabolism of phenol and alkylphenols, inducible with phenol or para-substituted alkylphenol.

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A novel filamentous Bacillus strain, NAF001T, was reported previously that produces endospores and spore-like resting cells; the latter outgrow by budding. Phylogenetic analysis based on 16S rDNA gene sequences reported in the same paper speculated on the proposal of a novel species for this isolate. This communication describes the DNA-DNA relatedness of strain NAF001T to various members of the genus Bacillus and its whole-cell fatty acid and quinone profiles, in order to authenticate the creation of a novel species, for which the name Bacillus funiculus sp.

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A novel filamentous bacterium, strain NAF001, was isolated from suspended water of a domestic wastewater treatment tank. It formed an extremely long filamentous trichome and produced endospores. It formed spore-like resting cells (SLRCs) which were heat-resistant.

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