Among rust, smut and mushroom, two of them
(1) are pathogens
(2) are saprobes
(3) bear ascocarps
(4) bear basidiocarps
Audio Explanation:
(1) Rust and smut belong to the group of pathogenic fungi. These fungi belong to the class basidiomycetes, and produce basidiospores. Mushroom are placed in the order agaricales. Rusts and smuts are included in the subclass teliomycetidae. Rust fungi comes under order uredinales, eg. Puccinia graminis causes black rust of wheat, P. recondita causes leaf rust of wheat. Smut fungi comes under order ustilaginales which produce teliotospores, eg. Ustilago tritici causes loose smut of wheat.
Difficulty Level: