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Co-uptake of atrazine and mercury by rice seedlings from water
Su, YH; Zhu, YG; Du, X
2005
Source PublicationPESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
Volume82Issue:3Pages:226-232
AbstractThe 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
KeywordAtrazine Mercury Rice Seedlings Uptake Contamination
DOI10.1016/j.pestbp.2005.03.002
WOS Research AreaBiochemistry & Molecular Biology ; Entomology ; Physiology
WOS IDWOS:000230049000006
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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