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

Abstract

A Gram-stain-positive, aerobic, non-motile, coccoid, arsenic-resistant actinobacterial strain, designated CM1E1, was isolated from the lateral root tissue of grown on a mine tailing in San Luis Potosi, Mexico. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CM1E1 was clustered closely with species of the genus and showed the highest sequence similarity of 98.7 % to TA68. The DNA G+C content of strain CM1E1 was 74.5 mol% (). The major fatty acids were anteiso-C, anteiso-C and iso-C. The peptidoglycan of the cell wall contained lysine and alanine. The major respiratory quinones were MK-7(H) and MK-8(H). On the basis of the phenotypic characterization, phylogenetic relationships and chemotaxonomic analyses, strain CM1E1 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is CM1E1 ( = CCBAU 101092 = HAMBI 3625 = LMG 28671).

Partial rpoB Gene Sequencing Identification and Probiotic Potential of Floricoccus penangensis ML061-4 Isolated from Assam Tea (Camellia sinensis var. assamica)

“…All bacterial isolates were member of Actinobacteria and Firmicutes phyla and were classified within 6 genera including Bacillus , Floricoccus , Kocuria , Lysinibacillus , Micrococcus and Staphylococcus . These bacteria have been widely found in nature which can be contaminated onto surface of leaves and stems 18–20 . B. altitudinis .…”

An Endophytic Bacterial Consortium modulates multiple strategies to improve Arsenic Phytoremediation Efficacy in Solanum nigrum

“…Although this As-level was much lower than that reported in Iran by Karimi et al . 24 or in the mine tailings of Mexico 28 the amount was still 2500-fold higher than the acceptable limits and was much more relevant to the contamination level that poses threat to the human populace. S .…”

“…cloacae LSJC7 shows a chromosomally coded arsenic resistance (ars) operon required for detoxification of arsenate, arsenite and antimonite 32 . Recently Kocuria arsenatis , a novel strain of As-tolerant endophytic bacteria, was isolated from Prosopis laegivata - a plant collected from an As-contaminated mine tailings 28 . Notably, K .…”

Kinetics of Halophilic Enzymes

“…Stems of Tamarix chinensis [113] Labrenzia suaedae YC6927 T Root of Sauceda maritime [114] Kocuria arsenatis CM1E1 T Prosopis laevigata [115] Proteus sp. NA6 Textile effluent drain [116] Candidatus Desulfonatronobulbus propionicus Hypersaline soda lakes [117] Novosphingobium pokkalii L3E4 T Rhizosphere of salinetolerant pokkali rice [118] Marinobacter aquaticus M6-53 T Marine saltern located in Huelva, Spain [119] Agrobacterium salinitolerans YIC 5082 T…”