Phyllobilins from Senescence-Associated Chlorophyll Breakdown in the Leaves of Basil (<i>Ocimum basilicum</i>) Show Increased Abundance upon Herbivore Attack
Simone Moser, Theresia Erhart, Sigrid Neuhauser, Bernhard Kräutler
Abstract
-YCC-45, exhibited previously unknown structures that were delineated by a thorough spectroscopic characterization. When basil leaves were infested with aphids or thrips or underwent fungal infections, areas with chlorosis were observed. HPLC analyses of the infested parts of leaves compared to those of the healthy parts showed a significant accumulation of PBs in the infested areas, demonstrating that the senescence-associated pheophorbide a oxygenase/phyllobilin (PAO/PB) pathway is activated by herbivore feeding and fungal infection.
Topics & Concepts
OcimumBasilicumSweet BasilBiologyChlorosisChlorophyllBotanyHerbPheophorbide ASalicylic acidHorticultureTraditional medicineBiochemistryMedicinal herbsMedicinePlant Stress Responses and TolerancePhotosynthetic Processes and MechanismsPlant Parasitism and Resistance