The Streptomyces violaceusniger clade:: a home for streptomycetes with rugose ornamented spores
The Streptomyces violaceusniger clade:: a home for streptomycetes with rugose ornamented spores
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DOI：
10.1007/s10482-007-9146-6
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发表时间：
2007-08-01
影响因子：
2.6
通讯作者：
Sembiring, Langkah
中科院分区：
文献类型：
--
作者：
Goodfellow, Michael;Kumar, Yashawant;Sembiring, Langkah
在一项多相研究中，对16株吸水链霉菌、产黑孢链霉菌、疏生链霉菌、孢泥链霉菌和紫色黑链霉菌的分类地位进行了评价。在链霉菌16 SrRNA基因树中，11株菌与亚洲链霉菌、昌克林链霉菌、印度尼西亚链霉菌、爪哇链霉菌、马来西亚链霉菌、根球链霉菌、雅坦链霉菌和尤佳卡坦链霉菌等模式菌株形成了一个独特的分支，这一分支的成员产生的孢子呈螺旋状排列，呈皱纹状。这11株菌分别归属于3个已知种和4个新种，即白黄链霉菌Streptomyces albiflaviniger sp. nov.，德迈链霉菌，格尔德霉素链霉菌，灰色链霉菌，和吸水链霉菌、产黑孢链霉菌和紫色黑链霉菌。还提出了S. sporoclivatus成为S.产黑孢菌S. sparsogenes NRRL 2940（T）在链霉菌属16 S rRNA基因树中形成独特的系统谱系，并且使用一系列表型特性容易地与其它菌株区分开。S.紫色黑曲霉菌株NRRL 8097、NRRL B-5799、NRRL 2834和ISP 5182不在S.紫色黑曲霉16 SrRNA基因分支，形成光滑或脊状的孢子，孢子链呈曲折或螺旋状。这些微生物彼此分离，并与它们最接近的系统发育邻居分离，被认为是值得种地位的金色链霉菌，褐黄发色链霉菌，褐灰发色链霉菌，和褐黄灰链霉菌（Streptomyces phaeoluteigriseus sp. nov.），分别
The taxonomic status of 16 strains received as Streptomyces hygroscopicus, Streptomyces melanosporofaciens, Streptomyces sparsogenes, Streptomyces sporoclivatus and Streptomyces violaceusniger was evaluated in a polyphasic study. Eleven of the organisms formed a distinct clade in the Streptomyces 16S rRNA gene tree with the type strains of Streptomyces asiaticus, Streptomyces cangkringensis, Streptomyces indonesiensis, Streptomyces javensis, Streptomyces malaysiensis, Streptomyces rhizosphaericus, Streptomyces yatensis and Streptomyces yogyakartensis, the members of this group produced rugose ornamented spores in spiral spore chains. The eleven strains were assigned to three established and four novel species, namely Streptomyces albiflaviniger sp. nov., Streptomyces demainii sp. nov., Streptomyces geldanamycininus sp. nov., Streptomyces griseiniger sp. nov., and Streptomyces hygroscopicus, Streptomyces melanosporofaciens and Streptomyces violaceusniger. It is also proposed that S. sporoclivatus becomes a subjective synonym of S. melanosporofaciens. S. sparsogenes NRRL 2940(T), which produced ridged ornamented spores in spiral spore chains, formed a distinct phyletic line in the Streptomyces 16S rRNA gene tree and was readily distinguished from the other strains using a range of phenotypic properties. S. violaceusniger strains NRRL 8097, NRRL B-5799, NRRL 2834 and ISP 5182 fell outside the S. violaceusniger 16S rRNA gene clade and formed either smooth or ridged ornamented spores in either flexuous or spiral spore chains. These organisms were distinguishedfrom one another and from their closest phylogenetic neighbors and were considered to merit species status as Streptomyces auratus sp. nov., Streptomyces phaeoluteichromatogenes sp. nov., Streptomyces phaeogriseichromatogenes sp. nov., and Streptomyces phaeoluteigriseus sp. nov., respectively.