Gordonia aquimaris sp. nov., a novel marine actinobacterium isolated from seawater in the upper gulf of Thailand

Abstract

An actinobacterium strain, SW21T, was isolated from seawater collected in the upper Gulf of Thailand. Cells were Gram-stain-positive, aerobic and rod-shaped. Growth was observed from 15 to 37 °C and at pH 6–8. Maximum NaCl for growth was 14 % (w/v). meso-Diaminopimelic acid, arabinose, galactose, glucose, rhamnose and ribose were detected in the whole-cell hydrolysate. Diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositol mannoside were detected as the phospholipids in the cells. The major menaquinones were MK-9(H2) and MK-7(H2). The major cellular fatty acids were C16 : 0, C18 : 1 ω9c, C18 : 0 and C18 : 010-methyl (TBSA). The 16S rRNA gene sequence data supported the assignment of strain SW21T to the genus Gordonia and showed that Gordonia mangrovi KCTC 49383T (98.7 %) was the closest relative. Moreover, the average nucleotide identity-blast (85.5 %) and digital DNA–DNA hybridization (30.7 %) values between strain SW21T and its closest neighbour were below the threshold values for delineation of a novel species. The combination of genotypic and phenotypic data indicated that strain SW21T is representative of novel species of the genus Gordonia . The name Gordonia aquimaris sp. nov. is proposed for strain SW21T. The type strain is SW21T (=TBRC 15691T=NBRC 115558T).

Insights into the Potential Role of Gordonia alkanivorans Strains in Biotechnologies

“…It can be said that Gordonia strains are ubiquitous. The studied genus exhibits a broad geographical distribution, with occurrences reported in the USA [10,11], Puerto Rico [12], Colombia [13], Brazil [14], Argentina [15], Israel [16], India [8], Namibia [17], South Africa [18], Germany [19], Russia [20,21], China [22][23][24], Taiwan [25], Thailand [26], South Korea [27,28], and Japan [29]. This diverse geographic range underscores the genus's ability to adapt to different climatic and ecological conditions.…”

Gordonia prachuapensis sp. nov. and Gordonia sesuvii sp. nov., two novel actinobacteria isolated from mangrove sediments and leaves of halophyte Sesuvium portulacastrum in Thailand

“…At the time of writing, the genus Gordonia comprised 53 species with validly published and correct names (https://lpsn.dsmz.de/genus/gordonia) [4]. Species of this genus have been isolated from various environments such as patient specimens, animal faeces, soil, seawater, plant, sewage sludge, wastewater and biofilter [5][6][7][8][9][10][11][12][13][14][15]. Gordonia might be crucial to the biodegradation and bioremediation of environmental contaminants.…”