Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic Performance

Salinity stress is one of the most damaging abiotic stresses to plants, causing disturbances in physiological, biochemical, and metabolic processes. The exogenous application of natural metabolites is a useful strategy to reduce the adverse effects of stress on crops. We investigated the effect of f...

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Main Authors: Ida Linić, Selma Mlinarić, Lidija Brkljačić, Iva Pavlović, Ana Smolko, Branka Salopek-Sondi
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/10/11/2346
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author Ida Linić
Selma Mlinarić
Lidija Brkljačić
Iva Pavlović
Ana Smolko
Branka Salopek-Sondi
author_facet Ida Linić
Selma Mlinarić
Lidija Brkljačić
Iva Pavlović
Ana Smolko
Branka Salopek-Sondi
author_sort Ida Linić
collection DOAJ
description Salinity stress is one of the most damaging abiotic stresses to plants, causing disturbances in physiological, biochemical, and metabolic processes. The exogenous application of natural metabolites is a useful strategy to reduce the adverse effects of stress on crops. We investigated the effect of foliar application of salicylic acid (SA) and ferulic acid (FA) (10–100 μM) on short-term salt-stressed (150 mM NaCl, 72 h) Chinese cabbage plants. Subsequently, proline level, photosynthetic performance, phenolic metabolites with special focus on selected phenolic acids (sinapic acid (SiA), FA, SA), flavonoids (quercetin (QUE), kaempferol (KAE)), and antioxidant activity were investigated in salt-stressed and phenolic acid-treated plants compared with the corresponding controls. Salt stress caused a significant increase in SA and proline contents, a decrease in phenolic compounds, antioxidant activity, and photosynthetic performance, especially due to the impairment of PSI function. SA and FA treatments, with a concentration of 10 μM, had attenuated effects on salt-stressed plants, causing a decrease in proline and SA level, and indicating that the plants suffered less metabolic disturbance. Polyphenolic compounds, especially FA, SiA, KAE, and QUE, were increased in FA and SA treatments in salt-stressed plants. Consequently, antioxidant activities were increased, and photosynthetic performances were improved. FA resulted in a better ameliorative effect on salt stress compared to SA.
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spelling doaj.art-78d746d03f5e4c4b92b199ff1da7f5342023-11-23T01:04:08ZengMDPI AGPlants2223-77472021-10-011011234610.3390/plants10112346Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic PerformanceIda Linić0Selma Mlinarić1Lidija Brkljačić2Iva Pavlović3Ana Smolko4Branka Salopek-Sondi5Department for Molecular Biology, Ruđer Bošković Institute, 10 000 Zagreb, CroatiaDepartment of Biology, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, CroatiaDepartment for Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10 000 Zagreb, CroatiaDepartment for Molecular Biology, Ruđer Bošković Institute, 10 000 Zagreb, CroatiaDepartment for Molecular Biology, Ruđer Bošković Institute, 10 000 Zagreb, CroatiaDepartment for Molecular Biology, Ruđer Bošković Institute, 10 000 Zagreb, CroatiaSalinity stress is one of the most damaging abiotic stresses to plants, causing disturbances in physiological, biochemical, and metabolic processes. The exogenous application of natural metabolites is a useful strategy to reduce the adverse effects of stress on crops. We investigated the effect of foliar application of salicylic acid (SA) and ferulic acid (FA) (10–100 μM) on short-term salt-stressed (150 mM NaCl, 72 h) Chinese cabbage plants. Subsequently, proline level, photosynthetic performance, phenolic metabolites with special focus on selected phenolic acids (sinapic acid (SiA), FA, SA), flavonoids (quercetin (QUE), kaempferol (KAE)), and antioxidant activity were investigated in salt-stressed and phenolic acid-treated plants compared with the corresponding controls. Salt stress caused a significant increase in SA and proline contents, a decrease in phenolic compounds, antioxidant activity, and photosynthetic performance, especially due to the impairment of PSI function. SA and FA treatments, with a concentration of 10 μM, had attenuated effects on salt-stressed plants, causing a decrease in proline and SA level, and indicating that the plants suffered less metabolic disturbance. Polyphenolic compounds, especially FA, SiA, KAE, and QUE, were increased in FA and SA treatments in salt-stressed plants. Consequently, antioxidant activities were increased, and photosynthetic performances were improved. FA resulted in a better ameliorative effect on salt stress compared to SA.https://www.mdpi.com/2223-7747/10/11/2346<i>Brassica rapa</i> ssp. <i>pekinensis</i>phenolic compoundsfoliar treatmentphotosynthetic performancesalicylic acidferulic acid
spellingShingle Ida Linić
Selma Mlinarić
Lidija Brkljačić
Iva Pavlović
Ana Smolko
Branka Salopek-Sondi
Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic Performance
Plants
<i>Brassica rapa</i> ssp. <i>pekinensis</i>
phenolic compounds
foliar treatment
photosynthetic performance
salicylic acid
ferulic acid
title Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic Performance
title_full Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic Performance
title_fullStr Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic Performance
title_full_unstemmed Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic Performance
title_short Ferulic Acid and Salicylic Acid Foliar Treatments Reduce Short-Term Salt Stress in Chinese Cabbage by Increasing Phenolic Compounds Accumulation and Photosynthetic Performance
title_sort ferulic acid and salicylic acid foliar treatments reduce short term salt stress in chinese cabbage by increasing phenolic compounds accumulation and photosynthetic performance
topic <i>Brassica rapa</i> ssp. <i>pekinensis</i>
phenolic compounds
foliar treatment
photosynthetic performance
salicylic acid
ferulic acid
url https://www.mdpi.com/2223-7747/10/11/2346
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