Circadian phase-delay in the <I>cmpR</I> disrupted cyanobacterium <I>Synechococcus</I> sp. PCC 7942
-
- kutsuna Shinsuke
- Graduate School of Integrated Science, Yokohama City Univ.
-
- Takahashi Yukari
- Graduate School of Bioagricultural Science, Nagoya Univ.
-
- Tanaka Hiromitsu
- Graduate School of Integrated Science, Yokohama City Univ.
-
- Nakano Yohko
- Graduate School of Integrated Science, Yokohama City Univ.
-
- Katayama Mitsunori
- Graduate School of Science, Nagoya Univ.
-
- Kondo Takao
- Graduate School of Science, Nagoya Univ.
-
- Ishiura Masahiro
- Graduate School of Science, Nagoya Univ.
-
- Manabe Katsushi
- Graduate School of Integrated Science, Yokohama City Univ.
-
- Omata Tatsuo
- Graduate School of Bioagricultural Science, Nagoya Univ.
Bibliographic Information
- Other Title
-
- シアノバクテリア<I>Synechococcus</I> sp. PCC 7942の概日位相調節変異の原因遺伝子<I>cmpR</I>の同定
Abstract
The pex gene extends the circadian period and <I>pex </I> mRNA is abundant in the darkness. This implied signal transduction pathway to the pex gene expression. Then, by using bioluminescence reporter strain for pex expression, we identified a pex expression mutant. The causative transposon insertion was occurred in cmpR gene coding a LysR-type DNA binding factor, CmpR. This regulates gene expression for bicarbonate transporter operon (Omata et al., 2001). Bioluminescence rhythm in the mutant showed circadian phase-delay by 6-hours as compared with the one in a wild-type reporter for the expression of clock operon kaiBC. This delay was complemented by transformation of the cmpR trans-gene. The phase-delay phenotype was partially suppressed by disruption of pex, suggesting that pex gene expression is required to the abnormal rhythm. From these results, it was revealed that cmpR and pex functioned to modulate phase of the circadian oscillator.
Journal
-
- Plant and Cell Physiology Supplement
-
Plant and Cell Physiology Supplement 2004 (0), 171-171, 2004
The Japanese Society of Plant Physiologists
- Tweet
Details 詳細情報について
-
- CRID
- 1390282680605057792
-
- NII Article ID
- 130006988688
-
- Data Source
-
- JaLC
- CiNii Articles
-
- Abstract License Flag
- Disallowed