RRC ID 2662
Author Kubota M, Kawahara K, Sekiya K, Uchida T, Hattori Y, Futamata H, Hiraishi A.
Title Nocardioides aromaticivorans sp. nov., a dibenzofuran-degrading bacterium isolated from dioxin-polluted environments.
Journal Syst Appl Microbiol
Abstract Seven strains of dibenzofuran (DF)-degrading bacteria isolated from dioxin-polluted environments were characterized. These isolates were able to grow with dibenzofuran as the sole carbon and energy source. During the growth with dibenzofuran, they produced a soluble yellow metabolite that exhibited a unique pH-dependent shift of absorption maxima. Dibenzo-p-dioxin and biphenyl were also degraded with pigment production. The isolates were strictly aerobic and chemoorganotrophic and had gram-positive, nonmotile, rod-shaped cells. Chemotaxonomic analyses showed that cells contained L,L-diaminopimeric acid in the peptidoglycan, branched-chain fatty acids as major fatty acids, and menaquinone MK-8(H4) as the sole respiratory quinone. The G + C content of the DNA of the isolates ranged from 72.0 to 72.4 mol%. The 16S rRNA gene sequences of the isolates were very similar to each other (> or = 99.8%). The phylogenetic analysis showed that the isolates formed a cluster with species of the genus Nocardioides with Nocardioides simplex and Nocardioides nitrophenolicus as their nearest neighbors. DNA-DNA hybridization studies showed that the isolates showed a hybridization level of less than 55% to any tested species of the genus Nocardioides. Based on these data, Nocardioides aromaticivorans sp. nov. is proposed for the new DF-degrading isolates. The type strain is strain H-1 (IAM 14992, JCM 11674, DSM 15131).
Volume 28(2)
Pages 165-74
Published 2005-3-1
DOI 10.1016/j.syapm.2004.10.002
PII S0723-2020(04)00025-6
PMID 15830809
MeSH Actinomycetales / chemistry Actinomycetales / classification* Actinomycetales / genetics Actinomycetales / isolation & purification Bacterial Typing Techniques Benzofurans / metabolism* DNA, Bacterial / analysis DNA, Ribosomal / analysis Dioxins / metabolism* Genes, rRNA Geologic Sediments / microbiology* Molecular Sequence Data Nucleic Acid Hybridization Phenotype Phylogeny RNA, Ribosomal, 16S / genetics Rivers / microbiology* Sequence Analysis, DNA Water Pollutants, Chemical / metabolism*
IF 3.224
Times Cited 40
WOS Category BIOTECHNOLOGY & APPLIED MICROBIOLOGY MICROBIOLOGY
Resource
Pathogenic microorganisms JCM 11674?