Year-end Sale % OFF 
Abstract
Bacillus -strains representing the dominant thermophilic aerobes in municipal landfill and urban air are described. 16s rDNA sequencing studies showed that these strains represented a distinct lineage with the radiation of the genus Bacillus . The strains were strictly aerobic, growing between 32°C and 64°C, unable to use sugars as source of carbon and energy and formed sphaerical spores in terminally swollen sporangia. The cell morphology varied between cocci, short rods sometimes S-layered, extremely long rods and sphaerical cell wall deficient forms. Liberated spores exhibited hairy appendages. The guanine + cytosine content in DNA was 36 to 37%. and the peptidoglycan type was A4α-lysine-asparagine. The strains shared the peptidoglycan type and GC% with B. sphaericus but were distinguished from this species by 16S rDNA sequencing, the amino acid in the interpeptide bridge of the peptidoglycan, true thermophily and whole cell fatty acid composition. Since the strains exhibited no high similarity to any previously described Bacillus species, the traits are proposed as a new species B. thermosphaericus sp. nov., with P-11 as the type strain.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
