کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4425579 | 1309108 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Excessive sulfur supply reduces cadmium accumulation in brown rice (Oryza sativa L.) Excessive sulfur supply reduces cadmium accumulation in brown rice (Oryza sativa L.)](/preview/png/4425579.png)
Human activities have resulted in cadmium (Cd) and sulfur (S) accumulation in paddy soils in parts of southern China. A combined soil–sand pot experiment was conducted to investigate the influence of excessive S supply on iron plaque formation and Cd accumulation in rice plants, using two Cd levels (0, 1.5 mg kg−1) combined with three S concentrations (0, 60, 120 mg kg−1). The results showed that excessive S supply significantly decreased Cd accumulation in brown rice due to the decrease of Cd availability and the increase of glutathione in rice leaves. But excessive S supply obviously increased Cd accumulation in roots due to the decrease of iron plaque formation on the root surface of rice. Therefore, excessive S supply may result in loss of rice yield, but it could effectively reduce Cd accumulation in brown rice exposed to Cd contaminated soils.
Journal: Environmental Pollution - Volume 158, Issue 2, February 2010, Pages 409–415