title: Paenibacillus populi sp. nov., a novel bacterium isolated from the rhizosphere of Populus alba.
abstract: A novel aerobic bacterium, designated strain LAM0705(T), was isolated from the rhizosphere of Populus alba in the Peking University Third Hospital. Cells of strain LAM0705(T) were observed to be Gram-stain positive, motile, spore-forming and rod-shaped. The optimal temperature and pH for growth were found to be 30 °C and pH 7.5, respectively. Strain LAM0705(T) was found to be able to grow in the presence 0-5 % NaCl (w/v) (optimum 1.0 %). The major fatty acids of strain LAM0705(T) were identified as anteiso-C15:0, C16:0 and iso-C16:0. The dominant polar lipids were found to consist of diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. The cell wall peptidoglycan of strain LAM0705(T) was found to contain meso-diaminopimelic acid. The predominant menaquinone was identified as MK-7. The G+C content of genomic DNA was found to be 48 mol% when determined by the T m method. The 16S rRNA gene sequence similarity analysis indicated that strain LAM0705(T) is closely related to Paenibacillus agaridevorans DSM 1355(T) and Paenibacillus thailandensis KCTC 13043(T) with 97.8 and 96.1 % sequence similarity, respectively. The DNA-DNA hybridization value between strain LAM0705(T) and P. agaridevorans DSM 1355(T) was 47 ± 0.8 %. On the basis of its phenotypic, phylogenetic and chemotaxonomic characteristics, strain LAM0705(T) is concluded to represent a novel species of the genus Paenibacillus, for which the name Paenibacillus populi sp. nov. is proposed. The type strain is LAM0705(T) (=ACCC 06427(T) = JCM 19843(T)).
authors.affiliation: Pediatric Department, Peking University Third Hospital, Beijing, 100191, China.
authors.forename: Tong-Yan
authors.initials: TY
authors.lastname: Han
authors.forename: Xiao-Mei
authors.initials: XM
authors.lastname: Tong
authors.forename: Yan-Wei
authors.initials: YW
authors.lastname: Wang
authors.forename: Hui-Min
authors.initials: HM
authors.lastname: Wang
authors.forename: Xiao-Rong
authors.initials: XR
authors.lastname: Chen
authors.forename: De-Long
authors.initials: DL
authors.lastname: Kong
authors.forename: Xiang
authors.initials: X
authors.lastname: Guo
authors.forename: Zhi-Yong
authors.initials: ZY
authors.lastname: Ruan
mesh_terms: D000332:Aerobiosis; D015373:Bacterial Typing Techniques; D001482:Base Composition; D002473:Cell Wall / Q000737:chemistry; D002681:China; D016000:Cluster Analysis; D003600:Cytosol / Q000737:chemistry; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D003960:Diaminopimelic Acid / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D008124:Locomotion; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D056507:Paenibacillus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D010457:Peptidoglycan / Q000032:analysis; D010743:Phospholipids / Q000032:analysis; D010802:Phylogeny; D032107:Populus; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D058441:Rhizosphere; D017422:Sequence Analysis, DNA; D012965:Sodium Chloride / Q000378:metabolism; D012988:Soil Microbiology; D013171:Spores, Bacterial / Q000166:cytology; D013696:Temperature; D024482:Vitamin K 2 / Q000032:analysis
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D010457:Peptidoglycan; D010743:Phospholipids; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; D012965:Sodium Chloride; D003960:Diaminopimelic Acid