Germination of non-irradiated and gamma-irradiated fungal spores on water agar and natural soil.
Germination and germ-tube lengths of non-irradiated and gamma-irradiated spores of eight soil fungi were studied on water agar and on natural soil. Non-irradiated spores showed variable degrees of sensitivity to the fungistatic factor in natural soil. Lower doses of gamma-irradiation (5 K rad) produced stimulus to germination and germ-tube lengths without losing the fungistatic properties of the fungi concerned. Germination at the rest of treatments (100 and 500 K rad) showed significant inhibition, the magnitude of which is a function of the dose used. Germ-tube lengths did not follow the same pattern. The results are discussed in view of the nutritional theory of fungistasis.
D000528:Alternaria / Q000502:physiology; D001203:Ascomycota / Q000502:physiology; D001232:Aspergillus fumigatus / Q000502:physiology; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D003904:Mitosporic Fungi / Q000502:physiology; D009090:Mucorales / Q000502:physiology; D012987:Soil; D013172:Spores, Fungal / Q000502:physiology* / Q000528:radiation effects; D014242:Trichoderma / Q000502:physiology
D012987:Soil