Salicylic acid modulates primary and volatile metabolites to alleviate salt stress-induced photosynthesis impairment on medicinal plant Egletes viscosa

Batista, Valéria Chaves Vasconcelos; Pereira, Isabelle Mary Costa; Paula-Marinho, Stelamaris de Oliveira; Canuto, Kirley Marques; Pereira, R. de C. A.; Rodrigues, Tigressa Helena Soares; Daloso, Danilo de Menezes; Gomes-Filho, Enéas; Carvalho, Humberto Henrique de

doi:10.1016/j.envexpbot.2019.103870

Cited by 63 publications

(45 citation statements)

References 107 publications

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“…The positive effects of SA in reducing percentage of intercellular electrolyte leakage of soursop can be attributed to the improvement in nutrient absorption, membrane protection and increase in photosynthetic activity. In addition, SA can interact with signaling pathways of reactive oxygen species (ROS) and reduce oxidative stress (Herrera-Vásquez; Salinas; Holuigue, 2015; Batista et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Salicylic acid relieves the effect of saline stress on soursop morphysiology

et al. 2021

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The cultivation of soursop has increased in recent years due to the advance of agribusiness and due to its use by the pharmaceutical industry. As a source of vitamin C, calcium, carbohydrates and antioxidant substances, soursop helps to protect the human body against oxidative stress, acting in the prevention of a series of chronic degenerative disorders. In this context, the objective of present study was to evaluate the effects of foliar sprays with salicylic acid to mitigate the effects of salt stress on the morphophysiology of soursop. The study was conducted in a greenhouse, in a randomized block design and a 5 × 4 factorial arrangement, with five levels of electrical conductivity of irrigation water - ECw (0.8-control; 1.6; 2.4; 3.2 and 4.0 dS m-1) and four concentrations of salicylic acid - SA (0; 1.2; 2.4 and 3.6 mM), with three replicates. Foliar application of SA at concentrations between 1.2 and 1.6 mM mitigated the effects of salt stress on stomatal conductance, CO2 assimilation rate, transpiration and instantaneous carboxylation efficiency of soursop at 480 days after transplanting. Spraying with SA at concentrations between 1.3 and 1.6 mM induced acclimatization to salt stress in soursop plants, since the percentage of intercellular electrolyte leakage was reduced and the growth was favored by the application of SA, even when exposed to salinity. Irrigation with ECw above 0.8 dS m-1 reduced the relative water content in the leaves of soursop cv. Morada Nova.

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Section: Resultsmentioning

confidence: 99%

Salicylic acid relieves the effect of saline stress on soursop morphysiology

et al. 2021

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“…However, the available sources of water for irrigation generally have high concentrations of salts (DIAS et al, 2018). The excess of salts in the water causes reduction in the osmotic potential of the soil solution and compromises the main physiological processes of plants, such as gas exchange, water and ionic balance, including cell division, differentiation and expansion, and consequently plant growth and yield (BATISTA et al, 2019). In addition, salt stress also manifests as oxidative stress, due to the imbalance between the production of reactive oxygen species and their detoxification by enzymatic and non-enzymatic reactions, consequently leading to photooxidative damage to DNA, lipid membrane peroxidation, protein denaturation and, finally, cell death (MOHAMED et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Potassium Does Not Attenuate Salt Stress in Yellow Passion Fruit Under Irrigation Management Strategies

et al. 2020

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The objective of this study was to evaluate the gas exchange, growth and production of yellow passion fruit cv. BRS GA1, as a function of irrigation management strategies with saline water and potassium doses. The experiment was conducted under field conditions in São Domingos, PB, Brazil. A randomized block design was used in a 6 * 2 factorial scheme. The treatments consisted of six strategies of irrigation with saline waters (irrigation with low-salinity water throughout the crop cycle - SE; irrigation with high-salinity water in the vegetative stage - VE; flowering stage - FL; fruiting stage - FR; in the successive vegetative/flowering stages - VE/FL; vegetative/fruiting stages - VE/FR) and two doses of potassium (100 and 130% of the K2O recommendation), with four replicates and four plants per plot. The 100% dose corresponded to 60 g of K 2O plant-1 year-1. The effects of using high-salinity water (3.2 dS m-1) alternated with low-salinity water (1.3 dS m-1) were evaluated in different stages of the cultivation cycle. Irrigation with saline water in the fruiting stage promoted an increase in intercellular CO2 concentration and decrease in CO2 assimilation, with effects of non-stomatal origin standing out as limiting factors of photosynthetic efficiency. The highest CO 2 assimilation rate in plants subjected to water salinity of 1.3 dS m-1 throughout the cycle resulted in increments in the number of fruits and in the production per plant of the passion fruit cv. BRS GA1.

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“…The beneficial effect of salicylic acid on CO 2 assimilation rate, verified in plants subjected to concentrations of up to 1.4 mM, may be related to the capacity of salicylic acid to improve enzymatic and photosynthetic activities, while also maintaining the balance between the production and elimination of reactive oxygen species (BATISTA et al, 2019).…”

Section: Resultsmentioning

confidence: 94%

Salicylic Acid as an Attenuator of Salt Stress in Soursop

et al. 2020

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The search for alternatives that enable the use of saline waters in agriculture has become constant. In this context, the objective was to evaluate the effects of salicylic acid in mitigating salt stress effects on the growth and gas exchange of soursop cv. ‘Morada Nova’. The study was conducted in a greenhouse, in the municipality of Campina Grande - PB, Brazil. Treatments were distributed in randomized blocks, in a 5 x 4 factorial arrangement, corresponding to five levels of electrical conductivity of irrigation water - ECw (0.8; 1.6; 2.4; 3.2 and 4.0 dS m-1) and four concentrations of salicylic acid - SA (0; 1.2; 2.4 and 3.6 mM), with three replicates. Irrigation with saline water compromised the growth and gas exchange of soursop cv. ‘Morada Nova’. However, exogenous application of salicylic acid induced tolerance to salt stress in soursop plants, as their growth, transpiration, stomatal conductance, photosynthesis and instantaneous carboxylation efficiency were favored by the application of salicylic acid, even when exposed to water salinity.

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Salicylic acid modulates primary and volatile metabolites to alleviate salt stress-induced photosynthesis impairment on medicinal plant Egletes viscosa

Cited by 63 publications

References 107 publications

Salicylic acid relieves the effect of saline stress on soursop morphysiology

Salicylic acid relieves the effect of saline stress on soursop morphysiology

Potassium Does Not Attenuate Salt Stress in Yellow Passion Fruit Under Irrigation Management Strategies

Salicylic Acid as an Attenuator of Salt Stress in Soursop

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