Osmoprotection in Salvia hispanica L. seeds under water stress attenuators

Costa, Aldo Augusto Fernades da; Paiva, Emanoela Pereira de; Torres, Salvador Barros; Neta, M. L. S.; Pereira, Kleane Targino Oliveira; Leite, Moadir de Sousa; Sá, F.V.S.; Benedito, Clarisse Pereira

doi:10.1590/1519-6984.233547

Cited by 12 publications

(10 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In H. costaricensis seedlings, root length was reduced by water stress, and seedlings originated from seeds with pre-germination treatments also showed reduction (Table 3). Water stress reduces seed hydration, affecting the degradation of reserves and consequently the availability of energy and nutrients for radicle growth (PAIVA et al, 2018;COSTA et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Pre-germination treatments in pitaya (Hylocereus spp.) seeds for water stress mitigation

et al. 2023

Self Cite

View full text Add to dashboard Cite

The use of mitigating agents to minimize the deleterious effects of water stress is a promising alternative for plant species, especially during germination and initial seedling development. Thus, the objective was to evaluate the effect of different pre-germination treatments as mitigating agents of water stress during germination and initial development of pitaya seedlings of the species Hylocereus undatus and H. costaricensis. The experiment was carried out in a completely randomized design, in a 2 x 6 factorial scheme, corresponding to two pitaya species and six pre-germination treatments (T1 = 0.0 MPa (control), T2 = -0.2 MPa (water stress); T3 = hydropriming + water stress; T4 = gibberellic acid + water stress; T5 = salicylic acid + water stress and T6 = thiamethoxan + water stress) with four replicates of 50 seeds. The variables analyzed were germination, germination speed index, shoot and primary root lengths, total dry mass, total soluble sugars and total free amino acids. The water potential of -0.2 MPa is limiting for germination and initial growth of H. costaricensis and H. undatus, with H. undatus being more tolerant to water stress in the germination phase. Pre-germination treatments with hydropriming, gibberellic acid, salicylic acid and thiamethoxan improve the physiological performance of H. costaricensis seeds, with gibberellic acid being the best attenuator of water stress. Gibberellic acid improves the physiological performance of H. undatus seeds under water deficit conditions.

show abstract

Section: Resultsmentioning

confidence: 99%

Pre-germination treatments in pitaya (Hylocereus spp.) seeds for water stress mitigation

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…Previous studies have shown that salicylic acid can reduce lipid peroxidation and interact with other plant hormones, increasing the tolerance of plants to salt stress [ 50 , 51 ]. In addition, the beneficial effects of salicylic acid observed in gas exchanges may be related to the accumulation of osmoprotectants, improving the turgor of plant cells under stress and the activation of antioxidant enzymes, resulting in better photosynthetic activity [ 52 ].…”

Section: Discussionmentioning

confidence: 99%

Foliar Applications of Salicylic Acid on Boosting Salt Stress Tolerance in Sour Passion Fruit in Two Cropping Cycles

Sobrinho

Silva

Lima

et al. 2023

Plants

View full text Add to dashboard Cite

Brazil stands out as the largest producer of sour passion fruit; however, the water available for irrigation is mostly saline, which can limit its cultivation. This study was carried out with the objective of evaluating the effects of salicylic acid in the induction of tolerance in sour passion fruit to salt stress. The assay was conducted in a protected environment, using a completely randomized design in a split-plot scheme, with the levels of electrical conductivity of the irrigation water (0.8, 1.6, 2.4, 3.2, and 4.0 dS m−1) considering the plots and concentrations of salicylic acid (0, 1.2, 2.4, and 3.6 mM) the subplots, with three replications. The physiological indices, production components, and postharvest quality of sour passion fruit were negatively affected by the increase in the electrical conductivity of irrigation water, and the effects of salt stress were intensified in the second cycle. In the first cycle, the foliar application of salicylic acid at concentrations between 1.0 and 1.4 mM partially reduced the harmful effects of salt stress on the relative water content of leaves, electrolyte leakage, gas exchange, and synthesis of photosynthetic pigments, in addition to promoting an increase in the yield and quality parameters of sour passion fruit.

show abstract

“…SA has a high biostimulatory capacity for salinity tolerance, by stimulating positive regulation of the ascorbateglutathione pathway (AsA-GSH), increasing tolerance under ion toxicity and oxidative stress, preventing the sudden drop in plant growth (Asensi-Fabado and Munné-Bosch, 2011;Hasanuzzaman et al, 2019;Kaya et al, 2020). In addition, SA increases the accumulation of osmoprotectors, improving turgence in plant cells under stress and antioxidant enzyme activation (Dutra et al, 2017;Costa et al, 2022). Several studies have shown the attenuating effect of salt stress with the application of SA in fruit vegetables, such as bell peppers (Amirinejad et al, 2017;Kaya et al, 2020), pumpkin (Rafique et al, 2011) and tomatoes (Mimouni et al, 2016).…”

Section: Methodsmentioning

confidence: 99%

Exogenous application of salicylic acid induces salinity tolerance in eggplant seedlings

et al. 2024

View full text Add to dashboard Cite

Under salt stress conditions, plant growth is reduced due to osmotic, nutritional and oxidative imbalance. However, salicylic acid acts in the mitigation of this abiotic stress by promoting an increase in growth, photosynthesis, nitrogen metabolism, synthesis of osmoregulators and antioxidant enzymes. In this context, the objective was to evaluate the effect of salicylic acid doses on the growth and physiological changes of eggplant seedlings under salt stress. The experiment was conducted in a greenhouse, where the treatments were distributed in randomized blocks using a central composite matrix Box with five levels of electrical conductivity of irrigation water (CEw) (0.50; 1.08; 2.50; 3.92 and 4.50 dS m-1), associated with five doses of salicylic acid (SA) (0.00; 0.22; 0.75; 1.28 and 1.50 mM), with four repetitions and each plot composed of three plants. At 40 days after sowing, plant height, stem diameter, number of leaves, leaf area, electrolyte leakage, relative water content, and total dry mass were determined. ECw and SA application influenced the growth and physiological changes of eggplant seedlings. Increasing the ECw reduced growth in the absence of SA. Membrane damage with the use of SA remained stable up to 3.9 dS m-1 of ECw. The relative water content independent of the CEw increased with 1.0 mM of SA. The use of SA at the concentration of 1.0 mM mitigated the deleterious effect of salinity on seedling growth up to 2.50 dS m-1 of ECw.

show abstract

Osmoprotection in Salvia hispanica L. seeds under water stress attenuators

Cited by 12 publications

References 29 publications

Pre-germination treatments in pitaya (Hylocereus spp.) seeds for water stress mitigation

Pre-germination treatments in pitaya (Hylocereus spp.) seeds for water stress mitigation

Foliar Applications of Salicylic Acid on Boosting Salt Stress Tolerance in Sour Passion Fruit in Two Cropping Cycles

Exogenous application of salicylic acid induces salinity tolerance in eggplant seedlings

Contact Info

Product

Resources

About