Abstract
Microsporum gypseum macroconidia germinated at 37 C possessed from one to eight nuclei per germinated spore compartment. The distribution of nuclei per spore compartment was the result of a random packaging of nuclei from the available nuclear population. Partial inhibition of germination by incubation at 25 C or at 37 C in the presence of 10−4m phenyl methyl sulfonyl-fluoride resulted in an enrichment of germinated spores containing high numbers of nuclei per compartment. The selection for higher nuclear numbers was statistically significant. Compartments possessing high numbers of nuclei appeared to be precommitted to spore germination since they were not sensitive to germination inhibition. The effect of incubation temperature variation on spore germination is discussed with respect to the organism's natural environment.
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- Heisenberg M., Cerdá-Olmedo E. Segregation of heterokaryons in the asexual cycle of Phycomyces. Mol Gen Genet. 1968;102(3):187–195. doi: 10.1007/BF00385973. [DOI] [PubMed] [Google Scholar]
- Hejtmánek M., Hejtmánková-Uhrová N. Weitere Untersuchungen über die Kernteilung in den Dermatophytenzellen. Mykosen. 1967 Jun 1;10(6):225–230. [PubMed] [Google Scholar]
- Leighton T. J., Stock J. J. Biochemical changes during fungal sporulation and spore germination. I. Phenyl methyl sulfonyl fluoride inhibition of macroconidial germination in Microsporum gypseum. J Bacteriol. 1970 Mar;101(3):931–940. doi: 10.1128/jb.101.3.931-940.1970. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Leighton T. J., Stock J. J. Heat-induced macroconidia germination in Microsporum gypseum. Appl Microbiol. 1969 Mar;17(3):473–475. doi: 10.1128/am.17.3.473-475.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lowry R. J., Durkee T. L., Sussman A. S. Ultrastructural studies of microconidium formation in neurospora crassa. J Bacteriol. 1967 Nov;94(5):1757–1763. doi: 10.4148/1941-4765.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- el-Ani A. S. The cytogenetics of the conidium in Microsporum gypseum and of pleomorphism and the dual phenomenon in fungi. Mycologia. 1968 Sep-Oct;60(5):999–1015. [PubMed] [Google Scholar]