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Exogenous application of salicylic acid induces salinity tolerance in eggplant seedlings

Sousa, V F O ; Santos, A S ; Sales, W S ; Silva, A J ; Gomes, F A L ; Dias, T J ; Gonçalves-Neto, A C ; Faraz, A ; Santos, J P O ; Santos, G L ; Cruz, J M F L ; Silva, L D R ; Araújo, J R E S

Brazilian journal of biology, 2024, Vol.84, p.e257739-8 [Periódico revisado por pares]

Brazil: Instituto Internacional de Ecologia

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Título:
Exogenous application of salicylic acid induces salinity tolerance in eggplant seedlings
Autor: Sousa, V F O ; Santos, A S ; Sales, W S ; Silva, A J ; Gomes, F A L ; Dias, T J ; Gonçalves-Neto, A C ; Faraz, A ; Santos, J P O ; Santos, G L ; Cruz, J M F L ; Silva, L D R ; Araújo, J R E S
Assuntos: Abiotic stress ; Acids ; Agricultural production ; Antioxidants ; Antioxidants - metabolism ; BIOLOGY ; Composting ; Conductivity ; Electrical conductivity ; Electrical resistivity ; Electrolyte leakage ; Enzymes ; Irrigation ; Irrigation water ; Leaf area ; Leaves ; Moisture content ; Nitrogen metabolism ; Oxidative stress ; Photosynthesis ; Physiological effects ; Physiology ; phytohormone ; Plant growth ; Plant Leaves - metabolism ; Plants ; Plants (botany) ; Salicylic acid ; Salicylic Acid - pharmacology ; Saline water ; Salinity ; Salinity effects ; salinity the water ; Salinity tolerance ; Salt ; Salt Tolerance ; Seedlings ; Seeds ; Solanum melongena ; Solanum melongena - metabolism ; Solanum melongena L ; Stress ; stress signal ; Stress, Physiological ; Water content
É parte de: Brazilian journal of biology, 2024, Vol.84, p.e257739-8
Descrição: 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.
Editor: Brazil: Instituto Internacional de Ecologia
Idioma: Inglês;Português

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Exogenous application of salicylic acid induces salinity tolerance in eggplant seedlings

Sousa, V F O ; Santos, A S ; Sales, W S ; Silva, A J ; Gomes, F A L ; Dias, T J ; Gonçalves-Neto, A C ; Faraz, A ; Santos, J P O ; Santos, G L ; Cruz, J M F L ; Silva, L D R ; Araújo, J R E S

Brazil: Instituto Internacional de Ecologia

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