维沙卡帕特南红环菌新种
Rhodovulum visakhapatnamense sp. nov.
作者信息
Srinivas T N R, Anil Kumar P, Sasikala Ch, Ramana Ch V, Imhoff J F
机构信息
Bacterial Discovery Laboratory, Centre for Environment, Institute of Science and Technology, JNT University, Kukatpally, Hyderabad 500 085, India.
Department of Plant Sciences, School of Life Sciences, University of Hyderabad, PO Central University, Hyderabad 500 046, India.
出版信息
Int J Syst Evol Microbiol. 2007 Aug;57(Pt 8):1762-1764. doi: 10.1099/ijs.0.65076-0.
A Gram-negative, rod-shaped, phototrophic bacterium (JA181(T)) was isolated from a tidal water sample. On the basis of 16S rRNA gene sequence similarity, strain JA181(T) was shown to belong to the class Alphaproteobacteria, most closely related to Rhodovulum sulfidophilum (97.8 % similarity to the type strain), Rhodovulum adriaticum (93 %), Rhodovulum robiginosum (93 %), Rhodovulum iodosum (94 %), Rhodovulum imhoffii (94 %), Rhodovulum strictum (95 %), Rhodovulum euryhalinum (94.6 %) and Rhodovulum marinum (94.6 %). DNA-DNA hybridization with Rdv. sulfidophilum DSM 1374(T) (relatedness of 39 % with strain JA181(T)) and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain JA181(T) from the eight Rhodovulum species with validly published names. Strain JA181(T) therefore represents a novel species, for which the name Rhodovulum visakhapatnamense sp. nov. is proposed (type strain JA181(T) =JCM 13531(T) =ATCC BAA-1274(T) =DSM 17937(T)).
从一份潮水样本中分离出了一株革兰氏阴性、杆状、光合细菌（JA181(T)）。基于16S rRNA基因序列相似性，菌株JA181(T)被证明属于α-变形菌纲，与嗜硫红假单胞菌（与模式菌株的相似性为97.8%）、亚得里亚海红假单胞菌（93%）、铁锈红假单胞菌（93%）、碘红假单胞菌（94%）、因霍夫红假单胞菌（94%）、严格红假单胞菌（95%）、广盐红假单胞菌（94.6%）和海洋红假单胞菌（94.6%）关系最为密切。与嗜硫红假单胞菌DSM 1374(T)的DNA-DNA杂交（与菌株JA181(T)的相关性为39%）以及生理生化测试使得菌株JA181(T)能够与已有效发表名称的八种红假单胞菌进行基因型和表型区分。因此，菌株JA181(T)代表了一个新物种，为此提出名为维沙卡帕特南红假单胞菌（Rhodovulum visakhapatnamense）的新种（模式菌株JA181(T)=JCM 13531(T)=ATCC BAA-1274(T)=DSM 17937(T)）。
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