BRAINCAKESynergy and Antagonism
Plant growth regulators rarely act alone. The response of a tissue usually depends on the balance of several regulators, which can interact in two ways.
Synergy
Two regulators act synergistically when their combined effect is greater than the sum of their separate effects.
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Key terms in this lesson
- plant growth regulator
- A chemical made in plant cells that alters growth or development, often at very low concentration and away from where it was made.
- apical dominance
- The inhibition of the growth of lateral buds by the auxin produced in the apical bud at the shoot tip.
More in Chemical Control
- Auxins
- How Auxins Work
- Gibberellins
- Cytokinins
- Apical Dominance
- Sensory Systems in Plants
- Phytochromes
- Photoperiodism
All 30 lessons in Chemical Control · All Edexcel A-level Biology topics