Sammelbandbeitrag

Erschienen in: The Purple Phototrophic Bacteria

Herausgeberliste: Hunter, CN; Daldal, F; Thurnauer, MC; Beatty, JT;

Jahr der Veröffentlichung: 2009

Seiten: 727-741

ISBN: 978-1-4020-8814-8

eISBN: 978-1-4020-8815-5

DOI Link: https://doi.org/10.1007/978-1-4020-8815-5_36

Serientitel: Advances in photosynthesis and respiration

Serienzählung: 28

Abstract: 

Our current understanding of light-dependent regulation of gene
expression in purple bacteria is summarized. Most of the regulatory
systems utilize photoreceptor proteins that transmit a light-dependent
signal to different downstream components to control a wide variety of
physiological responses. The photoreceptors identified so far are
(bacterio)phytochrome, sensory rhodopsin, phototropin-related proteins,
BLUF domain proteins, cryptochrome, and photoactive yellow protein. They
use different chromophores such as bilin, retinal, flavin or p-coumaric
acid that absorb different wavelengths of light. Based on structural
and spectroscopic studies, photochemical reaction mechanisms are
beginning to be revealed, which show how the photoreceptors translate a
light signal into protein structural changes. On the other hand,
downstream factors as well as their signaling pathways are still largely
unknown. Purple bacteria also respond to the light environment
independently of the photoreceptors. Recent biochemical and genetic data
have established that the responses involve photosynthetic and
respiratory electron transport chains as well as reactive oxygen species
such as singlet oxygen. Regulatory mechanisms of the
photoreceptor-independent light responses are also discussed.

Harvard-Zitierstil: Klug, G. and Masuda, S. (2009) Regulation of genes by light, in Hunter, C., Daldal, F., Thurnauer, M., Beatty, J. and (eds.) The Purple Phototrophic Bacteria. Dordrecht: Springer, pp. 727-741. https://doi.org/10.1007/978-1-4020-8815-5_36

APA-Zitierstil: Klug, G., & Masuda, S. (2009). Regulation of genes by light. In Hunter, C., Daldal, F., Thurnauer, M., Beatty, J., & (Eds.), The Purple Phototrophic Bacteria (pp. 727-741). Springer. https://doi.org/10.1007/978-1-4020-8815-5_36