A hypothetical 'florigen' could be produced p | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Long-day plants $(LDP)$ require a critical day length to flower. The flowering response is mediated by the phytochrome system. In $LDP$,the active

Vedclass · Accepted Answer

Red light during the night

Vedclass · Answer

(B) Long-day plants $(LDP)$ require a critical day length to flower. The flowering response is mediated by the phytochrome system. In $LDP$,the active form of phytochrome,$P_{fr}$,promotes flowering. During the night,$P_{fr}$ is converted back to $P_r$. By exposing the plant to red light during the dark period,$P_r$ is converted back to $P_{fr}$,thereby maintaining high levels of $P_{fr}$ and triggering the production of the hypothetical flowering hormone,'florigen',even if the natural day length is short.

$A$ hypothetical 'florigen' could be produced prematurely in a long-day plant by exposing it to:

Similar Questions

Which of the following factors of light affects plant growth to a great extent?

Assertion $(A)$: Vernalization is the acceleration of subsequent flowering by low-temperature treatment.
Reason $(R)$: The site of vernalization is the apical meristem.

The response of different organisms to the environmental rhythms of light and darkness is called

Which of the following is required for the formation of flowers in plants?

What will be the effect on phytochrome in a plant subjected to continuous red light?

Vedclass Test Series

Exam Paper Generator

Online Exam Module