Abstract
The primary walls of epidermal cells in Avena coleoptiles ranging in length from 2 to 40 mm. have been studied in the electron and polarizing microscopes and by the low-angle scattering of x-rays. The outer walls of these cells are composed of multiple layers of cellulose microfibrils oriented longitudinally; initially the number of layers is between 10 and 15 but this increases to about 25 in older tissue. Where epidermal cells touch, these multiple layers fuse gradually into a primary wall of the normal type between cells. In these radial walls, the microfibrils are oriented transversely. Possible mechanisms for the growth of the multilayered outer wall during cell elongation are discussed.
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Selected References
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- CHAYEN J. Pectinase technique for isolating plant cells. Nature. 1952 Dec 20;170(4338):1070–1072. doi: 10.1038/1701070a0. [DOI] [PubMed] [Google Scholar]
- Castle E. S. THE MODE OF GROWTH OF EPIDERMAL CELLS OF THE Avena Coleoptile. Proc Natl Acad Sci U S A. 1955 Apr 15;41(4):197–199. doi: 10.1073/pnas.41.4.197. [DOI] [PMC free article] [PubMed] [Google Scholar]
- FREY-WYSSLING A., STECHER H. Das Flächenwachstum der pflanzlichen Zellwände. Experientia. 1951 Nov;7(11):420–421. doi: 10.1007/BF02147530. [DOI] [PubMed] [Google Scholar]
- PALADE G. E. A study of fixation for electron microscopy. J Exp Med. 1952 Mar;95(3):285–298. doi: 10.1084/jem.95.3.285. [DOI] [PMC free article] [PubMed] [Google Scholar]
- STECHER H. Uber das Flächenwachstum der pflanzlichen Zellwände. Mikroskopie. 1952;7(1-2):30–36. [PubMed] [Google Scholar]