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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
1
|
| pubmed:dateCreated |
1989-2-8
|
| pubmed:abstractText |
The effect of UV irradiation on viability and mutant colony frequency in the Mollicute Spiroplasma citri was investigated at 3 phases of growth. The first UV-induced mutants obtained in Mollicutes were selected: xylitol-resistant (XylR) and arsenic acid-resistant mutants (ArsR). Lethal and mutation frequency responses of S. citri cells increase with the age of the cell cultures. In all UV-irradiated populations, light exposure slightly increases the number of survivors and decreases the induced mutation frequency; liquid holding conditions increase the number of both survivors and mutant colonies. This suggests that, in UV-irradiated S. citri cells maintained under liquid holding conditions, there is no dark reactivation but induction of an error-prone repair system of the SOS type. In S. citri, the error-free light and dark repair systems are inefficient. Results allow the development of a method to select UV-induced mutations usable as markers in genetic studies of Spiroplasma cells.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jan
|
| pubmed:issn |
0027-5107
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
210
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
135-41
|
| pubmed:dateRevised |
2006-11-15
|
| pubmed:meshHeading | |
| pubmed:year |
1989
|
| pubmed:articleTitle |
Lethal and mutation frequency responses of Spiroplasma citri cells to UV irradiation.
|
| pubmed:affiliation |
Laboratoire de Génétique Moléculaire, Université de Bordeaux II, Pont-de-la-Maye, France.
|
| pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|