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Plant and Cell Physiology, 2002, Vol. 43, No. 4 460-463
© 2002 Oxford University Press

Short Communications

A cAMP Receptor Protein, SYCRP1, is Responsible for the Cell Motility of Synechocystis sp. PCC 6803

Hidehisa Yoshimura, Shizue Yoshihara, Shinobu Okamoto, Masahiko Ikeuchi and Masayuki Ohmori1

Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo, 153-8902 Japan

Abstract

Disruption of the sycrp1 gene encoding a cyanobacterial cAMP receptor protein makes cells of Synechocystis sp. PCC 6803 non-motile. Electron microscopy showed that the sycrp1-deficient strain had a reduced number of thick pili on the cell surface compared with the wild-type strain. It is suggested that cAMP-SYCRP1 complex controls the biogenesis of pili.

Footnotes

1 Corresponding author: E-mail, cohmori@mail.ecc.u-tokyo.ac.jp; Fax, +81-3-5454-4333.


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