Silicon ameliorates cadmium (Cd) toxicity in pearl millet by inducing antioxidant defense system

Iwuala, Emmanuel; Olajide, Olubunmi; Abiodun, Isaika; Odjegba, Victor; Utoblo, Obaiya; Ajewole, Tolulope; Oluwajobi, Ayoola; Uzochukwu, Sylvia

doi:10.1016/j.heliyon.2024.e25514

Heliyon

2024

DOI: 10.1016/j.heliyon.2024.e25514

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Silicon ameliorates cadmium (Cd) toxicity in pearl millet by inducing antioxidant defense system

Emmanuel Iwuala,

Olubunmi Olajide,

Isaika Abiodun

et al.

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2024

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Cited by 3 publications

References 85 publications

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Silicon enhanced phytoextraction of Sedum alfredii Hance by improving growth, Cd tolerance, and remolding rhizospheric properties

Xu,

Shao,

Rao

et al. 2024

Plant Soil

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Silicon enhanced phytoextraction of Sedum alfredii Hance by improving growth, Cd tolerance, and remolding rhizospheric properties

Xu,

Shao,

Rao

et al. 2024

Plant Soil

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Exploration of the bio-availability and the risk thresholds of cadmium and arsenic in contaminated paddy soils

Guan,

Ji,

Liu

et al. 2024

Heliyon

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An Overview of the Mechanisms through Which Plants Regulate ROS Homeostasis under Cadmium Stress

Luo,

Wu,

et al. 2024

Antioxidants

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Cadmium (Cd2+) is a non-essential and highly toxic element to all organic life forms, including plants and humans. In response to Cd stress, plants have evolved multiple protective mechanisms, such as Cd2+ chelation, vesicle sequestration, the regulation of Cd2+ uptake, and enhanced antioxidant defenses. When Cd2+ accumulates in plants to a certain level, it triggers a burst of reactive oxygen species (ROS), leading to chlorosis, growth retardation, and potentially death. To counteract this, plants utilize a complex network of enzymatic and non-enzymatic antioxidant systems to manage ROS and protect cells from oxidative damage. This review systematically summarizes how various elements, including nitrogen, phosphorus, calcium, iron, and zinc, as well as phytohormones such as abscisic acid, auxin, brassinosteroids, and ethylene, and signaling molecules like nitric oxide, hydrogen peroxide, and hydrogen sulfide, regulate the antioxidant system under Cd stress. Furthermore, it explores the mechanisms by which exogenous regulators can enhance the antioxidant capacity and mitigate Cd toxicity.

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Silicon ameliorates cadmium (Cd) toxicity in pearl millet by inducing antioxidant defense system

Cited by 3 publications

References 85 publications

Silicon enhanced phytoextraction of Sedum alfredii Hance by improving growth, Cd tolerance, and remolding rhizospheric properties

Silicon enhanced phytoextraction of Sedum alfredii Hance by improving growth, Cd tolerance, and remolding rhizospheric properties

Exploration of the bio-availability and the risk thresholds of cadmium and arsenic in contaminated paddy soils

An Overview of the Mechanisms through Which Plants Regulate ROS Homeostasis under Cadmium Stress

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