How do microcyclic rust differ frommacrocyclic rust?

Answer 1

In macrocyclic rustslike P. graminis, all five growth stages of the life cycle are apparent:

Teliospores

basidiospores

spermagonia/spermatia

Aeciospores

Uredospores

In microcyclic rusts like P. pachyrhiza, only uredospores and teliospores are observed, though in the soybean rust teliospores are not seen to germinate into basidiospores.

Answer 2

Microcyclic rust completes its life cycle with fewer spore stages compared to macrocyclic rust. Microcyclic rust typically produces fewer spore types and has a simpler infection process compared to macrocyclic rust.