Independent effects of jasmonates and ethylene on inhibition of <Emphasis Type="Italic">Pharbitis nil</Emphasis> flowering |
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Authors: | Jacek Kęsy Emilia Wilmowicz Beata Maciejewska Kamil Frankowski Paulina Glazińska Jan Kopcewicz |
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Institution: | (1) Department of Physiology and Molecular Biology of Plants, Institute of General and Molecular Biology, Nicolaus Copernicus University, 9 Gagarina Street, 87-100 Torun, Poland; |
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Abstract: | Interactions between methyl jasmonate (JA-Me) and ethylene in the photoperiodic flower induction of short-day plant Pharbitis nil were investigated. Both JA-Me and gaseous ethylene applied during the inductive long night caused a decrease in the number
of flower buds generated by P. nil. Application of ethylene did not affected niether the level of endogenous jasmonates in the cotyledons during the 16 h long
inductive night, nor the inhibitory effect of JA-Me on the flowering of P. nil accompanied by variations in ethylene production. The application of acetylsalicylic acid (aspirin)—a jasmonate biosynthesis
inhibitor—slightly stimulated flowering. Our results have shown that the mechanisms of P. nil flower inhibition by jasmonates and ethylene are independent. |
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