Which type of plant hormone has been shown to both promote pollen tube elongation and inhibit root elongation?

Name: Which type of plant hormone has been shown to both promote pollen tube elongation and inhibit root elongation?
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Question

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Brassinosteroids are a class of plant hormones known for their role in promoting various growth processes, including pollen tube elongation. They also have an inhibitory effect on root elongation, making them unique in their dual role in plant development.

Which Type of Plant Hormone Has Been Shown to Both