Effects of temperature and antibiotics on appressorium formation in spores of Colletotrichum lagenarium.
Effects of temperature (32 degrees C), cycloheximide, and blasticidin-S on spore germination and appressorium formation of Colletotrichum lagenarium were investigated. Temperature treatment at 32 degrees C, given just before the emergence of the germ tube 4 h after incubation at 24 degrees C, significantly inhibited appressorium formation. Cycloheximide (1 ppm) or blasticidin-S (7 ppm) appeared to have reversed the effect of 32 degrees C treatment by producing appressoria in 30% of the germinated spores.
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D003513:Cycloheximide / Q000494:pharmacology*; D006146:Guanidines / Q000494:pharmacology; D003904:Mitosporic Fungi / Q000187:drug effects / Q000254:growth & development*; D013172:Spores, Fungal / Q000187:drug effects / Q000254:growth & development; D013696:Temperature
D000900:Anti-Bacterial Agents; D006146:Guanidines; D003513:Cycloheximide