Question

Identify the correctly matched pair a)Actinomycete – Late blight b)Mycoplasma – lumpy jaw c)Bacteria – Crown gall d)Fungi – sandal spike

Answer 1

Answer:

C

Explanation:

Agrobacterium causes crown gall in rose family.

Answer 2

Answer:

c) Bacteria- Crown Gall

Explanation:

• Crown gall disease is caused by bacteria called Agrobacterium tumefaciens.

• It is a type of plant disease. This bacteria causes protruded swelling of the roots or stems of the plants.
• It looks like a ball-like structure or gall.
• It is quite an infectious disease for herbaceous plants and enters through a wound or cut in the plant parts. It infects by transmitting its plasmid into the host plant.
• The crown or the base of the plant should be kept as dry as possible to avoid infection.
• Late blight is caused by Phytophthora infestans
• Lumpy jaw happens due to a bacteria named Actinomyces bovis.
• Sandal spike disease happens due to phytoplasma.

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