Question

name the causal organisms of following plant diseases.

a) rust of wheat
b) yellow vein mosaic of ladyfinger​

Answer 1

Answer:

a) Puccinia recondita

b) viral disease caused by monopartite Begomovirus affecting okra plants

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Answer 2

Answer:

a) Puccinia graminis causes "stem or black rust", P. triticina causes "leaf or brown rust", and P. striiformis causes "strip or yellow rust". It is the most prevalent of all the wheat rust diseases, occurring in most wheat growing regions.

b) The causal agent for yellow vein mosaic of bhindi is the single-stranded DNA Bhendi yellow vein mosaic virus (BYVMV), which is associated with a β-satellite, both of which are required for infection. BYVMV belongs to the genus Begomovirus, family Geminiviridae.

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