A scientist is investigating a hormone response in rose bush stems.The apical meristems of the main stems were removed to allow the lateral buds to develop.What hormone will induce the development of lateral buds once the apical meristems are removed?

Question

Quizplus · Accepted Answer

Cytokinin is known to promote lateral bud development and is often used in plant tissue culture to induce branching. Removal of the apical meristem removes the source of auxin, which inhibits lateral bud growth, allowing cytokinin to take over and stimulate branching. Gibberellin promotes stem elongation, abscisic acid is involved in stress response and ethylene promotes fruit ripening, but none of these hormones are directly involved in lateral bud development in the absence of apical dominance.

A Scientist Is Investigating a Hormone Response in Rose Bush