Salicylic acid increases tolerance to oxidative stress induced by hydrogen peroxide accumulation in leaves of cadmium-exposed flax (<i>Linum usitatissimum</i> L.)

Belkadhi, Aïcha; Haro, Antonio De; Soengas, Pilar; Obregón, Sara; Cartea, María Elena; Chaïbi, Wided; Djebali, Wahbi

doi:10.1080/17429145.2014.890751

Cited by 46 publications

(19 citation statements)

References 46 publications

(49 reference statements)

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“…Correspondingly, the previous report was shown that catalase genes ( CAT1 , CAT2 , and CAT3 ) from maize differently responded to exogenous SA application [ 55 ]. This event supported the idea that SA may cause oxidative stress via an increase of H 2 O 2 level [ 59 ]; however, pretreatment of plants with the suitable concentrations of SA might induce defense-related genes in scavenging H 2 O 2 [ 36 ]. The increase of three different catalase genes expression in hot pepper and small radish can play an important role in response to environmental stresses [ 60 , 61 ].…”

Section: Discussionsupporting

confidence: 64%

Salicylic Acid Induces Resistance in Rubber Tree against Phytophthora palmivora

Deenamo

Kuyyogsuy

Khompatara

et al. 2018

IJMS

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Induced resistance by elicitors is considered to be an eco-friendly strategy to stimulate plant defense against pathogen attack. In this study, we elucidated the effect of salicylic acid (SA) on induced resistance in rubber tree against Phytophthora palmivora and evaluated the possible defense mechanisms that were involved. For SA pretreatment, rubber tree exhibited a significant reduction in disease severity by 41%. Consistent with the occurrence of induced resistance, the pronounced increase in H2O2 level, catalase (CAT) and peroxidase (POD) activities were observed. For defense reactions, exogenous SA promoted the increases of H2O2, CAT, POD and phenylalanine ammonia lyase (PAL) activities, including lignin, endogenous SA and scopoletin (Scp) contents. However, SA had different effects on the activity of each CAT isoform in the particular rubber tree organs. Besides, three partial cDNAs encoding CAT (HbCAT1, HbCAT2 and HbCAT3) and a partial cDNA encoding PAL (HbPAL) were isolated from rubber tree. Moreover, the expressions of HbCAT1, HbPAL and HbPR1 were induced by SA. Our findings suggested that, upon SA priming, the elevated H2O2, CAT, POD and PAL activities, lignin, endogenous SA and Scp contents, including the up-regulated HbCAT1, HbPAL and HbPR1 expressions could potentiate the resistance in rubber tree against P. palmivora.

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Section: Discussionsupporting

confidence: 64%

Salicylic Acid Induces Resistance in Rubber Tree against Phytophthora palmivora

Deenamo

Kuyyogsuy

Khompatara

et al. 2018

IJMS

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“…This ROS detoxification induced by SA also associated with improved photosystem II (PSII) efficiency. Belkadhi et al [147] showed that Linum usitatissimum plants showed a lower amount of lipid and protein oxidation and membrane oxidation under Cd stress when pretreated with SA. This protection was availed by the enhanced activities of SOD, GPX, and APX as well as the 2,2 0 -diphenyl-1-picrylhydrazyl (DPPH) scavenging activity and ferricreducing antioxidant power (FRAP).…”

Section: Salicylic Acid and Ros Detoxificationmentioning

confidence: 99%

“…They also concluded that NO may act as downstream of SA signaling in the reduction of induced oxidative damage [152]. SA-mediated H 2 O 2 signaling and subsequent Cd stress tolerance was revealed in L. usitatissimum [147]. Seedlings pretreated with 250 or 1000 μM SA resulted in enhanced production of H 2 O 2 because of inhibited CAT activity.…”

Section: Interaction Of Sa With Other Signaling Moleculesmentioning

confidence: 99%

“…Although the control plants with SA pretreatment showed significant (1.2 fold) increase in H 2 O 2, this level is remarkably lower when compared with Cd alone and Cd+SA. These results indicated that SA could regulate the Cd-induced oxidative stress because Cd-treated seedlings primed with SA exhibited a higher level of total antioxidant capacities and increased activities of H 2 O 2 -detoxifying enzymes [147]. Exogenous SA application was found to activate GSH synthesis in B. juncea and B. napus and showed enhanced protection against drought-and saltinduced oxidative damages [44,40].…”

Section: Interaction Of Sa With Other Signaling Moleculesmentioning

confidence: 99%

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Salicylic Acid: An All-Rounder in Regulating Abiotic Stress Responses in Plants

Hasanuzzaman¹,

Bhuiyan²,

Anee³

et al. 2017

Phytohormones - Signaling Mechanisms and Crosstalk in Plant Development and Stress Responses

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Salicylic acid (SA) is an endogenous growth regulator of phenolic nature and also a signaling molecule, which participates in the regulation of physiological processes in plants such as growth, photosynthesis, and other metabolic processes. Several studies support a major role of SA in modulating the plant response to various abiotic stresses. It is a well-founded fact that SA potentially generates a wide array of metabolic responses in plants and also affects plant-water relations. This molecule also found to be very active in mitigating oxidative stress under adverse environmental conditions. Since abiotic stress remained the greatest constraints for crop production worldwide, finding effective approaches is an important task for plant biologists. Hence, understanding the physiological role of SA would help in developing abiotic stress tolerance in plants. In this chapter, we will shed light on the recent progress on the regulatory role of SA in mitigating abiotic stress.

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“…On the other hand, they also play a signaling role, and changes in production of ROS can act as a signal that changes the transcription of genes, thereby favoring the adaptation of plants to stresses (Jajic et al 2015). Among ROS species, the hydrogen peroxide (H2O2) is an important compound involved in plant response to different environmental stressors (Belkadhi et al 2014, Jajic et al 2015. Moreover, H2O2 protects photosynthetic membranes during light stress (Laloi et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Response of juvenile progeny of seven forest tree species and their populations to simulated climate change-related stressors, heat, elevated humidity and drought

Pliūra¹,

Jankauskienė²,

Lygis³

et al. 2018

iForest

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Response of juvenile progeny of seven forest tree species and their populations to simulated climate change-related stressors, heat, elevated humidity and drought Alfas Pliūra The study aimed to evaluate response and phenotypic plasticity of juvenile progeny of seven forest tree species Pinus sylvestris, Picea abies, Quercus robur, Fraxinus excelsior, Alnus glutinosa, Betula pendula and Populus tremula and their populations to climate change-related stressors, simulated in a phytotron -heat and elevated humidity and heat and drought -in comparison to performance in ambient (control) conditions. Treatment effect on sapling morphometric, physiological and biochemical traits was significant except for health condition, transpiration and photosynthetic rates and water use efficiency (WUE). Species effect and species-by-treatment interaction were strongly significant in most traits studied, indicating a great inter-specific variability of responses to the applied treatments. Compared to control, stem diameter increment was lower for most species following both hot-wet and hotdry treatments, while treatment impact on height increment was less pronounced and sometimes even positive. Drought caused significant defoliation in P. tremula, A. glutinosa and B. pendula, while under hot-wet treatment the defoliation in most species was lower than in control. Following hot dry treatment, WUE in P. abies, P. sylvestris and B. pendula was lower than following both hot-wet treatment and control, while in P. tremula, A. glutinosa and Q. robur WUE was higher. This suggests that the latter species are able to maintain a balance between photosynthesis and transpiration. Photosynthetic rate was highest in P. tremula, B. pendula and A. glutinosa, however it was much more negatively affected by water deficit in these three species than in other tested species. In most cases, drought had a negative effect on production of pigments in deciduous tree species, which, together with increased amounts of malondialdehyde and hydrogen peroxide, indicated a presence of an oxidative stress. Significant population effect and population-by-treatment interactions found for most traits showed different plasticity and response of tree populations to the treatments. Although, only 19% of the populations showed significant ecovalencies. Some of the observed reactions may not be considered as adaptive acclimation as decreasing growth of some species and populations indicates deteriorating performance which may lead to changes in their competitiveness, thus compromising regeneration, persistence of natural successions and sustainability of forest ecosystems. Keywords: Climate Change, Stress, Growth, Physiology, Transpiration, Photosynthesis, Water Use Efficiency, Biochemical Parameters, Phenotypic Plasticity IntroductionOver the few last millennia forest tree species were subjected to conspicuous climatic and environmental changes and were forced to react to these changes by migration and genetic adaptation to new growing conditions (Huntley & Birks 1983)....

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Salicylic acid increases tolerance to oxidative stress induced by hydrogen peroxide accumulation in leaves of cadmium-exposed flax (Linum usitatissimum L.)

Abstract: 2014) Salicylic acid increases tolerance to oxidative stress induced by hydrogen peroxide accumulation in leaves of cadmium-exposed flax (Linum usitatissimum L.

Cited by 46 publications

References 46 publications

Salicylic Acid Induces Resistance in Rubber Tree against Phytophthora palmivora

Salicylic Acid Induces Resistance in Rubber Tree against Phytophthora palmivora

Salicylic Acid: An All-Rounder in Regulating Abiotic Stress Responses in Plants

Response of juvenile progeny of seven forest tree species and their populations to simulated climate change-related stressors, heat, elevated humidity and drought

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