The γ-Aminobutyric Acid (GABA) Towards Abiotic Stress Tolerance

Srivastava, Vikas; Mishra, Sonal; Chowdhary, Aksar Ali; Lhamo, Skalzang; Mehrotra, Shakti

doi:10.1007/978-3-030-80674-3_7

Cited by 12 publications

(10 citation statements)

References 84 publications

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“…GABA is produced endogenously through the GABA shunt, and many stressors can induce its production. Several studies have confirmed that it has a significant priming effect when used as an exogenous compound [ 193 ]. In most plants, GABA appears to provide exceptional protection against various abiotic stresses, as it reduces oxidative damage by inducing antioxidant defense, increases the presence of osmolytes, and balances tissue turgor [ 194 ].…”

Section: Discussionmentioning

confidence: 99%

Emerging Trends in Non-Protein Amino Acids as Potential Priming Agents: Implications for Stress Management Strategies and Unveiling Their Regulatory Functions

Decsi,

Ahmed,

Rizk

et al. 2024

IJMS

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Plants endure the repercussions of environmental stress. As the advancement of global climate change continues, it is increasingly crucial to protect against abiotic and biotic stress effects. Some naturally occurring plant compounds can be used effectively to protect the plants. By externally applying priming compounds, plants can be prompted to trigger their defensive mechanisms, resulting in improved immune system effectiveness. This review article examines the possibilities of utilizing exogenous alpha-, beta-, and gamma-aminobutyric acid (AABA, BABA, and GABA), which are non-protein amino acids (NPAAs) that are produced naturally in plants during instances of stress. The article additionally presents a concise overview of the studies’ discoveries on this topic, assesses the particular fields in which they might be implemented, and proposes new avenues for future investigation.

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Section: Discussionmentioning

confidence: 99%

Emerging Trends in Non-Protein Amino Acids as Potential Priming Agents: Implications for Stress Management Strategies and Unveiling Their Regulatory Functions

Decsi,

Ahmed,

Rizk

et al. 2024

IJMS

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“…humile under Cd stress, which may be related to exogenous GABA regulating the carbon and nitrogen balance and biosynthesis of proteins to improve the tolerance of plants under stress conditions. 21,25 Exogenous GABA modulates the levels of nonenzymatic (ascorbic damage, and enhances plant tolerance to heavy metal stress. 24,26 For common plants, exogenous GABA can regulate the levels of nicotinamide synthase, metallothionein, and amino acids to form stable complexes with heavy metals and control the uptake of heavy metals and the expression of a series of detoxification and transporter genes, thus reducing the Cd content.…”

Section: Discussionmentioning

confidence: 99%

Exogenous γ‐aminobutyric acid (GABA) improves the cadmium phytoremediation capacity of Solanum nigrum var. humile under cadmium stress

Li,

Zhou

et al. 2024

Env Prog and Sustain Energy

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Abstractγ‐aminobutyric acid (GABA) has shown promise in enhancing crop tolerance to heavy metal stress. To improve the cadmium (Cd) phytoremediation capacity of hyperaccumulator Solanum nigrum var. humile, the effects of exogenous GABA on the growth and Cd accumulation of S. nigrum var. humile were studied. When exposed to Cd stress (0.1 mg/L) through irrigation, S. nigrum var. humile exhibited inhibited growth, characterized by decreased biomass and contents of photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid). However, the application of exogenous GABA at 1 and 2 g/L increased various organs biomass and photosynthetic pigment content of S. nigrum var. humile to certain degree under Cd stress. Compared with the Cd treatment, the concentrations of 1 and 2 g/L GABA increased the shoot biomass by 8.24% and 16.62%, respectively. GABA also increased the Cd contents, bioconcentration factors, and Cd extractions in various organs of S. nigrum var. humile. Compared with the Cd treatment, the concentrations of 1 and 2 g/L GABA increased the shoot Cd extraction by 17.66% and 24.47%, respectively. Moreover, correlation and gray relational analyses showed that the shoot biomass, chlorophyll b content, and total chlorophyll content were the top three parameters closely related to shoot Cd extraction. These findings suggest that GABA can alleviate Cd‐induced stress in S. nigrum var. humile, thus enhancing its phytoremediation capacity for Cd‐contaminated soils.

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“…Therefore, any factors that can bring out such changes may offer tolerance to the plants during salinity and other abiotic stress. Some of those factors (priming agents) are phytohormones (Mishra et al, 2020), GABA (Srivastava et al, 2021), trehalose (Mostofa et al, 2015a) NO and H 2 S (Mishra et al, 2021), and so forth.…”

Section: Amelioration Effect Of H2s On Salinity Stressmentioning

confidence: 99%

Hydrogen sulfide‐mediated mitigation and its integrated signaling crosstalk during salinity stress

Srivastava

Chowdhary

Verma

et al. 2022

Physiologia Plantarum

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Environmental stresses negatively affect plant development and significantly influence global agricultural productivity. The growth suppression due to soil salinity involves osmotic stress, which is accompanied by ion toxicity, nutritional imbalance, and oxidative stress. The amelioration of salinity stress is one of the fundamental goals to be achieved to ensure food security and better meet the issues related to global hunger. The application of exogenous chemicals is the imperative and efficient choice to alleviate stress in the agricultural field. Among them, hydrogen sulfide (H2S, a gasotransmitter) is known for its efficient role in stress mitigation, including salinity stress, along with other biological features related to growth and development in plants. H2S plays a role in improving photosynthesis and ROS homeostasis, and interacts with other signaling components in a cascade fashion. The current review gives a comprehensive view of the participation of H2S in salinity stress alleviation in plants. Further, its crosstalk with other stress ameliorating signaling component or supplement (e.g., NO, H2O2, melatonin) is also covered and discussed. Finally, we discuss the possible prospects to meet with success in agricultural fields.

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The γ-Aminobutyric Acid (GABA) Towards Abiotic Stress Tolerance

Cited by 12 publications

References 84 publications

Emerging Trends in Non-Protein Amino Acids as Potential Priming Agents: Implications for Stress Management Strategies and Unveiling Their Regulatory Functions

Emerging Trends in Non-Protein Amino Acids as Potential Priming Agents: Implications for Stress Management Strategies and Unveiling Their Regulatory Functions

Exogenous γ‐aminobutyric acid (GABA) improves the cadmium phytoremediation capacity of Solanum nigrum var. humile under cadmium stress

Hydrogen sulfide‐mediated mitigation and its integrated signaling crosstalk during salinity stress

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