CHARACTERIZATION OF CADMIUM UPTAKE BY ROOTS OF DURUM WHEAT PLANTS

被引：0
|
作者：
Lyubka, Koleva [1 ]
Donka, Staneva [2 ]
Ivanka, Yordanova [2 ]
Tsvetanka, Bineva [2 ]
Andon, Vassilev [1 ]
机构：
[1] Agr Univ Plovdiv, Dept Plant Physiol & Biochem, 12 Mendeleev St, Plovdiv 4000, Bulgaria
[2] Inst Soil Sci & Ecol, Radioisotope Lab, Sofia, Bulgaria
来源：
JOURNAL OF CENTRAL EUROPEAN AGRICULTURE | 2008年 / 9卷 / 03期
关键词：
cadmium; Cd-109; durum wheat; uptake;
D O I：
暂无
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
Root Cd uptake of durum wheat plants (cv. Beloslava) was characterized in hydroponics conditions. The uptake experiments have been performed in Cd concentration range of 0 - 2 mu M adjusted by both stable Cd and radiolabeled (Cd-109) tracer. Cd removal from the solution over duration of 1 hour reached 50%. The part of loosely adsorbed Cd ions on root surface accounted for about 20%. Over 30% of absorbed Cd at 0.5 mu M Cd treatment was retained in root cell walls. The apparent root Cd accumulation showed concentration-dependant tendency with the highest accumulation value of 7.45 nmol Cd g FW-1.
引用
收藏
页码：533 / 537
页数：5
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