Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-2-17
pubmed:abstractText
Bacillus anthracis, the causative agent of the human disease anthrax, Bacillus cereus, a food-borne pathogen capable of causing human illness, and Bacillus thuringiensis, a well-characterized insecticidal toxin producer, all cluster together within a very tight clade (B. cereus group) phylogenetically and are indistinguishable from one another via 16S rDNA sequence analysis. As new pathogens are continually emerging, it is imperative to devise a system capable of rapidly and accurately differentiating closely related, yet phenotypically distinct species. Although the gyrB gene has proven useful in discriminating closely related species, its sequence analysis has not yet been validated by DNA:DNA hybridization, the taxonomically accepted "gold standard". We phylogenetically characterized the gyrB sequences of various species and serotypes encompassed in the "B. cereus group," including lab strains and environmental isolates. Results were compared to those obtained from analyses of phenotypic characteristics, 16S rDNA sequence, DNA:DNA hybridization, and virulence factors. The gyrB gene proved more highly differential than 16S, while, at the same time, as analytical as costly and laborious DNA:DNA hybridization techniques in differentiating species within the B. cereus group.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0167-7012
pubmed:author
pubmed:issnType
Print
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
383-94
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:14967230-Bacillus, pubmed-meshheading:14967230-Bacillus anthracis, pubmed-meshheading:14967230-Bacillus cereus, pubmed-meshheading:14967230-Bacillus thuringiensis, pubmed-meshheading:14967230-Bacterial Toxins, pubmed-meshheading:14967230-Bacterial Typing Techniques, pubmed-meshheading:14967230-DNA, Bacterial, pubmed-meshheading:14967230-DNA, Ribosomal, pubmed-meshheading:14967230-DNA Gyrase, pubmed-meshheading:14967230-Enterotoxins, pubmed-meshheading:14967230-Genes, Bacterial, pubmed-meshheading:14967230-Hemolysis, pubmed-meshheading:14967230-Nucleic Acid Hybridization, pubmed-meshheading:14967230-Phylogeny, pubmed-meshheading:14967230-RNA, Ribosomal, 16S, pubmed-meshheading:14967230-Sequence Analysis, DNA, pubmed-meshheading:14967230-Sequence Homology, pubmed-meshheading:14967230-Serotyping, pubmed-meshheading:14967230-Starch, pubmed-meshheading:14967230-Virulence
pubmed:year
2004
pubmed:articleTitle
gyrB as a phylogenetic discriminator for members of the Bacillus anthracis-cereus-thuringiensis group.
pubmed:affiliation
Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. mtladuc@jpl.nasa.gov
pubmed:publicationType
Journal Article, Comparative Study