Luteimonas deserti sp. nov., a novel strain isolated from desert soil

Abstract

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, named SJ-16T, was isolated from desert soil collected in Inner Mongolia, northern PR China. Strain SJ-16T grew at pH 6.0–11.0 (optimum, pH 8.0–9.0), 4–40 °C (optimum, 30–35 °C) and in the presence of 0–8 % (w/v) NaCl (optimum, 0–2 %). The strain was negative for catalase and positive for oxidase. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain SJ-16T clustered with Luteimonas chenhongjianii 100111T and Luteimonas terrae THG-MD21T, and had 98.8, 98.6, 98.3 and <97.9 % of 16S rRNA gene sequence similarity to strains L. chenhongjianii 100111T, L. terrae THG-MD21T, L. aestuarii B9T and all other type strains of the genus Luteimonas , respectively. The major cellular fatty acids were iso-C15 : 0, iso-C16 : 0, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c) and summed feature 9 (C16 : 0 10-methyl and/or iso-C17 : 1 ω9c). Diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine were the major polar lipids, and ubiquinone-8 was the only respiratory quinone. The genomic DNA G+C content was 69.3 mol%. The digital DNA–DNA hybridization and average nucleotide identity values of strain SJ-16T to L. chenhongjianii 100111T, L. terrae THG-MD21T, L. rhizosphaerae 4-12T and L. aestuarii B9T were 36.9, 37.5, 24.0 and 21.1 %, and 80.9, 80.6, 80.7 and 76.3 %, respectively. Based on phenotypic, physiological and phylogenetic results, strain SJ-16T represents a novel species of the genus Luteimonas , for which the name Luteimonas deserti is proposed. The type strain is SJ-16T (=CGMCC 1.17694T=KCTC 82207T).

Three novel Luteimonas species from a root and rhizosphere soil of Kalidium cuspidatum: Luteimonas endophytica sp. nov., Luteimonas rhizosphaericola sp. nov. and Luteimonas kalidii sp. nov.

“…The Luteimonas strains usually are aerobic, heterotrophic, Gram-stain-negative, yellow-coloured bacteria with summed feature 9 and iso-C 15 : 0 as the predominant fatty acids, ubiquinone-8 (Q-8) as the major respiratory quinone, and genomic DNA G+C contents of 64.3-73.4 mol% [4]. The Luteimonas strains were isolated from various habitants, such as sea water [5], soil [4,[6][7][8][9][10], rhizosphere soil [11,12], sediment [13,14], fresh water [15], food waste [16], plant [17] and intertidal macroalga [18]. Some Luteimonas species not only play a significant role in the ecosystem, but also have a potential value in the field of basic research and biological engineering.…”

Luteimonas saliphila sp. nov. and Luteimonas salinisoli sp. nov., two novel strains isolated from saline soils

“…Species of the genus Luteimonas are aerobic, heterotrophic, Gram-stain-negative, yellow-coloured bacteria with summed feature 9, and iso-C 15 : 0 as the predominant fatty acids, ubiquinone-8 (Q-8) as the major respiratory quinone, and genomic DNA G+C contents of 64.3–73.4 mol% [2]. At the time of writing, the genus Luteimonas consisted of 24 species with validly published names (https://lpsn.dsmz.de/genus/luteimonas) [3], including a newly described species, Luteimonas deserti [4]. Strains of species of the genus Luteimonas can be found in various habitats, such as organic-contaminated soil, desert soil, fresh water or wastewater treatment plants, sediment, compost, wormcasts, rectal contents, and plant leaves or rhizosphere [4].…”

“…At the time of writing, the genus Luteimonas consisted of 24 species with validly published names (https://lpsn.dsmz.de/genus/luteimonas) [3], including a newly described species, Luteimonas deserti [4]. Strains of species of the genus Luteimonas can be found in various habitats, such as organic-contaminated soil, desert soil, fresh water or wastewater treatment plants, sediment, compost, wormcasts, rectal contents, and plant leaves or rhizosphere [4]. Some strains of species of the genus Luteimonas have been found to be able to decompose polymers, such as chitin [5], cellulose [6], starch, gelatin and casein [7].…”