BRAINCAKEGibberellins: Synergy and Antagonism.
Gibberellins also affect the length of the internodes by stimulating cell elongation. Auxins and gibberellins work synergistically in the growth of stems. ABA and gibberellins work antagonistically in the germination of seeds.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- auxin
- A plant growth hormone, produced at the tips of shoots and roots, that stimulates cell elongation, maintains apical dominance and controls tropisms.
- gibberellin
- A plant growth hormone that stimulates stem elongation, breaks seed dormancy and triggers the mobilisation of food stores during germination.
- abscisic acid
- A plant hormone that maintains dormancy and causes stomatal closure in response to water stress.
More in Plant Responses
- Plant Growth Responses
- Plant Hormones
- Seed Germination
- Apical Dominance
- Leaf Loss
- Flowering and Day-Length
- Preventing Freezing
- Stomatal Control
All 19 lessons in Plant Responses · All AQA A-level Biology topics