Desta M, Wang W, Zhang L, Xu P, Tang H. Isolation, Characterization, and Genomic Analysis of
Pseudomonas sp. Strain SMT-1, an Efficient Fluorene-Degrading Bacterium.
Evol Bioinform Online 2019;
15:1176934319843518. [PMID:
31019363 PMCID:
PMC6466462 DOI:
10.1177/1176934319843518]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 03/21/2019] [Indexed: 11/28/2022] Open
Abstract
Comprehensive study of novel microbial organisms capable of degrading fluorene is
crucial to develop essential strategies for further application on enhanced
bioremediation technologies. Many fluorene-degrading bacteria have been studied;
however, little information about the genome sequences of these organisms, which
would facilitate investigation of the molecular mechanisms of fluorene
degradation, is available. In this study, a bacterial strain designated SMT-1,
which uses fluorene as its sole carbon source, was isolated from Laogang
landfill in Shanghai, People’s Republic of China, and identified as a
Pseudomonas sp., based on 16S rRNA gene sequence analysis.
Maximum growth and degrading activity of strain SMT-1 were observed at 30°C, pH
7.0 and 200 r/min in mineral salt medium containing 0.4 mm fluorene. We obtained
a draft genome sequence of strain SMT-1 to gain insight into the genetic
mechanisms for the degradation of aromatic compounds. Sequences greater than
1 kb in length were obtained by Illumina sequencing; strain SMT-1 was found to
contain 5542 predicted genes. This working draft genome comprises 68 contigs and
DNA scaffolds and has a total size of 6 108 237 bp and a calculated G + C
content of 61.59%. Amino acid metabolism clusters were enriched in
SMT-1 genes annotation, with the highest abundant observed
for the “ABC transporters” subcategories, followed by transcription, energy
production and conversion, and inorganic ion transport and metabolism. The
genomic information for SMT-1 provides a useful resource for elucidating the
molecular mechanism of fluorene catabolism.
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