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 |