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Science 21 November 1969:
Vol. 166. no. 3908, pp. 1015 - 1017
DOI: 10.1126/science.166.3908.1015
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Articles

Silica in Developing Epidermal Cells of Avena Internodes: Electron Microprobe Analysis

P. B. Kaufmian 1, W. C. Bigelow 1, L. B. Petering 1, and F. B. Drogosz 1

1 Department of Botany and Department of Chemical and Metallurgical Engineering, University of Michigan, Ann Arbor 48104

Silica is present in significant amount in mature guard and subsidiary cells of stomata, in trichomes and silica cells, and in the walls of long eidermal cells of Avena. No silica was detectable in cork cells of cork-silica cell pairs. Silica must be accumulated in these specialized epidermal cells quite rapidly.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)