Possible Interaction: Boron and Ascorbate

“Before starting BT treatment, half of the seedlings were retained in a … of H2S, 0.1 mM hypotaurine (HT), for 12 h. Boron toxicity led to a substantial decrease in dry biomass, leaf water … content, chlorophyll a, chlorophyll b, photosynthetic quantum yield (Fv/Fm), ascorbate (AsA) and … tomato plants.”

“ Boron alleviated some of the toxic effects of Al by decreasing redox states of AsA and enzyme activities involved in ascorbate-glutathione (AsA-GSH) cycle, ascorbate peroxidase, dehydroascorbate reductase, glutathione reductase and glutathione peroxidase while increased glutathione (GSH) content and γ-glutamylcysteine synthetase (γ-GCS) activity.”

“ Boron decreased the Al-stimulated ascorbate ( AsA ) synthesis by down-regulated AsA synthesis-related metabolites in the L-galactose pathway.”

“ Ascorbate added to the medium improved root growth in plants supplied with insufficient boron.”

“We propose that the action of boron in root meristems is associated with ascorbate metabolism.”