title: Circadian Rhythm of the Prokaryote Synechococcus sp. RF-1.
abstract: The prokaryotic Synechococcus sp. RF-1 exhibited a nitrogen fixation circadian rhythm with characteristics remarkably similar to the circadian rhythm of eukaryotes. The rhythm had a free-running period of about 24 hours when the length of the preen-trained cycle did not differ too much from 24 hours, and it was insensitive to changes in temperature from 22 degrees C to 33 degrees C. Because the endogenous rhythm of nitrogen fixation was not affected by a phase-shift of its previous cycles, the circadian rhythm in Synechococcus sp. RF-1 was not considered to be controlled simply by a feedback mechanism.
authors: Institute of Botany, Academia Sinica, Nankang, Taipei, Taiwan 11529, Republic of China.
authors: T C
authors: TC
authors: Huang
authors: J
authors: J
authors: Tu
authors: T J
authors: TJ
authors: Chow
authors: T H
authors: TH
authors: Chen