Mild Strain Cross-Protection in Passion Fruit

Area of Science:

• Plant pathology
• Virology
• Agricultural science

Background:

• Cross-protection is a natural phenomenon where mild viral infections shield plants from severe ones.
• This strategy has been used for plant disease management since the 1920s.
• Telosma mosaic virus (TelMV) is an emerging Potyvirus threatening passion fruit production.

Purpose of the Study:

• To develop a protocol for screening mild TelMV strains.
• To evaluate the application of mild TelMV strains in protecting passion fruit against severe infections.

Main Methods:

• Screening of mild Telosma mosaic virus (TelMV) strains.
• Application of selected mild strains for cross-protection in passion fruit.

Main Results:

• A protocol for screening mild TelMV strains was successfully established.
• Mild TelMV strains demonstrated efficacy in protecting passion fruit against severe TelMV infections.

Conclusions:

• The developed protocol offers an efficient strategy for managing TelMV in passion fruit.
• This framework can be adapted for cross-protection against other plant viruses.