Cohnella damensis sp nov., a Motile Xylanolytic Bacteria Isolated from a Low Altitude Area in Tibet
Cohnella damensis sp nov., a Motile Xylanolytic Bacteria Isolated from a Low Altitude Area in Tibet
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DOI：
10.4014/jmb.0903.03023
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发表时间：
2010-02-01
影响因子：
2.8
通讯作者：
Fang, Chengxiang
中科院分区：
文献类型：
--
作者：
Luo Xuesong;Wang, Zhang;Fang, Chengxiang
从单一土壤样品中分离出一株具有木聚糖水解活性的菌株13-25(T)，对其表型和系统发育特征进行了表征。分离的细胞为革兰氏染色变杆，但未观察到孢子形成。这种菌株过氧化氢酶和氧化酶阳性，能够降解淀粉和木聚糖。主要脂肪酸是前iso- c -15:10， C-16:0和iso-C-16:0。主要的呼吸醌是甲基萘醌7(MK-7)，其极性脂质谱与小红花属一致。DNA G+C含量为54.3% mol%。16S rRNA基因序列分析表明，该生物属于Cohnella属，与Cohnella panacarvi是最近的系统发育邻居。16S rRNA基因序列相似性低(
A bacterial strain, 13-25(T) with xylanolytic activity isolated from a single soil sample, was characterized with respect to its phenetic and phylogenetic characteristics. The cells of the isolate are Gram-staining variable rods, but spore formation was not observed. This strain is catalase- and oxidase-positive, and able to degrade starch and xylan. The predominant fatty acids are anteiso-C-15:10, C-16:0, and iso-C-16:0. The major respiratory quinone is menaquinone 7(MK-7), with a polar lipid profile consistent with the genus Cohnella. The DNA G+C content is 54.3 mol%. The 16S rRNA gene sequence analysis indicates that this organism belongs to the genus Cohnella, with Cohnella panacarvi as the closest phylogenetic neighbor. Low levels of 16S rRNA gene sequence similarity (