In the original article, there was a mistake in Figure 1A as published. The names of the third and fourth enzymes of the alginate synthesis pathway are wrong. The correct name for the third enzyme is GDP-mannose pyrophosphorylase (AlgA), and the correct name for the fourth enzyme is GDP-mannose dehydrogenase (AlgD). The corrected figure appears below.
Figure 1

Alginate synthesis in Azotobacter vinelandii. (A) Biosynthetic pathway. The enzymes (red) as well as the substrates (blue) for alginate production are indicated. (B) Genetic arrangement of alginate biosynthetic genes. The experimentally determined promoters are indicated by vertical black lines. algD transcription starts from three promoters (for details, see the text). The nature of the internal promoters upstream alg8, algG, and algA is unknown. Genes are not shown at scale.
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
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Summary
Keywords
alginate, Azotobacter vinelandii, genetic regulation, GacS/A-Rsm, c-di-GMP
Citation
Núñez C, López-Pliego L, Ahumada-Manuel CL and Castañeda M (2022) Corrigendum: Genetic Regulation of Alginate Production in Azotobacter vinelandii a Bacterium of Biotechnological Interest: A Mini-Review. Front. Microbiol. 13:940908. doi: 10.3389/fmicb.2022.940908
Received
10 May 2022
Accepted
11 May 2022
Published
09 June 2022
Approved by
Frontiers Editorial Office, Frontiers Media SA, Switzerland
Volume
13 - 2022
Updates
Copyright
© 2022 Núñez, López-Pliego, Ahumada-Manuel and Castañeda.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Miguel Castañeda miguel.castaneda@correo.buap.mx
†These authors share senior authorship
This article was submitted to Microbiotechnology, a section of the journal Frontiers in Microbiology
Disclaimer
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.