Transcriptional Analysis of the Unicellular, Diazotrophic Cyanobacterium Cyanothece Sp. Atcc 51142 Grown under Short Day/night Cycles(1).

Transcriptional Analysis of the Unicellular, Diazotrophic Cyanobacterium Cyanothece ATCC 51142 Grown Under Short Day/Night Cycles

1 Cyanothece sp. strain ATCC 51142 is a unicellular, diazotrophic cyanobacterium that demonstrates 2 extensive metabolic periodicities of photosynthesis, respiration and nitrogen fixation when grown under 3 N2-fixing conditions. We have performed a global transcription analysis of this organism using 6 h 4 light/dark cycles in order to determine the response of the cell to these conditions and ...

Better living through cyanothece - unicellular diazotrophic cyanobacteria with highly versatile metabolic systems.

Cyanothece sp. ATCC 51142 is a unicellular, diazotrophic cyanobacterium with a versatile metabolism and very pronounced diurnal rhythms. Since nitrogen fixation is exquisitely sensitive to oxygen, Cyanotheceutilizes temporal regulation to accommodate these incompatible processes in a single cell. When grown under 12 h light-dark (LD) periods, it performs photosynthesis during the day and N(2) f...

Transcriptional and translational regulation of nitrogenase in light-dark- and continuous-light-grown cultures of the unicellular cyanobacterium Cyanothece sp. strain ATCC 51142.

Cyanothece sp. strain ATCC 51142 is a unicellular, diazotrophic cyanobacterium which demonstrated extensive metabolic periodicities of photosynthesis, respiration, and nitrogen fixation when grown under N2-fixing conditions. N2 fixation and respiration peaked at 24-h intervals early in the dark or subjective-dark period, whereas photosynthesis was approximately 12 h out of phase and peaked towa...

Hydrogen Production by the Unicellular Diazotrophic Cyanobacterium Cyanothece ATCC sp. Strain 51142 Under Continuous Light

Influence of mixotrophic growth on rhythmic oscillations in expression of metabolic pathways in diazotrophic cyanobacterium Cyanothece sp. ATCC 51142.

This study investigates the influence of mixotrophy on physiology and metabolism by analysis of global gene expression in unicellular diazotrophic cyanobacterium Cyanothece sp. ATCC 51142 (henceforth Cyanothece 51142). It was found that Cyanothece 51142 continues to oscillate between photosynthesis and respiration in continuous light under mixotrophy with cycle time of ∼ 13 h. Mixotrophy is mar...