Effect of exogenous application of glycine betaine on tomato plants subjected to salt stress

Sajyan, T.K.; Allaw, W.; Shaban, N.; Sassine, Y.N.

doi:10.17660/actahortic.2019.1253.6

Cited by 7 publications

(3 citation statements)

References 19 publications

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“…'Patio' through changing the expression abundance of some proteins. Sajyan et al (2019) irrigated the tomato 'Sila' plants with saline water (with EC between 2 and 10 dS m -1 ) and exogenous GB in various doses (4.5, 6 and 7.5 g/L) and observed a positive effects on leaf number, stem diameter, number of flowers, number of fruits, no evident effects on the number of clusters, fruit set, the weight of individual fruit, yield and fruit diameter were observed and a reduction in the fruit ripening process at 7.5 g/L GB. Plant growth-promoting rhizosphere bacteria (PGPB) can alleviate the effects induced by salt stress by production of phytohormone (e.g.…”

Section: Recommendations For Alleviating the Effects Of Salinity On T...mentioning

confidence: 99%

Tomato responses to salinity stress: From morphological traits to genetic changes

2023

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Tomato is an essential annual crop providing human food worldwide. It is estimated that by the year 2050 more than 50% of the arable land will become saline and, in this respect, in recent years, researchers have focused their attention on studying how tomato plants behave under various saline conditions. Plenty of research papers are available regarding the effects of salinity on tomato plant growth and development, that provide information on the behavior of different cultivars under various salt concentrations, or experimental protocols analyzing various parameters. This review gives a synthetic insight of the recent scientific advances relevant into the effects of salinity on the morphological, physiological, biochemical, yield, fruit quality parameters, and on gene expression of tomato plants. Notably, the works that assessed the salinity effects on tomatoes were firstly identified in Scopus, PubMed, and Web of Science databases, followed by their sifter according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline and with an emphasis on their results. The assessment of the selected studies pointed out that salinity is one of the factors significantly affecting tomato growth in all stages of plant development. Therefore, more research to find solutions to increase the tolerance of tomato plants to salinity stress is needed. Furthermore, the findings reported in this review are helpful to select, and apply appropriate cropping practices to sustain tomato market demand in a scenario of increasing salinity in arable lands due to soil water deficit, use of low-quality water in farming and intensive agronomic practices.

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Section: Recommendations For Alleviating the Effects Of Salinity On T...mentioning

confidence: 99%

Tomato responses to salinity stress: From morphological traits to genetic changes

2023

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“…However, responses to GB were genotype specific [102]. However, the effects of GB may be species specific-for example, no improvements were observed in growth or yield when applied to tomatoes [103], which may also be related to the dose used, the time of application, and the time of tissue collection.…”

Section: Glycine Betaine (Gb)mentioning

confidence: 99%

Abiotic Stress in Crop Species: Improving Tolerance by Applying Plant Metabolites

Godoy

Olivos-Hernández

Stange

et al. 2021

Plants

151

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Reductions in crop yields brought about by abiotic stress are expected to increase as climate change, and other factors, generate harsher environmental conditions in regions traditionally used for cultivation. Although breeding and genetically modified and edited organisms have generated many varieties with greater abiotic stress tolerance, their practical use depends on lengthy processes, such as biological cycles and legal aspects. On the other hand, a non-genetic approach to improve crop yield in stress conditions involves the exogenous application of natural compounds, including plant metabolites. In this review, we examine the recent literature related to the application of different natural primary (proline, l-tryptophan, glutathione, and citric acid) and secondary (polyols, ascorbic acid, lipoic acid, glycine betaine, α-tocopherol, and melatonin) plant metabolites in improving tolerance to abiotic stress. We focus on drought, saline, heavy metal, and temperature as environmental parameters that are forecast to become more extreme or frequent as the climate continues to alter. The benefits of such applications are often evaluated by measuring their effects on metabolic, biochemical, and morphological parameters in a variety of crop plants, which usually result in improved yields when applied in greenhouse conditions or in the field. As this strategy has proven to be an effective way to raise plant tolerance to abiotic stress, we also discuss the prospect of its widespread implementation in the short term.

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“…The literature demonstrated that exogenous GB can enhance the activity of enzymatic and non-enzymatic systems, reduce ROS (reactive oxygen species) accumulation, and increase the content of osmoregulatory substances to enhance the salt tolerance of plants. Exogenous GB can significantly enhance salt tolerance and significantly increase fruit or seed yield of cotton (Gossypium hirsutum L.) [5], maize (Zea mays) [6], rice (Oryza sativa) [7], and tomato (Lycopersicon esculentum) [8][9].…”

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confidence: 99%

Exogenous Betaine Enhances Salt Tolerance of Glycyrrhiza uralensis through Multiple Pathways

Dong,

Ma,

Zhao

et al. 2023

Preprint

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Background Glycyrrhiza uralensis Fisch. is a medicinal plant with high economic value. Despite the relatively strong salt tolerance of perennial individuals, its salt tolerance at the seedling growth stage is low. Improving its salt stress resistance at the seedling stage is the key to the cultivation of the plant using salinized land. In this study, we investigated the enhancement effect of exogenous glycine betaine (GB) on the growth of G. uralensis seedlings under NaCl stress conditions and analysed its physiological mechanism. Results The root growth of G. uralensis seedlings was severely inhibited under NaCl stress conditions, and the addition of GB could effectively alleviate the adverse effects of the salt stress; the application of 20 mM GB had the most significant alleviating effect. Compared with the NaCl-only treatment group, the application of 20 mM GB under NaCl stress conditions significantly increased total root length, total root surface area, and total root volume by 80.38%, 93.28%, and 175.61%, respectively, and obviously increased the GB content in its roots, stems, and leaves by 36.88%, 107.05%, and 21.63%, respectively, and their activity of betaine aldehyde dehydrogenase 2 (BADH2) was increased by 74.10%, 249.38%, and 150.60%, respectively. The GB-addition treatment significantly increased content of osmoregulatory substances (soluble proteins, sluble sugars and proline) in the roots and leave, markedly enhanced the activity of antioxidant enzymes and the content of antioxidant, and dramatically promoted salt secretion capacity of the leaves, which especially promoted the secretion of Na+. Conclusions In summary, the exogenous addition of GB is an effective way to significantly improve the salt tolerance of G. uralensis seedlings, and promotion of the synthesis of osmoregulatory substances, enhancement of antioxidant enzyme activities, reduction of membrane lipid peroxidation products, and discharge of excess salts in the body (especially the significant promotion of the secretion of Na+) are the critical reasons why exogenous addition of GB was able to effectively alleviate the NaCl damage of G. uralensis seedlings.

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Effect of exogenous application of glycine betaine on tomato plants subjected to salt stress

Cited by 7 publications

References 19 publications

Tomato responses to salinity stress: From morphological traits to genetic changes

Tomato responses to salinity stress: From morphological traits to genetic changes

Abiotic Stress in Crop Species: Improving Tolerance by Applying Plant Metabolites

Exogenous Betaine Enhances Salt Tolerance of Glycyrrhiza uralensis through Multiple Pathways

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