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A small heat-shock protein (Hsp20) regulated by RpoS is essential for cyst desiccation resistance in Azotobacter vinelandii.

Microbiology (Reading, England) - 1 Mar 2014

Cocotl-Yañez Miguel, Moreno Soledad, Encarnación Sergio, López-Pliego Liliana, Castañeda Miguel, Espín Guadalupe

Abstract excerpt

In Azotobacter vinelandii, a cyst-forming bacterium, the alternative sigma factor RpoS is essential to the formation of cysts resistant to desiccation and to synthesis of the cyst-specific lipids, alkylresorcinols. In this study, we carried out a proteome analysis of vegetative cells and cysts of A. vinelandii strain AEIV and its rpoS mutant derivative AErpoS. This analysis allowed us to identify a small...

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PMID: 24385478
DOI: 10.1099/mic.0.073353-0

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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