GENETIC CONTROL OF HETEROCARYOSIS IN NEUROSPORA CRASSA
نویسندگان
چکیده
منابع مشابه
Heterocaryosis in Neurospora Crassa.
T IS possible by means of X-ray or ultraviolet treatment to produce mutant I strains of Neurospora crassa that are deficient in their abilities to synthesize specific vitamins, amino acids, or other essential substances (BEADLE and TATUM 1941; TATUM and BEADLE 1g4zb). It occurred to us that it might be possible to determine whether the mutant genes concerned in such haploid strains are recessiv...
متن کاملControl of trehalase synthesis in Neurospora crassa.
When an aconidial strain (STL6A) of Neurospora crassa is grown on carbon sources such as glucose, maltose, sucrose, etc., trehalase activity per unit weight of mycelium is very low. By contrast, media containing arabinose, glutamic acid, glycine, etc., which support growth only poorly, produce mycelium with very high trehalase activity. Retarding growth limiting the supply of a necessary nutrie...
متن کاملFixed genetic instability in Neurospora crassa.
NE of the most convincingly documented genetic phenomena is the great Ovariabi l i t y in spontaneous mutation frequencies at different genetic sites. This variability is seen most readily in BENZER’S topographic maps of the rII region of phage T4 in which the linear distributions of mutants of different origins are compared (BENZER 1961). Restricting our attention to spontaneously arising muta...
متن کاملRapid genetic mapping in Neurospora crassa.
Forward genetic analysis is the most broadly applicable approach to discern gene functions. However, for some organisms like the filamentous ascomycete Neurospora crassa, genetic mapping frequently represents a limiting step in forward genetic approaches. We describe an efficient method for genetic mapping in N. crassa that makes use of a modified bulked segregant analysis and PCR-based molecul...
متن کاملBiotransformation of Hydrocortisone by Neurospora crassa
The ability of Neurospora crassa FGSC 4335 in the biotransformation of hydrocortisone was investigated. The microorganism produced two major metabolites after incubation with the substrate for seven days. Each microbial product was purified chromatographically and identified on the basis of spectral data. The products were identified as 11?,17?,20?,21-tetrahydroxypregn-4-en-3-one (II) and 11?-h...
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ژورنال
عنوان ژورنال: Genetics
سال: 1955
ISSN: 1943-2631
DOI: 10.1093/genetics/40.1.117