Heavy Metal Contamination in Agricultural Soil: Environmental Pollutants Affecting Crop Health

Agronomy, Год журнала: 2023, Номер 13(6), С. 1521 - 1521

Опубликована: Май 31, 2023

Heavy metals and metalloids (HMs) are environmental pollutants, most notably cadmium, lead, arsenic, mercury, chromium. When HMs accumulate to toxic levels in agricultural soils, these non-biodegradable elements adversely affect crop health productivity. The toxicity of on crops depends upon factors including type, growth condition, developmental stage; nature the specific involved; soil physical chemical properties; occurrence bioavailability HM ions solution; rhizosphere chemistry. can disrupt normal structure function cellular components impede various metabolic processes. This review evaluates: (1) contamination arable lands through practices, particularly due fertilizers, pesticides, livestock manures compost, sewage-sludge-based biosolids, irrigation; (2) affecting solution, their absorption, translocation, bioaccumulation plants; (3) mechanisms by which directly interfere with physiological, biochemical, molecular processes plants, particular emphasis generation oxidative stress, inhibition photosynthetic phosphorylation, enzyme/protein inactivation, genetic modifications, hormonal deregulation, indirectly microbial growth, proliferation, diversity; (4) visual symptoms highly non-essential an plants. Finally, suggestions recommendations made minimize losses from suspected soils.

Язык: Английский

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Heavy Metal Contamination in Agricultural Soil: Environmental Pollutants Affecting Crop Health

Опубликована: Май 6, 2023

Heavy metals and metalloids (HMs) are environmental pollutants, most notably cadmium, lead, arsenic, mercury, chromium. When HMs accumulate to toxic levels in agricultural soils, these non-biodegradable elements adversely affect crop health productivity. The toxicity of on crops depends upon factors including type, growth condition, developmental stage; nature the specific involved; soil physical chemical properties; occurrence bioavailability HM ions solution; rhizosphere chemistry. can disrupt normal structure function cellular components impede various metabolic processes. This review evaluates: (1) contamination arable lands through practices, particularly due fertilizers, pesticides, livestock manures compost, sewage-sludge based biosolids, irrigation; (2) affecting solution, their absorption, translocation, bioaccumulation plants; (3) mechanisms by which directly interfere with physiological, biochemical, molecular processes plants particular emphasis generation oxidative stress, inhibition photosynthetic phosphorylation, enzyme/protein inactivation, genetic modifications, hormonal deregulation, indirectly microbial growth, proliferation, diversity; (4) visual symptoms highly non-essential an plants. Finally, suggestions recommendations made minimize losses from suspected soils.

Язык: Английский

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Integrating biochar and bacteria for sustainable remediation of metal-contaminated soils

Biochar, Год журнала: 2023, Номер 5(1)

Опубликована: Окт. 5, 2023

Abstract Due to anthropogenic activities, heavy metal (HM) pollution in soils has increased, resulting severe ecological problems and posing a constant threat human health. Among various remediation methods, bacterial is relatively clean, efficient, minimally negative approach. However, agents face multiple environmental stresses, making them challenging achieve long-lasting stable restoration effects. To address this issue, supportive organic substances such as biochar can be added the soil with bacteria. According bibliometric studies, integrating bacteria extensively researched widely used for HM-contaminated remediation. By bacteria, metals remediated, conditions improved over time. Bacteria also better promote plant growth or contribute effectively phytoremediation processes when assisted by biochar. are still some distance away from large-scale use because of their high cost possible problems. Therefore, further discussion on interaction between integration approach, along efficiency friendliness, needed sustainable This paper discusses potential mechanisms biochar-bacteria-metal interactions, current advancements biochar-bacteria combinations treatment, application remediation, analyzes compares effect different ways feedstocks integrate Finally, future directions presented, evidence strategies improving commercialization implementation. Graphical

Язык: Английский

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Synergistic interactions of nanoparticles and plant growth promoting rhizobacteria enhancing soil-plant systems: a multigenerational perspective

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Апрель 29, 2024

Sustainable food security and safety are major concerns on a global scale, especially in developed nations. Adverse agroclimatic conditions affect the largest agricultural-producing areas, which reduces production of crops. Achieving sustainable is challenging because several factors, such as soil flooding/waterlogging, ultraviolet (UV) rays, acidic/sodic soil, hazardous ions, low high temperatures, nutritional imbalances. Plant growth-promoting rhizobacteria (PGPR) widely employed in-vitro they recognized more environmentally sustainably friendly approach to increasing crop yield contaminated fertile soil. Conversely, use nanoparticles (NPs) an amendment has recently been proposed economical way enhance texture improving agricultural yields. Nowadays, various research experiments have combined or individually applied with PGPR NPs for balancing elements response control adverse situations, expectation that both additives might perform well together. According findings, interactive applications significantly increase yields than alone. The present review summarized functional mechanistic basis role NPs. However, this article focused potential direction realize possible interaction at large scale upcoming years.

Язык: Английский

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Root-associated functional microbiome endemism facilitates heavy metal resilience and nutrient poor adaptation in native plants under serpentine driven edaphic challenges

Journal of Environmental Management, Год журнала: 2025, Номер 373, С. 123826 - 123826

Опубликована: Янв. 1, 2025

Язык: Английский

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Comprehensive approaches to heavy metal bioremediation: Integrating microbial insights and genetic innovations

Journal of Environmental Management, Год журнала: 2025, Номер 374, С. 123969 - 123969

Опубликована: Янв. 8, 2025

Язык: Английский

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Screening of Azotobacter, Bacillus and Pseudomonas Species as Plant Growth-Promoting Bacteria

Processes, Год журнала: 2022, Номер 11(1), С. 80 - 80

Опубликована: Дек. 28, 2022

In this study, bacteria from the genus of Azotobacter, Bacillus and Pseudomonas were isolated roots Phaseolus vulgaris used as plant growth-promoting for Sinapis alba L., Brassica napus Amaranthus retroflexus Linum usitatissimum Panicum miliaceum L. Rumex patientia plants. The results showed that all three had different effects on plants growth considering both sterile non-sterile soil. sp. induced greatest influence in terms root length grown soil (with 28%), while soil, increased shoot by 11.43% 25.15%, respectively, compared to blank sample. Azotobacter exerted highest beneficial since lengths stimulated with 27.64% 52.60%, uninoculated a positive effect 30.30% 3.69% control). 35.29% also 20.51% control. Further, shoots presence 178.38% 15.08%, flax Statistically, according Tukey’s Honestly Significant Difference (HSD) test results, not observed differences selected are significantly

Язык: Английский

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Plant–Microbe Interactions under the Action of Heavy Metals and under the Conditions of Flooding

Diversity, Год журнала: 2023, Номер 15(2), С. 175 - 175

Опубликована: Янв. 26, 2023

Heavy metals and flooding are among the primary environmental factors affecting plants microorganisms. This review separately considers impact of heavy metal contamination soils on microorganisms plants, plant microbial biodiversity, plant–microorganism interactions. The use beneficial is considered one most promising methods increasing stress tolerance since plant-associated microbes reduce accumulation, so focuses interactions their practical application in phytoremediation. as an adverse factor outlined. It has been shown that bacteria under conditions primarily suffer from a lack oxygen activation anaerobic microflora. combined effects also discussed. In conclusion, we summarize plants.

Язык: Английский

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Effect of halophyte-based management in physiological and biochemical responses of tomato plants under moderately saline greenhouse conditions

Plant Physiology and Biochemistry, Год журнала: 2023, Номер 206, С. 108228 - 108228

Опубликована: Ноя. 28, 2023

Salinity, both in irrigation water and soils, is one of the major abiotic constraints for agriculture activity worldwide. Phytodesalinization a low-cost plant-based bioremediation strategy that can effectively amend salt-affected soils by cultivating salt tolerant plants. However, very few studies have evaluated use halophyte plants crop management systems. In this work, we apply two different tomato strategies involving Arthrocaulon macrostachyum L. moderately saline soil: intercropping (mixed cultivation) sequential cropping (cultivation where halophytes were previously grown). We investigated effect managements some physiological biochemical variables plants, including mineral nutrients content, photosynthesis, chlorophyll flavonol contents, antioxidant metabolism fruit production quality. At soil level, decreased chloride sodium adsorption ratio electrical conductivity, leading to reduced salinity. halophyte-dependent improved nutrient homeostasis triggered mild oxidative stress, whereas photosynthesis performance was enhanced intercropping. fruits, led 27% increase slight decrease soluble sugar contents. suggest A. macrostachyum, hence as an environmentally friendly phytoremediation improve plant while improving production, more sustainable enhancing biodiversity.

Язык: Английский

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Physiological responses of low- and high-cadmium accumulating Robinia pseudoacacia-rhizobium symbioses to cadmium stress

Environmental Pollution, Год журнала: 2024, Номер 345, С. 123456 - 123456

Опубликована: Янв. 31, 2024

Язык: Английский

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