The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006
Serratia sp. ATCC 39006 produces intracellular gas vesicles to enable upward flotation in water columns. It also uses flagellar rotation to swim through liquid and swarm across semi-solid surfaces. Flotation and motility can be co-regulated with production of a β-lactam antibiotic (carbapenem carbox...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Blackwell Publishing Ltd
2020
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| Online Access: | https://umpir.ump.edu.my/id/eprint/29342/ |
| _version_ | 1848827276627542016 |
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| author | Yanes, Alex Quintero Lee, Chin Mei Monson, Rita Salmond, George |
| author_facet | Yanes, Alex Quintero Lee, Chin Mei Monson, Rita Salmond, George |
| author_sort | Yanes, Alex Quintero |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Serratia sp. ATCC 39006 produces intracellular gas vesicles to enable upward flotation in water columns. It also uses flagellar rotation to swim through liquid and swarm across semi-solid surfaces. Flotation and motility can be co-regulated with production of a β-lactam antibiotic (carbapenem carboxylate) and a linear tripyrrole red antibiotic, prodigiosin. Production of gas vesicles, carbapenem and prodigiosin antibiotics, and motility are controlled by master transcriptional and post-transcriptional regulators, including the SmaI/SmaR-based quorum sensing system and the mRNA binding protein, RsmA. Recently, the ribose operon repressor, RbsR, was also defined as a pleiotropic regulator of flotation and virulence factor elaboration in this strain. Here, we report the discovery of a new global regulator (FloR; a DeoR family transcription factor) that modulates flotation through control of gas vesicle morphogenesis. The floR mutation is highly pleiotropic, down-regulating production of gas vesicles, carbapenem and prodigiosin antibiotics, and infection in Caenorhabditis elegans, but up-regulating flagellar motility. Detailed proteomic analysis using TMT peptide labelling and LC–MS/MS revealed that FloR is a physiological master regulator that operates through subordinate pleiotropic regulators including Rap, RpoS, RsmA, PigU, PstS and PigT. |
| first_indexed | 2025-11-15T03:58:09Z |
| format | Article |
| id | ump-29342 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:58:09Z |
| publishDate | 2020 |
| publisher | Blackwell Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-293422025-09-26T08:03:03Z https://umpir.ump.edu.my/id/eprint/29342/ The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006 Yanes, Alex Quintero Lee, Chin Mei Monson, Rita Salmond, George QR Microbiology Serratia sp. ATCC 39006 produces intracellular gas vesicles to enable upward flotation in water columns. It also uses flagellar rotation to swim through liquid and swarm across semi-solid surfaces. Flotation and motility can be co-regulated with production of a β-lactam antibiotic (carbapenem carboxylate) and a linear tripyrrole red antibiotic, prodigiosin. Production of gas vesicles, carbapenem and prodigiosin antibiotics, and motility are controlled by master transcriptional and post-transcriptional regulators, including the SmaI/SmaR-based quorum sensing system and the mRNA binding protein, RsmA. Recently, the ribose operon repressor, RbsR, was also defined as a pleiotropic regulator of flotation and virulence factor elaboration in this strain. Here, we report the discovery of a new global regulator (FloR; a DeoR family transcription factor) that modulates flotation through control of gas vesicle morphogenesis. The floR mutation is highly pleiotropic, down-regulating production of gas vesicles, carbapenem and prodigiosin antibiotics, and infection in Caenorhabditis elegans, but up-regulating flagellar motility. Detailed proteomic analysis using TMT peptide labelling and LC–MS/MS revealed that FloR is a physiological master regulator that operates through subordinate pleiotropic regulators including Rap, RpoS, RsmA, PigU, PstS and PigT. Blackwell Publishing Ltd 2020 Article PeerReviewed pdf en https://umpir.ump.edu.my/id/eprint/29342/1/18.%20The%20FloR%20master%20regulator%20controls%20flotation%2C%20virulence.pdf Yanes, Alex Quintero and Lee, Chin Mei and Monson, Rita and Salmond, George and UNSPECIFIED (2020) The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006. Environmental Microbiology, 22 (7). pp. 1-18. ISSN 2921-2938. (Published) https://doi.org/10.1111/1462-2920.15048 https://doi.org/10.1111/1462-2920.15048 https://doi.org/10.1111/1462-2920.15048 |
| spellingShingle | QR Microbiology Yanes, Alex Quintero Lee, Chin Mei Monson, Rita Salmond, George The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006 |
| title | The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006 |
| title_full | The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006 |
| title_fullStr | The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006 |
| title_full_unstemmed | The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006 |
| title_short | The FloR master regulator controls flotation, virulence and antibiotic production in Serratia sp. ATCC 39006 |
| title_sort | flor master regulator controls flotation, virulence and antibiotic production in serratia sp. atcc 39006 |
| topic | QR Microbiology |
| url | https://umpir.ump.edu.my/id/eprint/29342/ https://umpir.ump.edu.my/id/eprint/29342/ https://umpir.ump.edu.my/id/eprint/29342/ |