title: Chimaereicella boritolerans sp. nov., a boron-tolerant and alkaliphilic bacterium of the family Flavobacteriaceae isolated from soil.
abstract: A non-motile, Gram-negative, boron-tolerant and alkaliphilic bacterium was isolated from soil of the Hisarcik area in the Kutahya Province of Turkey that was naturally high in boron minerals. The novel isolate, designated T-22(T), formed rod-shaped cells, was catalase- and oxidase-positive and tolerated up to 300 mM boron. The strain also survived on agar medium containing up to 3 % (w/v) NaCl. The pH range for growth of this strain was 6.5-10.0 (optimum pH 8.0-9.0) and the temperature range was 16-37 degrees C (optimum 28-30 degrees C). Phylogenetic analysis based on 16S rRNA gene sequences revealed a clear affiliation with the genus Chimaereicella, with 97.4 % sequence similarity to Chimaereicella alkaliphila AC-74(T), which was the highest similarity among cultivated bacteria. The DNA-DNA relatedness with C. alkaliphila AC-74(T) was 28.3 %. The major respiratory quinone system was MK-7 and the predominant cellular fatty acids were iso-C(15 : 0), iso-C(17 : 1)omega9c, iso-C(17 : 0) 3-OH and summed feature 3 (iso-C(15 : 0) 2-OH and/or iso-C(16 : 1)omega7c). The DNA G+C content was 42.5 mol%. Based on the phylogenetic analysis and physiological, chemotaxonomic and genetic data, we concluded that strain T-22(T) should be classified in the genus Chimaereicella, and we propose the name Chimaereicella boritolerans sp. nov. for this novel species. The type strain is strain T-22(T) (=DSM 17298(T)=NBRC 101277(T)=ATCC BAA-1189(T)).
authors.affiliation: National Agricultural Research Centre, Park Road, Islamabad-45500, Pakistan.|Biotechnology Research Center, University of Tokyo, Yayoi 1-1-1, Bunkyo-Ku, Tokyo 113-8657, Japan.
authors.forename: Iftikhar
authors.initials: I
authors.lastname: Ahmed
authors.affiliation: Institute of Molecular and Cellular Biosciences, University of Tokyo, Yayoi 1-1-1, Bunkyo-Ku, Tokyo 113-8657, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Yokota
authors.affiliation: SORST, JST, Chiyoda-Ku, Tokyo, Japan.|Biotechnology Research Center, University of Tokyo, Yayoi 1-1-1, Bunkyo-Ku, Tokyo 113-8657, Japan.
authors.forename: Toru
authors.initials: T
authors.lastname: Fujiwara
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D015373:Bacterial Typing Techniques; D001482:Base Composition; D001895:Boron / Q000494:pharmacology*; D002374:Catalase / Q000032:analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D041965:Flavobacteriaceae / Q000737:chemistry / Q000145:classification* / Q000187:drug effects / Q000302:isolation & purification* / Q000502:physiology; D020459:Genes, rRNA / Q000235:genetics; D006863:Hydrogen-Ion Concentration; D008124:Locomotion; D008855:Microscopy, Electron, Scanning; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010088:Oxidoreductases / Q000032:analysis; D010802:Phylogeny; D011809:Quinones / Q000032:analysis; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D012965:Sodium Chloride / Q000494:pharmacology; D012988:Soil Microbiology; D013696:Temperature; D014421:Turkey
chemical_list: D000900:Anti-Bacterial Agents; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D011809:Quinones; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride; D010088:Oxidoreductases; D002374:Catalase; D001895:Boron