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Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces
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| Zeitschriftentitel: | Microbiology |
|---|---|
| Personen und Körperschaften: | , , , , , , |
| In: | Microbiology, 152, 2006, 8, S. 2287-2299 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Microbiology Society
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| Schlagwörter: |
| author_facet |
Zhao, Xiaomin Daniels, Karla J. Oh, Soon-Hwan Green, Clayton B. Yeater, Kathleen M. Soll, David R. Hoyer, Lois L. Zhao, Xiaomin Daniels, Karla J. Oh, Soon-Hwan Green, Clayton B. Yeater, Kathleen M. Soll, David R. Hoyer, Lois L. |
|---|---|
| author |
Zhao, Xiaomin Daniels, Karla J. Oh, Soon-Hwan Green, Clayton B. Yeater, Kathleen M. Soll, David R. Hoyer, Lois L. |
| spellingShingle |
Zhao, Xiaomin Daniels, Karla J. Oh, Soon-Hwan Green, Clayton B. Yeater, Kathleen M. Soll, David R. Hoyer, Lois L. Microbiology Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces Microbiology |
| author_sort |
zhao, xiaomin |
| spelling |
Zhao, Xiaomin Daniels, Karla J. Oh, Soon-Hwan Green, Clayton B. Yeater, Kathleen M. Soll, David R. Hoyer, Lois L. 1350-0872 1465-2080 Microbiology Society Microbiology http://dx.doi.org/10.1099/mic.0.28959-0 <jats:p><jats:italic>Candida albicans ALS3</jats:italic>encodes a large cell-surface glycoprotein that has adhesive properties. Immunostaining of cultured<jats:italic>C. albicans</jats:italic>germ tubes showed that Als3p is distributed diffusely across the germ tube surface. Two-photon laser scanning microscopy of model catheter biofilms grown using a P<jats:italic>ALS3</jats:italic>-green fluorescent protein (GFP) reporter strain showed GFP production in hyphae throughout the biofilm structure while biofilms grown using a P<jats:italic>TPI1</jats:italic>-GFP reporter strain showed GFP in both hyphae and yeast-form cells. Model catheter biofilms formed by an<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain were weakened structurally and had approximately half the biomass of a wild-type biofilm. Reintegration of a wild-type<jats:italic>ALS3</jats:italic>allele restored biofilm mass and wild-type biofilm structure. Production of an Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein under control of the<jats:italic>ALS3</jats:italic>promoter in the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain restored some of the wild-type biofilm structural features, but not the wild-type biofilm mass. Despite its inability to restore wild-type biofilm mass, the Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein mediated adhesion of the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ<jats:italic>C. albicans</jats:italic>strain to human buccal epithelial cells (BECs). The adhesive role of the Als3p N-terminal domain was further demonstrated by blocking adhesion of<jats:italic>C. albicans</jats:italic>to BECs with immunoglobulin reactive against the Als3p N-terminal sequences. Together, these data suggest that portions of Als3p that are important for biofilm formation may be different from those that are important in BEC adhesion, and that Als3p may have multiple functions in biofilm formation. Overexpression of<jats:italic>ALS3</jats:italic>in an<jats:italic>efg1</jats:italic>Δ/<jats:italic>efg1</jats:italic>Δ strain that was deficient for filamentous growth and biofilm formation resulted in growth of elongated<jats:italic>C. albicans</jats:italic>cells, even under culture conditions that do not favour filamentation. In the catheter biofilm model, the<jats:italic>ALS3</jats:italic>overexpression strain formed biofilm with a mass similar to that of a wild-type control. However,<jats:italic>C. albicans</jats:italic>cells in the biofilm had yeast-like morphology. This result uncouples the effect of cellular morphology from biofilm formation and underscores the importance of Als3p in biofilm development on silicone elastomer surfaces.</jats:p> Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces Microbiology |
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10.1099/mic.0.28959-0 |
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Online Free |
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Biologie |
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Microbiology Society, 2006 |
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Microbiology Society, 2006 |
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1350-0872 1465-2080 |
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1350-0872 1465-2080 |
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2006 |
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Microbiology Society |
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Microbiology |
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| title |
Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_unstemmed |
Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_full |
Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_fullStr |
Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_full_unstemmed |
Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_short |
Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_sort |
candida albicans als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| topic |
Microbiology |
| url |
http://dx.doi.org/10.1099/mic.0.28959-0 |
| publishDate |
2006 |
| physical |
2287-2299 |
| description |
<jats:p><jats:italic>Candida albicans ALS3</jats:italic>encodes a large cell-surface glycoprotein that has adhesive properties. Immunostaining of cultured<jats:italic>C. albicans</jats:italic>germ tubes showed that Als3p is distributed diffusely across the germ tube surface. Two-photon laser scanning microscopy of model catheter biofilms grown using a P<jats:italic>ALS3</jats:italic>-green fluorescent protein (GFP) reporter strain showed GFP production in hyphae throughout the biofilm structure while biofilms grown using a P<jats:italic>TPI1</jats:italic>-GFP reporter strain showed GFP in both hyphae and yeast-form cells. Model catheter biofilms formed by an<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain were weakened structurally and had approximately half the biomass of a wild-type biofilm. Reintegration of a wild-type<jats:italic>ALS3</jats:italic>allele restored biofilm mass and wild-type biofilm structure. Production of an Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein under control of the<jats:italic>ALS3</jats:italic>promoter in the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain restored some of the wild-type biofilm structural features, but not the wild-type biofilm mass. Despite its inability to restore wild-type biofilm mass, the Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein mediated adhesion of the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ<jats:italic>C. albicans</jats:italic>strain to human buccal epithelial cells (BECs). The adhesive role of the Als3p N-terminal domain was further demonstrated by blocking adhesion of<jats:italic>C. albicans</jats:italic>to BECs with immunoglobulin reactive against the Als3p N-terminal sequences. Together, these data suggest that portions of Als3p that are important for biofilm formation may be different from those that are important in BEC adhesion, and that Als3p may have multiple functions in biofilm formation. Overexpression of<jats:italic>ALS3</jats:italic>in an<jats:italic>efg1</jats:italic>Δ/<jats:italic>efg1</jats:italic>Δ strain that was deficient for filamentous growth and biofilm formation resulted in growth of elongated<jats:italic>C. albicans</jats:italic>cells, even under culture conditions that do not favour filamentation. In the catheter biofilm model, the<jats:italic>ALS3</jats:italic>overexpression strain formed biofilm with a mass similar to that of a wild-type control. However,<jats:italic>C. albicans</jats:italic>cells in the biofilm had yeast-like morphology. This result uncouples the effect of cellular morphology from biofilm formation and underscores the importance of Als3p in biofilm development on silicone elastomer surfaces.</jats:p> |
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| author | Zhao, Xiaomin, Daniels, Karla J., Oh, Soon-Hwan, Green, Clayton B., Yeater, Kathleen M., Soll, David R., Hoyer, Lois L. |
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| description | <jats:p><jats:italic>Candida albicans ALS3</jats:italic>encodes a large cell-surface glycoprotein that has adhesive properties. Immunostaining of cultured<jats:italic>C. albicans</jats:italic>germ tubes showed that Als3p is distributed diffusely across the germ tube surface. Two-photon laser scanning microscopy of model catheter biofilms grown using a P<jats:italic>ALS3</jats:italic>-green fluorescent protein (GFP) reporter strain showed GFP production in hyphae throughout the biofilm structure while biofilms grown using a P<jats:italic>TPI1</jats:italic>-GFP reporter strain showed GFP in both hyphae and yeast-form cells. Model catheter biofilms formed by an<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain were weakened structurally and had approximately half the biomass of a wild-type biofilm. Reintegration of a wild-type<jats:italic>ALS3</jats:italic>allele restored biofilm mass and wild-type biofilm structure. Production of an Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein under control of the<jats:italic>ALS3</jats:italic>promoter in the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain restored some of the wild-type biofilm structural features, but not the wild-type biofilm mass. Despite its inability to restore wild-type biofilm mass, the Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein mediated adhesion of the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ<jats:italic>C. albicans</jats:italic>strain to human buccal epithelial cells (BECs). The adhesive role of the Als3p N-terminal domain was further demonstrated by blocking adhesion of<jats:italic>C. albicans</jats:italic>to BECs with immunoglobulin reactive against the Als3p N-terminal sequences. Together, these data suggest that portions of Als3p that are important for biofilm formation may be different from those that are important in BEC adhesion, and that Als3p may have multiple functions in biofilm formation. Overexpression of<jats:italic>ALS3</jats:italic>in an<jats:italic>efg1</jats:italic>Δ/<jats:italic>efg1</jats:italic>Δ strain that was deficient for filamentous growth and biofilm formation resulted in growth of elongated<jats:italic>C. albicans</jats:italic>cells, even under culture conditions that do not favour filamentation. In the catheter biofilm model, the<jats:italic>ALS3</jats:italic>overexpression strain formed biofilm with a mass similar to that of a wild-type control. However,<jats:italic>C. albicans</jats:italic>cells in the biofilm had yeast-like morphology. This result uncouples the effect of cellular morphology from biofilm formation and underscores the importance of Als3p in biofilm development on silicone elastomer surfaces.</jats:p> |
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| spelling | Zhao, Xiaomin Daniels, Karla J. Oh, Soon-Hwan Green, Clayton B. Yeater, Kathleen M. Soll, David R. Hoyer, Lois L. 1350-0872 1465-2080 Microbiology Society Microbiology http://dx.doi.org/10.1099/mic.0.28959-0 <jats:p><jats:italic>Candida albicans ALS3</jats:italic>encodes a large cell-surface glycoprotein that has adhesive properties. Immunostaining of cultured<jats:italic>C. albicans</jats:italic>germ tubes showed that Als3p is distributed diffusely across the germ tube surface. Two-photon laser scanning microscopy of model catheter biofilms grown using a P<jats:italic>ALS3</jats:italic>-green fluorescent protein (GFP) reporter strain showed GFP production in hyphae throughout the biofilm structure while biofilms grown using a P<jats:italic>TPI1</jats:italic>-GFP reporter strain showed GFP in both hyphae and yeast-form cells. Model catheter biofilms formed by an<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain were weakened structurally and had approximately half the biomass of a wild-type biofilm. Reintegration of a wild-type<jats:italic>ALS3</jats:italic>allele restored biofilm mass and wild-type biofilm structure. Production of an Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein under control of the<jats:italic>ALS3</jats:italic>promoter in the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ strain restored some of the wild-type biofilm structural features, but not the wild-type biofilm mass. Despite its inability to restore wild-type biofilm mass, the Als3p–Ag<jats:italic>α</jats:italic>1p fusion protein mediated adhesion of the<jats:italic>als3</jats:italic>Δ/<jats:italic>als3</jats:italic>Δ<jats:italic>C. albicans</jats:italic>strain to human buccal epithelial cells (BECs). The adhesive role of the Als3p N-terminal domain was further demonstrated by blocking adhesion of<jats:italic>C. albicans</jats:italic>to BECs with immunoglobulin reactive against the Als3p N-terminal sequences. Together, these data suggest that portions of Als3p that are important for biofilm formation may be different from those that are important in BEC adhesion, and that Als3p may have multiple functions in biofilm formation. Overexpression of<jats:italic>ALS3</jats:italic>in an<jats:italic>efg1</jats:italic>Δ/<jats:italic>efg1</jats:italic>Δ strain that was deficient for filamentous growth and biofilm formation resulted in growth of elongated<jats:italic>C. albicans</jats:italic>cells, even under culture conditions that do not favour filamentation. In the catheter biofilm model, the<jats:italic>ALS3</jats:italic>overexpression strain formed biofilm with a mass similar to that of a wild-type control. However,<jats:italic>C. albicans</jats:italic>cells in the biofilm had yeast-like morphology. This result uncouples the effect of cellular morphology from biofilm formation and underscores the importance of Als3p in biofilm development on silicone elastomer surfaces.</jats:p> Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces Microbiology |
| spellingShingle | Zhao, Xiaomin, Daniels, Karla J., Oh, Soon-Hwan, Green, Clayton B., Yeater, Kathleen M., Soll, David R., Hoyer, Lois L., Microbiology, Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces, Microbiology |
| title | Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_full | Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_fullStr | Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_full_unstemmed | Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_short | Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_sort | candida albicans als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| title_unstemmed | Candida albicans Als3p is required for wild-type biofilm formation on silicone elastomer surfaces |
| topic | Microbiology |
| url | http://dx.doi.org/10.1099/mic.0.28959-0 |