Biochar improves the adaptability of<i>Vicia faba</i>L in cadmium contaminated soil

Helaoui, Sondes; Boughattas, Iteb; Mkhinini, Marouane; Kribi-Boukhris, Sameh El; Livet, Alexandre; Bousserhine, Noureddine; Bannı, Mohamed

doi:10.1080/15320383.2022.2105811

Cited by 5 publications

(1 citation statement)

References 102 publications

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“…This can be ascribed to the neutralization of pH, increased nutrient availability, as well as the immobilization of PTEs in the C + B-soil [ 42 , 43 ]. Our results agree with those of Helaoui et al [ 44 ], who showed that biochar improved the adaptability of vetch to Cd-contaminated soils, and Rees et al [ 45 ], which demonstrated that biochar was able to reduce the genotoxicity associated with the presence of Cd, Pb and Zn, thus promoting the growth of vetch in contaminated soils. The general improvement of soil quality favored by biochar appeared to be less effective on the growth of ryegrass alone ( Fig.…”

Section: Resultssupporting

confidence: 92%

Combining biochar and grass-legume mixture to improve the phytoremediation of soils contaminated with potentially toxic elements (PTEs)

Pinna,

Diquattro,

Garau

et al. 2024

Heliyon

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Section: Resultssupporting

confidence: 92%

Combining biochar and grass-legume mixture to improve the phytoremediation of soils contaminated with potentially toxic elements (PTEs)

Pinna,

Diquattro,

Garau

et al. 2024

Heliyon

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Biochar potentially enhances maize tolerance to arsenic toxicity by improving physiological and biochemical responses to excessive arsenate

Rahman,

Das,

Sultana

et al. 2023

Biochar

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Metalloid pollution, including arsenic poisoning, is a serious environmental issue, plaguing plant productivity and quality of life worldwide. Biochar, a carbon-rich material, has been known to alleviate the negative effects of environmental pollutants on plants. However, the specific role of biochar in mitigating arsenic stress in maize remains relatively unexplored. Here, we elucidated the functions of biochar in improving maize growth under the elevated level of sodium arsenate (Na2AsO4, AsV). Maize plants were grown in pot-soils amended with two doses of biochar (2.5% (B1) and 5.0% (B2) biochar Kg−1 of soil) for 5 days, followed by exposure to Na2AsO4 ('B1 + AsV'and 'B2 + AsV') for 9 days. Maize plants exposed to AsV only accumulated substantial amount of arsenic in both roots and leaves, triggering severe phytotoxic effects, including stunted growth, leaf-yellowing, chlorosis, reduced photosynthesis, and nutritional imbalance, when compared with control plants. Contrariwise, biochar addition improved the phenotype and growth of AsV-stressed maize plants by reducing root-to-leaf AsV translocation (by 46.56 and 57.46% in ‘B1 + AsV’ and ‘B2 + AsV’ plants), improving gas-exchange attributes, and elevating chlorophylls and mineral levels beyond AsV-stressed plants. Biochar pretreatment also substantially counteracted AsV-induced oxidative stress by lowering reactive oxygen species accumulation, lipoxygenase activity, malondialdehyde level, and electrolyte leakage. Less oxidative stress in ‘B1 + AsV’ and ‘B2 + AsV’ plants likely supported by a strong antioxidant system powered by biochar-mediated increased activities of superoxide dismutase (by 25.12 and 46.55%), catalase (51.78 and 82.82%), and glutathione S-transferase (61.48 and 153.83%), and improved flavonoid levels (41.48 and 75.37%, respectively). Furthermore, increased levels of soluble sugars and free amino acids also correlated with improved leaf relative water content, suggesting a better osmotic acclimatization mechanism in biochar-pretreated AsV-exposed plants. Overall, our findings provided mechanistic insight into how biochar facilitates maize’s active recovery from AsV-stress, implying that biochar application may be a viable technique for mitigating negative effects of arsenic in maize, and perhaps, in other important cereal crops. Graphical Abstract

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Enhancing soil health to minimize cadmium accumulation in agro-products: the role of microorganisms, organic matter, and nutrients

Xin

2024

Environmental Pollution

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Biochar improves the adaptability ofVicia fabaL in cadmium contaminated soil

Cited by 5 publications

References 102 publications

Combining biochar and grass-legume mixture to improve the phytoremediation of soils contaminated with potentially toxic elements (PTEs)

Combining biochar and grass-legume mixture to improve the phytoremediation of soils contaminated with potentially toxic elements (PTEs)

Biochar potentially enhances maize tolerance to arsenic toxicity by improving physiological and biochemical responses to excessive arsenate

Enhancing soil health to minimize cadmium accumulation in agro-products: the role of microorganisms, organic matter, and nutrients

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