Overview of Signal Transduction in Plants Under Salt and Drought Stresses

Shomali, Aida; Aliniaeifard, Sasan

doi:10.1007/978-3-030-40277-8_9

Cited by 13 publications

(16 citation statements)

References 161 publications

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“…Salt stress adversely affects crop productivity and survival by exerting osmotic and ionic stresses on plants [ 103 ]. GABA accumulation is an endogenous response of plants to salinity stress [ 28 , 104 ], suggesting a role for GABA in alleviating salt stress [ 20 ].…”

Section: Discussionmentioning

confidence: 99%

Synergistic Effects of Melatonin and Gamma-Aminobutyric Acid on Protection of Photosynthesis System in Response to Multiple Abiotic Stressors

Shomali

Aliniaeifard

Didaran

et al. 2021

Cells

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GABA (gamma-aminobutyric acid) and melatonin are endogenous compounds that enhance plant responses to abiotic stresses. The response of Vicia faba to different stressors (salinity (NaCl), poly ethylene glycol (PEG), and sulfur dioxide (SO2)) was studied after priming with sole application of GABA and melatonin or their co-application (GABA + melatonin). Both melatonin and GABA and their co-application increased leaf area, number of flowers, shoot dry and fresh weight, and total biomass. Plants treated with GABA, melatonin, and GABA + melatonin developed larger stomata with wider aperture compared to the stomata of control plants. The functionality of the photosynthetic system was improved in primed plants. To investigate the photosynthetic functionality in details, the leaf samples of primed plants were exposed to different stressors, including SO2, PEG, and NaCl. The maximum quantum yield of photosystem II (PS II) was higher in the leaf samples of primed plants, while the non-photochemical quenching (NPQ) of primed plants was decreased when leaf samples were exposed to the stressors. Correlation analysis showed the association of initial PIabs with post-stress FV/FM and NPQ. Stressors attenuated the association of initial PIabs with both FV/FM and NPQ, while priming plants with GABA, melatonin, or GABA + melatonin minimized the effect of stressors by attenuating these correlations. In conclusion, priming plants with both GABA and melatonin improved growth and photosynthetic performance of Vicia faba and mitigated the effects of abiotic stressors on the photosynthetic performance.

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Section: Discussionmentioning

confidence: 99%

Synergistic Effects of Melatonin and Gamma-Aminobutyric Acid on Protection of Photosynthesis System in Response to Multiple Abiotic Stressors

Shomali

Aliniaeifard

Didaran

et al. 2021

Cells

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“…Even though most of the transcription factors are up‐regulated during stress, a few are known to be down regulated that play an important role in primary plant growth processes (Bhargava & Sawant 2013). They alter gene expression patterns that prevents oxidative damage under such conditions (Priya et al 2019, Shomali & Aliniaeifard 2020). Lately an array of transcription factor families related to drought stress has been identified (Joshi et al 2016).…”

Section: Transcriptional Regulation and Signaling Under Water Deficit Stressmentioning

confidence: 99%

“…On drought exposure, ABA is readily synthesized in plant roots and translocated to the shoots, mainly the leaves (Salehi‐Lisar & Bakhshayeshan‐Agdam 2016). Expression of various genes involved in ABA synthesis such as zeaxanthin epoxidase ( ZEP ), aldehyde oxidase ( AAO3 ), 9‐cis‐epoxycarotenoid dioxygenase3 ( NCED3 ), and molybdenum cofactor sulfurase gene ( MCSU ) are upregulated during stress (Feki & Brini 2016; Kaur et al 2016; Shomali & Aliniaeifard 2020) leading to ABA synthesis and accumulation. The accumulated ABA further activates signaling pathways involved in imparting tolerance during drought stress (Todaka et al 2019).…”

Section: Transcriptional Regulation and Signaling Under Water Deficit Stressmentioning

confidence: 99%

“…Lately, several ABA receptors such as G‐protein‐coupled receptors and G‐protein‐coupled receptor‐type G‐proteins have been reported but their role in ABA signaling during stress is still not substantiated (Golldack et al 2014; Priya et al 2019). Several studies have reported the involvement of MAPK pathway in drought response progresses via production of antioxidants and osmolytes (Shomali & Aliniaeifard 2020).…”

Section: Transcriptional Regulation and Signaling Under Water Deficit Stressmentioning

confidence: 99%

“…MAPK pathways are generally activated by sensors/receptors like G‐protein‐coupled receptors, protein tyrosine kinases, and histidine kinases (Shomali & Aliniaeifard 2020). MAPKKK protein activation phosphorylates serine/threonine residues at the conserved motif, S/T‐X3‐5‐S/T, present in the MAPKK activation loop, thereby activating the MAPKK.…”

Section: Transcriptional Regulation and Signaling Under Water Deficit Stressmentioning

confidence: 99%

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Scrutinizing the impact of water deficit in plants: Transcriptional regulation, signaling, photosynthetic efficacy, and management

Kaur

Kohli

Khanna

et al. 2021

Physiologia Plantarum

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Suboptimal availability of water limits plant growth, development, and performance.Drought is one of the leading factors responsible for worldwide crop yield reduction. In the future, owing to climate changes, more agricultural land will be affected by prolonged periods of water deficit. Thus, understanding the fundamental mechanism of drought response is a major scientific concern for improvement of crop production. To combat drought stress, plants deploy varied mechanistic strategies and alter their morphological, physiochemical, and molecular attributes. This helps plant to enhance water uptake and storage, reduce water loss and avoid wilting. Induction of several transcription factors and drought responsive genes leads to synthesis of stress proteins, regulation of water channels i.e. aquaporins and production of osmolytes that are essential for maintenance of osmotic balance at the cellular level. Self-and hormone-regulated signaling pathways are often stimulated by plants after receiving drought stress signals via secondary messengers, mitogen-activated protein kinases, and stress hormones. These signaling cascades often leads to stomatal closure and reduction in transpiration rates. Reduced carbon dioxide diffusion in chloroplast, lowered efficacy of photosystems, and other metabolic constraints limits the key regulatory photosynthetic process during water deficit. The impact of these stomatal and nonstomatal limitations varies with stress intensity, superimposed stresses and plant species. A clear understanding of the drought resistance process is thus important before adopting strategies for imparting drought tolerance in plants. These management practices at present include exogenous hormone application, breeding, and genetic engineering techniques for combating the water deficit issues.

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Drought Stress: Involvement of Plant Hormones in Perception, Signaling, and Response

Aliniaeifard

Rezayian

Mousavi

2023

Plant Hormones and Climate Change

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Overview of Signal Transduction in Plants Under Salt and Drought Stresses

Cited by 13 publications

References 161 publications

Synergistic Effects of Melatonin and Gamma-Aminobutyric Acid on Protection of Photosynthesis System in Response to Multiple Abiotic Stressors

Synergistic Effects of Melatonin and Gamma-Aminobutyric Acid on Protection of Photosynthesis System in Response to Multiple Abiotic Stressors

Scrutinizing the impact of water deficit in plants: Transcriptional regulation, signaling, photosynthetic efficacy, and management

Drought Stress: Involvement of Plant Hormones in Perception, Signaling, and Response

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