Biology Question on biological classification

Question

Black rust of wheat is caused by

Answer 1

Solution

Black rust of wheat is caused by Puccinia.

Rust diseases are the most economically significant fungal diseases in wheat and other cereal crops worldwide. Stem rust, also known as black rust, is caused by thefungusPuccinia graminis f. sp. tritici. It infects wheat and other cereals across all U.S. growing regions. The infection causes small brown pustules on the leaf blades that may cause up to 20% yield loss. The plant develops patches if it gets severely affected. It spreads via airborne spores. Several species of this genus like tritici, rubigo-vera cause similar kinds of pathogenicity. Puccinia requires a moist climate to grow.

Therefore, the correct answer isoption A.