Fluoride mitigates aluminum-toxicity in barley: morpho-physiological responses and biochemical mechanisms.

ABSTRACT:

Background

To our knowledge, the role of exogenous fluoride (F^-) on aluminum (Al)-stress mitigation in plants has not been investigated yet. In this experiment, barley (Hordeum vulgaris) seedlings were exposed to excessive Al³⁺ concentrations (aluminum chloride, 0.5, 1.0, 2.0, 3.0, and 4.0 mM) with and without fluoride (0.025% sodium fluoride) to explore the possible roles of fluoride on the alleviation of Al-toxicity.

Results

Overall, Al-stress caused inhibition of growth and the production of photosynthetic pigments. Principal component analysis showed that the growth inhibitory effects were driven by increased oxidative stress and the interruption of water balance in barley under Al-stress. Fluoride priming, on the other hand, enhanced growth traits,

SUBMITTER: Dawood MFA 

PROVIDER: S-EPMC9190151 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature