Crossref journal-article
Wiley
Molecular Microbiology (311)
Abstract

SummaryThe effect of iron on ferredoxin I specific mRNA levels was studied in the cyanobacterial strains Synechococcus sp. PCC 7942 (Anacystis nidulans R2) and Anabaena sp. PCC 7937 (Anabaena variabilis ATCC 29413). In both strains addition of iron to iron‐limited cells resulted in a rapid increase in ferredoxin mRNA levels. To investigate the possible role of the ferredoxin promoter in iron regulation, a vector for promoter analysis in Synechococcus PCC 7942 strain R2‐PIM9 was constructed, which contains the ferredoxin promoter fused to the gene encoding β‐glu‐curonidase (GUS) as reporter. Neither the Synechococcus nor the Anabaena ferredoxin promoter was able to direct iron‐regulated GUS activity in Synechococcus R2‐PIM9, Indicating that transcription initiation is not responsible for the iron‐dependent ferredoxin mRNA levels. Determination of the half‐life of the ferredoxin transcript in iron‐supplemented and iron‐limited cells revealed that, in both strains, the ferredoxin transcript is much more stable in iron‐supplemented cells than in iron‐limited cells. These results lead to the conclusion that in these strains, iron‐regulated expression of the ferredoxin I gene is mediated via differential mRNA stability.

Bibliography

Bovy, A., de Vrieze, G., Lugones, L., van Horssen, P., van den Berg, C., Borrias, M., & Weisbeek, P. (1993). Iron‐dependent stability of the ferredoxin I transcripts from the cyanobacterial strains Synechococcus species PCC 7942 and Anabaena species PCC 7937. Molecular Microbiology, 7(3), 429–439. Portico.

Authors 7
  1. Arnaud Bovy (first)
  2. Geert de Vrieze (additional)
  3. Luis Lugones (additional)
  4. Peter van Horssen (additional)
  5. Claudia van den Berg (additional)
  6. Mies Borrias (additional)
  7. Peter Weisbeek (additional)
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Dates
Type When
Created 18 years, 9 months ago (Oct. 27, 2006, 9:07 p.m.)
Deposited 1 year, 10 months ago (Oct. 25, 2023, 12:29 a.m.)
Indexed 1 year, 9 months ago (Nov. 8, 2023, 9:41 a.m.)
Issued 32 years, 6 months ago (Feb. 1, 1993)
Published 32 years, 6 months ago (Feb. 1, 1993)
Published Online 18 years, 9 months ago (Oct. 27, 2006)
Published Print 32 years, 6 months ago (Feb. 1, 1993)
Funders 0

None

@article{Bovy_1993, title={Iron‐dependent stability of the ferredoxin I transcripts from the cyanobacterial strains Synechococcus species PCC 7942 and Anabaena species PCC 7937}, volume={7}, ISSN={1365-2958}, url={http://dx.doi.org/10.1111/j.1365-2958.1993.tb01134.x}, DOI={10.1111/j.1365-2958.1993.tb01134.x}, number={3}, journal={Molecular Microbiology}, publisher={Wiley}, author={Bovy, Arnaud and de Vrieze, Geert and Lugones, Luis and van Horssen, Peter and van den Berg, Claudia and Borrias, Mies and Weisbeek, Peter}, year={1993}, month=feb, pages={429–439} }