Antagonistic actions of boron against inhibitory effects of aluminum toxicity on growth CO2 assimilation ribulose-15-bisphosphate carboxylase/oxygenase and photosynthetic electron transport probed by the JIP-test of Citrus grandis seedlings

摘要

BackgroundLittle information is available on the amelioration of boron (B) on aluminum (Al)-induced photosynthesis inhibition. Sour pummelo (Citrus grandis) seedlings were irrigated for 18 weeks with nutrient solution containing 4 B levels (2.5, 10, 25 and 50 μM H3BO3) × 2 Al levels (0 and 1.2 mM AlCl3·6H2O). The objectives of this study were to determine how B alleviates Al-induced growth inhibition and to test the hypothesis that Al-induced photosynthesis inhibition can be alleviated by B via preventing Al from getting into shoots.