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Paenibacillus oryzae sp. nov., isolated from rice roots, Page 1 of 1
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A novel endophytic bacterium, strain 1DrF-4T, isolated from rice roots, was characterized on the basis of its phenotypic characteristics and genotypic information. The novel strain was Gram-positive-staining, endospore-forming, facultatively anaerobic, motile and rod-shaped. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 1DrF-4T formed a monophyletic clade within the genus Paenibacillus . The most phylogenetically related species was Paenibacillus pinesoli KACC 17472T, with which strain 1DrF-4T showed 16S rRNA gene sequence similarity of 95.2 %. 16S rRNA gene sequence similarities with type strains of other species of the genus Paenibacillus were less than 95 %. The predominant cellular fatty acids were anteiso-C15 : 0 (61.1 %) and C16 : 0 (11.1 %), which is one of the characteristic traits of the genus Paenibacillus . The quinone system contained exclusively menaquinone MK-7. The polar lipid profile contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, glycolipid and an unknown phospholipid. The DNA G+C content was 50.16 mol%, which was within the range reported for species of the genus Paenibacillus . Characterization by genotypic, chemotaxonomic and phenotypic analysis indicated that strain 1DrF-4T (=ACCC 19927T=JCM 30486T) represents a novel species of the genus Paenibacillus , for which the name Paenibacillus oryzae sp. nov. is proposed.
These authors contributed equally to this work.
The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain 1DrF-4T is KX196453.
Eight supplementary figures are available with the online Supplementary Material.
© 2016 IUMS | Published by the Microbiology Society
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