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Heavy metal-induced oxidative stress on seed germination and seedling development; a critical review

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dc.contributor.author Seneviratne, M.
dc.contributor.author Rajakaruna, N.
dc.contributor.author Rizwan, M.
dc.contributor.author Madawala, H.M.S.P.
dc.contributor.author Ok, Y.S.
dc.contributor.author Vithanage, M.
dc.date.accessioned 2017-12-15T09:05:15Z
dc.date.available 2017-12-15T09:05:15Z
dc.date.issued 2017-07-12
dc.identifier.citation Seneviratne, M., Rajakaruna, N., Rizwan, M., Madawala, H.M.S.P., Ok, Y.S., Vithanage, M. (2017). "Heavy metal-induced oxidative stress on seed germination and seedling development; a critical review", Environmental Geochemistry and Health, pp. 1-19 en_US, si_LK
dc.identifier.uri http://dr.lib.sjp.ac.lk/handle/123456789/6857
dc.description.abstract Attached en_US, si_LK
dc.description.abstract Heavy metal contamination in soils can influence plants and animals, often leading to toxicosis. Heavy metals can impact various biochemical processes in plants, including enzyme and antioxidant production, protein mobilization and photosynthesis. Hydrolyzing enzymes play a major role in seed germination. Enzymes such as acid phosphatases, proteases and a-amylases are known to facilitate both seed germination and seedling growth via mobilizing nutrients in the endosperm. In the presence of heavy metals, starch is immobilized and nutrient sources become limited. Moreover, a reduction in proteolytic enzyme activity and an increase in protein and amino acid content can be observed under heavy metal stress. Proline, is an amino acid which is essential for cellular metabolism. Numerous studies have shown an increase in proline content under oxidative stress in higher plants. Furthermore, heat shock protein production has also been observed under heavy metal stress. The chloroplast small heat shock proteins (Hsp) reduce photosynthesis damage, rather than repair or help to recover from heavy metal-induced damage. Heavy metals are destructive substances for photosynthesis. They are involved in destabilizing enzymes, oxidizing photosystem II (PS II) and disrupting the electron transport chain and mineral metabolism.
dc.language.iso en_US en_US, si_LK
dc.publisher Environmental Geochemistry and Health en_US, si_LK
dc.subject Antioxidant system en_US, si_LK
dc.subject Starch mobilization en_US, si_LK
dc.subject Proline en_US, si_LK
dc.subject Protein degradation en_US, si_LK
dc.subject Chlorophyll en_US, si_LK
dc.subject Heavy metal stress en_US, si_LK
dc.title Heavy metal-induced oxidative stress on seed germination and seedling development; a critical review en_US, si_LK
dc.type Article en_US, si_LK


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