Abstract
A novel actinobacterium, designated strain NEAU-QY24T, was isolated from the rhizosphere of corn (Zea mays L.). A polyphasic approach was employed to determine the taxonomic status of strain NEAU-QY24T. The isolate was found to have chemical and morphological properties of the genus Streptomyces, with high 16S rRNA gene sequence similarity to Streptomyces lanatus JCM 4332T (98.3%) and clustered phylogenetically with Streptomyces lannensis JCM 16578T (98.2%). The cell wall was found to contain meso-diaminopimelic acid and the whole cell sugars were identified as glucose and ribose. The predominant menaquinones were identified as MK-9(H6), MK-9(H4) and MK-9(H8). The phospholipid profile was found to consisted of diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol. The major fatty acids were identified as iso-C16:0, C16:0, anteiso-C17:0 and C15:0. A combination of DNA–DNA hybridization experiments and phenotypic tests were carried out between strain NEAU-QY24T and its closely related strains, which clarified their relatedness and demonstrated that strain NEAU-QY24T could be distinguished from these strains. These data indicate that the isolate should be recognised as a new species of the genus Streptomyces, for which the name Streptomyces flavalbus sp. nov. is proposed. The type strain is NEAU-QY24T (= CGMCC 4.7400T = DSM 104539T).
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This work was supported in part by grants from the National Natural Science Foundation of China (No. 31471832), Chang Jiang Scholar Candidates Program for Provincial Universities in Heilongjiang (CSCP).
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Cao, T., Shen, Y., Zhao, J. et al. Streptomyces flavalbus sp. nov., an actinobacterium isolated from rhizosphere of maize (Zea mays L.). Antonie van Leeuwenhoek 111, 1047–1054 (2018). https://doi.org/10.1007/s10482-017-1004-6
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DOI: https://doi.org/10.1007/s10482-017-1004-6