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Casparian strips in needles of Pinus bungeana: isolation and chemical characterization
Xiaoqin Wu1, Jinxing Lin, Jinmao Zhu
1Key Laboratory of Photosynthesis and Molecular Environmental Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Department of Biological Engineering, Fujian Teachers University, Fuzhou 350007, China Botanical Institute, Ecophysiology, University of Bonn, Kirschallee 1, 53115 Bonn, Germany.
Abstract:
By using cell wall degrading enzymes, Casparian strips were for the first time isolated from Pinus bungeana needle endodermis. They appeared as a fine network, similar to those isolated from roots. Fourier transform infrared spectroscopic analysis provided evidence that the Casparian strips were impregnated with lignin, suberin, cellulose and cell wall proteins.
