Fullerene-Induced Increase of Glycosyl Residue on Living Plant Cell Wall

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• 作者：Qiaoling Liu ; Xuejie Zhang ; Yuanyuan Zhao ; Jinxing Lin ; Chunying Shu ; Chunru Wang ; Xiaohong Fang
• 刊名：Environmental Science & Technology (ES&T)
• 出版年：2013
• 出版时间：July 2, 2013
• 年：2013
• 卷：47
• 期：13
• 页码：7490-7498
• 全文大小：372K
• 年卷期：v.47,no.13(July 2, 2013)
• ISSN：1520-5851

文摘

In this work, we have investigated the change of cell wall for the tobacco plant cell (Nicotiana tobacum L. cv. Bright Yellow) under the repression of water-soluble carboxyfullerenes (C₇₀(C(COOH)₂)_2鈥?). The adsorption of C₇₀(C(COOH)₂)_2鈥? on cell wall led to the disruption of cell wall and membrane, and consequently, cell growth inhibition. Results from atomic force microscopy (AFM) force measurement and confocal imaging revealed an increase of the glycosyl residue on the cell wall of carboxyfullerene-treated cells, with a time- and dose-dependent manner, and accompanied by the elevated reactive oxygen species (ROS). Moreover, the stimulation-sensitive alteration of glycosyl residue and ROS was demonstrated, which suggested a possible protection strategy for the plant cells under fullerene repression. This study provides the first direct evidence on the change of plant cell wall composition under the repression of fullerene and is the first successful application of AFM ligand-receptor binding force measurement to the living plant cell. The new information present here would help to a better understanding and assessment of the biological effect of fullerenes on plant.