Estruch JJ et al. 1993
- Authors:
Estruch JJ. Granell A. Hansen G. Prinsen E. Redig P. Van Onckelen H.
Schwarz-Sommer Z. Sommer H. Spena A.
- Title:
Floral development and expression of floral homeotic genes are influenced
by cytokinins.
- Reference location:
Plant Journal. 4(2):379-84, 1993 Aug.
- Abstract:
Tobacco plants that are somatic mosaics for the expression of a
cytokinin-synthesizing gene have viviparous leaves. Epiphyllous buds can
be either vegetative or floral. Floral adventitious buds can be either
normal or abnormal. Abnormalities of floral development correlate with:
(i) a local activation of the cytokinin-synthesizing gene, (ii) a drastic
increase in floral cytokinin content, and (iii) a decrease in the
steady-state levels of mRNA homologous of the homeotic genes DEFA, GLO and
PLENA of Antirrhinum majus. Thus, these data show in planta that
cytokinins, a class of phytohormones, are able to alter the development of
floral organs and to decrease the expression of three homeotic floral
genes.
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