Gluconobacter nephelii sp. nov., an acetic acid bacterium in the class Alphaproteobacteria.
Three strains, RBY-1(T), PHD-1 and PHD-2, were isolated from fruits in Thailand. The strains were Gram-negative, aerobic rods with polar flagella, produced acetic acid from ethanol and did not oxidize acetate or lactate. In phylogenetic trees based on 16S rRNA gene sequences and 16S-23S rRNA gene internal transcribed spacer (ITS) sequences, the strains formed a cluster separate from the type strains of recognized species of the genus Gluconobacter. The calculated 16S rRNA gene sequence and 16S-23S rRNA gene ITS sequence similarities were respectively 97.7-99.7 % and 77.3-98.1 %. DNA G+C contents ranged from 57.2 to 57.6 mol%. The strains showed high DNA-DNA relatedness of 100 % to one another, but low DNA-DNA relatedness of 11-34 % to the tested type strains of recognized Gluconobacter species. Q-10 was the major quinone. On the basis of the genotypic and phenotypic data obtained, the three strains clearly represent a novel species, for which the name Gluconobacter nephelii sp. nov. is proposed. The type strain is RBY-1(T) ( = BCC 36733(T) = NBRC 106061(T) = PCU 318(T)), whose DNA G+C content is 57.2 mol%.
Kommanee
Jintana
J
Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
Tanasupawat
Somboon
S
Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
Yukphan
Pattaraporn
P
BIOTEC Culture Collection, National Center for Genetic Engineering and Biotechnology, Pathumthani 12120, Thailand.
Malimas
Taweesak
T
BIOTEC Culture Collection, National Center for Genetic Engineering and Biotechnology, Pathumthani 12120, Thailand.
Muramatsu
Yuki
Y
NITE Biological Resource Center, Department of Biotechnology, National Institute of Technology and Evaluation, Kisarazu 292-0818, Japan.
Nakagawa
Yasuyoshi
Y
NITE Biological Resource Center, Department of Biotechnology, National Institute of Technology and Evaluation, Kisarazu 292-0818, Japan.
Yamada
Yuzo
Y
Shizuoka University, Shizuoka 422-8529, Japan.|JICA Senior Overseas Volunteer, Japan International Cooperation Agency (JICA), Shibuya-ku, Tokyo 151-8558, Japan.|BIOTEC Culture Collection, National Center for Genetic Engineering and Biotechnology, Pathumthani 12120, Thailand.
D019342:Acetic Acid / Q000378:metabolism*; D000332:Aerobiosis; D015373:Bacterial Typing Techniques; D001482:Base Composition; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000235:genetics; D000431:Ethanol / Q000378:metabolism; D005407:Flagella / Q000502:physiology; D005638:Fruit / Q000382:microbiology; D020576:Gluconobacter / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D011809:Quinones / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013785:Thailand
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D011809:Quinones; D012336:RNA, Ribosomal, 16S; D000431:Ethanol; D019342:Acetic Acid