Streptomyces aquilus, Li, Kaiqin, Guo, Yihui, Wang, Junzhen, Wang, Zhiyong, Zhao, Jiarong & Gao, Jian, 2020

Li, Kaiqin, Guo, Yihui, Wang, Junzhen, Wang, Zhiyong, Zhao, Jiarong & Gao, Jian, 2020, Streptomyces aquilus sp. nov., a novel actinomycete isolated from a Chinese medicinal plant, International Journal of Systematic and Evolutionary Microbiology 70 (3), pp. 1912-1917 : 1916

DESCRIPTION OF STREPTOMYCES AQUILUS SP. NOV.

Streptomyces aquilus sp. nov. (a'qui.lus. L. masc. adj. aquilus brown; referring to the ability of the organism to produce brown nutrient hyphae).

Aerobic, Gram-positive actinobacterium; forms welldeveloped branched aerial mycelium. Produces cylindrical and smooth-surfaced spores arranged in straight chains. The colour of the aerial mycelium is white and the colour of the substrate mycelium is light yellow to brown on ISP (2–7) media. No distinct soluble pigment is produced on tested media. Grows well on ISP (2–7) media. Growth occurs at pH 5.0–12.0, 10–45 °C and with 0–7% NaCl (w/v). Fructose, D-galactose, D-glucose, mannitol, raffinose, ribose and sucrose can be used as sole carbon sources for growth. As a nitrogen source, it utilizes arginine, asparagine, L-cysteine, L-histidine, L-threonine, methionine and tyrosine. Starch hydrolysis, H 2 S production, nitrate reduction, milk coagulation and milk peptonization, gelatin liquefaction and tweens (20, 40, 60 and 80) degradation are positive. Resistant to the following antibiotics: ampicillin, carbenicillin, cefoperazone, ceftazidime, clindamycin, norfloxacin, oxacillin, penicillin and vancomycin. The cell wall contains alanine, asparagine, glutamate, glycine and LL-DAP. Whole-cell sugars are glucose, mannose and xylose. The predominant cellular fatty acids are C 16:1 ω9 c, iso-C 16:0 and C 16:0. The predominant menaquinones are MK-9(H 8), MK-9(H 2), MK-9 and MK-9(H 6). The polar lipids contain phosphatidylethanolamine, diphosphatidylglycerol, phosphotidylinositol and phosphatidylinositol mannosides.

The type strain is GGCR-6 T (= CICC 11055 T = JCM 33584 T), which was isolated from the healthy leaves of a medicinal plant, Xanthium sibiricum , collected from the botanical garden of Hunan University of Science and Technology in Hunan province, PR China. The G+C content of the genomic DNA of the type strain is 70.9 mol%. The GenBank/EMBL/ DDBJ accession number for the 16S rRNA gene sequence of GGCR-6 T is MH718844 . The whole-genome shotgun project has been deposited at DDBJ/ENA/GenBank under the accession number CP034463 . The version described in this paper is version CP034463.1 .