Cd Subcellular Localization in Root Tips of Hordeum vulgare
Qiuyue Shi1, Junran Wang1, Jinhua Zou1, Ze Jiang2, Jiayue Wang1, Hangfeng Wu1, Wusheng Jiang1, Donghua Liu1
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1Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University,
Tianjin 300387, China
2Tianjin Experimental High School, Tianjin 300074, China
Submission date: 2015-11-19
Final revision date: 2015-12-22
Acceptance date: 2015-12-23
Publication date: 2016-03-17
Pol. J. Environ. Stud. 2016;25(2):903-908
The effects of Cd on the subcellular localization in root tip cells of Hordeum vulgare were investigated by Energy dispersive x-ray analysis (EDXA) in order to further understand Cd toxic mechanisms in plants. EDXA showed that Cd ions were localized in meristem, elongation, and mature zone in the root tips. In transverse section of the mature zone, Cd was accumulated in epidermal, cortical, and vessel cells, and the level of Cd is in the order: epidermal cells < vessel cells < cortical cells. In cortical cells Cd ions were observed in cytoplasm and walls.
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