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Int J Syst Evol Microbiol 59 (2009), 1002-1006; DOI  10.1099/ijs.0.002352-0
© 2009 International Union of Microbiological Societies

Paenibacillus pueri sp. nov., isolated from Pu'er tea

Byung-Chun Kim1, Won-Jin Jeong1, Do Young Kim1, Hyun-Woo Oh1, Hyangmi Kim1, Doo-Sang Park1, Hee-Moon Park2 and Kyung Sook Bae1

1 Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, KRIBB, Daejeon 305-806, Republic of Korea
2 Department of Microbiology, School of Bioscience and Biotechnology, Chungnam National University, Daejeon 305-764, Republic of Korea

Correspondence
Kyung Sook Bae
ksbae{at}kribb.re.kr

Pu'er tea is a fermented drink made from the leaves of the tea plant, Camellia sinensis. Two novel bacteria, designated strains b09i-3T and b13i-1, were isolated during the process of fermentation of this tea. These isolates were Gram-positive, endospore-forming, motile rods that grew at 25–42 °C and pH 5.5–10.4. The DNA G+C content was 56.6–58.4 mol%, the predominant isoprenoid quinone was MK-7 and the predominant cellular fatty acid was anteiso-C15 : 0 (49.0–50 % of the total). Phylogenetic analysis based on 16S rRNA gene sequences showed that strains b09i-3T and b13i-1 shared 99.9 % similarity and were affiliated with a cluster within the family Paenibacillaceae. Strains b09i-3T and b13i-1 were related most closely to Paenibacillus ginsengihumi DCY16T (97 % 16S rRNA gene sequence similarity). Levels of DNA–DNA relatedness between the two novel isolates and P. ginsengihumi DCY16T were below 56 %. The phylogenetic and phenotypic characteristics of these novel isolates allowed them to be distinguished clearly from recognized species of the genus Paenibacillus. Based on these data, strains b09i-3T and b13i-1 are considered to represent a novel species of the genus Paenibacillus, for which the name Paenibacillus pueri sp. nov. is proposed. The type species is b09i-3T (=KCTC 13223T=CECT 7360T).

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of strains b09i-3T and b13i-1 are EU391156 and EU391155, respectively.

A transmission electron micrograph of cells of strain b09i-3T is available as supplementary material with the online version of this paper.






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Copyright © 2009 by the International Union of Microbiological Societies.