Salicylic Acid and Calcium Signaling Induce Physiological and Phytochemical Changes to Improve Salinity Tolerance in Red Amaranth (Amaranthus tricolor L.)

Hoang, Hai Ly; Guzman, Constancio C. de; Cadiz, Nina M.; Hoang, Thi Thai Hoa; Tran, Dang Hoa; Rehman, Hafeez ur

doi:10.1007/s42729-020-00248-4

Cited by 28 publications

(22 citation statements)

References 56 publications

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“…2). Increased plant development promoted by SA addition was also observed in Amaranthus tricolor L. plants exposed to salinity (Hoang et al 2020). Advantages provided to plants by seed priming with SA, with emphasis on initial development processes, are attributed to a series of physiological changes caused by this compound.…”

Section: Discussionmentioning

confidence: 82%

Seed Priming with Salicylic Acid Minimizes Oxidative Effects of Aluminum on Trifolium Seedlings

Bortolin

Teixeira

Pinheiro

et al. 2020

J Soil Sci Plant Nutr

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Aluminum (Al) toxicity is one of the main aspects restricting the development of fabaceous plants grown in soils with spontaneous vegetation prevalence in temperate climate zones. Salicylic acid (SA) minimizes the effects of stress on plants. Therefore, the aim of the current study was to evaluate the ability of SA seed priming to mitigate the effects of Al on seed germination and seedling performance in two Trifolium species. Trifolium vesiculosum (annual) and Trifolium repens (perennial) seeds were primed in solution added, or not, with SA (25 μM) and placed on germination paper moistened with aluminum sulfate (Al 2 (SO 4) 3) solutions at three different doses: 0 mM (control), 0.25 mM (moderate dose), and 1.25 mM (high dose). Seed priming with SA has mitigated the global toxicity effects of Al on T. vesiculosum and T. repens seedlings. Inferior damages were observed in T. vesiculosum root length and dry mass and in T. repens shoot dry mass, after SA pretreatment. T. vesiculosum seed priming with SA in the presence of Al has significantly reduced the osmotic potential of seedling sap. Salicylic acid (SA) has also enabled increased antioxidant activity of enzymes such as superoxide dismutase (SOD) in the two investigated plant species and ascorbate peroxidase (APX) in T. repens. In addition to the increased antioxidant activity, SA-primed seeds reduced the malondialdehyde content in T. vesiculosum seedlings exposed to Al. Overall, seed priming with SA mitigates oxidative effects of Al and improves T. vesiculosum and T. repens seedling performance in the presence of this element.

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Section: Discussionmentioning

confidence: 82%

Seed Priming with Salicylic Acid Minimizes Oxidative Effects of Aluminum on Trifolium Seedlings

Bortolin

Teixeira

Pinheiro

et al. 2020

J Soil Sci Plant Nutr

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“…SA also modulates Na transport activities. Therefore, the reduction in Na concentration with SA application (Table 2) could be due, beside K enhancement, to Ca-mediated increase in the activity of H + -ATPase, which provides the energy to remove the excessive Na from cells (Hoang et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Improved salinity tolerance in early growth stage of maize through salicylic acid foliar application

et al. 2021

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Soil salinity threatens agricultural production worldwide by constraining plant growth and final crop yield. The early stages are most sensitive to salinity, in response to which salicylic acid (SA) has demonstrated beneficial effects in various plant species. Based on this, a maize (Zea mays L.) pot experiment was set up combining three levels of soil salinity (0, 6 and 12 dS m–1), obtained through NaCl addition, with three levels of SA (0, 300 and 600 mM), applied by leaf spraying 20 days after seedling emergence. Fifteen days later, the following traits were assessed: morphology (plant height, leaf number), growth (root and shoot dry weight), leaf water status [relative water content (RWC), electrolyte leakage (EL)], pigments (chlorophyll a and b, carotenoids, anthocyanin), antioxidant enzymes (peroxidase, catalase, ascorbate peroxidase, vitamin C), oxidative stress markers (H2O2, malondialdehyde), osmo-regulating compounds (free amino acids, soluble proteins and sugars, proline), hormones [indole-3-acetic acid, gibberellic acid (GA), abscisic acid (ABA), ethylene], element (Na, K, Ca, Mg and Cl) concentration and content in roots, stem and leaves. Salinity severely affected maize growth (–26% total dry weight), impaired leaf water status (–31% RWC), reduced photosynthetic pigments, enhanced all antioxidant enzymes and oxidative stress markers, two osmo-regulating compounds (soluble sugars and proline) out of four, and all hormones except GA. SA was shown effective in containing most of the stress effects, while supporting plant defences by upgrading antioxidant activities (reduced oxidative stress markers), increasing cell membrane stability (–24% EL) and leaf water status (+20% RWC), and reducing plant stress signalling (–10% ABA and -20% ethylene). Above all, SA contrasted the massive entry of noxious ions (Na+ and Cl–), in favour of K+, Ca2+ and Mg2+ accumulation. Lastly, salicylic acid was shown beneficial for maize growth and physiology also under non-saline condition, suggesting a potential use in normal field conditions. Highlights - Foliar applied salicylic acid alleviated salinity effects on maize growth at early plant stage. - Salicylic acid improved leaf water status, chlorophyll content, and strengthened anti-oxidant enzymes under salinity. - Salicylic acid reduced oxidative stress markers while enhancing osmo-regulating and hormonal responses to salinity. - Salicylic acid hampered Na and Cl entry and translocation to above ground organs, preserving leaf cell membrane integrity. - Salicylic acid was shown beneficial for maize growth and physiology also under non-saline conditions.

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“…In other plant species, the gained information and outcomes remain limited as only a handful studies have been conducted in relation to salinity stress in Vietnam. Among of these studies, it has been demonstrated that exogenous application of salicylic acid and/or calcium can enhance the salinity tolerance of amaranth (Amaranthus tricolor) via promotion of Na + exclusion from roots, accumulation of phenolic and flavonoid compounds as well as increased antioxidant activities (Hoang et al, 2020). Tolerance of various chili pepper genotypes against different concentrations of NaCl or CaCl2 (ranging from 0-300 mM) has been also explored, which was based on germination rate, plant height, number of leaves, branches and flowers, leaf area, phenolic compound contents and antioxidant activities (Ai et al, 2021).…”

Section: Salinity Stress Tolerance Studies In Vietnammentioning

confidence: 99%

Important analyzing parameters in the assessment of salt tolerance in plants

Xuan

Thảo

2021

Vietnam J. Biotechnol.

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Maximal crop performance potential and land area suitable for cultivation are usually restricted by adverse environmental conditions. Among the abiotic factors, salinity stress is considered as one of the main threats, which causes ionic toxicity, dehydration and oxidative stresses on the plants. Alarmingly, the impact of salinity is predicted to be more severe in the forthcoming years due to global warming. Therefore, development of new cultivars with better salinity resistance with mimimized yield penalty under the adverse condition, either by breeding or genetic engineering approach, has attracted a great attention from the scientists. In this review, important parameters used in evaluation of plant resistance ability against salinity stress are discussed, which highlights the necessity to obtain multi-sets of biological data ranging from analyses of morphological alterations to physiological, biochemical and molecular responses, as well as by performing -omics studies to find out network of salinity-responsive pathways. Literature review also demonstrates that the relevance of salinity condition setup in terms of concentration and duration is required in experimental design. Furthermore, recent investigations on genome duplication, activities of non-coding sequence or epigenetics also reveal their regulatory roles in shaping plant response and tolerance degree toward salinity stress. Collection of such data not only contributes to widen scientific understanding of plant response mechanisms and adaptation to this stress factor but also facilitates the identification of important genes associating with plant tolerance to salinity. Therefore, the presented information could be used as a reference for the salinity stress-related studies serving for crop innovation and transgene function characterization.

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Salicylic Acid and Calcium Signaling Induce Physiological and Phytochemical Changes to Improve Salinity Tolerance in Red Amaranth (Amaranthus tricolor L.)

Cited by 28 publications

References 56 publications

Seed Priming with Salicylic Acid Minimizes Oxidative Effects of Aluminum on Trifolium Seedlings

Seed Priming with Salicylic Acid Minimizes Oxidative Effects of Aluminum on Trifolium Seedlings

Improved salinity tolerance in early growth stage of maize through salicylic acid foliar application

Important analyzing parameters in the assessment of salt tolerance in plants

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