Cytological and Deoxyribonucleic Acid-Deoxyribonucleic Acid Hybridization Studies on Lactobacillus Isolates from San Francisco Sourdough
نویسندگان
چکیده
منابع مشابه
Deoxyribonucleic acid-deoxyribonucleic acid hybridization of R factors.
A new method of estimating deoxyribonucleic acid homology is presented and used to measure the homology between bacterial plasmids of different compatibility groups. Deoxyribonucleic acid of the P-group plasmid RP1, originally isolated in Pseudomonas aeruginosa, has considerable (50%) homology with an N-group plasmid of the Enterobacteriaceae.
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Deoxyribonucleic acid (DNA)-DNA hybridization on nitrocellulose filters can be used to assay for replication origin DNA from Escherichia coli if the DNA attached to the filters is enriched for the replication origin sequences. Such DNA can be readily isolated from very rapidly growing cells. When low amounts of this DNA were attached to filters, radioactively labeled DNA from the replication or...
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An increase in the rate of synthesis of ara-specific messenger ribonucleic acid as measured by deoxyribonucleic acid-ribonucleic acid hybridization has been detected in the induced wild-type (ara(+)) strain of Escherichia coli B/r as compared with the uninduced control, thus providing evidence that regulation of the positively controlled l-arabinose operon is at the level of transcription.
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Triostin antibiotics, which contain a cyclic peptide with a disulphide bridge, have been prepared by growing Streptomyces triostinicus in the presence of inorganic [3PS]sulphate. The labelled triostin A has been shown to behave in all respects similarly to the authentic natural product and to enable a much more sensitive radiochemical adaptation of the solvent-partition method for determining a...
متن کاملDeoxyribonucleic Acid
The effects of the three antibiotics U-12,241, nogalamycin, and U-20,661 on (i) deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) synthesis in KB cell cultures and cell-free systems of bacterial and mammalian origin and on (ii) oxidative phosphorylation in rat liver mitochondria were compared. Nogalamycin and U-12,241 inhibited RNA synthesis more strongly than DNA synthesis in all test sys...
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ژورنال
عنوان ژورنال: Applied Microbiology
سال: 1973
ISSN: 0003-6919
DOI: 10.1128/am.25.3.461-470.1973