Salicylic acid alleviates chromium (VI) toxicity by restricting its uptake, improving photosynthesis and augmenting antioxidant defense in Solanum lycopersicum L

2021 ◽  
Author(s):  
Samta Gupta ◽  
Chandra Shekhar Seth
Keyword(s):  
Salicylic Acid ◽  
Solanum Lycopersicum ◽  
Antioxidant Defense ◽  
Solanum Lycopersicum L ◽  
Chromium Vi

scholarly journals Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) Under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems

Antioxidants ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 350 ◽  
Author(s):  
Parvin ◽  
Hasanuzzaman ◽  
Bhuyan ◽  
Nahar ◽  
Mohsin ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Nutrient Solution ◽  
Stress Responses ◽  
Antioxidant Defense ◽  
Oxygen Species ◽  
Tomato Plants ◽  
Solanum Lycopersicum L ◽  
Post Stress

Salinity toxicity and the post-stress restorative process were examined to identify the salt tolerance mechanism in tomato, with a focus on the antioxidant defense and glyoxalase systems. Hydroponically grown 15 day-old tomato plants (Solanum lycopersicum L. cv. Pusa Ruby) were treated with 150 and 250 mM NaCl for 4 days and subsequently grown in nutrient solution for a further 2 days to observe the post-stress responses. Under saline conditions, plants showed osmotic stress responses that included low leaf relative water content and high proline content. Salinity induced oxidative stress by the over-accumulation of reactive oxygen species (H2O2 and O2•−) and methylglyoxal. Salinity also impaired the non-enzymatic and enzymatic components of the antioxidant defense system. On the other hand, excessive Na+ uptake induced ionic stress which resulted in a lower content of other minerals (K+, Ca2+, and Mg2+), and a reduction in photosynthetic pigment synthesis and plant growth. After 2 days in the normal nutrient solution, the plants showed improvements in antioxidant and glyoxalase system activities, followed by improvements in plant growth, water balance, and chlorophyll synthesis. The antioxidant and glyoxalase systems worked in concert to scavenge toxic reactive oxygen species (ROS), thereby reducing lipid peroxidation and membrane damage. Taken together, these findings indicate that tomato plants can tolerate salinity and show rapid post-stress recovery by enhancement of their antioxidant defense and glyoxalase systems.

Response of Tomato (Solanum lycopersicum L.) to Salicylic Acid and Calcium

2017 ◽  
Vol 15 (2) ◽  
pp. 1-7
Author(s):  
Nigar Afsana ◽  
Mohammad Islam ◽  
Elias Hossain ◽  
Rezowana Nizam ◽  
Nipa Monalesa ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Solanum Lycopersicum ◽  
Solanum Lycopersicum L

scholarly journals A GC-ECD Method for Estimation of Free and Bound Amino Acids, γ-Aminobutyric Acid, Salicylic Acid, and Acetyl Salicylic Acid from Solanum lycopersicum (L.)

2011 ◽  
Vol 94 (1) ◽  
pp. 232-242 ◽  
Author(s):  
Hari Charan Meher ◽  
Vijay T Gajbhiye ◽  
Ghanendra Singh
Keyword(s):  
Amino Acids ◽  
Salicylic Acid ◽  
Solanum Lycopersicum ◽  
Iodoacetic Acid ◽  
Operating Conditions ◽  
Aminobutyric Acid ◽  
Acetyl Salicylic Acid ◽  
Electron Capture Detection ◽  
Acid Vapor ◽  
Solanum Lycopersicum L

Abstract A gas chromatograph with electron capture detection method for estimation of selected metabolites—amino acids (free and bound), γ-aminobutyric acid (GABA), salicylic acid (SA), and acetyl salicylic acid (ASA) from tomato—is reported. The method is based on nitrophenylation of the metabolites by 1-fluoro-2,4-dinitrobenzene under aqueous alkaline conditions to form dinitrophenyl derivatives. The derivatives were stable under the operating conditions of GC. Analysis of bound amino acids comprised perchloric acid precipitation of protein, alkylation (carboxymethylation) with iodoacetic acid, vapor-phase hydrolysis, and derivatization with 1-fluoro-2,4-dinitrobenzene in that order. The metabolites were resolved in 35 min, using a temperature-programmed run. The method is rapid, sensitive, and precise. It easily measured the typical amino acids (aspartate, asparagine, glutamate, glutamine, alanine, leucine, lysine, and phenylalanine) used for identification and quantification of a protein, resolved amino acids of the same mass (leucine and isoleucine), satisfactorily measured sulfur amino acids (methionine, cystine, and cysteine), and quantified GABA, SA, and ASA, as well. The developed method was validated for specificity, linearity, and precision. It has been applied and recommended for estimation of 25 metabolites from Solanum lycopersicum (L.).

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