A TEMPERATURE SENSITIVE CELL DIVISION MUTANT IN <i>PARAMECIUM CAUDATUM</i>
نویسندگان
چکیده
منابع مشابه
Temperature-sensitive mutant vaccines.
Many live virus vaccines derived by empirical routes exhibit temperature-sensitive (ts) phenotypes. The live virus vaccines that have been outstandingly successful in controlling poliomyelitis are the prime example of this phenomenon. The three live attenuated strains developed by Sabin were derived from wild-type isolates by rapid sequential passage at high multiplicity of infection in monkey ...
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After treatment with nitrosoguanidine a mutation to temperature sensitivity was obtained in Tetrahymena pyriformis, syngen 1. The trait is controlled by a recessive allele, ts, at a locus linked to serotype locus T. I S is completely recessive, unlike any other allele studied in this organism, and the heterozygotes do not show vegetative assortment. The cross which revealed the linkage of ts an...
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Optimal conditions for induction of synchronous cell division in Tetrahymena thermophila have been investigated. Wild type cells and a mutant, NP1, with temperature sensitive oral development have been used. NPI forms no food vacuoles after long exposures to 37~ or higher temperatures. According to one temperature regime both clones were grown at 30~ and exposed to five 30 min heat shocks at 42...
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A temperature-sensitive aggregateless and stalkless mutant was isolated from Dictyostelium discoideum NC-4. The mutant cells cannot aggregate at 27 degrees C, but aggregate and form normal fruiting bodies at 21 degrees C. When the temperature was shifted to 27 degrees C after aggregation at 21 degrees C, almost all of the cells in the aggregate differentiated into spores. Neither stalk cells no...
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ژورنال
عنوان ژورنال: The Japanese Journal of Genetics
سال: 1975
ISSN: 0021-504X,1880-5787
DOI: 10.1266/jjg.50.273