ABA-induced stomatal movements in vascular plants during dehydration and rehydration

Hasan, Md. Mahadi; Gong, Lei; Nie, Zheng‐Fei; Li, Fengping; Ahammed, Golam Jalal; Fang, Xiang‐Wen

doi:10.1016/j.envexpbot.2021.104436

Cited by 60 publications

(52 citation statements)

References 88 publications

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“…4). The reduction in leaf gas exchange characteristics is considered the first line of defense against drought stress (Hasan et al 2021). The application of gypsum helped in the restoration of photosynthetic efficiency by regulating the activity of stomatal aperture (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Low water availability not only impairs the germination and seedling establishment but also reduces the overall fitness of the plants to withstand unfavorable environmental conditions (Anavella et al 2016). Drought-induced fluctuations at cellular level are related to the loss of turgor, reduced stomatal conductance, imbalance in membrane permeability, and accumulation of reactive oxygen species (ROS) (Shabbir et al 2016;Hasan et al 2021). Plants tend to adapt water limitations through various self-protection mechanisms, for instance, the regulation of stomatal aperture to adjust the photosynthetic capacity of mesophyll cells (Waseem et al 2021).…”

Section: Introductionmentioning

confidence: 99%

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Sulfate-Based Fertilizers Regulate Nutrient Uptake, Photosynthetic Gas Exchange, and Enzymatic Antioxidants to Increase Sunflower Growth and Yield Under Drought Stress

Shafiq

Nawaz

Majeed

et al. 2021

J Soil Sci Plant Nutr

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The challenging impact of drought to agricultural productivity requires the adoption of mitigation strategies with a better understanding of underlying mechanisms responsible for drought tolerance. The present study aimed at investigating the effects of sulfur-based fertilizers on mitigation of drought stress in sunflower. Sulfate-containing fertilizers, viz., ammonium sulfate, zinc sulfate, magnesium sulfate, potassium sulfate, and gypsum, were initially evaluated at two different rates (10 and 20 mg kg−1 soil equivalent to 20 and 40 kg ha−1, respectively) for nutrient uptake and growth-promoting traits in sunflower seedlings (cv. Hysun-33). The best performing fertilizer (gypsum) was then selected to evaluate the response of sunflower under drought stress imposed at flowering stage for three weeks (25–30% water holding capacity). Results indicated significant amelioration of drought stress with higher activity of photosynthetic apparatus, upregulation of antioxidative enzymes, and increased achene yield by gypsum application. In comparison to control, gypsum-treated plants (20 mg kg−1 soil) exhibited higher water status (32%), leaf photosynthetic rate (29%), transpiration rate (67%), and stomatal conductance (118%) under drought stress. The antioxidant enzyme activities of catalase, guaiacol peroxidase, and superoxide dismutase were also increased by 67%, 62%, and 126%, respectively, resulting in higher achene yield (19%) under water-deficit conditions. This study indicates that the application of sulfur-based fertilizers (gypsum) can be used to induce drought tolerance and obtain high sunflower yields under drought stress, and furthermore, it is a cost-effective strategy resulting in high benefit–cost ratio with respect to no gypsum application.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sulfate-Based Fertilizers Regulate Nutrient Uptake, Photosynthetic Gas Exchange, and Enzymatic Antioxidants to Increase Sunflower Growth and Yield Under Drought Stress

Shafiq

Nawaz

Majeed

et al. 2021

J Soil Sci Plant Nutr

View full text Add to dashboard Cite

show abstract

“…However, decreasing fertile area, water scarcity, the effects of global warming, and the low efficacy of present fertilizers and pesticides exacerbate abiotic stresses on crops, lowering their yields. Drought, for example, costs billions of dollars in crop yield loss each year [ 3 , 4 ]. As a result, decreasing food production is a serious concern.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, decreasing food production is a serious concern. Drought-tolerant crop varieties have taken a long time to develop, yet there are still few economically feasible vigorous drought-tolerant species [ 3 , 4 , 5 , 6 ]. Simultaneously, public anxiety about the safety of the transgenic crop is high [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesized Metal Oxide Nanoparticles Mediate Growth Regulation and Physiology of Crop Plants under Drought Stress

Alabdallah

Hasan

Hammami

et al. 2021

Plants

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Metal oxide nanoparticles (MONPs) are regarded as critical tools for overcoming ongoing and prospective crop productivity challenges. MONPs with distinct physiochemical characteristics boost crop production and resistance to abiotic stresses such as drought. They have recently been used to improve plant growth, physiology, and yield of a variety of crops grown in drought-stressed settings. Additionally, they mitigate drought-induced reactive oxygen species (ROS) through the aggregation of osmolytes, which results in enhanced osmotic adaptation and crop water balance. These roles of MONPs are based on their physicochemical and biological features, foliar application method, and the applied MONPs concentrations. In this review, we focused on three important metal oxide nanoparticles that are widely used in agriculture: titanium dioxide (TiO2), zinc oxide (ZnO), and iron oxide (Fe3O4). The impacts of various MONPs forms, features, and dosages on plant growth and development under drought stress are summarized and discussed. Overall, this review will contribute to our present understanding of MONPs’ effects on plants in alleviating drought stress in crop plants.

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“…Compatible osmolytes contribute to the regulation of plant growth by maintaining tissue water content and protecting the proper function of the enzyme (Elkelish et al 2019a), providing protection to major macromolecules and helping in stress signalling (Hasan et al 2019b;Hasan et al 2020b). Phytohormones play a crucial role in regulating the metabolism of osmolytes by integrating beneficial responses to the stress factor (Sharma et al 2019;Hasan et al 2021a;Hasan et al 2021b) and it was evident in this study that exogenous application not only increased the content of osmolytes but also finely regulated their metabolism. For example, proline synthesizing enzyme (γ-GK) up-regulated while catabolizing (PROX) one was down-regulated to result in greater accumulation of proline.…”

Section: Discussionmentioning

confidence: 65%

Alleviation of copper phytotoxicity by acetylsalicylic acid and nitric oxide application in mung bean involves the up-regulation of antioxidants, osmolytes and glyoxalase system

Abdulmajeed

Alnusairi

Alharbi

et al. 2021

Journal of Plant Interactions

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ABA-induced stomatal movements in vascular plants during dehydration and rehydration

Cited by 60 publications

References 88 publications

Sulfate-Based Fertilizers Regulate Nutrient Uptake, Photosynthetic Gas Exchange, and Enzymatic Antioxidants to Increase Sunflower Growth and Yield Under Drought Stress

Sulfate-Based Fertilizers Regulate Nutrient Uptake, Photosynthetic Gas Exchange, and Enzymatic Antioxidants to Increase Sunflower Growth and Yield Under Drought Stress

Green Synthesized Metal Oxide Nanoparticles Mediate Growth Regulation and Physiology of Crop Plants under Drought Stress

Alleviation of copper phytotoxicity by acetylsalicylic acid and nitric oxide application in mung bean involves the up-regulation of antioxidants, osmolytes and glyoxalase system

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