Draft genome of heterotrophic bacteria
            <i>Sphingomonas</i>
            sp. 2R-10 isolated from water treatment plant in South Africa

Kritzinger, Rinaldo K; Molale-Tom, Lesego; Olanrewaju, Oluwaseyi Samuel; Bezuidenhout, Cornelius Carlos

doi:10.1128/mra.00437-23

Microbiol Resour Announc

2023

DOI: 10.1128/mra.00437-23

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Draft genome of heterotrophic bacteria Sphingomonas sp. 2R-10 isolated from water treatment plant in South Africa

Rinaldo K Kritzinger

Lesego Molale-Tom

Oluwaseyi Samuel Olanrewaju

et al.

Abstract: The availability of clean drinking water is crucial for human well-being, necessitating the monitoring and characterization of microorganisms in water sources. In this study, we present the draft genome of a heterotrophic bacterium, Sphingomonas sp. 2R-10, isolated from the untreated raw water of a drinking water source in South Africa.

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2024

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Genomic diversity, antibiotic resistance, and virulence in South African Enterococcus faecalis and Enterococcus lactis isolates

Olanrewaju,

Molale-Tom,

Bezuidenhout

2024

World J Microbiol Biotechnol

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This study presents the empirical findings of an in-depth genomic analysis of Enterococcus faecalis and Enterococcus lactis isolates from South Africa. It offers valuable insights into their genetic characteristics and their significant implications for public health. The study uncovers nuanced variations in the gene content of these isolates, despite their similar GC contents, providing a comprehensive view of the evolutionary diversity within the species. Genomic islands are identified, particularly in E. faecalis, emphasizing its propensity for horizontal gene transfer and genetic diversity, especially in terms of antibiotic resistance genes. Pangenome analysis reveals the existence of a core genome, accounting for a modest proportion of the total genes, with 2157 core genes, 1164 shell genes, and 4638 cloud genes out of 7959 genes in 52 South African E. faecalis genomes (2 from this study, 49 south Africa genomes downloaded from NCBI, and E. faecalis reference genome). Detecting large-scale genomic rearrangements, including chromosomal inversions, underscores the dynamic nature of bacterial genomes and their role in generating genetic diversity. The study uncovers an array of antibiotic resistance genes, with trimethoprim, tetracycline, glycopeptide, and multidrug resistance genes prevalent, raising concerns about the effectiveness of antibiotic treatment. Virulence gene profiling unveils a diverse repertoire of factors contributing to pathogenicity, encompassing adhesion, biofilm formation, stress resistance, and tissue damage. These empirical findings provide indispensable insights into these bacteria’s genomic dynamics, antibiotic resistance mechanisms, and virulence potential, underlining the pressing need to address antibiotic resistance and implement robust control measures.

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Genomic diversity, antibiotic resistance, and virulence in South African Enterococcus faecalis and Enterococcus lactis isolates

Olanrewaju,

Molale-Tom,

Bezuidenhout

2024

World J Microbiol Biotechnol

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show abstract

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Draft genome of heterotrophic bacteria Sphingomonas sp. 2R-10 isolated from water treatment plant in South Africa

Cited by 1 publication

References 12 publications

Genomic diversity, antibiotic resistance, and virulence in South African Enterococcus faecalis and Enterococcus lactis isolates

Genomic diversity, antibiotic resistance, and virulence in South African Enterococcus faecalis and Enterococcus lactis isolates

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