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Which pathogen causes stem gall disease in coriander?
Question

Which pathogen causes stem gall disease in coriander?

A.

Agrobacterium radiobacter

B.

Anguina tritici

C.

Protomyces macrosporus

D.

Agrobacterium tumefaciens

E.

Question not attempted

Correct option is C


Correct option (c) Protomyces macrosporus
· Causes stem gall disease of coriander.
· Produces tumor-like swellings on stems and petioles.
· Belongs to Ascomycetes.
Other options:
· (a) Agrobacterium radiobacter – Non-pathogenic.
· (b) Anguina tritici – Ear cockle of wheat.
· (d) Agrobacterium tumefaciens – Crown gall.

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