Effects of di-n-butyl phthalate on the physiology and ultrastructure of cucumber seedling roots
Zhang, Y; Tao, Y; Sun, G; Wang, L
HERO ID
2510821
Reference Type
Journal Article
Year
2014
Language
English
PMID
| HERO ID | 2510821 |
|---|---|
| In Press | No |
| Year | 2014 |
| Title | Effects of di-n-butyl phthalate on the physiology and ultrastructure of cucumber seedling roots |
| Authors | Zhang, Y; Tao, Y; Sun, G; Wang, L |
| Journal | Environmental Science and Pollution Research |
| Volume | 21 |
| Issue | 10 |
| Page Numbers | 6662-6670 |
| Abstract | Agricultural pollution caused by the use of plastic sheetings has been documented to be a widespread problem in most of the major crop-planting regions of the world. In order to better understand the phytotoxic mechanisms induced by phthalic acid esters involved with this problem, Cucumber sativus L. cv Jinyan No. 4 were sown in pots to the three-leaf-stage in the presence of di-n-butyl phthalate (DBP; 0, 30, 50, 100, and 200 mg L(-1)) for 1, 3, 5, or 7 days. Physiology, biochemistry, and ultrastructure of seedling roots were examined. The results indicated that activities of three antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD)) were stimulated at low-DBP treatments and decreased under higher levels (>100 mg L(-1)) compared to the controls. On the other hand, SOD and POD provided a better defense against DBP-induced oxidative damage in the roots of cucumber seeding, compared to CAT. The productions of both malondialdehyde (MDA) and proline (Pro) were promoted under DBP stress. Visible impact on the cytoderm, mitochondrion, and vacuole was detected, possibly as a consequence of free radical generation. These results suggested that activation of the antioxidant system by DBP led to the formation of reactive oxygen species that resulted in cellular damage. |
| Doi | 10.1007/s11356-014-2580-x |
| Pmid | 24573460 |
| Wosid | WOS:000336314900038 |
| Url | https://search.proquest.com/docview/1788592608?accountid=171501 |
| Is Certified Translation | No |
| Dupe Override | No |
| Conference Location | Arcachon, FRANCE |
| Conference Name | 7th International PCB Workshop - Chemical mixtures in a complex world |
| Is Public | Yes |
| Language Text | English |
| Keyword | DBP; Antioxidant enzymes; Cucumber; Ultrastructure |