Effects of Gamma-Aminobutyric Acid on Seed Germination, Ion Balance, and Metabolic Activity in Perennial Ryegrass Under Salinity Stress

Tang, Jia Ying; Li, Manli; Mao, Peisheng; Jiang, Yiwei

doi:10.1007/s00344-021-10426-y

Cited by 9 publications

(10 citation statements)

References 40 publications

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“…Under salt stress, seeds primed with BABA enhanced germination characteristics, including MGT, GI, seeds vigor index and coefficient velocity of germination (Figure 2). Increased in seeds germination socked with gamma aminobutyric acid (GABA) was also reported in perennial ryegrass (Tang et al, 2021). The non-protein GABA is also a kind of aminobutyric acid (ABA) used for abiotic stress tolerance.…”

Section: Discussionmentioning

confidence: 92%

“…Our evidence was in line with previous study of Mostek et al (2016), who reported that seeds of barley lines primed with BABA significantly increased relative water content, indicating that BABA maintains holding water in the plants. The mechanisms of ABA of promoting seed germination might be attributed to the altering carbohydrate and antioxidant enzyme activities (Tang et al, 2021). After water absorption, hormones stimulate hydrolytic enzymes, which are essential for the breakdown of storage macromolecules such as carbohydrates and proteins, resulting in their conversion into forms that are available to the developing embryo (Nimir et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

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Seeds priming with ß-aminobutyric acid alleviated salinity stress of chickpea at germination and early seedling growth

Elradi

Suliman

Zhou

et al. 2022

Chil. j. agric. res.

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Salinity stress is one of the most prevalent environmental factors that severely affect seed germination, early growth stages, and crop production. The present study was carried out to evaluate the protective role of β-aminobutyric acid (BABA) in alleviating salt stress in chickpea (Cicer arietinum L.) varieties (Jabel Marra, Porgeg and Shendi) under four concentrations of NaCl solutions (0, 50, 100, and 150 mM NaCl). Three levels of β-aminobutyric acid (0, 0.25, and 0.50 mM) were applied. Germination and seedling attributes were measured. A high level of salinity (150 mM NaCl) increased mean germination time by 10.0% and decreased the coefficient velocity of germination and root dry weight by 12.1% and 96.2%, respectively, compared with the control. 'Jabel Marra' significantly surpassed other studied varieties in germination characters, while at seedling growth, 'Shendi' outperformed other varieties in root and shoot length, fresh, and dry weights. Seeds treated with 0.25 mM BABA caused increment on water uptake by 18.1% compared with 0.0 mM BABA. At 150 mM NaCl, seeds primed with 0.50 mM BABA increased the germination percentage of 'Jabel Marra' and 'Porgeg' by 6.3% and 11.9% as compared with 0.0 mM BABA. Under 50 mM NaCl and 0.50 mM BABA, root length, shoot length, shoot fresh weight, and root dry weight were increased by 170.6%, 44.8%, 80%, and 49.3%, respectively, relative to 0.0 mM BABA. The present study results suggested that seed priming by BABA could be useful to alleviate the salinity stress of chickpea at germination and early seedling growth.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Seeds priming with ß-aminobutyric acid alleviated salinity stress of chickpea at germination and early seedling growth

Elradi

Suliman

Zhou

et al. 2022

Chil. j. agric. res.

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“…Subsequently, the supernatant, obtained via centrifugation at 8000× g for 10 min at 4 • C, was used for the subsequent analysis of antioxidant enzyme activity. Superoxide dismutase (SOD) activity was determined using the nitroblue tetrazolium (NBT) photoreduction method [23]. Additionally, peroxidase (POD) activity was determined using the guaiacol method [24].…”

Section: Root/shoot Ratiomentioning

confidence: 99%

“…Additionally, peroxidase (POD) activity was determined using the guaiacol method [24]. Catalase (CAT) activity was measured using the ultraviolet absorption method [23]. To determine the activity of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), we utilized specific assay kits, namely SOD-1-W, POD-1-Y, and CAT-1-Y, respectively.…”

Section: Root/shoot Ratiomentioning

confidence: 99%

The Impact of Shale Oil Residue on the Growth and Physiological Characteristics of Corn Seedlings under Saline Soil Conditions

Huang,

Dong,

Meng

et al. 2023

Agronomy

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Soil salinization is a primary environmental factor leading to reduced crop yields, and oil shale waste residues may have the potential to alleviate plant salt stress. This study aims to investigate the effects of three types of oil shale waste residues (fine concentrate ore, fine ore, and semi-coke) on the growth and physiological characteristics of maize seedlings in saline–alkali soil. The results indicate the following: (1) All three types of oil shale waste residues increased the root vitality of seedlings and reduced the root proline content. (2) The three types of oil shale waste residues increased the activity of superoxide dismutase (1.70% to 97.19%) and peroxidase (29.39% to 61.21%) in maize seedlings, but there were differences in their effects on catalase activity. The fine ore and semi-coke treatments increased catalase activity (4.98% to 77.42%), while fine concentrate ore decreased catalase activity (39.28% to 5.30%). (3) The three types of oil shale waste residues effectively alleviated the degree of membrane lipid peroxidation in maize seedling leaves. (4) Principal component analysis showed that the semi-coke treatment was beneficial to the growth and physiology of maize seedlings in saline–alkali soil, with the optimal effect occurring at a 0.2% addition rate. In conclusion, adding semi-coke to saline–alkali soil promotes the growth of maize by regulating its physiological and biochemical mechanisms, alleviating the salt stress on maize seedlings caused by salt content.

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“…Other studies showed that application of GABA enhanced the seed germination percentage in white clover (Trifolium repens L.) [13], lettuce (Lactuca sativa L.) [14], and rice (Oryza sativa L.) [15] exposed to various levels of salinity stress. In NaCl-treated perennial ryegrass (Lolium perenne L.), exogenous application of 1 mmol/L GABA substantially improved germination, and GABA increased salinity tolerance by improving seedling growth and altering carbohydrate and antioxidant metabolism [16].…”

Section: Introductionmentioning

confidence: 99%

Exogenous Application of GABA Alleviates Alkali Damage in Alfalfa by Increasing the Activities of Antioxidant Enzymes

Zhang

et al. 2022

Agronomy

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Alfalfa (Medicago sativa L.) is a widely grown and important forage crop. However, alkali stress is detrimental to alfalfa yield and nutritional quality. Gamma-aminobutyric acid (GABA) is a signaling molecule, it participates in and responds to metabolic regulation related to plant growth and development and stress. In this study, we clarify the effect of spraying alfalfa seedlings with GABA on the alkali tolerance of the seedlings. We determined that exogenous application of GABA at 75 mmol/L improved the resistance of alfalfa seedlings to alkali stress caused by exposure to 100 mmol/L NaHCO3, pH 8.5. Exogenous GABA significantly increased the chlorophyll content, the accumulation of soluble sugars in the plants, significantly decreased their relative electrical conductivity, malondialdehyde (MDA), superoxide anion (O2−) and hydrogen peroxide (H2O2) contents, and significantly increased the activities of the antioxidant enzymes catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD). Exogenous GABA increased the activities of GAD and GABA-T, increased the content of glutamate and endogenous GABA, and regulated the expression of the genes MsGAD, MsGABA-T and MsGDH. In alfalfa plants that survived for a long time, compared to the control group, root length and fresh weight were significantly higher. Exogenous GABA had a positive effect on the resistance of alfalfa seedlings to alkali stress, and the effect was closely associated with GAD and GABA-T activity, glutamate content and the levels of endogenous GABA and antioxidants. This work provides a new method for the cultivation of early-stage alfalfa seedlings under low or moderate alkali stress conditions through the application of 75 mmol/L GABA.

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Effects of Gamma-Aminobutyric Acid on Seed Germination, Ion Balance, and Metabolic Activity in Perennial Ryegrass Under Salinity Stress

Cited by 9 publications

References 40 publications

Seeds priming with ß-aminobutyric acid alleviated salinity stress of chickpea at germination and early seedling growth

Seeds priming with ß-aminobutyric acid alleviated salinity stress of chickpea at germination and early seedling growth

The Impact of Shale Oil Residue on the Growth and Physiological Characteristics of Corn Seedlings under Saline Soil Conditions

Exogenous Application of GABA Alleviates Alkali Damage in Alfalfa by Increasing the Activities of Antioxidant Enzymes

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