Ethylene and IAA interactions in the inhibition of photoperiodic flower induction of Pharbitis nil

被引：0
作者：
Jacek Kęsy
Beata Maciejewska
Magdalena Sowa
Magdalena Szumilak
Krzysztof Kawałowski
Maja Borzuchowska
Jan Kopcewicz
机构：
[1] Nicolaus Copernicus University,Department of Physiology and Molecular Biology of Plants, Institute of General and Molecular Biology
来源：
Plant Growth Regulation | 2008年 / 55卷
关键词：
Auxin; Ethylene; Flower induction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
It has been shown that both IAA and ethylene application inhibit flower induction in the short-day plant Pharbitis nil. However application of IAA has elevated ethylene production in this plant, as well. Strong enhancement of ethylene production is also correlated with the night-break effect, which completely inhibits flowering. In order to determine what the role of IAA and ethylene is in the photoperiodic flower induction in Pharbitis nil, we measured changes in their levels during inductive and non-inductive photoperiods, and the effects of ethylene biosynthesis and action inhibitors on inhibition of flowering by IAA. Our results have shown that the inhibitory effect of IAA on Pharbitis nil flowering is not physiological but is connected with its effect on ethylene biosynthesis.
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页码：43 / 50
页数：7
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