In virus-infected plants, the meristematic tissues in both apical and axillary buds are free of virus because
| 1. | the dividing cells are virus resistant |
| 2. | meristems have antiviral compounds |
| 3. | the cell division of meristems are faster than the rate of viral multiplication |
| 4. | viruses cannot multiply within meristem cell(s) |
free of virus because the multiplication of meristematic cells is faster than rephcation of viruses.
The main reason behind it is the gene silencing. Neither dividing cells are virus resistant
nor the meristems have antiviral compounds.
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