Vanadium toxicity was alleviated by supplementation of silicon in tomato seedlings: Upregulating antioxidative enzymes and glyoxalase system.
Plant Physiol Biochem
; 213: 108809, 2024 Aug.
Article
in En
| MEDLINE
| ID: mdl-38875778
ABSTRACT
The primary goal of this research is to investigate the mitigating effect of silicon (Si; 2 mM) on the growth of tomato seedlings under vanadium (V; 40 mg) stress. V stress caused higher V uptake in leaf, and enhanced concentration of leaf anthocyanin, H2O2, O2â¢-, and MDA, but a decreased in plant biomass, root architecture system, leaf pigments content, mineral elements, and Fv/Fm (PSII maximum efficiency). Si application increased the concentrations of crucial antioxidant molecules such as AsA and GSH, as well as the action of key antioxidant enzymes comprising APX, GR, DHAR, and MDHAR. Importantly, oxidative damage was remarkably alleviated by upregulation of these antioxidant enzymes genes. Moreover, Si application enhanced the accumulation of secondary metabolites as well as the expression their related-genes, and these secondary metabolites may restricted the excessive accumulation of H2O2. In addition, Si rescued tomato plants against the damaging effects of MG by boosting the Gly enzymes activity. The results confirmed that spraying Si to plants might diminish the V accessibility to plants, along with promotion of V stress resistance.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Silicon
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Vanadium
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Solanum lycopersicum
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Seedlings
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Antioxidants
Language:
En
Journal:
Plant Physiol Biochem
/
Plant, physiology and biochemistry
/
Plant. physiol. biochem
Journal subject:
BIOQUIMICA
/
BOTANICA
Year:
2024
Document type:
Article
Country of publication: