Biotic and Abiotic Stress Signaling Mediated by Salicylic Acid

Kumar, Dhirendra; Chapagai, Danda; Dean, Phillip T.; Davenport, Mackenzie L.

doi:10.1007/978-1-4939-2211-6_12

Cited by 9 publications

(5 citation statements)

References 141 publications

(170 reference statements)

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“…Much of the work exploring these pathways was done in Arabidopsis model systems [24,26]. To our knowledge, and lacking from recent reviews, no work has been done exploring differential effects of pathogen and pest stimulation of the IC and PAL pathways for salicylic acid biosynthesis either in Arabidopsis or other plant systems [19,24,25,26,27].…”

Section: Primary Effects Of Samentioning

confidence: 99%

The Ecology of Salicylic Acid Signaling: Primary, Secondary and Tertiary Effects with Applications in Agriculture

Filgueiras

Martins

Pereira

et al. 2019

IJMS

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The salicylic acid pathway is one of the primary plant defense pathways, is ubiquitous in vascular plants, and plays a role in rapid adaptions to dynamic abiotic and biotic stress. Its prominence and ubiquity make it uniquely suited for understanding how biochemistry within plants can mediate ecological consequences. Induction of the salicylic acid pathway has primary effects on the plant in which it is induced resulting in genetic, metabolomic, and physiologic changes as the plant adapts to challenges. These primary effects can in turn have secondary consequences for herbivores and pathogens attacking the plant. These secondary effects can both directly influence plant attackers and mediate indirect interactions between herbivores and pathogens. Additionally, stimulation of salicylic acid related defenses can affect natural enemies, predators and parasitoids, which can recruit to plant signals with consequences for herbivore populations and plant herbivory aboveground and belowground. These primary, secondary, and tertiary ecological consequences of salicylic acid signaling hold great promise for application in agricultural systems in developing sustainable high-yielding management practices that adapt to changing abiotic and biotic environments.

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Section: Primary Effects Of Samentioning

confidence: 99%

The Ecology of Salicylic Acid Signaling: Primary, Secondary and Tertiary Effects with Applications in Agriculture

Filgueiras

Martins

Pereira

et al. 2019

IJMS

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“…Our study indicates that the transient and small amounts of ROS induced by lower concentrations of SA (10 and 20 µM) plays a pivotal role in plant stress resistance, although some previous studies have shown that lower concentrations of SA (0.01 -0.05 mM), do not effectively induce ROS accumulation (Kumar et al 2015). To explain this, we speculate that the time to detect ROS content is critical to understanding the relationship between SA and ROS production.…”

Section: Discussionmentioning

confidence: 72%

“…Environmental stresses are often limiting for plant productivity (Kumar et al 2015). In order to cope with such adverse situations, plants have evolved welldeveloped mechanisms that help to perceive the stress signal and enable optimal growth response (Verma et al 2016).…”

Section: Introductionmentioning

confidence: 99%

The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana

Yu¹,

Liu²,

Feng³

et al. 2020

Biologia plant.

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Salicylic acid (SA) is an important plant hormone involved in the activation of defense responses against environmental stresses. However, there are still large of unsolved mysteries about how SA pretreatment affects the establishment of plant stress tolerance. In this study, application of SA at different concentrations and different times were conducted to investigate their effects on the response of Arabidopsis seedlings to salt stress. The pretreatment with 10 or 20 μM SA for more than 6 h promoted Arabidopsis seedlings resistance to salt stress. On the other hand, pretreatment with 200 μM SA reduced Arabidopsis resistance to salt stress and aggravated oxidative damage to the seedlings. At all concentrations used, SA pretreatment inhibited the total respiration and promoted reactive oxygen species (ROS) generation. However, the ROS content in 10 or 20 μM SA pretreated seedlings decreased to the basal level within 6 h and high activities of antioxidant enzymes and alternative oxidase were maintained. Notably, the SA-enhanced salt stress resistance was significantly impaired by blocking alternative oxidase (AOX) pathway. Our findings indicate that SA-mediated salt stress response is in a dose-and time-dependent manner and that the effects were related to the induction of AOX capacity and antioxidant system.Additional key words: alternative oxidase, antioxidant enzymes, reactive oxygen species, resistance index.

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“…Another phenolic compound formed in the shikimic acid pathway, which also presented stimulation in coffee plants subjected to low doses, is salicylic acid, a compound that may protect plants from biotic and abiotic stresses [ 46 , 57 ]. Thus, glyphosate application can alter the levels of salicylic acid in plants, especially in species sensitive to the herbicide, since the inactivation of EPSPS can compromise salicylic acid production, and as seen in this study, the increase in salicylic acid levels occurred at lower doses to the detriment of reduction at higher doses ( Figure 6 ).…”

Section: Discussionmentioning

confidence: 99%

Hormetic Effect of Glyphosate on the Morphology, Physiology and Metabolism of Coffee Plants

Costa

Bevilaqua

Krenchinski

et al. 2023

Plants

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Glyphosate is a nonselective herbicide of systemic action that inhibits the enzyme 5-enolpyruvylshikimate-3-phosphate synthase, thus compromising amino acid production and consequently the growth and development of susceptible plants. The objective of this study was to evaluate the hormetic effect of glyphosate on the morphology, physiology, and biochemistry of coffee plants. Coffee seedlings (Coffea arabica cv Catuaí Vermelho IAC-144) were transplanted into pots filled with a mixture of soil and substrate and subjected to ten doses of glyphosate: 0, 11.25, 22.5, 45, 90, 180, 360, 720, 1440, and 2880 g acid equivalent (ae) ha−1. Evaluations were performed using the morphological, physiological, and biochemical variables. Data analysis for the confirmation of hormesis occurred with the application of mathematical models. The hormetic effect of glyphosate on coffee plant morphology was determined by the variables plant height, number of leaves, leaf area, and leaf, stem, and total dry mass. Doses from 14.5 to 30 g ae ha−1 caused the highest stimulation. In the physiological analyses, the highest stimulation was observed upon CO2 assimilation, transpiration, stomatal conductance, carboxylation efficiency, intrinsic water use efficiency, electron transport rate, and photochemical efficiency of photosystem II at doses ranging from 4.4 to 55 g ae ha−1. The biochemical analyses revealed significant increases in the concentrations of quinic acid, salicylic acid, caffeic acid, and coumaric acid, with maximum stimulation at doses between 3 and 140 g ae ha−1. Thus, the application of low doses of glyphosate has positive effects on the morphology, physiology, and biochemistry of coffee plants.

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Biotic and Abiotic Stress Signaling Mediated by Salicylic Acid

Cited by 9 publications

References 141 publications

The Ecology of Salicylic Acid Signaling: Primary, Secondary and Tertiary Effects with Applications in Agriculture

The Ecology of Salicylic Acid Signaling: Primary, Secondary and Tertiary Effects with Applications in Agriculture

The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana

Hormetic Effect of Glyphosate on the Morphology, Physiology and Metabolism of Coffee Plants

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