| Title: | Cyanamide mode of action during inhibition of onion (Allium cepa L.) root growth involves disturbances in cell division and cytoskeleton formation |
| Author(s): | Soltys D; Rudzinska-Langwald A; Kurek W; Gniazdowska A; Sliwinska E; Bogatek R; |
| Address: | "Department of Plant Physiology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland" |
| DOI: | 10.1007/s00425-011-1429-5 |
| ISSN/ISBN: | 1432-2048 (Electronic) 0032-0935 (Print) 0032-0935 (Linking) |
| Abstract: | "Cyanamide is an allelochemical produced by hairy vetch (Vicia villosa Roth.). Its phyotoxic effect on plant growth was examined on roots of onion (Allium cepa L.) bulbs. Water solution of cyanamide (2-10 mM) restricted growth of onion roots in a dose-dependent manner. Treatment of onion roots with cyanamide resulted in a decrease in root growth rate accompanied by a decrease in accumulation of fresh and dry weight. The inhibitory effect of cyanamide was reversed by its removal from the environment, but full recovery was observed only for tissue treated with this chemical at low concentration (2-6 mM). Cytological observations of root tip cells suggest that disturbances in cell division may explain the strong cyanamide allelopathic activity. Moreover, in cyanamide-treated onion the following changes were detected: reduction of mitotic cells, inhibition of proliferation of meristematic cells and cell cycle, and modifications of cytoskeleton arrangement" |
| Keywords: | Cell Cycle/drug effects Cell Division/drug effects Cell Proliferation/drug effects Cyanamide/*pharmacology Cytoskeleton/drug effects Meristem/growth & development Mitosis/drug effects Onions/*drug effects/growth & development Pheromones/*pharmacology Plan; |
| Notes: | "MedlineSoltys, Dorota Rudzinska-Langwald, Anna Kurek, Wojciech Gniazdowska, Agnieszka Sliwinska, Elwira Bogatek, Renata eng Research Support, Non-U.S. Gov't Germany 2011/05/17 Planta. 2011 Sep; 234(3):609-21. doi: 10.1007/s00425-011-1429-5. Epub 2011 May 15" |
