Paenibacillus thailandensis sp. nov. and Paenibacillus nanensis sp. nov., xylanase-producing bacteria isolated from soil Khianngam, Saowapar and Akaracharanya, Ancharida and Tanasupawat, Somboon and Lee, Keun Chul and Lee, Jung-Sook,, 59, 564-568 (2009), doi = https://doi.org/10.1099/ijs.0.000406-0, publicationName = Microbiology Society, issn = 1466-5026, abstract= Two strains of xylanase-producing bacteria, S3-4AT and MX2-3T, isolated from soils in Thailand, were characterized on the basis of their phenotypic and chemotaxonomic characteristics, DNA–DNA relatedness and 16S rRNA gene sequences. The novel strains were Gram-positive, facultatively anaerobic, spore-forming, rod-shaped bacteria. They contained meso-diaminopimelic acid as the diagnostic diamino acid in the cell-wall peptidoglycan. The DNA G+C contents of strains S3-4AT and MX2-3T were 52.7 and 52.9 mol%, respectively. The major isoprenoid quinone was MK-7. The dominant cellular fatty acids were anteiso-C15 : 0 and iso-C16 : 0. Phylogenetic analyses using 16S rRNA gene sequences showed that both novel strains were affiliated to the genus Paenibacillus. Strains S3-4AT and MX2-3T were closely related to Paenibacillus agaridevorans DSM 1355T with 97 % and 97.3 % gene sequence similarities, respectively. The DNA–DNA relatedness between strains S3-4AT, MX2-3T and P. agaridevorans DSM 1355T was low (6.0–30.3 %). The novel strains could be clearly distinguished from P. agaridevorans DSM 1355T by physiological and biochemical characteristics. Therefore, these two strains represent novel species of the genus Paenibacillus, for which the names Paenibacillus thailandensis sp. nov. (type strain S3-4AT=KCTC 13043T=PCU 275T=TISTR 1827T) and Paenibacillus nanensis sp. nov. (type strain MX2-3T=KCTC 13044T=PCU 276T=TISTR 1828T) are proposed. , language=, type=