Question

Name the causative microorganism which causes (a) rust in wheat (b) blast in paddy (c) yellow vein mosaic in bhindi ( okra)

Answer 1

Answer:

The microorganisms that cause the following diseases are given below:

(a) Rust in wheat: Puccinia rust fungus

Black rust is caused by : Puccinia triticina

Brown rust is caused by: Puccinia recondita

Yellow rust is caused by: Puccinia striiformis

(b) Blast in paddy: Magnaporthe oryzae

This was previously known as Magnaporthe grisea.

(c) Yellow vein mosaic in okra: monopartite Begomovirus - Bhendi Yellow vein mosaic virus belonging to the family of Geminiviridae.

Answer 2

The Causative microorganism which causes rust disease in wheat is a fungus named  Puccinia triticina. This fungi disease can be found mostly in the temperate climate particularly in winter. Nearly 20 percent of yield is subject to loss because of this rust disease.

The causative microorganism which causes blast is paddy is a fungus named Magnaporthe oryzae. Blast is one of the severe diseases that affects the yield of paddy. Most  part of the plant from leaf to leaf sheaths can be affected by the Magnaporthe oryzae.

The causative microorganism which causes yellow vein mosaic in Okra is a virus named monopartite Begomovirus also known as Bhendi yellow vein mosaic virus.