Involvement of ethylene in the regulation of growth and development of the fungus Botrytis cinerea Pers. ex. Fr. |
| |
Authors: | E K\cepczyńska |
| |
Institution: | (1) Department of Plant Physiology, University of Szczecin, Felczaka 3a, 71-412 Szczecin, Poland |
| |
Abstract: | Application of ethephon slightly increased the growth of hyphae of Botrytis cinerea. A competitive inhibitor of ethylene binding, 2,5-norbornadiene (NBD), inhibited growth of hyphae and mycelium and retarded the development of Botrytis cinerea. Transfer of the mycelium from an atmosphere containing NBD to air relieved the inhibition, indicating that the NBD effects were non-toxic and reversible. Addition of exogenous ethylene to an atmosphere containing NBD (20 ml 1-1) effectively reduced the inhibition. Inhibition due to 40 ml 1–1 NBD was not relieved by ethylene at any of the concentrations tested; however, a positive effect of ethylene appeared following transfer of the mycelia to air. The results suggest that ethylene may be required for the growth and development of Botrytis cinerea.Abbreviations NBD
2,5-norbornadiene
- ethephon
2-chloroethyl-phosphonic acid
- PDA
potato dextrose agar |
| |
Keywords: | Botrytis cinerea ethephon ethylene hyphal growth lesion development mycelial growth 2 5-norbornadiene |
本文献已被 SpringerLink 等数据库收录! |
|