biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 35:229, 1993 | DOI: 10.1007/BF02925945

Coleoptile removal-induced ethylene production in winter rye seedlings

G. Ievinsh1, V. Iljin1, O. Kreicbergs1
1 Laboratory of Plant Physiology, Institute of Biology, Latvian Academy of Sciences, Salaspils, Latvia

Coleoptile removal-induced ethylene production was investigated in light-grown winter rye seedlings. Removal of the coleoptile induced 1-aminocyclopropane-l-carboxylic acid (ACC) synthesis and ethylene production by primary leaves and caused an inhibition of elongation growth of the leaves. The activity of ethylene-forming enzyme (EFE) was associated with the increase in ethylene evolution. Both rise in ethylene and ACC production, as well as EFE activity were inhibited by cycloheximide. Wounding the tissue 40 min after the initial treatment resulted in the second increase in ethylene evolution. Derooting of the seedlings without coleoptile removal did not induce ethylene production. It is suggested that the coleoptile represents a barrier for wound-induced ethylene production from actively growing leaf tissue.

Received: March 27, 1992; Accepted: November 10, 1992; Published: June 1, 1993  Show citation

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Ievinsh, G., Iljin, V., & Kreicbergs, O. (1993). Coleoptile removal-induced ethylene production in winter rye seedlings. Biologia plantarum, 35(2), 229. doi: 10.1007/BF02925945
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