کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2783840 | 1568217 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Oxidative damage and redox change in pea seeds treated with cadmium Oxidative damage and redox change in pea seeds treated with cadmium](/preview/png/2783840.png)
Pea seeds (Pisum sativum L.) were germinated by soaking in distilled water or 5 mM CdCl2 for 5 days. The relationships among Cd treatment, germination rate, embryonic axis growth, NAD(P)H levels and NAD(P)H oxidase activities in mitochondrial and peroxisomal fractions of cotyledons and embryonic axis were investigated. Heavy metal stress provoked a diminution in germination percent and embryonic axis growth, as compared to the control. A drastic disorder in reducing power was imposed after exposure to cadmium. Heavy metal caused a significant increase in the redox ratio of coenzymes. NADPH oxidase is considered to be oxidative stress-related enzymes. The NAD(P)H oxidase activities were strongly stimulated after Cd exposure. The changes in redox and oxidative properties are discussed in relation to the delay in seed germination and embryonic axis growth.
Journal: Comptes Rendus Biologies - Volume 333, Issues 11–12, November–December 2010, Pages 801–807