1. Polyphenolic responses of grapevine berries to light, temperature, oxidative stress, abscisic acid and jasmonic acid show specific developmental-dependent degrees of metabolic resilience to perturbation
- Author
-
Grant R. Cramer, Aaron Fait, Asfaw Degu, and Biruk Ayenew
- Subjects
0106 biological sciences ,0301 basic medicine ,Light ,Metabolite ,Berry ,Cyclopentanes ,Biology ,medicine.disease_cause ,01 natural sciences ,Analytical Chemistry ,Veraison ,03 medical and health sciences ,chemistry.chemical_compound ,Plant Growth Regulators ,medicine ,Vitis ,Oxylipins ,Abscisic acid ,Abiotic component ,Jasmonic acid ,Temperature ,food and beverages ,Polyphenols ,General Medicine ,Metabolism ,Oxidative Stress ,030104 developmental biology ,chemistry ,Biochemistry ,Fruit ,Metabolome ,Oxidative stress ,010606 plant biology & botany ,Food Science ,Abscisic Acid - Abstract
Grape-berries are exposed to a plethora of abiotic and biotic stimuli during their development. The developmental and temporal regulation of grape berry polyphenol metabolism in response to various cues was investigated using LC-QTOF-MS based metabolite profiling. High light (2500μmolm(-2)s(-1)), high temperature (40°C), jasmonic acid (200μM), menadione (120μM) and abscisic acid (3.026mM) treatments were applied to detached berries. Greater magnitudes of metabolite fluctuations characterize the pre-veraison berries than the veraison stage in response to the treatments. Furthermore, a tighter co-response of metabolic processes was shown at veraison, likely supporting the resilience to change in response to stress. High temperature and ABA treatments led to greater magnitudes of change during the course of the experiment. The present study demonstrates the occurrence of differential patterns of metabolic responses specific to individual cues and berry developmental stage, which in the field are commonly associated and thus hardly discernable.
- Published
- 2015