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Burkholderia ginsengisoli sp. nov., a -glucosidase-producing bacterium isolated from soil of a ginseng field

¹ Department of Oriental Medicinal Material and Processing, College of Life Science, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea
² Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, South Korea
³ Institute of Food Science and Engineering, Yantai University, Yantai 264005, People's Republic of China

Correspondence
Deok-Chun Yang
dcyang{at}khu.ac.kr

A bacterial strain (designated KMY03^T) that possesses -glucosidase activity was isolated from soil from a ginseng field in South Korea and was characterized in order to determine its taxonomic position. The bacterium was found to comprise Gram-negative, rod-shaped, motile cells with unipolar polytrichous flagella. On the basis of 16S rRNA gene sequence similarity, strain KMY03^T was shown to belong to the family Burkholderiaceae of the Betaproteobacteria, being most closely related to Burkholderia caledonica LMG 19076^T (97.8 %), Burkholderia terricola LMG 20594^T (97.5 %), Burkholderia xenovorans LMG 21463^T (97.4 %) and Burkholderia phytofirmans LMG 22146^T (97.3 %). Chemotaxonomic data (major ubiquinone, Q-8; major fatty acids, C_{17 : 0} cyclo, C_{16 : 0}, C_{19 : 0} cyclo 8c and summed feature 2) supported the affiliation of the novel strain with the genus Burkholderia. The results of DNA–DNA hybridizations and physiological and biochemical tests allowed the strain to be differentiated genotypically and phenotypically from Burkholderia species with validly published names. On the basis of these data, strain KMY03^T represents a novel species of the genus Burkholderia, for which the name Burkholderia ginsengisoli sp. nov. is proposed. The type strain is KMY03^T (=KCTC 12389^T=NBRC 100965^T).

A negatively stained transmission electron micrograph of strain KMY03^T is available as a supplementary figure in IJSEM Online.

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