Photomorphogenesis and Photoperiodism in Plants

James L. Weller*, Richard E. Kendrick

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

7 Citations (Scopus)

Abstract

It has long been observed that light affects the way plants grow and develop. Photomorphogenesis encompasses all responses to light that affect plant form. Phototropic responses involve the reorientation of plant organs with respect to an asymmetry in the incident light Photoperiodic responses are those in which various aspects of development are modified in response to changes in the daily light/dark cycle, and involve a circadian timing mechanism. This chapter deals with the discovery and nature of the photoreceptors involved in these phenomena, their physiological roles as determined in the laboratory, and their possible significance in the natural environment. Although lower plants also show clear photomorphogenic responses, they have in general been less intensively studied, and we will restrict this discussion to higher plants.
Original languageEnglish
Title of host publicationPhotobiology
Subtitle of host publicationThe Science of Light and Life
EditorsLars Olof Björn
PublisherSpringer
Chapter19
Pages299-321
ISBN (Electronic)9781493914685
ISBN (Print)9781493914678
DOIs
Publication statusPublished - 26 Nov 2014

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