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L-Arabinose Induces...
L-Arabinose Induces the Formation of Viable Nonproliferating Spheroplasts in Vibrio cholerae
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- Espinosa, Elena (författare)
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
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- Daniel, Sandra (författare)
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
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- Hernández, Sara B. (författare)
- Umeå universitet,Molekylär Infektionsmedicin, Sverige (MIMS),Institutionen för molekylärbiologi (Medicinska fakulteten)
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- Goudin, Anthony (författare)
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
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- Cava, Felipe (författare)
- Umeå universitet,Molekylär Infektionsmedicin, Sverige (MIMS),Institutionen för molekylärbiologi (Medicinska fakulteten)
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- Barre, François Xavier (författare)
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
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- Galli, Elisa (författare)
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France
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(creator_code:org_t)
- American Society for Microbiology, 2021
- 2021
- Engelska.
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Ingår i: Applied and Environmental Microbiology. - : American Society for Microbiology. - 0099-2240 .- 1098-5336. ; 87:5
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Vibrio cholerae, the agent of the deadly human disease cholera, propagates as a curved rod-shaped bacterium in warm waters. It is sensitive to cold but persists in cold waters in the form of viable but nondividing coccoidal-shaped cells. Additionally, V. cholerae is able to form nonproliferating spherical cells in response to cell wall damage. It was recently reported that L-arabinose, a component of the hemicellulose and pectin of terrestrial plants, stops the growth of V. cholerae. Here, we show that L-arabinose induces the formation of spheroplasts that lose the ability to divide and stop growing in volume over time. However, they remain viable, and upon removal of L-arabinose, they start expanding in volume, form branched structures, and give rise to cells with a normal morphology after a few divisions. We further show that WigKR, a histidine kinase/response regulator pair implicated in the induction of high-level expression of cell wall synthetic genes, prevents the lysis of the spheroplasts during growth restart. Finally, we show that the physiological perturbations result from the import and catabolic processing of L-arabinose by the V. cholerae homolog of the Escherichia coli galactose transport and catabolic system. Taken together, our results suggest that the formation of nongrowing spherical cells is a common response of vibrios exposed todetrimental conditions. They also permit us to define conditions preventing any physiological perturbation of V. cholerae when using L-arabinose to induce gene expression from the tightly regulated promoter of the Escherichia coli araBAD operon.
Ämnesord
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Nyckelord
- growth arrest
- L-arabinose
- spheroplasts
- Vibrio cholerae
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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