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Paenibacillus hunanensis sp. nov., isolated from rice seeds

¹ Capital Normal University, College of Life Sciences;
² College of Public Health, Shanxi Medical University;
³ DSMZ Deutsche Sammlung von Mikroorganismen und Zellkulturen;
⁴ Agricultural Cultural Collection of China, Institute of Agricultural Resources and Regional Planning

⁵ E-mail: songwei{at}mail.cnu.edu.cn

Four Gram-positive, aerobic or facultatively anaerobic, motile, endospore-forming, rod-shaped bacteria, designated as strains FeL05T, FeL11, Fek19 and Fek21, were isolated from the seeds of hybrid rice (Oryza sativa L.) Jinyou 611, and their taxonomic positions were determined using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequences showed that the four strains were recognized as species of the genus Paenibacillus. They showed less than 95.4% sequence similarities with other Paenibacillus species. The G+C content of strain FeL05T was found to be 53.3mol%. Its predominant respiratory quinone was MK-7. The predominant cellular fatty acids were anteiso-C15:0 (61.7%), C16:0 (10.9%), iso-C16:0 (7.0%), anteiso-C17:0( 6.7%) and iso-C15:0(5.2%). On the basis of its phenotypic properties and phylogenetic distinctiveness, strain FeL05T represents a novel species of the genus Paenibacillus, for which the name Paenibacillus hunanensis sp. nov. (ACCC 10718T=CGMCC 1.8907T=DSM 22170T) is proposed.