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Meristems escape virus invasion because
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- vascular system is absent in the meristem
- of low metabolic activity in the meristem
- the ‘virus inactivating system’ has low activity in the meristem
- of low endogenous auxin level
Correct Option: A
The various reasons attributed to the escape of the meristems by virus invasion are :
(a)Viruses move readily in a plant body through the vascular system which in meristems is absent,
(b)A high metabolite activity in the actively dividing meristematic cells does not allow virus replication and
(c)A high endogenous auxin level in shoot apices may inhibit virus multiplication.
