biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 27:373-381, 1985 | DOI: 10.1007/BF02879880

Organ correlations affecting flowering in relation to phytohormones

E. Miginiac1, B. Sotta1
1 Phytotron, C.N.R.S., Gif sur Yvette, France

The influence of different organs on flowering of photoperiod- or temperature-dependent plants and of neutral plants is described. Special attention is given to the influence of roots which generally inhibit flowering. High or low temperatures applied to the roots ofChenopodium polyspermum, a quantitative short day plant, induce flowering. Vernalizing treatment of roots ofCichorium intybus suppresses the inhibition of flowering arising from the tissues immediately underlying the terminal bud. Other plants such as coniferous trees can flower more intensively if the growth of their roots is reduced. After a short presentation of the very complex situation concerning the regulation of floweringvia the presently known hormones, the methodological limitations of our understanding of the precise hormone mechanism of flowering will be discussed. One example of an immunologica 1 approach to localize endogenous hormones inside tissues is given, using abscisic acid.

Published: July 1, 1985  Show citation

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Miginiac, E., & Sotta, B. (1985). Organ correlations affecting flowering in relation to phytohormones. Biologia plantarum, 27(4-5), 373-381. doi: 10.1007/BF02879880
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