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Light-induced linear dichroism in photoreversibly photochromic sensor pigments 1. Theory

In English

Författare

Summary, in English

With a photoreversibly photochromic regulator pigment such as phytochrome, linear action dichroism could theoretically be obtained after photoselection even if the molecules are initially randomly oriented. If randomly oriented Pr (red-absorbing phytochrome) (plant photoregulators) molecules are partially converted to Pfr (far-red absorbing phytochrome) molecules by plane-polarized red light, those molecules will preferentially be converted which have their red transition moments nearly parallel to the electric vector of the red light. The effect of subsequent plane-polarized far-red light will depend on the plane of polarization. A general theory is developed for how this can be used to determine whether or not the transition moment changes direction during conversion. The pigment need not be isolated, since only physiological reactions (such as germination or chromatic adaptation) are measured.

Publiceringsår

1981

Språk

Engelska

Sidor

707-711

Publikation/Tidskrift/Serie

Photochemistry and Photobiology

Volym

33

Issue

5

Dokumenttyp

Artikel i tidskrift

Förlag

American Society for Photobiology

Ämne

  • Biological Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0031-8655