Saccharothrix yanglingensis sp. nov., an antagonistic endophytic actinomycete isolated from cucumber plant
Saccharothrix yanglingensis sp. nov., an antagonistic endophytic actinomycete isolated from cucumber plant
复制标题
DOI：
10.1007/s10482-011-9631-9
复制
发表时间：
2011-09
期刊：
影响因子：
--
通讯作者：
Xiaoqun Yan;Li-li Huang;Xuan Tu;Xiaoning Gao;Z. Kang
中科院分区：
文献类型：
--
作者：
Xiaoqun Yan;Li-li Huang;Xuan Tu;Xiaoning Gao;Z. Kang
从黄瓜幼苗根部分离到一株内生放线菌，命名为Hhs. 015 T。通过多相分类方法鉴定了内生分离物。根据16 S rRNA基因序列的相似性，菌株Hhs.015T是密切相关的属的成员。Hhs. 015 T菌株与长孢丝菌NRRL B-16116 T、新疆丝菌NRRL B-24321 T、南方丝菌CGMCC 4.1355 T和西班牙丝菌CGMCC 4.1714 T的DNA-DNA同源性分别为33.8%、28.2%、44.1%和29.5%，表明菌株Hhs. 015 T为丝菌属的一个新种。这与形态学、生理学和化学分类学数据一致。总体而言，这些结果表明菌株Hhs.015T代表了一个新的多囊藻种。命名为杨岭毛藻（P. yanglingensissp.）nov.，模式菌株为Hhs.015T（=CGMCC 4.5627T= KCTC 19722 T）。
An endophytic actinomycete strain, designated Hhs.015T, was isolated from roots of cucumber seedlings. The endophytic isolate was identified by means of a polyphasic taxonomic approach. On the basis of 16S rRNA gene sequence similarities, strain Hhs.015Twas closely related to members of the genusSaccharothrix. DNA–DNA hybridization with the four closest relatives,Saccharothrix longisporaNRRL B-16116T,Saccharothrix xinjiangensisNRRL B-24321T,SaccharothrixautraliensisCGMCC 4.1355TandSaccharothrix espanaensisCGMCC 4.1714T, gave similarity values of 33.8, 28.2, 44.1 and 29.5%, respectively, which indicated that strain Hhs.015Trepresents a novel species of the genusSaccharothrix. This is consistent with the morphological, physiological and chemotaxonomic data. As a whole, these results suggest that strain Hhs.015Trepresents a novelSaccharothrixspecies. The nameSaccharothrix yanglingensissp. nov. is proposed, with the type strain Hhs.015T(=CGMCC 4.5627T= KCTC 19722T).