Arsenic and chromium resistance mechanisms in the Micrococcus luteus group

Arroyo-Herrera, Ivan; Román‐Ponce, Brenda; Bustamante-Brito, Rafael; Guevara-Luna, Joseph; Tapia-García, Erika Yanet; Larios-Serrato, Violeta; ZHANG, Nan Nan; SANTOS, Paulina ESTRADA-DE LOS; WANG, En Tao; Vásquez-Murrieta, María Soledad

doi:10.1016/j.pedsph.2022.07.013

Cited by 2 publications

(2 citation statements)

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“…4). The difference in the number of genes is due to the possible function that these micro-organisms have in their ecological niche or the selection pressure exerted by the environment itself, causing them to develop adaptation mechanisms (loss or gain of genes) [47,48].…”

Section: Genomic Analysismentioning

confidence: 99%

“…imperiale DSM 20530 T were the only strains that presented the gene encoding zinc-binding oxidoreductase, but they did not present the czcA gene related to resistance to Cd 2+ , Co 2+ and Zn 2+ (). The difference in the number of genes is due to the possible function that these micro-organisms have in their ecological niche or the selection pressure exerted by the environment itself, causing them to develop adaptation mechanisms (loss or gain of genes) [47, 48].…”

Section: Genomic Analysismentioning

confidence: 99%

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Microbacterium plantarum sp. nov. and Microbacterium thalli sp. nov., two endophytic metal-resistant bacteria isolated from Sphaeralcea angustifolia (Cav.) G. Don and Prosopis laevigata (Humb. et Bonpl. ex Willd) M.C. Johnston

Arroyo-Herrera,

Román-Ponce,

Bustamante-Brito

et al. 2023

International Journal of Systematic and Evolutionary Microbiology

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Four Gram-positive, aerobic, catalase- and oxidase-negative, rod-shaped, motile endophytic bacterial strains, designated NM3R9T, NE1TT3, NE2TL11 and NE2HP2T, were isolated from the inner tissues (leaf and stem) of Sphaeralcea angustifolia and roots of Prosopis laevigata. They were characterized using a polyphasic approach, which revealed that they represent two novel Microbacterium species. Phylogenetic analysis based on 16S rRNA gene sequencing showed that the species closest to NE2HP2T was Microbacterium arborescens DSM 20754T (99.6 %) and that closest to NM3R9T, NE2TL11 and NE2TT3 was Microbacterium oleivorans NBRC 103075T (97.4 %). The whole-genome average nucleotide identity value between strain NM3R9T and Microbacterium imperiale DSM 20530T was 90.91 %, and that between strain NE2HP2T and M. arborecens DSM 20754T was 91.03 %. Digital DNA–DNA hybridization showed values of less than 70 % with the type strains of related species. The polar lipids present in both strains included diphosphatidylglycerol, phosphatidylglycerol, glycolipids and unidentified lipids, whereas the major fatty acids included anteiso-C15 : 0, anteiso-C17 : 0, iso-C16 : 0 and C16 : 0. Whole-cell sugars included mannose, rhamnose and galactose. Strains NM3R9T and NE2HP2T showed physiological characteristics different from those present in closely related Microbacterium species. According to the taxonomic analysis, both strains belong to two novel species. The name Microbacterium plantarum sp. nov. is proposed for strain NE2HP2T (=LMG 30875T=CCBAU 101117T) and Microbacterium thalli sp. nov. for strains NM3R9T (=LMG 30873T=CCBAU 101116T), NE1TT3 (=CCBAU 101114) and NE2TL11 (=CCBAU 101115).

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Section: Genomic Analysismentioning

confidence: 99%

Section: Genomic Analysismentioning

confidence: 99%