Alterations in antioxidant enzyme activities and proline content in pea leaves under long-term drought stress
Yazarlar (6)
Dr. Öğr. Üyesi İlhami KARATAŞ
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Lokman ÖZTÜRK
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Atatürk Üniversitesi, Türkiye
Erciyes Üniversitesi, Türkiye
Akdeniz Üniversitesi, Türkiye
Çankırı Karatekin Üniversitesi, Türkiye
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Toxicology and Industrial Health |
| Dergi ISSN | 0748-2337 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q2 |
| Makale Dili | İngilizce |
| Basım Tarihi | 09-2014 |
| Cilt No | 30 |
| Sayı | 8 |
| Sayfalar | 693 / 700 |
| DOI Numarası | 10.1177/0748233712462471 |
| Makale Linki | http://dx.doi.org/10.1177/0748233712462471 |
| Özet |
| The effects of long-term drought stress on chlorophyll, proline, protein and hydrogen peroxide (H2O2) contents, malondialdehyde (MDA) in terms of lipid peroxidation and on the changes in the activities of antioxidant enzymes such as superoxide dismutase (SOD, EC 1.15.1.1), ascorbate peroxidase (APX, EC 1.11.1.11), catalase (CAT, EC 1.11.1.6) and peroxidase (POX; EC 1.11.1.7) in the leaves of pea (Pisum sativum L.) were studied in field conditions. Chlorophyll and protein contents in leaves decreased significantly with increased drought stress. The proline content increased markedly under water deficit. MDA amounts were elevated as a result of water shortage, whereas H2O2content changed slightly in pea leaves exposed to drought stress. Drought stress markedly enhanced the activities of SOD, CAT and POX but slightly changed the activity of APX. We conclude that in field conditions, long-term water shortage increased the susceptibility to drought in peas. © 2012, SAGE Publications. All rights reserved. |
| Anahtar Kelimeler |
| Antioxidant enzymes | H O 2 2 | malondialdehyde | pea | proline | water deficit |