Kocuria arsenatis sp. Nov., An arsenic-resistant endophytic actinobacterium associated with Prosopis laegivata grown on high-arsenic-polluted mine tailing

Brenda Román-Ponce, Dan Wang, María Soledad Vásquez-Murrieta, Wen Feng Chen, Paulina Estrada De los Santos, Xin Hua Sui, En Tao Wang

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

A Gram-stain-positive, aerobic, non-motile, coccoid, arsenic-resistant actinobacterial strain, designated CM1E1T, was isolated from the lateral root tissue of Prosopis laegivata grown on a mine tailing in San Luis Potosi, Mexico. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CM1E1T was clustered closely with species of the genus Kocuria, and showed the highest sequence similarity of 98.7 % to Kocuria rhizophila TA68T. The DNA G+C content of strain CM1E1T was 74.5 mol% (Tm). The major fatty acids were anteiso-C15: 0, anteiso-C17: 0 and iso-C15: 0. The peptidoglycan of the cell wall contained lysine and alanine. The major respiratory quinones were MK-7(H2) and MK-8(H2). On the basis of the phenotypic characterization, phylogenetic relationships and chemotaxonomic analyses, strain CM1E1T represents a novel species of the genus Kocuria, for which the name Kocuria arsenatis sp. nov. is proposed. The type strain is CM1E1T (=CCBAU 101092T=HAMBI 3625T=LMG 28671T).

Original languageEnglish
Article number000830
Pages (from-to)1027-1033
Number of pages7
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume66
Issue number2
DOIs
StatePublished - Feb 2016

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