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首页> 外文期刊>The Journal of Antibiotics: An International Journal >Streptomyces hundungensis sp. nov., a novel actinomycete with antifungal activity and plant growth promoting traits
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Streptomyces hundungensis sp. nov., a novel actinomycete with antifungal activity and plant growth promoting traits

机译：匈奴链霉菌nov。，一种具有抗真菌活性和促进植物生长性状的新型放线菌

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摘要

A novel actinobacterium MBRL 251 T, isolated from a sample collected from a limestone quarry at Hundung, Manipur, India, was characterized using a polyphasic approach. The 16S ribosomal RNA gene sequence of strain MBRL 251 T showed closest similarities with Streptomyces xanthochromogenes NRRL B-5410 T (99.6%) and Streptomyces michiganensis NBRC 12797 T (99.6%). The DNA relatedness between MBRL 251 T and S. xanthochromogenes NBRC 12828 T, and S. michiganensis NBRC 12797 T was 46.6% and 40.7%, respectively. Strain MBRL 251 T contained LL-diaminopimelic acid as the diagnostic diamino acid, with glucose and xylose as the main cell wall sugars, whereas small amounts of galactose, mannose, rhamnose and ribose were also detected in the whole-cell wall hydrolysates. The major fatty acids identified were anteiso-C 15:0 (35.1%), iso-C 16:0 (21.1%) and anteiso-C 17:1 (13.2%). The predominant menaquinones detected were MK-9(H 6) and MK-9(H 8), whereas the polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositolmannosides. The G+C content of the genomic DNA was 72.3%. The phenotypic and genotypic data showed that strain MBRL 251 T merits the recognition as a representative of a novel species of the genus Streptomyces. It is proposed that the isolate should be classified in the genus Streptomyces as a novel species, Streptomyces hundungensis sp. nov. The type strain is MBRL 251 T (=JCM 17577 T =KCTC 29124 T).
机译：使用多相方法表征了一种新的放线菌MBRL 251 T，该菌株是从从印度曼尼普尔邦Hundung的石灰石采石场采集的样品中分离出来的。 MBRL 251 T菌株的16S核糖体RNA基因序列显示与黄原色链霉菌NRRL B-5410 T（99.6％）和密歇根链霉菌NBRC 12797 T（99.6％）最为相似。 MBRL 251 T和黄原色链球菌NBRC 12828 T和密歇根链球菌NBRC 12797 T之间的DNA相关性分别为46.6％和40.7％。 MBRL 251 T菌株含有LL-二氨基庚二酸作为诊断性二氨基酸，葡萄糖和木糖为主要的细胞壁糖，而全细胞壁水解物中也检测到少量的半乳糖，甘露糖，鼠李糖和核糖。鉴定出的主要脂肪酸为前异-C 15：0（35.1％），异-C 16：0（21.1％）和前异-C 17：1（13.2％）。检测到的主要甲基萘醌为MK-9（H 6）和MK-9（H 8），而极性脂质为二磷脂酰甘油，磷脂酰甘油，磷脂酰乙醇胺，磷脂酰肌醇和磷脂酰肌醇甘露糖苷。基因组DNA的G + C含量为72.3％。表型和基因型数据表明，MBRL 251 T菌株应被认为是链霉菌属新物种的代表。提出该分离株应在链霉菌属中分类为新种，洪链链霉菌。十一月类型应变为MBRL 251 T（= JCM 17577 T = KCTC 29124 T）。

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