Influence of pretreatment stresses on inhibitory effects of ferulic acid, an allelopathic phenolic acid

摘要: Experiments were conducted to determine the potential for acclimation (i.e., increased tolerance) allelopathic phenolic acids resulting from pretreatment of seedlings with allelochemical (ferulic acid), drought, or nutrient stress. Cucumber exposed stresses in a culture system nine days, starting day 3. Seedlings subsequently treated 5 hr 0, 0.25, 0.5, 0.75 mM ferulic acid. Acclimation (tolerance) was quantified by percentage inhibition net phosphorus uptake. grown acid drought more tolerant subsequent treatments uptake reduced). Nutrient stress eliminated inhibitory activity on The results suggest that general response variety can confer an tolerance plants such as