Effects of Root Excision on Swelling of Leaf Sheath Cells and on the Arrangement of Cortical Microtubules in Onion Seedlings
- 1 December 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant and Cell Physiology
- Vol. 25 (8) , 1521-1529
- https://doi.org/10.1093/oxfordjournals.pcp.a076865
Abstract
Unlike abundantly-leafed mature plants, 2- to 3-leafed young onion seedlings (Allium cepa L. cv. Senshu-Chuko) showed no swelling of leaf sheaths even when they were kept under long-day conditions. When their roots were excised, however, the seedlings showed sign of swelling. Before swelling became evident, changes in the arrangement of cortical microtubules occurred in leaf sheath cells. The microtubules, which were oriented transversely to the cell axis in unexcised seedlings, were oriented longitudinally or obliquely in excised seedlings. Such effects of root excision were observed only in seedlings grown under long-day conditions, but not under short-day conditions.This publication has 7 references indexed in Scilit:
- Effects of S-3307, an Inhibitor of Gibberellin Biosynthesis, on Swelling of Leaf Sheath Cells and on the Arrangement of Cortical Microtubules in Onion SeedlingsPlant and Cell Physiology, 1984
- Gibberellin stabilizes microtubules in onion leaf sheath cellsProtoplasma, 1984
- Changes in Microtubules in Onion Leaf Sheath Cells during Bulb DevelopmentPlant and Cell Physiology, 1983
- Effects of ethylene on the orientation of microtubules and cellulose microfibrils of pea epicotyl cells with polylamellate cell wallsProtoplasma, 1982
- The role of microtubules and cell-wall deposition in elongation of regenerating protoplasts of MougeotiaPlanta, 1979
- Mechanism for Plant Cellular MorphogenesisScience, 1962
- Studies in the Physiology of the Onion Plant: V. AN INVESTIGATION INTO THE GROWTH SUBSTANCE CONTENT OF BULBING ONIONSJournal of Experimental Botany, 1962