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  • Title: Nonomuraea syzygii sp. nov., an endophytic actinomycete isolated from the roots of a jambolan plum tree (Syzygium cumini L. Skeels).
    Author: Rachniyom H, Matsumoto A, Indananda C, Duangmal K, Takahashi Y, Thamchaipenet A.
    Journal: Int J Syst Evol Microbiol; 2015 Apr; 65(Pt 4):1234-1240. PubMed ID: 25634947.
    Abstract:
    A novel endophytic actinomycete, designated strain GKU 164(T), was isolated from the roots of a jambolan plum tree (Syzygium cumini L. Skeels), collected at Khao Khitchakut National Park, Chantaburi province, Thailand. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain formed a distinct clade within the genus Nonomuraea , and was most closely related to Nonomuraea monospora PT708(T) (98.77% 16S rRNA gene sequence similarity) and Nonomuraea thailandensis KC-061(T) (98.73%). Strain GKU 164(T) formed a branched substrate and aerial hyphae that generated single spores with rough surfaces. The cell wall contained meso-diaminopimelic acid. The whole-cell sugars were madurose, galactose, mannose, ribose, rhamnose and glucose. The N-acyl type of muramic acid was acetyl. The predominant menaquinone was MK-9(H4) with minor amounts of MK-9(H6), MK-9(H2) and MK-9(H0). The phospholipid profile contained diphosphatidylglycerol, phosphatidylethanolamine, hydroxy-phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositolmannosides, phosphatidylmonomethylethanolamine, hydroxy-phosphatidylmonomethylethanolamine, an unidentified aminophosphoglycolipid and four unknown phospholipids. The major fatty acids were iso-C(16 : 0) and 10-methyl C(17 : 0). The genomic DNA G+C content was 70.4 mol%. Significant differences in the morphological, chemotaxonomical, and biochemical data together with DNA-DNA relatedness values between strain GKU 164(T) and type strains of closely related species, clearly demonstrated that strain GKU 164(T) represents a novel species of the genus Nonomuraea , for which the name Nonomuraea syzygii sp. nov. is proposed. The type strain is GKU 164(T) ( = BCC 70457(T) = NBRC 110400(T)).
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