ArticleBMC genomics2024
Genome analysis of Shewanella putrefaciens 4H revealing the potential mechanisms for the chromium remediation.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Molecular basis of heavy metal tolerance in the marine actinomycete Nocardiopsis dassonvillei NCIM 5124.World journal of microbiology & biotechnology · 2026Article
- Biosorption of Hexavalent Chromium byIndian journal of microbiology · 2025Article
- Removal of hexavalent chromium by a microbial mat from a mining site under anaerobic conditions.Frontiers in bioengineering and biotechnology · 2025Article
- Characterization and Molecular Insights of a Chromium-Reducing BacteriumMicroorganisms · 2024Article
- The viable but non-culturable (VBNC) status of Shewanella putrefaciens (S. putrefaciens) with thermosonication (TS) treatment.Ultrasonics sonochemistry · 2024Article
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Authors and funding
6 authors.
Funding
Abstract
Microbial remediation of heavy metal polluted environment is ecofriendly and cost effective. Therefore, in the present study, Shewanella putrefaciens stain 4H was previously isolated by our group from the activated sludge of secondary sedimentation tank in a dyeing wastewater treatment plant. The bacterium was able to reduce chromate effectively. The strains showed significant ability to reduce Cr(VI) in the pH range of 8.0 to 10.0 (optimum pH 9.0) and 25-42 ℃ (optimum 30 ℃) and were able to reduce 300 mg/L of Cr(VI) in 72 h under parthenogenetic anaerobic conditions. In this paper, the complete genome sequence was obtained by Nanopore sequencing technology and analyzed chromium metabolism-related genes by comparative genomics The genomic sequence of S. putrefaciens 4H has a length of 4,631,110 bp with a G + C content of 44.66% and contains 4015 protein-coding genes and 3223, 2414, 2343 genes were correspondingly annotated into the COG, KEGG, and GO databases. The qRT-PCR analysis showed that the expression of chrA, mtrC, and undA genes was up-regulated under Cr(VI) stress. This study explores the Chromium Metabolism-Related Genes of S. putrefaciens 4H and will help to deepen our understanding of the mechanisms of Cr(VI) tolerance and reduction in this strain, thus contributing to the better application of S. putrefaciens 4H in the field of remediation of chromium-contaminated environments.
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