Low-activity Cryptochrome 1 Plays a Role in Promoting Stem Elongation and Flower Initiation of Mature <em>Arabidopsis</em> under Blue Light Associated with Low Phytochrome Activity

Yun Kong; Youbin Zheng

doi:10.20944/preprints202105.0298.v1

Submitted:

10 May 2021

Posted:

13 May 2021

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Low-activity Cryptochrome 1 Plays a Role in Promoting Stem Elongation and Flower Initiation of Mature Arabidopsis under Blue Light Associated with Low Phytochrome Activity

Yun Kong,Youbin Zheng^*

A peer-reviewed article of this preprint also exists.

Submitted:

10 May 2021

Posted:

13 May 2021

You are already at the latest version

Abstract

To clarify whether cryptochrome contributes to stem elongation and flowering promoted by blue lights associated with low phytochrome activity, wild-type Arabidopsis was compared with its cryptochrome-deficient mutants and cryptochrome-overexpressing transgenic plants. Results indicated that the promotion effects were mainly related to low CRY1 activity, despite partial involvement of high-activity CRY2.

Keywords:

cryptochrome

;

phytochrome

;

Arabidopsis

;

mutants

;

stem elongation

;

flowering

Subject:

Biology and Life Sciences - Plant Sciences

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