In Arabidopsis, it is well-known that a pulse of full-spectrum light during the night (in an otherwiselong night) will induce flowering. This suggests that plants measure the length of night, and not thelength of day.Using what you know about the molecular genetics of the photoperiod pathway for the inductionof flowering in Arabidopsis, explain why this pulse of light at night is capable of inducing flowering.

The developmental response of the plant, especially the flowering phenomena in relation to the…

Answered: Using what you know about the molecular…

Using what you know about the molecular genetics of the photoperiod pathway for the induction of flowering in Arabidopsis, explain why this pulse of light at night is capable of inducing flowering.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter38: Plant Developmental Responses To External And Internal Signals

Section: Chapter Questions

Problem 11TYU

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Question

In Arabidopsis, it is well-known that a pulse of full-spectrum light during the night (in an otherwise
long night) will induce flowering. This suggests that plants measure the length of night, and not the
length of day.
Using what you know about the molecular genetics of the photoperiod pathway for the induction
of flowering in Arabidopsis, explain why this pulse of light at night is capable of inducing flowering.

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Arabidopsis - Photoperiodic molecular mechanism behind flowering

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