Distinguish between persistent and non persistent transmission of virus
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Persistent transmission of viruses. Aphids are the most important vectors of viruses. They transmit viruses in potatoes in a persistent and non-persistent manner. In persistent transmission, the aphid cannottransmit the virus directly to healthy plants after it has fed on a diseased plant.
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The difference between persistent and non-persistent transmission of virus is as follows
Persistent transmission of virus:
In Persistent transmission of virus the aphids, that is the vectors of the virus should not only feed on the virus but also should become a part of the circulation before it attacks healthy plants.
Non-persistent transmission of virus:
In non-persistent transmission of virus the aphids of the virus should just feed on the plant to infect a healthy plant.
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