Role of salicylic acid in induction of plant defense system in chickpea (<i>Cicer arietinum</i>L.)

War, Abdul Rashid; Paulraj, Michael Gabriel; War, Mohd Yousf; Ignacimuthu, Savarimuthu

doi:10.4161/psb.6.11.17685

Cited by 191 publications

(120 citation statements)

References 32 publications

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“…Similar explanation was reported by Parida et al, (2016). Also, War et al, (2011) concluded that SA plays an important role in induction of plant defensive system against a variety of biotic and abiotic stresses.…”

Section: Resultssupporting

confidence: 66%

Effects of Exogenous Salicylic Acid on Morphological and Biochemical Characteristics of Jatropha Curcas L. Irrigated with Saline Water

2017

AJAS

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Salinity is one of the major rate-limiting to crop productivity. A field study was conducted at two developmental stages of Jatropha curcas L. namely: the juvenile stage (1-2 years) and the early mature stage (3-4 years). Three levels of water salinity were prepared by diluting sea water (Suez Canal water) to give 2.3, 4.7 and 7.0 dSm -1 , in addition to fresh water (0.32dSm -1 ). Jatropha plants were foliar sprayed with three levels of salicylic acid (0.0, 5.0 and 10 mM). On the juvenile stage, the obtained results indicated that the most effective treatment for vegetative growth characters such as total leaf area (TLA); leaf relative water content (RWC L ); relative growth rate (RGR) and leaf dry weight (LDW) was performed when Jatropha plants were irrigated with fresh water, without significant difference, than that irrigated plants with either 2.3 or 4.7 dSm -1 . Application of 5.0 mM salicylic acid (SA) increased RGR, TLA and LDW for plants irrigated with saline water at 4.7 dSm -1 as compared to either 0.0 mM or 10 m M SA. On the early mature stage, application of 5.0 mM SA had a positive effect on both vegetative characters and seed yield for 4.7dSm -1 salinity treatments as compared to control treatment. On the other hand, values of RWC L indicated that there was no water deficit in leaves of treatments irrigated with saline water or control. This indicates that application of SA may minimize salinity stress. Foliar application of SA effectively increased chlorophyll. Generally, spraying jatropha shrubs with SA had a positive effect in reducing the negative impact of water salinity.

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Section: Resultssupporting

confidence: 66%

Effects of Exogenous Salicylic Acid on Morphological and Biochemical Characteristics of Jatropha Curcas L. Irrigated with Saline Water

2017

AJAS

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“…SA regulates the components of its own signalling pathway, being involved also in cross-talk with other pathways mediating plant resistance. SA could be utilized for the induction of plant defence system that enables the plant to withstand many biotic and abiotic stresses (War et al 2011). Photosynthesis is one of the main targets of environmental stressors.…”

Section: Introductionmentioning

confidence: 99%

Salicylic acid and photosynthesis: signalling and effects

et al. 2014

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Salicylic acid (SA) is a well-known signalling molecule playing a role in local and systemic acquired resistance against pathogens as well as in acclimation to certain abiotic stressors. As a stress-related signalling compound, it may directly or indirectly affect various physiological processes, including photosynthesis. The effects of exogenously applied SA on plant 2 physiological processes under optimal environmental conditions are controversial. Several studies suggest that SA may have a positive effect on germination or plant growth in various plant species. However, SA may also act as a stress factor, having a negative influence on various physiological processes. Its mode of action depends greatly on several factors, such as the plant species, the environmental conditions (light, temperature, etc.) and the concentration. Exogenous SA may also alleviate the damaging effects of various stress factors, and this protection may also be manifested as higher photosynthetic capacity.Unfavourable environmental conditions have also been shown to increase the endogenous SA level in plants. Recent results strongly suggest that controlled SA levels are important in plants for optimal photosynthetic performance and for acclimation to changing environmental stimuli. The present review discusses the effects of exogenous and endogenous SA on the photosynthetic processes under optimal and stress conditions. Running title: Salicylic acid and photosynthesis

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“…35,141 Induction of H 2 O 2 has been studied in oat, wheat, barley and groundnut against D. noxia, R. padi, Schizaphis graminum Rond., H. armigera and S. litura. 4,5,132,139 Argandona et al 144 observed induction of H 2 O 2 in barley infested with S. graminum after 20 min of infestation, indicating that H 2 O 2 could be the beginning of a cascade of physiological and molecular events leading to production of further defensive components, and protection of plants from subsequent damage. ROS mediate the defensive gene activation and establish additional defenses by regulating the transcription and/or by interacting with other signal components like phosphorylation in plant systems in response to a variety of stresses.…”

Section: Future Outlookmentioning

confidence: 99%

“…Salicylic acid (SA), a benzoic acid derivative, is an important phytohormone involved in regulation of plant defense. 132 It is an important endogenous plant growth regulator that generates a wide range of metabolic and physiological responses in plants involved in defense in addition to their impact on plant growth and development. 133 Responses to SA depend on a regulatory protein called Non-Expressor of Pathogenesis-Related Genes1 (NPR1).…”

Section: Role Of Reactive Oxygen Species (Ros) In Plant Defensementioning

confidence: 99%