Monitoring of Bacillus thermodenitrificans OHT-1 in compost by whole cell hybridization.
Thermophilic aerobic composting is a widely practiced method for the disposal of exhaust materials. We isolated a thermophilic bacteria strain from a compost sample under aerobic conditions at 60 degrees C. On the basis of its 16S rRNA sequence and physiological characteristics, this strain was identified as Bacillus thermodenitrificans OHT-1. An 18-subunit oligonucleotide probe for 16S rRNA, labeled with fluorescein isothiocyanate, was developed for the detection of B. thermodenitrificans. Spores and vegetative cells of B. thermodenitrificans OHT-1 were detected in liquid culture and laboratory compost by whole cell hybridization using this oligonucleotide probe. The results obtained by whole cell hybridization were evaluated in growth experiments of B. thermodenitrificans OHT-1 in laboratory compost and were used to enumerate spores and vegetative cells.
Hatsu
Masahiro
M
Department of Bioprocessing, Faculty of Agriculture, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
Ohta
Junji
J
Takamizawa
Kazuhiro
K
D000332:Aerobiosis; D001407:Bacillus / Q000145:classification / Q000235:genetics / Q000254:growth & development* / Q000502:physiology; D015169:Colony Count, Microbial; D003470:Culture Media; D004275:DNA, Ribosomal / Q000032:analysis; D016650:Fluorescein-5-isothiocyanate; D006358:Hot Temperature; D009693:Nucleic Acid Hybridization / Q000379:methods; D015345:Oligonucleotide Probes; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012037:Refuse Disposal; D013171:Spores, Bacterial / Q000502:physiology
D003470:Culture Media; D004275:DNA, Ribosomal; D015345:Oligonucleotide Probes; D012336:RNA, Ribosomal, 16S; D016650:Fluorescein-5-isothiocyanate