Nejvíce citovaný článek - PubMed ID 4111702
Effect of prolonged cultivation in a chemostat under nitrogen limitation on the morphology and ultrastructure of Bacillus subtilis
Anomalous forms of Bacillus subtilis A32 produced by prolonged cultivation in a chemostat under nitrogen limitation are described. A change in the cultivation conditions brought about a transformation of these forms to bacillar rods. The transformation was gradual and lasted for several generations.
The effect of temperature on extracellular alpha-amylase synthesis and chromosomal and plasmid DNA replication in Bacillus subtilis A18 carrying plasmid pMI10 was studied. The specific growth rate mu increased with elevated temperature up to 42.5 degrees C, while the activities of alpha-amylase per population dry mass decreased. No obvious quantitative changes of 14C-thymidine incorporation per dry mass increase and no basic differences in plasmid copy number in the range of temperatures from 25 to 40 degrees C were found.
- MeSH
- alfa-amylasy biosyntéza MeSH
- Bacillus subtilis metabolismus MeSH
- replikace DNA * MeSH
- teplota MeSH
- thymidin metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- alfa-amylasy MeSH
- thymidin MeSH
Anomalous forms of Bacillus subtilis A 32 produced by prolonged cultivation in a chemostat under nitrogen limitation are described. A change in the cultivation conditions brings about a transformation of these forms to bacillar rods. The transformation is gradual and lasts for several generations.
