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- Title
Elimination of flowering and most cytological changes after selective long-day exposure of the shoot tip of Sinapis alba.
- Authors
Havelange, A.; Bernier, G.
- Abstract
Entire plants of Sinapis alba exposed to a single long day were induced to flower. However, if only the shoot tip was exposed to the long day, no flowering ensued. In the apical meristem of plants with only the shoot tip exposed to the long day, none of the ultrastructural changes normally observed in the meristem of induced plants were detected, except for a marked increase in the number of mitochondria per cell. We conclude that the great majority of ultrastructural changes normally occurring in the shoot meristem during floral transition are not direct effects of daylength on the tip but are caused by signal(s) generated in induced leaves.
- Subjects
PLANTS; ORGANELLES; PLANT shoots; MITOCHONDRIA; LEAVES; PLANT cell cycle; FLOWERS
- Publication
Physiologia Plantarum, 1991, Vol 81, Issue 3, p399
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1991.tb08749.x