Virulence in phage populations infecting Halobacterium cutirubrum
نویسندگان
چکیده
منابع مشابه
Partial purification and properties of Halobacterium cutirubrum L-alanine dehydrogenase.
1. Halobacterium cutirubrum L-alanine dehydrogenase was purified approx. 100-fold. 2. It has a mol. wt. of 72 500, about one-third that of two well-studied alanine dehydrogenases from non-halophiles. 3. The activity of the enzyme increases with temperature up to 70 degrees C, but the protein itself is not thermostable. 4. In the reductive amination reaction, the enzyme is fully active in the pr...
متن کاملEvidence for the lack of deoxyribonucleic acid dark-repair in Halobacterium cutirubrum.
1. Halobacterium cutirubrum does not perform dark-repair of DNA either after u.v. irradiation or during normal growth. 2. Cultures irradiated with u.v. are readily photoreactivated, but do not recover viability in the dark. 3. No increase in the rate of DNA synthesis is observed in the surviving cells after u.v. irradiation. 4. At early times during normal semiconservative replication, newly in...
متن کاملMutual exclusion between an infecting phage and a carried phage.
When bacteria are simultaneously or consecutively infected by two dissimilar phages, any one bacterium yields, upon lysis, phage particles of one or the other of the parental types, never of both types (Delbriick and Luria, 1942; Delbruick, 1945). This phenomenon has been called mutual exclusion; the mechanism responsible for it is at present unknown. Recent work by Lwoff and his collaborators ...
متن کاملMechanism of dissolution of envelopes of the extreme halophile Halobacterium cutirubrum.
Onishi, H. (National Research Council, Ottawa, Ontario, Canada), and D. J. Kushner. Mechanism of dissolution of envelopes of the extreme halophile Halobacterium cutirubrum. J. Bacteriol. 91:646-652. 1966.-Envelopes of Halobacterium cutirubrum dissolved rapidly in media of low ionic strength. Heating partially inhibited breakdown, probably because of nonspecific protein coagulation rather than i...
متن کاملEffect of monovalent cations on the malic enzyme from the extreme halophile, Halobacterium cutirubrum.
The malic enzyme from Halobacterium cutirubrum requires monovalent cations for both activation and stabilization. NaCl, the best stabilizer, is ineffective as activator; NH(4)Cl, the best activator, is a poor stabilizer. These results support the idea that the roles of salts in both processes are different.
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ژورنال
عنوان ژورنال: FEMS Microbiology Ecology
سال: 1998
ISSN: 0168-6496,1574-6941
DOI: 10.1111/j.1574-6941.1998.tb00466.x