Arsenic contamination, speciation, toxicity and defense strategies in plants
| العنوان: | Arsenic contamination, speciation, toxicity and defense strategies in plants |
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| المؤلفون: | Sheo Mohan Prasad, Anuradha Patel, Rohit Kumar Mishra, Sanjesh Tiwari |
| المصدر: | Brazilian Journal of Botany. 44:1-10 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, Antioxidant, biology, medicine.medical_treatment, Glutathione reductase, Arsenate, chemistry.chemical_element, Plant Science, 010603 evolutionary biology, 01 natural sciences, Superoxide dismutase, Arsenic contamination of groundwater, chemistry.chemical_compound, chemistry, Catalase, Environmental chemistry, medicine, biology.protein, Arsenic, 010606 plant biology & botany, Arsenite |
| الوصف: | This review explains the transport, mobility, resistance and detoxification of toxic metalloid arsenic (As) in plants. Arsenic is ubiquitously present in Earth’s crust; however, numerous human interventions such as rapid industrialization use of As-based pesticides, insecticides and discharge of industrial wastes in water bodies leads to cumulative increase in As in the environment and has become a global challenge. Arsenic exists in different organic and inorganic forms, but inorganic forms such as pentavalent arsenate (AsV) and trivalent arsenite (AsIII) are more toxic and actively taken up by plants. Its toxicity is marked by generation of reactive oxygen species (ROS) that are capable of degrading various biomolecules of the cellular systems. To keep the ROS under the limit, plants have an array of enzymatic antioxidants such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR) and glutathione-S-transferase (GST); and non-enzymatic antioxidant like ascorbate, proline, and cysteine. Contrary to this, As-hyper-accumulator plants survive under high concentration of As through the strenuous action of Asv reduction into AsIII followed by the vacuolar compartmentalization of complex or inorganic As. Hence, this review focuses on the potential sources of As in the environment, its speciation and toxicity, and tolerance strategies in plants. |
| تدمد: | 1806-9959 0100-8404 |
| DOI: | 10.1007/s40415-020-00694-5 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::5030217fcfeec3187a38e666388aeba8 https://doi.org/10.1007/s40415-020-00694-5 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........5030217fcfeec3187a38e666388aeba8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18069959 01008404 |
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| DOI: | 10.1007/s40415-020-00694-5 |