Effects of Gibberellins on Flowering in Grasses
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document in english
biology
summaries
date published 02/08/2007
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SummaryFor years, man has been trying to find a single chemical that triggers flowering in plants. Although this single chemical has not been found, several of the Gibberellins show promising results as an active florigen – such as GA5 and GA6 and possibly GA1 and GA4. Results have shown that these GAs seem to travel intact from the leaf to the shoot apex just after a single long day photoperiod. Gibberellins also seem to accumulate in sufficient amounts to trigger flowering. Gibberellins have also been shown to cause petiole elongation. Much research still needs to be done to draw definite conclusions about the role of Gibberellins as a florigen, but much of the evidence looks promising.
Table of Contents
- Abstract:
- Introduction:
- Results
- King and Evans describe the advancement in proving that Gibberellins can replace the Long Day (LD) photoperiod in flowering plants
- Certain Gibberellins seem to have a greater effect on flowering than others
- The first visible change in the GAs level in plants is in the leaf soon after a long day photoperiod
- Conclusion:
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