Lead exposure dose-dependently affects oxidative stress, AsA-GSH, photosynthesis, and mineral content in pakchoi (Brassica chinensis L.)

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: Oct. 6, 2022

Lead (Pb) is a heavy metal pollutant and negatively affects agriculture ecosystems. Pb can cause oxidative stress abnormal plant growth. The ascorbic acid-glutathione (AsA-GSH) cycle mainly exists in chloroplasts resists stress, scavenges reactive oxygen radicals, maintains normal photosynthesis. However, the dosage related effects of on pakchoi photosynthesis, via AsA-GSH system, remains unclear. In this study, various models were tested (low: 300 mg/kg; medium: 600 high: 900 mg/kg). induced dose-dependent increase content leaves (P < 0.05). Principal component analysis showed that Se, B, significantly correlated. also increased MDA decreased antioxidant enzymes SOD, GSH-Px, T-AOC activities We found Vc content, as well GSH/GSSG ratio, decreased. Additionally, destroyed chloroplast structure, photosynthesis indicators Pn, Tr, Gs, Ci VPD, attenuated Fv/Fm Fv/Fo high-dose group, contents chlorophyll a, b, carotenoids significantly, while expression development genes (GLK, GLN2) Our data suggest leads to dosage-dependent, aberrant by inhibiting system pakchoi. This study expands toxicology research field provides indications for screening antagonists.

Language: Английский

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Biochar Amendment Alleviates the Combined Effects of Salinity and Drought Stress on Water Productivity, Yield and Quality Traits of Sugar Beet (Beta vulgaris L.)

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(2), P. 2091 - 2110

Published: April 18, 2024

Abstract Salinity and drought are two commonly occurring major threats to agricultural yields worldwide, including sugar beet production. Therefore, this work aimed determine the effectiveness of biochar amendment in improving soil health alleviating combined effects induced by salinity on morphological, physiological biochemical responses plants. Two field studies were established at experimental farm Fayoum University, Egypt over successive winter seasons (2019/2020 2020/2021). The experiments carried out a split-split plot design with triplicate three factors: 1) salinity, levels ECe (< 4 dS m −1 as control 10 ) main-plot factor; 2) deficit irrigation regimes (I 100 , I 80 60 representing 100%, 80%, 60% crop evapotranspiration (ETc), respectively sub-plot 3) application (B 0 control, B 20 corresponding 0, 10, t ha sub-sub factor. Drought stress significant reduction growth attributes, relative water content, membrane stability, chlorophyll content (SPAD), yield components Meanwhile, contents sucrose, proline, Na, K, α amino-N substantially increased increasing severity. improved physical chemical properties, resulting better saline-drought stressed Biochar level produced highest values root (95.02 (20.24 for full irrigated plants non-saline soil. Moreover, enhanced productivity saline could be effectively used helpful agro-management strategy detrimental impacts plants, quality enhancing ensure sustainability food security, especially areas limited supply.

Language: Английский

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Sulfate supplementation affects nutrient and photosynthetic status of Arabidopsis thaliana and Nicotiana tabacum differently under prolonged exposure to cadmium

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 445, P. 130527 - 130527

Published: Nov. 30, 2022

Hydroponic experiments were performed to examine the effect of prolonged sulfate limitation combined with cadmium (Cd) exposure in Arabidopsis thaliana and a potential Cd hyperaccumulator, Nicotiana tabacum. Low treatments (20 40 µM MgSO4) stress (4 CdCl2) showed adverse effects on morphology, photosynthetic biochemical parameters nutritional status both species. For example, decreased NO3- root content under 20 MgSO4 approximately 50% compared respective controls. Interestingly, changes many measured parameters, such as chlorophyll carotenoid contents, concentrations anions, nutrients Cd, induced by low supply, or combination factors, species-specific. Our data opposing Ca, Fe, Mn, Cu Zn levels roots studied plants. In A. thaliana, glutathione, phytochelatins glucosinolates demonstrated their distinct involvement response sub-optimal growth conditions stress. shoot, organic sulfur fraction not dependent supply Altogether, our common species-specific features complex plant deprivation and/or exposure.

Language: Английский

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Effect of Natural Phytohormones on Growth, Nutritional Status, and Yield of Mung Bean (Vigna radiata L.) and N Availability in Sandy-Loam Soil of Sub-Tropics

Soil Systems, Journal Year: 2023, Volume and Issue: 7(2), P. 34 - 34

Published: April 10, 2023

Climate changes and poor soil nutrient profiles in sub-tropics are determinant factors to estimate crop productivity. This study aims evaluate the impact of phytohormones, e.g., indole acetic acid (IAA) gibberellic (GA3), on mung bean yield, seed nutritional profile, N availability sub-tropical region Pakistan. The plants were treated with three levels (0, 30, 60 mg L−1) IAA GA3 individually and/or combination using a hydraulic sprayer. amendments applied flowering stage (approximately 25 days after germination) randomized complete block design. results revealed that L−1 concentration led significant growth yield traits compared non-treated plants. For example, positively influenced biological (35.0%), total carbohydrate (7.0%), protein (16.0%), nitrogen (14.0%) contents seeds, control (CK). Additionally, combined foliar treatment (IAA2 + GA2) displayed much stronger influence attributes, such as number pods by 66.0%, pods’ weights 142.0%, 106.5%, CK. Mung showed improvement leaf photosynthetic pigments under higher level (60 sole treatments GA3. Moreover, except abscisic acid, endogenous IAA, GA3, zeatin was enhanced 193.0%, 67.0%, 175.0% application CK treatment. In addition, increased 72.8% IAA2 61.5% GA2, respectively, plot. It concluded followed at most effective improve morpho-physiology profile beans; however, underlying molecular mechanisms need be explored further.

Language: Английский

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Exogenous Application of Moringa Leaf Extract Confers Salinity Tolerance in Sunflower by Concerted Regulation of Antioxidants and Secondary Metabolites

Journal of soil science and plant nutrition, Journal Year: 2023, Volume and Issue: 23(3), P. 3806 - 3822

Published: June 9, 2023

Language: Английский

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Physiology and transcriptome analysis of Artemisia argyi adaptation and accumulation to soil cadmium

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 278, P. 116397 - 116397

Published: May 6, 2024

The soil pollution caused by cadmium (Cd) poses a significant threat to the environment. Therefore, identifying plants that can effectively remediate Cd-contaminated soils is urgently needed. In this study, physiological, cytological, and transcriptome analyses were performed comprehensively understand changes in Artemisia argyi under Cd stress. Physiological cytological indicated A. maintained normal growth with intact cell structure stress levels up 10 mg/kg. Cytological analysis showed precipitation leaf cells occurred cytoplasm intercellular spaces. As of increased, proline accumulation leaves whereas soluble protein sugar initially followed subsequent decline. translocation factor was above 1 0.6 mg/kg but decreased when it exceeded concentration. Transcriptome revealed several crucial Cd-influenced pathways, including amino acid, terpenoid, flavonoid, metabolisms. This study not only proved could enrich also response its resistance mechanisms, which provided insight into cleaner production remediation soil.

Language: Английский

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Cistus monspeliensis extract as a prospective biostimulant in enhancing tolerance to cadmium in sorghum plant

Biomass Conversion and Biorefinery, Journal Year: 2022, Volume and Issue: 14(21), P. 27445 - 27459

Published: Nov. 23, 2022

Language: Английский

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Exploring the morpho-physiological responses of maize to nickel stress modulated by salicylic acid

Cereal Research Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 24, 2024

Language: Английский

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Role of organic amendments in improving the morphophysiology and soil quality of Setaria italica under salinity

Heliyon, Journal Year: 2024, Volume and Issue: 10(19), P. e38159 - e38159

Published: Sept. 19, 2024

Language: Английский

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Enhancing Wheat Tolerance to Cadmium Stress through Moringa Leaf Extract Foliar Application

Scientifica, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Cadmium, a hazardous heavy metal prevalent in plants and soil, poses significant threat to human health, particularly as approximately 60% of the global population consumes wheat, which can accumulate high levels Cd through its roots. This uptake leads translocation shoots grains, exacerbating potential health risks. However, promising results have been observed with use moringa leaf extract (MLE) foliar spray mitigating adverse effects stress. The current experiment was conducted find out stress tolerance wheat varieties V1 = Akbar‐19 V2 Dilkash‐2020 under exogenous MLE. treatments this study were T 0 0% MLE + µ M Cd, 1 3% 2 400 3 Cd. demonstrated reduction morphological attributes shoot root fresh weight (22%), dry (24.5%), length (22.5%), area number leaves 30.5%, photosynthetic (69.8%) comparison control. Exposure toxicity cause oxidative stress, increased H O , MDA up 75% while application reduced activities reactive oxygen species (ROS). activity catalase (CAT), superoxide dismutase (SOD), peroxidase (POD), ascorbic acid (AsA) 81.5% well organic osmolytes such phenolics, total soluble proteins, sugars improved 77% by applications Higher accumulation ionic contents Na (22%) (44%) documented compared control, mineral ions Ca 2+ K 35% more MLE‐treated plants. In crux, significantly declined growth, photosynthetic, biochemical parameters found effective alleviating improving growth physiological declining wheat.

Language: Английский

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