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Int J Syst Evol Microbiol 59 (2009), 1342-1347; DOI  10.1099/ijs.0.002261-0
© 2009 International Union of Microbiological Societies

Paenibacillus pectinilyticus sp. nov., isolated from the gut of Diestrammena apicalis

Doo-Sang Park, Won-Jin Jeong, Kang Hyun Lee, Hyun-Woo Oh, Byung-Chun Kim, Kyung Sook Bae and Ho-Yong Park

Biological Resources Center, KRIBB, Daejeon 305-806, Republic of Korea

Correspondence
Ho-Yong Park
hypark{at}kribb.re.kr

During a search for exo-enzyme-producing bacteria in the gut of an insect, Diestrammena apicalis, a novel bacterium capable of degrading pectin was isolated. The isolate, designated strain RCB-08T, comprised Gram-positive, endospore-forming, motile rods capable of growth at 15–30 °C and pH 6.0–8.7. The DNA G+C content of the isolate was 51.5 mol% and the predominant cellular fatty acid was anteiso-C15 : 0 (74.1 %). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain RCB-08T was affiliated with a cluster within the Paenibacillaceae, and was related most closely to Paenibacillus chondroitinus NBRC 15376T, with a sequence similarity of 96.7 %. The DNA–DNA relatedness value for strain RCB-08T with P. chondroitinus NBRC 15376T was 15.0 %. Strain RCB-08T hydrolysed pectin, but not cellulose, casein, starch or xylan. Strain RCB-08T could be clearly distinguished from other Paenibacillus species on the basis of characteristics observed using a polyphasic approach. Therefore strain RCB-08T is considered to represent a novel species of the genus Paenibacillus, for which the name Paenibacillus pectinilyticus sp. nov. is proposed. The type strain is RCB-08T (=KCTC 13222T=CECT 7358T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain RCB-08T is EU391157.

Transmission electron micrographs of cells of strain RCB-08T and a maximum-likelihood tree and an extended neighbour-joining tree based on 16S rRNA gene sequences are available as supplementary material with the online version of this paper.






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