Journal
FEBS LETTERS
Volume 579, Issue 18, Pages 4012-4016Publisher
WILEY
DOI: 10.1016/j.febslet.2005.06.014
Keywords
reactive oxygen species; carotenoid; oxygen; hydrogen peroxide; Neurospora crassa
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Previously, we found that intracellular reactive oxygen species (ROS) affect photomorphogenesis in Neurospora crassa. In this study, we investigated the physiological roles of ROS in the response to light and found that the exposure of mycelia to air was important for the light-induced carotenogenesis. Mycelia treated with a high concentration of O-2 gas and H2O2 to release ROS showed an enhancement of light-induced carotenoid accumulation and the expression of gene related to light-inducible carotenogenesis. These results suggested that stimuli caused by the exposure of the mycelia to air containing O-2 gas triggered the light-induced carotenoid synthesis. (c) 2005 Published by Elsevier B.V. on behalf of the Federation of European Biochemical Societies.
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