FLORAL DEVELOPMENT AND EXPRESSION OF FLORAL HOMEOTIC GENES ARE INFLUENCED BY CYTOKININS

被引:50
作者
ESTRUCH, JJ
GRANELL, A
HANSEN, G
PRINSEN, E
REDIG, P
VANONCKELEN, H
SCHWARZSOMMER, Z
SOMMER, H
SPENA, A
机构
[1] MAX PLANCK INST ZUCHTUNGSFORSCH, CARL VON LINNE WEG 10, W-5000 COLOGNE 30, GERMANY
[2] IATA, CSIC, E-46010 VALENCIA, SPAIN
[3] UIA, B-2610 ANTWERP, BELGIUM
关键词
D O I
10.1046/j.1365-313X.1993.04020379.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
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 homologues 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.
引用
收藏
页码:379 / 384
页数:6
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