The critical role of biochar to mitigate the adverse impacts of drought and salinity stress in plants

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: May 8, 2023

Drought stress (DS) is a potential abiotic that substantially reducing crop productivity across the globe. Likewise, salinity (SS) another serious also major threat to global productivity. The rapid climate change increased intensity of both stresses which pose food security; therefore, it urgently needed tackle ensure better production. Globally, different measures are being used improve under conditions. Among these measures, biochar (BC) has been widely soil health and promote yield application BC improves organic matter, structure, aggregate stability, water nutrient holding capacity, activity beneficial microbes fungi, leads an appreciable increase in tolerance damaging stresses. protects membrane uptake, maintains homeostasis, reduces reactive oxygen species production (ROS) through enhanced antioxidant activities, thereby improving Moreover, BC-mediated improvements properties photosynthetic activity, chlorophyll synthesis, gene expression, stress-responsive proteins, maintain osmolytes hormonal balance, turn against osmotic ionic In conclusion, could be promising amendment bring drought Therefore, present review, we have discussed various mechanisms salt tolerance. This review will help readers learn more about role causing plants, provide new suggestions on how this current knowledge can develop

Language: Английский

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Unlocking the potential of biostimulants derived from organic waste and by-product sources: Improving plant growth and tolerance to abiotic stresses in agriculture

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 34, P. 103571 - 103571

Published: Feb. 15, 2024

Due to population growth and expanding economic activities, waste generation is on the increase globally. Reuse of or by-products in agriculture as biostimulants fertilizers contributes a circular economy. In recent years, there has been an increasing number studies organic waste-derived market for these products expanding. Many have addressed development from various wastes by-products. It worth noting that different types exhibit compositions key mechanisms when used biostimulants, which require analyzing mechanism action multiple fields such chemistry biology. Therefore, this review presents advances with respect biostimulants. Specifically, it outlines characteristics derived extraction techniques. The role organic-waste maintaining plant described, emphasizing their helping plants resist several abiotic stresses. Mechanisms by affect physiological changes are discussed. This provides theoretical foundation enable efficient material resource utilization evidences production environmentally friendly option recycling crop productivity.

Language: Английский

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Chlorophyll Fluorescence Parameters and Antioxidant Defense System Can Display Salt Tolerance of Salt Acclimated Sweet Pepper Plants Treated with Chitosan and Plant Growth Promoting Rhizobacteria

Agronomy, Journal Year: 2020, Volume and Issue: 10(8), P. 1180 - 1180

Published: Aug. 12, 2020

Salinity stress deleteriously affects the growth and yield of many plants. Plant promoting rhizobacteria (PGPR) chitosan both play an important role in combating salinity improving plant under adverse environmental conditions. The present study aimed to evaluate impacts PGPR on sweet pepper grown different regimes. For this purpose, two pot experiments were conducted 2019 2020 (Bacillus thuringiensis MH161336 106–8 CFU/cm3) applied as seed treatment foliar application (30 mg dm−3) plants (cv. Yolo Wonder) concentrations (34 68 mM). Our findings revealed that, chlorophyll fluorescence parameter (Fv/Fm ratio), a b concentrations, relative water content (RWC), fruit characters negatively affected significantly reduced higher concentration was more harmful. Nevertheless, electrolyte leakage, lipid peroxidation, hydrogen peroxide (H2O2), superoxide (O2−) increased stressed However, B. led improved resulted significant increase RWC, content, yield. Conversely, O2−, H2O2 Also, regulated proline accumulation enzyme activity, well number plant−1, fresh weight total saline

Language: Английский

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Responses of ajowan (Trachyspermum ammi L.) to exogenous salicylic acid and iron oxide nanoparticles under salt stress

Environmental Science and Pollution Research, Journal Year: 2020, Volume and Issue: 27(29), P. 36939 - 36953

Published: June 23, 2020

Language: Английский

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Linking abiotic stress, plant metabolites, biostimulants and functional food

Annals of Applied Biology, Journal Year: 2020, Volume and Issue: 178(2), P. 169 - 191

Published: Oct. 4, 2020

Abstract Plants must cope with different environmental stresses during their whole lifetime. Abiotic like drought, salt, mineral nutrition disturbances and temperature stress are commonly interconnected through some physiological events in stressed plants, such as the synthesis of protective plant compounds a response to stress. Many these, produced within primary or secondary metabolism, act functional not exclusively plants but other organisms well. Concurrently, many active biostimulants which can support tolerance productivity adverse growth conditions metabolites intermediates that may influence plant's edible parts nutritional quality. Such effects application elucidated enough, therefore, we aimed give an overview recent advances research related interplay among abiotic stress, response, plant‐derived food, focusing on link connects environment food chain.

Language: Английский

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Salicylic Acid Stimulates Antioxidant Defense and Osmolyte Metabolism to Alleviate Oxidative Stress in Watermelons under Excess Boron

Plants, Journal Year: 2020, Volume and Issue: 9(6), P. 724 - 724

Published: June 8, 2020

Boron (B) is a microelement required in vascular plants at high concentration that produces excess boron and toxicity many crops. B stress occurs widely limits plant growth crop productivity worldwide. Salicylic acid (SA) an essential hormone phenolic compound. The goal of this work to explore the role SA alleviation (10 mg L−1) watermelon morphological biochemical level. Excess altered nutrient concentrations caused significant reduction criteria; chlorophyll a, b, carotenoids; net photosynthetic rate; stomatal conductance transpiration rate seedlings, while intercellular carbon dioxide (CO2) was significantly increased compared control (0.5 L−1 B). Furthermore, accelerated generation reactive oxygen species (ROS), such as hydrogen peroxide (H2O2) induced cellular oxidative injury. application exogenous carotenoid contents exposed L−1), line with alleviating chlorosis by stress. Exogenously applied promoted photosynthesis and, consequently, biomass production seedlings treated level reducing accumulation, lipid peroxidation, H2O2, increasing levels most ROS, OH−. also activated antioxidant enzymes, superoxide dismutase (SOD), peroxidase (POD), ascorbate (APX) protected from ROS burst. In conclusion, can be used alleviate adverse effects boron.

Language: Английский

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Oxidative Stress Responses of Some Endemic Plants to High Altitudes by Intensifying Antioxidants and Secondary Metabolites Content

Plants, Journal Year: 2020, Volume and Issue: 9(7), P. 869 - 869

Published: July 9, 2020

Most endemic plant species have limited altitudinal ranges. At higher altitudes, they are subjected to various environmental stresses. However, these plants use unique defense mechanisms at high altitudes as a convenient survival strategy. The changes in antioxidant system and accumulation of different secondary metabolites (SMs) were investigated depending on altitude five endangered (Nepeta septemcrenata, Origanum syriacum subsp. Sinaicum, Phlomis aurea, Rosa arabica, Silene schimperiana) naturally growing Saint Katherine protectorate (SKP). Leaves collected from sites between 1600 2200 m above sea level assess the biochemical physiological variations response altitudes. soil pH micronutrient content decreased, which can be attributed lower mineralization processes pH. Total phenols, ascorbic acid, proline, flavonoids, tannins increased SMs progressively studied species, associated with significant decrease levels enzyme activity. R. most threatened plant, showed maximum compared other species. There was an increase photosynthetic pigments, attained via chlorophyll a, b, carotenoid contents. total soluble sugars protein SDS-PAGE leaf proteins alteration profile same grown altitude. These adapt high-altitude habitats by mechanisms, provide theoretical basis for future conservation SKP.

Language: Английский

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Advances in Chemical Priming to Enhance Abiotic Stress Tolerance in Plants

Plant and Cell Physiology, Journal Year: 2020, Volume and Issue: 61(12), P. 1995 - 2003

Published: Sept. 9, 2020

Abstract Abiotic stress is considered a major factor limiting crop yield and quality. The development of effective strategies that mitigate abiotic essential for sustainable agriculture food security, especially with continuing global population growth. Recent studies have demonstrated exogenous treatment plants chemical compounds can enhance tolerance by inducing molecular physiological defense mechanisms, process known as priming. Chemical priming believed to represent promising strategy mitigating in plants. Plants biosynthesize various compounds, such phytohormones other metabolites, adapt adverse environments. Research on artificially synthesized has also resulted the identification novel improve tolerance. In this review, we summarize current knowledge both naturally artificial agents been shown increase

Language: Английский

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Pure Organic Active Compounds Against Abiotic Stress: A Biostimulant Overview

Frontiers in Plant Science, Journal Year: 2020, Volume and Issue: 11

Published: Dec. 23, 2020

Biostimulants (BSs) are probably one of the most promising alternatives nowadays to cope with yield losses caused by plant stress, which intensified climate change. comprise many different compounds positive effects on plants, excluding pesticides and chemical fertilisers. Usually mixtures such as lixiviates from proteins or algal extracts have been used, but currently companies interested in more specific that capable increasing tolerance against abiotic stress. Individual application a pure active compound offers researchers opportunity better standarise formulations, learn about defence process itself assist agrochemical industry development new products. This review attempts summarise state art regarding various families organic their mode/mechanism action BSs, how they can help maximise agricultural yields under stress conditions aggravated

Language: Английский

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Biochar and jasmonic acid application attenuates antioxidative systems and improves growth, physiology, nutrient uptake and productivity of faba bean (Vicia faba L.) irrigated with saline water

Plant Physiology and Biochemistry, Journal Year: 2021, Volume and Issue: 166, P. 807 - 817

Published: June 20, 2021

Language: Английский

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