| Co-uptake of atrazine and mercury by rice seedlings from water | |
| Su, YH; Zhu, YG; Du, X | |
| 2005 | |
| Source Publication | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
 |
| Volume | 82Issue:3Pages:226-232 |
| Abstract | The uptake of atrazine (ATR) by rice seedlings (Oryza sativa L.) from nutrient solution was investigated in the presence and absence of Hg2+ over a period of 96h. Either ATR or Hg2+ was found phytotoxic to rice seedlings, as they inhibited the seedling growth. The seedlings showed about 50% biomass reduction when exposed to 1.0 mg/L Hg2+ alone in nutrient solution, and about 80% reduction when exposed to 12.Omg/L ATR alone. Observed ATR and Hg2+ levels (in mg/kg) in seedlings are not related to biomass changes. When either ATR or Hg2+ was applied, the concentrations in seedlings increased largely in proportion to those in nutrient solution. The presence of Hg2+ at 0.1 and 1.0 mg/L in solution caused a small-to- moderate decline in ATR uptake by the seedlings, the effect being largely independent of the ATR concentration in nutrient solution (at 6.0 and 12.0 mg/L). The presence of ATR (at 6.0 and 12.0 mg/L) in the nutrient solution led to small-to-moderate irregular changes in the Hg2+ concentrations in rice seedlings. The overall results showed that there was no significant interdependence between the uptakes of ATR and Hg2+ by rice seedlings, which is in contrast to the enhanced ATR uptake noticed earlier with Pb2+ ion. Plant uptake of non-ionic organic compounds, such as ATR may be partly through water channels on the plasma membranes of plant cells. (c) 2005 Elsevier Inc. All rights reserved. |
| Department | 土壤环境科学实验室 |
| Keyword | Atrazine Mercury Rice Seedlings Uptake Contamination |
| DOI | 10.1016/j.pestbp.2005.03.002 |
| WOS Research Area | Biochemistry & Molecular Biology ; Entomology ; Physiology |
| WOS ID | WOS:000230049000006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.rcees.ac.cn/handle/311016/23335 |
| Collection | 土壤环境科学实验室 |
| Recommended Citation GB/T 7714 | Su, YH,Zhu, YG,Du, X. Co-uptake of atrazine and mercury by rice seedlings from water[J]. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,2005,82(3):226-232. |
| APA | Su, YH,Zhu, YG,&Du, X.(2005).Co-uptake of atrazine and mercury by rice seedlings from water.PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,82(3),226-232. |
| MLA | Su, YH,et al."Co-uptake of atrazine and mercury by rice seedlings from water".PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 82.3(2005):226-232. |
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