Insights into salicylic acid-mediated redox homeostasis, carbohydrate metabolism and secondary metabolite involvement in improvement of photosynthetic performance, enzyme activities, ionomics, and yield in different varieties of Abelmoschus esculentus

Arif, Yamshi; Singh, Priyanka; Mir, Anayat Rasool; Alam, Pravej; Hayat, Shamsul

doi:10.1016/j.plaphy.2023.108047

Cited by 1 publication

(3 citation statements)

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“…This explains the diverse responses observed in the evaluated cultivars. It is remarkable that SA can act as a non-enzymatic antioxidant, helping to remove ROS and regulate their levels in cellular metabolism ( Arif et al., 2023 ). This could explain the decrease in APX enzyme activity in BRS Novaera and BRS Pajeú cultivars during the R2 stage, even under water restriction ( Figure 7B ).…”

Section: Discussionmentioning

confidence: 99%

“…Osmotic adjustment is characterized by the accumulation of compatible organic solutes in the cell cytosol, which facilitates water absorption from the soil ( Santos et al., 2022 ). Furthermore, the antioxidant enzyme system functions to eliminate ROS and regulate their levels in metabolism ( Arif et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

“…It promotes an increase in relative water content ( Carvalho et al., 2020 ), the concentration of organic solutes, and the activity of antioxidant enzymes ( Shemi et al., 2021 ; Jales Filho et al., 2023 ). Silicon also regulates mechanisms that counteract oxidative stress ( Arif et al., 2023 ) and increases the productivity of plants grown under water deficit ( El-Sanatawy and Zedan, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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Salicylic acid improves cowpea productivity under water restriction in the field by modulating metabolism

Cavalcante,

de Melo,

Ferraz

et al. 2024

Front. Plant Sci.

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IntroductionSalicylic acid has shown promise in alleviating water stress in cultivated plants. However, there is a lack of studies confirming its effectiveness in cowpea plants grown in field conditions. Therefore, this research aimed to evaluate the use of salicylic acid as a water stress mitigator in cowpea cultivars under different irrigation depths in field conditions.MethodsFour cowpea cultivars (BRS Novaera, BRS Tapaihum, BRS Pujante, and BRS Pajeú) were subjected to different treatments: control (W100: 100% replacement of crop evapotranspiration – ETc), W50 (50% of ETc), W50+SA2 (50% of ETc + 276 mg L-1 of SA), and W50+SA4 (50% of ETc + 552 mg L-1 of SA). The treatments were combined in a 4×4 factorial scheme with three replications, arranged in a randomized block design.ResultsWater restriction had a negative impact on the water status, growth, gas exchange, and production of the cultivars while also leading to changes in the antioxidant metabolism and osmolyte concentration. The application of SA enhanced antioxidant activity and the synthesis of osmotic adjusters under stress conditions. The most effective concentration was 276 mg L-1 in stage R2 and 552 mg L-1 in stage V7, respectively. The BRS Pujante cultivar showed increased productivity under water restriction with SA application, while the BRS Tapaihum was the most tolerant among the cultivars studied.DiscussionIn summary, our findings underscore the importance of using SA to mitigate the effects of water restriction on cowpea cultivation. These discoveries are crucial for the sustainability of cowpea production in regions susceptible to drought, which can contribute to food security. We further add that the adoption of new agricultural practices can enhance the resilience and productivity of cowpea as an essential and sustainable food source for vulnerable populations in various parts of the world.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%