Abstract.
Seedlings of Nicotiana tabacum L. (cv. Petit Havana SR1) were grown in the presence or absence of ultraviolet-B (UV-B, 290–320 nm) irradiation. The evolution of ethylene from the leaves, the content of 1-aminocyclopropane-1-carboxylic acid (ACC), an endogenous precursor of ethylene, and the activity of ACC synthase, a rate-limiting step in the production of ethylene, were increased by UV-B irradiation. The time course of these increases was parallel with the emergence of damage that was estimated by measuring the chlorophyll (Chl) content and the leakage of ions from leaf cells. Treatment of leaves with aminoethoxy-vinyl-glycine (AVG), a specific inhibitor of ACC synthase, reduced the extent of damage caused by UV-B. These results suggest that ethylene acts on certain processes to cause damage in tobacco leaves irradiated with UV-B.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Electronic Publication
Rights and permissions
About this article
Cite this article
Nara, A., Takeuchi, Y. Ethylene evolution from tobacco leaves irradiated with UV-B. J Plant Res 115, 247–253 (2002). https://doi.org/10.1007/s10265-002-0031-0
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s10265-002-0031-0