Complete Genome Sequence of Rhodococcus qingshengii Strain PM1, Isolated from a Selenium-Rich Mine in China

Peng, Mu; Zhang, Dandan; Wang, Chao; Jiang, Zhihui; Huang, Xiufang; Zhou, Fangzhen; Huang, Fenglan; Wang, Zhiyong

doi:10.1128/mra.01007-22

Microbiol Resour Announc

2023

DOI: 10.1128/mra.01007-22

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Complete Genome Sequence of Rhodococcus qingshengii Strain PM1, Isolated from a Selenium-Rich Mine in China

Mu Peng

Dandan Zhang

Chao Wang³

et al.

Abstract: Rhodococcus qingshengii PM1 was isolated from selenium-rich carbonaceous mudstones in Enshi, Hubei, China. Here, we report the complete genome sequence of this strain, which was obtained by combining Illumina and Nanopore sequencing.

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2024

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Cited by 2 publications

References 11 publications

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Ecological features of trace elements tolerant microbes isolated from sewage sludge of urban wastewater treatment plant

Perelomov,

Rajput,

Gertsen

et al. 2024

Stress Biology

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Worldwide wastewater treatment plants generate enormous amounts of sewage sludge, and their further disposal depends on the treatment technologies applied and spontaneously occurring microbiological processes. From different ages urban sewage sludge, 12 strains of bacteria with simultaneous tolerance to two or more trace elements: Co, Ni, Cu, Zn, Cd and Pb at concentration of 3-5 mmol were isolated and identified by PCR of target genes and Sanger sequencing methods. The isloated metal(loids) tolerant strains belong to the species, i.e., Serratia fonticola, Rhodococcus qingshengii, Pseudomonas fragi, Pseudomonas extremaustralis, Pseudomonas cedrina, Stenotrophomonas maltophilia, Serratia liquefaciens and Citrobacter freundii. The ecological features of the isolated strains were studied. The optimal growth temperatures for most strains was 15–30°C at pH range of 5–9, although some strains grew at 7°C (Pseudomonas fragi SS0-4, Serratia fonticola SS0-9 and Serratia fonticola SS12-11). Satisfactory growth of two strains (Serratia fonticola SS0-1and Citrobacter freundii SS60-12) was noted in an acidic medium at pH 4. Most of the strains grew in the NaCl concentration range of 1–5%. The isolated bacteria resistant to high concentrations of trace elements can be used for the effective mineralization of sewage sludge and for the decontamination of wastewater.

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Ecological features of trace elements tolerant microbes isolated from sewage sludge of urban wastewater treatment plant

Perelomov,

Rajput,

Gertsen

et al. 2024

Stress Biology

View full text Add to dashboard Cite

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Bioremediation Potential of Rhodococcus qingshengii PM1 in Sodium Selenite-Contaminated Soil and Its Impact on Microbial Community Assembly

Peng,

Deng,

et al. 2024

Microorganisms

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Soil microbial communities are particularly sensitive to selenium contamination, which has seriously affected the stability of soil ecological environment and function. In this study, we applied high-throughput 16S rRNA gene sequencing to examine the effects of low and high doses of sodium selenite and the selenite-degrading bacterium, Rhodococcus qingshengii PM1, on soil bacterial community composition, diversity, and assembly processes under controlled laboratory conditions. Our results indicated that sodium selenite and strain PM1 were key predictors of bacterial community structure in selenium-contaminated soils. Exposure to sodium selenite initially led to reductions in microbial diversity and a shift in dominant bacterial groups, particularly an increase in Actinobacteria and a decrease in Acidobacteria. Sodium selenite significantly reduced microbial diversity and simplified co-occurrence networks, whereas inoculation with strain PM1 partially reversed these effects by enhancing community complexity. Ecological modeling, including the normalized stochasticity ratio (NST) and Sloan’s neutral community model (NCM), suggested that stochastic processes predominated in the assembly of bacterial communities under selenium stress. Null model analysis further revealed that heterogeneous selection and drift were primary drivers of community turnover, with PM1 inoculation promoting species dispersal and buffering against the negative impacts of selenium. These findings shed light on microbial community assembly mechanisms under selenium contamination and highlight the potential of strain PM1 for the bioremediation of selenium-affected soils.

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Complete Genome Sequence of Rhodococcus qingshengii Strain PM1, Isolated from a Selenium-Rich Mine in China

Abstract: Rhodococcus qingshengii PM1 was isolated from selenium-rich carbonaceous mudstones in Enshi, Hubei, China. Here, we report the complete genome sequence of this strain, which was obtained by combining Illumina and Nanopore sequencing.

Cited by 2 publications

References 11 publications

Ecological features of trace elements tolerant microbes isolated from sewage sludge of urban wastewater treatment plant

Ecological features of trace elements tolerant microbes isolated from sewage sludge of urban wastewater treatment plant

Bioremediation Potential of Rhodococcus qingshengii PM1 in Sodium Selenite-Contaminated Soil and Its Impact on Microbial Community Assembly

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