This technology is about the efficacy and application of a plant defense protein originated from Lilium. Lilium plants produce a special defense protein capable of fighting against pathogen attack by killing the invaders and/or increasing plant disease resistance. In addition, this plant defense protein is able to increase plant photosynthetic efficiency and conduct anti-gray mold efficacy in tomato and strawberry.

The critical role in plant disease resistance of a plant defense protein from Lilium is verified in combination with the development of virus-induced gene silencing and adaptive Agrobacterium infiltration methods. The desired protein products is successfully produced in E. coli system, which has antimicrobial activity and inducing ability of plant disease resistance, also can increase plant photosynthetic efficiency.

Plant defense protein can improve plant growth and reduce crop loss to facilitate environment-friendly agriculture and sustainable natural ecosystem. Plant defense protein of growth-enhancing and resistance-increasing can be a plant protectant to reduce pathogen threats and balance plant growth/defense trade-off. The dilemma of crop production can be improved to achieve agricultural upgrade of both high production and environmental protection.