Graft Transmission of a Floral Stimulant Derived from CONSTANS

Description:

This article discusses graft transmission of a floral stimulant derived from CONSTANS.

Creator(s):
Creation Date: August 2004
Partner(s):
UNT College of Arts and Sciences
Collection(s):
UNT Scholarly Works
Usage:
Total Uses: 64
Past 30 days: 2
Yesterday: 0
Creator (Author):
Ayre, Brian G.

University of North Texas

Creator (Author):
Turgeon, Robert

Cornell University

Publisher Info:
Place of Publication: [Rockville, Maryland]
Date(s):
  • Creation: August 2004
Description:

This article discusses graft transmission of a floral stimulant derived from CONSTANS.

Degree:
Department: Biological Sciences
Note:

Plant Physiology, August 2004, Vol. 135, pp. 2271-2278, www.plantphysiol.org/cgi/doi/10.1104/pp.104.040592; © 2004 American Society of Plant Biologists

Note:

Abstract: Photoperiod in plants is perceived by leaves and in many species influences the transition to reproductive growth through long-distance signaling. CONSTANS (CO) is implicated as a mediator between photoperiod perception and the transition to flowering in Arabidopsis. To test the role of CO in long-distance signaling, CO was expressed from a promoter specific to the companion cells of the smallest veins of mature leaves. This expression in tissues at the inception of the phloem translocation stream was sufficient to accelerate flowering at the apical meristem under noninductive (short-day) conditions. Grafts that conjoined the vegetative stems of plants with different flower-timing phenotypes demonstrated that minor-vein expression of CO is able to substitute for photoperiod in generating a mobile flowering signal. The authors' results suggest that a CO-derived signal(s), or possibly CO itself, fits the definition of the hypothetical flowering stimulant, florigen.

Physical Description:

8 p.

Language(s):
Subject(s):
Keyword(s): flowering | plants | grafts | photoperiod
Source: Plant Physiology, 2004, Rockville: American Society of Plant Biologists, pp. 2271-2278
Partner:
UNT College of Arts and Sciences
Collection:
UNT Scholarly Works
Identifier:
  • DOI: 10.1104/pp.104.040592 |
  • ARK: ark:/67531/metadc81380
Resource Type: Article
Format: Text
Rights:
Access: Public
Citation:
Publication Title: Plant Physiology
Volume: 135
Page Start: 2271
Page End: 2278
Pages: 8
Peer Reviewed: Yes