Mechanisms of Abscisic Acid-Mediated Drought Stress Responses in Plants

Aslam, Mehtab Muhammad; Waseem, Muhammad; Jakada, Bello Hassan; Okal, Eyalira Jacob; Lei, Zuliang; Saqib, Hafiz Sohaib Ahmad; Yuan, Wei; Xu, Weifeng; Zhang, Qian

doi:10.3390/ijms23031084

Cited by 165 publications

(91 citation statements)

References 201 publications

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“…Plants' responses to drought conditions are particularly influenced by ethylene and ABA. It is expected that ABA and GAs present an antagonistic behavior in the response to drought, although the molecular mechanisms of their interaction in this context have not been elucidated [162]. Ethylene modulates the levels of other phytohormones (including GAs) to cope with this growth-limiting situation.…”

Section: Water Stressmentioning

confidence: 99%

Interactions of Gibberellins with Phytohormones and Their Role in Stress Responses

Castro-Camba¹,

Sánchez²,

Vidal³

et al. 2022

Horticulturae

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Gibberellins are amongst the main plant growth regulators. Discovered over a century ago, the interest in gibberellins research is growing due to their current and potential applications in crop production and their role in the responses to environmental stresses. In the present review, the current knowledge on gibberellins’ homeostasis and modes of action is outlined. Besides this, the complex interrelations between gibberellins and other plant growth regulators are also described, providing an intricate network of interactions that ultimately drives towards precise and specific gene expression. Thus, genes and proteins identified as being involved in gibberellin responses in model and non-model species are highlighted. Furthermore, the molecular mechanisms governing the gibberellins’ relation to stress responses are also depicted. This review aims to provide a comprehensive picture of the state-of-the-art of the current perceptions of the interactions of gibberellins with other phytohormones, and their responses to plant stresses, thus allowing for the identification of the specific mechanisms involved. This knowledge will help us to improve our understanding of gibberellins’ biology, and might help increase the biotechnological toolbox needed to refine plant resilience, particularly under a climate change scenario.

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Section: Water Stressmentioning

confidence: 99%

Interactions of Gibberellins with Phytohormones and Their Role in Stress Responses

Castro-Camba¹,

Sánchez²,

Vidal³

et al. 2022

Horticulturae

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“…Changing climatic regimes are posing a threat to life on Earth because meeting the rising food demand and achieving sustainable agriculture for a growing population is becoming an uphill task in the present scenario of changing climatic conditions [1], which include droughts, heavy floods, earthquakes, and temperature variations [2,3]. Drought stress interrupts many physio-biochemical processes, hindering plant growth and development [4,5]. Plants can frequently withstand limited water conditions but at the cost of substantial loss in total biomass and productivity.…”

Section: Introduction Drought Stressmentioning

confidence: 99%

Plants’ Physio-Biochemical and Phyto-Hormonal Responses to Alleviate the Adverse Effects of Drought Stress: A Comprehensive Review

Wahab

Abdi

Saleem

et al. 2022

Plants

207

103

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Water, a necessary component of cell protoplasm, plays an essential role in supporting life on Earth; nevertheless, extreme changes in climatic conditions limit water availability, causing numerous issues, such as the current water-scarce regimes in many regions of the biome. This review aims to collect data from various published studies in the literature to understand and critically analyze plants’ morphological, growth, yield, and physio-biochemical responses to drought stress and their potential to modulate and nullify the damaging effects of drought stress via activating natural physiological and biochemical mechanisms. In addition, the review described current breakthroughs in understanding how plant hormones influence drought stress responses and phytohormonal interaction through signaling under water stress regimes. The information for this review was systematically gathered from different global search engines and the scientific literature databases Science Direct, including Google Scholar, Web of Science, related studies, published books, and articles. Drought stress is a significant obstacle to meeting food demand for the world’s constantly growing population. Plants cope with stress regimes through changes to cellular osmotic potential, water potential, and activation of natural defense systems in the form of antioxidant enzymes and accumulation of osmolytes including proteins, proline, glycine betaine, phenolic compounds, and soluble sugars. Phytohormones modulate developmental processes and signaling networks, which aid in acclimating plants to biotic and abiotic challenges and, consequently, their survival. Significant progress has been made for jasmonates, salicylic acid, and ethylene in identifying important components and understanding their roles in plant responses to abiotic stress. Other plant hormones, such as abscisic acid, auxin, gibberellic acid, brassinosteroids, and peptide hormones, have been linked to plant defense signaling pathways in various ways.

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“…Several abiotic stresses affect crop growth and production and increase food security risks ( Habibpourmehraban, 2022 ). Drought is one of the severe abiotic stresses which has a huge impact on the global food supply chain ( Malik et al, 2021 ; De Freitas et al, 2022 ; Muhammad et al, 2022 ). DT is an important trait that plants need to survive under DS ( Yadav et al, 2021 ; Batool et al, 2022b ; Sakoda et al, 2022 ).…”

Section: Genetic Engineering For Drought Stress Tolerance In Ramiementioning

confidence: 99%

Improving Drought Stress Tolerance in Ramie (Boehmeria nivea L.) Using Molecular Techniques

Rasheed

Jie²,

Nawaz³

et al. 2022

Front. Plant Sci.

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Ramie is one of the most significant fiber crops and contributes to good quality fiber. Drought stress (DS) is one of the most devastating abiotic factors which is accountable for a substantial loss in crop growth and production and disturbing sustainable crop production. DS impairs growth, plant water relation, and nutrient uptake. Ramie has evolved a series of defense responses to cope with DS. There are numerous genes regulating the drought tolerance (DT) mechanism in ramie. The morphological and physiological mechanism of DT is well-studied; however, modified methods would be more effective. The use of novel genome editing tools like clustered regularly interspaced short palindromic repeats (CRISPR) is being used to edit the recessive genes in crops to modify their function. The transgenic approaches are used to develop several drought-tolerant varieties in ramie, and further identification of tolerant genes is needed for an effective breeding plan. Quantitative trait loci (QTLs) mapping, transcription factors (TFs) and speed breeding are highly studied techniques, and these would lead to the development of drought-resilient ramie cultivars. The use of hormones in enhancing crop growth and development under water scarcity circumstances is critical; however, using different concentrations and testing genotypes in changing environments would be helpful to sort the tolerant genotypes. Since plants use various ways to counter DS, investigating mechanisms of DT in plants will lead to improved DT in ramie. This critical review summarized the recent advancements on DT in ramie using novel molecular techniques. This information would help ramie breeders to conduct research studies and develop drought tolerant ramie cultivars.

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Mechanisms of Abscisic Acid-Mediated Drought Stress Responses in Plants

Cited by 165 publications

References 201 publications

Interactions of Gibberellins with Phytohormones and Their Role in Stress Responses

Interactions of Gibberellins with Phytohormones and Their Role in Stress Responses

Plants’ Physio-Biochemical and Phyto-Hormonal Responses to Alleviate the Adverse Effects of Drought Stress: A Comprehensive Review

Improving Drought Stress Tolerance in Ramie (Boehmeria nivea L.) Using Molecular Techniques

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