TITLE:
Induction of Biochemical Changes in Santa Teriza Lime Leaves by Chitosan Application Influence Citrus Leaf Miner Damage
AUTHORS:
Batoul Ahmad, Sawsan Suleiman, Mohammed Ahmad
KEYWORDS:
Citrus, Chitosan, Peroxidase, Polyphenol Oxidase, Total Phenolic Content, Phyllocnistis citrella
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.13 No.3,
March
25,
2022
ABSTRACT: The effect of foliar spray
of young lemon trees with Chitosan (CH) (200 - 300 - 400 ppm), on antioxidant enzymes activities (peroxidase POD, polyphenol
oxidase PPO) and total phenolic content, and their influence on leaf miner (Phyllocnistis citrella) activity (tunnel
length and damage density) under field condition was investigated. The results
showed that treatment with chitosan 300 ppm enhanced the total phenolic content
(5.975 mg/g) and the POD activity (0.533 min-1 mg-1 protein), while PPO
activity was increased by chitosan 200 ppm (1.394 ΔA/min/g FW). The results
demonstrated as well that chitosan treatment has a beneficial effect in
reducing leaf miner activity, by decreasing tunnel length and damage density.