Silicon-regulated antioxidant and osmolyte defense and methylglyoxal detoxification functions co-ordinately in attenuating fluoride toxicity and conferring protection to rice seedlings.

  title={Silicon-regulated antioxidant and osmolyte defense and methylglyoxal detoxification functions co-ordinately in attenuating fluoride toxicity and conferring protection to rice seedlings.},
  author={Ankur Singh and Aryadeep Roychoudhury},
  journal={Plant physiology and biochemistry : PPB},
Seedling Priming with Sodium Nitroprusside Rescues Vigna radiata from Salinity Stress-Induced Oxidative Damages
The main focus of this manuscript was to highlight the efficacy of seedling priming with 0.06 mM sodium nitroprusside (SNP), a potent NO donor in the alleviation of salt-induced oxidative and ionic
Fluoride tolerance in rice is negatively regulated by the 'stress-phytohormone' abscisic acid (ABA), but promoted by ABA-antagonist growth regulators, melatonin, and gibberellic acid.
The present manuscript aimed at investigating whether abscisic acid (ABA) promotes fluoride tolerance, similar to inciting salt adaptation in rice. Seeds of three salt-tolerant rice genotypes were
Differential Responses of Vigna radiata and Vigna mungo to Fluoride-Induced Oxidative Stress and Amelioration via Exogenous Application of Sodium Nitroprusside
The manuscript aimed to explore the differential responses of Vigna radiata and Vigna mungo to fluoride (25 mg L −1 NaF) stress and validate the protective roles of sodium nitroprusside (SNP) (50
Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance
This review paper summarizes biological processes for fluoride remediation, i.e., bioaccumulation in plants and microbially assisted systems, and recommends the practical applicability and sustainability of microbial bioremediation of fluoride in different environments.
Salicylic acid–mediated alleviation of fluoride toxicity in rice by restricting fluoride bioaccumulation and strengthening the osmolyte, antioxidant and glyoxalase systems
Overall, the manuscript depicts the pivotal role played by exogenous SA in ameliorating the effects of fluoride-induced damages in the seedlings and proves its potentiality as a protective chemical against fluoride stress when applied exogenously in rice.


Silicon-induced antioxidant defense and methylglyoxal detoxification works coordinately in alleviating nickel toxicity in Oryza sativa L.
Results suggest that the exogenous Si application can improve rice seedlings’ tolerance to Ni-toxicity and up-regulated most of the antioxidant defense components as well as glyoxalase systems, which helped to improve ROS scavenging and MG detoxification.
Seed priming with calcium compounds abrogate fluoride-induced oxidative stress by upregulating defence pathways in an indica rice variety
The efficacy of calcium compounds as priming agents in abrogating fluoride toxicity in rice was highlighted, and Ca(OH) 2 (0.3 mM) appeared to be the most efficient of all the three priming agent.
Spermidine application reduces fluoride uptake and ameliorates physiological injuries in a susceptible rice cultivar by activating diverse regulators of the defense machinery
Spd treatment ameliorated fluoride-mediated injuries in IR-64 by restricting fluoride uptake, refining the defense machinery and activating the ABA-dependent as well as ABA -independent stress-responsive genes.
Influence of Silicon on Sunflower Cultivars under Drought Stress, I: Growth, Antioxidant Mechanisms, and Lipid Peroxidation
It can be concluded that applied Si alleviates drought stress in sunflower cultivars by preventing membrane damage, although the cultivars showed genotypic variation in response to applied Si.
Silicon and salicylic acid confer high-pH stress tolerance in tomato seedlings
It is demonstrated that Si and SA play critical roles in improving alkaline stress tolerance in tomato seedlings, by modifying the endogenous Na+ and K+ contents, regulating oxidative damage and key genes and modulating endogenous hormone levels.
Silicon ameliorates manganese toxicity in cucumber by decreasing hydroxyl radical accumulation in the leaf apoplast.
Results indicate that Si contributes indirectly to a decrease in ·OH in the leaf apoplast by decreasing the free apoplastic Mn(2+), thus regulating the Fenton reaction in vitro.
Effect of Fluoride on Catalase, Guiacol Peroxidase and Ascorbate Oxidase Activities in Two Verities of Mulberry Leaves (Morus alba L.)
Abstact: A regulated balance between oxygen radical production and destruction is required of metaboli c efficiency and function is to be maintained either in normal or toxic conditions. A