Biology 3218F/G Lecture Notes - Lecture 29: Soybean Rust, Cystidium, Surface Tension
20 Sep 2016
School
Department
Course
Professor
Document Summary
Dispersal via air and water, and also animal vectors. Has deliquescence; or auto-digestion; edge of cap as it matures turns into black liquid and cap gradually opens, and black ink drops to the ground, carrying a lot of black spores. Majority of spores of this mushroom are actually air-dispersed; ones that drop in the black inky liquid are lost, and it"s not likely that they contribute to future generations. Arrangement of basidiospores on the basidium; spaced out by immature basidia in between. If you look at the vertical section, there are non-spore producing cells called cystidia, which are spacing the gills apart; it literally grows out and pushes on the other gill so it doesn"t get too close. What that does, b/c it"s only a small cylinder itself, is that it provides space for all the spores to drop between the 2 gills. When spores fall out and catch the air currents, they"ll disperse.
