Which method is followed for virus elimination in plants

Options

A. Antibiotic spray
B. Virucidal treatment
C. Shoot tip culture
D. Root apex culture

Answer

C

Explanation

Virus free plants from virus infection are obtained by shoot tip culture because in in vitro conditions viruses fail to grow but the host tissue grows and multiplies. Moreover, viruses don't reach the tip cell as there is no plasmodesmata and no phloem in tip cells to carry viruses. The concentration of auxin is very high in meristem cells which inhibits multiplication of viruses.