Regulation of cAMP-mediated Photosignaling by a Phytochrome in the Cyanobacterium Anabaena cylindrica¶

Masayuki Ohmori; Kazuki Terauchi; Shinobu Okamoto; Masakatu Watanabe

doi:10.1562/0031-8655(2002)075<0675:ROCMPB>2.0.CO;2

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Masayuki Ohmori,^1,* Kazuki Terauchi,^1,** Shinobu Okamoto,¹ Masakatu Watanabe²

¹aDepartment of Biology, Graduate School of Arts and Sciences, University of Tokyo, Komaba, Tokyo, Ja
²bNational Institute for Basic Biology, Okazaki, Japan

^**To whom correspondence should be addressed at: Department of Biology, Graduate School of Arts and Sciences, University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan. Fax: 81-3-5454-4333; cohmori@mail.ecc.u-tokyo.ac.jp
^**†Current address: Department of Biology, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan

Abstract

Changes in cellular adenosine 3′,5′-cyclic monophosphate (cAMP) content induced by monochromatic light of various wavelengths were determined in the cyanobacterium Anabaena cylindrica. Irradiation with monochromatic red light caused a rapid decrease in cAMP content. In contrast, far-red light caused a rapid increase in its content. The effects of red and far-red light were reversible, suggesting the involvement of a prototype phytochrome as the photoreceptor for cAMP-mediated light-responsive signal transduction.

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Masayuki Ohmori, Kazuki Terauchi, Shinobu Okamoto, and Masakatu Watanabe "Regulation of cAMP-mediated Photosignaling by a Phytochrome in the Cyanobacterium Anabaena cylindrica," Photochemistry and Photobiology 75(6), 675-679, (1 June 2002). https://doi.org/10.1562/0031-8655(2002)075<0675:ROCMPB>2.0.CO;2

Received: 13 December 2001; Accepted: 1 March 2002; Published: 1 June 2002

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