Affordable Access

Publisher Website

Inhibition of cell division by blue light

Authors
Journal
Experimental Cell Research
0014-4827
Publisher
Elsevier
Publication Date
Volume
79
Issue
2
Identifiers
DOI: 10.1016/0014-4827(73)90450-3
Disciplines
  • Biology

Abstract

Abstract Microsporocytes of Lilium and Trillium can revert into a mitotic cycle when separated from the anther before the beginning of meiosis and cultured in vitro. Repeated short daily irradiations with visible blue light (10 6 ergs cm −2 sec −1) inhibit the onset of mitosis; the cells remain in interphase instead. The inhibition of cell division is reversed after the end of the light treatment. Meiosis is not affected by light. Part of the premeiotic G2 phase is light sensitive. No arrest of DNA-, RNA- or protein synthesis is involved in the photoinhibition of onset of mitosis. Irradiation with blue light decreases the α- absorption band of cytochrome a 3 but not of cytochrome a. This effect on cytochrome oxidase, however, is observed in all stages of meitotic prophase as well as in G2 cells.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Inhibition of cell division by blue light.

on Experimental Cell Research June 1973

[Cell division and morphogenesis of sporophytes of...

on Zeitschrift für Naturforschun... June 1965

Effects of blue and red light on the cell division...

on Plant Science Letters Jan 01, 1974
More articles like this..