Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress
In this study an experiment was carried out to study the process of stress adaptation in Groenlandia densa (opposite-leaved pondweed) grown under cadmium stress (0-20 mg L-1 Cd). The results showed that Cd concentrations in plants increased with increasing Cd supply levels and reached a maximum of 0...
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fterciyesuniv:0ba38433-9b79-4bd8-b5a9-3629cd146155 2023-05-15T16:31:34+02:00 Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress Parlak, Kadiriye Uruc Yilmaz, Dilek 2011-03-01T01:00:00Z https://doi.org/10.1016/j.ecolind.2010.06.012 https://avesis.erciyes.edu.tr/publication/details/0ba38433-9b79-4bd8-b5a9-3629cd146155/oai eng eng 0ba38433-9b79-4bd8-b5a9-3629cd146155 doi:10.1016/j.ecolind.2010.06.012 https://avesis.erciyes.edu.tr/publication/details/0ba38433-9b79-4bd8-b5a9-3629cd146155/oai info:eu-repo/semantics/closedAccess info:eu-repo/semantics/article 2011 fterciyesuniv https://doi.org/10.1016/j.ecolind.2010.06.012 2022-02-13T14:19:24Z In this study an experiment was carried out to study the process of stress adaptation in Groenlandia densa (opposite-leaved pondweed) grown under cadmium stress (0-20 mg L-1 Cd). The results showed that Cd concentrations in plants increased with increasing Cd supply levels and reached a maximum of 0.43 mg kg(-1) DW at 0.5 mg L-1 Cd concentrations. The level of photosynthetic pigments and soluble proteins decreased only upon exposure to high Cd concentrations. At the same time, the level of malondialdehyde (MDA) increased with increasing Cd concentration. These results suggested an alleviation of stress that was presumably the result of by antioxidants such as superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) and glutathione S-transferase (GST) as well as ascorbate peroxidase (APX), which increased linearly with increasing Cd levels. Cellular antioxidants levels showed a decline suggesting a defensive mechanism to protect against oxidative stress caused by Cd. In addition, the proline content in G. densa increased with increasing cadmium levels. These findings suggest that G. densa is equipped with an efficient antioxidant mechanism against Cd-induced oxidative stress which protects the plant's photosynthetic machinery from damage. Article in Journal/Newspaper Groenlandia Erciyes University Research Information System Ecological Indicators 11 2 417 423 |
institution |
Open Polar |
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Erciyes University Research Information System |
op_collection_id |
fterciyesuniv |
language |
English |
description |
In this study an experiment was carried out to study the process of stress adaptation in Groenlandia densa (opposite-leaved pondweed) grown under cadmium stress (0-20 mg L-1 Cd). The results showed that Cd concentrations in plants increased with increasing Cd supply levels and reached a maximum of 0.43 mg kg(-1) DW at 0.5 mg L-1 Cd concentrations. The level of photosynthetic pigments and soluble proteins decreased only upon exposure to high Cd concentrations. At the same time, the level of malondialdehyde (MDA) increased with increasing Cd concentration. These results suggested an alleviation of stress that was presumably the result of by antioxidants such as superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) and glutathione S-transferase (GST) as well as ascorbate peroxidase (APX), which increased linearly with increasing Cd levels. Cellular antioxidants levels showed a decline suggesting a defensive mechanism to protect against oxidative stress caused by Cd. In addition, the proline content in G. densa increased with increasing cadmium levels. These findings suggest that G. densa is equipped with an efficient antioxidant mechanism against Cd-induced oxidative stress which protects the plant's photosynthetic machinery from damage. |
format |
Article in Journal/Newspaper |
author |
Parlak, Kadiriye Uruc Yilmaz, Dilek |
spellingShingle |
Parlak, Kadiriye Uruc Yilmaz, Dilek Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress |
author_facet |
Parlak, Kadiriye Uruc Yilmaz, Dilek |
author_sort |
Parlak, Kadiriye Uruc |
title |
Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress |
title_short |
Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress |
title_full |
Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress |
title_fullStr |
Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress |
title_full_unstemmed |
Changes in proline accumulation and antioxidative enzyme activities in Groenlandia densa under cadmium stress |
title_sort |
changes in proline accumulation and antioxidative enzyme activities in groenlandia densa under cadmium stress |
publishDate |
2011 |
url |
https://doi.org/10.1016/j.ecolind.2010.06.012 https://avesis.erciyes.edu.tr/publication/details/0ba38433-9b79-4bd8-b5a9-3629cd146155/oai |
genre |
Groenlandia |
genre_facet |
Groenlandia |
op_relation |
0ba38433-9b79-4bd8-b5a9-3629cd146155 doi:10.1016/j.ecolind.2010.06.012 https://avesis.erciyes.edu.tr/publication/details/0ba38433-9b79-4bd8-b5a9-3629cd146155/oai |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.ecolind.2010.06.012 |
container_title |
Ecological Indicators |
container_volume |
11 |
container_issue |
2 |
container_start_page |
417 |
op_container_end_page |
423 |
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1766021324803670016 |