Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae.
Pseudomonas syringae is an important phyllosphere colonist that utilizes flagellum-mediated motility both as a means to explore leaf surfaces, as well as to invade into leaf interiors, where it survives as a pathogen. We found that multiple forms of flagellum-mediated motility are thermo-suppressed,...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2013-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23527276/pdf/?tool=EBI |
| _version_ | 1818458923212996608 |
|---|---|
| author | Kevin L Hockett Adrien Y Burch Steven E Lindow |
| author_facet | Kevin L Hockett Adrien Y Burch Steven E Lindow |
| author_sort | Kevin L Hockett |
| collection | DOAJ |
| description | Pseudomonas syringae is an important phyllosphere colonist that utilizes flagellum-mediated motility both as a means to explore leaf surfaces, as well as to invade into leaf interiors, where it survives as a pathogen. We found that multiple forms of flagellum-mediated motility are thermo-suppressed, including swarming and swimming motility. Suppression of swarming motility occurs between 28° and 30 °C, which coincides with the optimal growth temperature of P. syringae. Both fliC (encoding flagellin) and syfA (encoding a non-ribosomal peptide synthetase involved in syringafactin biosynthesis) were suppressed with increasing temperature. RNA-seq revealed 1440 genes of the P. syringae genome are temperature sensitive in expression. Genes involved in polysaccharide synthesis and regulation, phage and IS elements, type VI secretion, chemosensing and chemotaxis, translation, flagellar synthesis and motility, and phytotoxin synthesis and transport were generally repressed at 30 °C, while genes involved in transcriptional regulation, quaternary ammonium compound metabolism and transport, chaperone/heat shock proteins, and hypothetical genes were generally induced at 30 °C. Deletion of flgM, a key regulator in the transition from class III to class IV gene expression, led to elevated and constitutive expression of fliC regardless of temperature, but did not affect thermo-regulation of syfA. This work highlights the importance of temperature in the biology of P. syringae, as many genes encoding traits important for plant-microbe interactions were thermo-regulated. |
| first_indexed | 2024-12-14T23:06:10Z |
| format | Article |
| id | doaj.art-7bb6ee172028442b83008005a56e1271 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-14T23:06:10Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-7bb6ee172028442b83008005a56e12712022-12-21T22:44:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0183e5985010.1371/journal.pone.0059850Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae.Kevin L HockettAdrien Y BurchSteven E LindowPseudomonas syringae is an important phyllosphere colonist that utilizes flagellum-mediated motility both as a means to explore leaf surfaces, as well as to invade into leaf interiors, where it survives as a pathogen. We found that multiple forms of flagellum-mediated motility are thermo-suppressed, including swarming and swimming motility. Suppression of swarming motility occurs between 28° and 30 °C, which coincides with the optimal growth temperature of P. syringae. Both fliC (encoding flagellin) and syfA (encoding a non-ribosomal peptide synthetase involved in syringafactin biosynthesis) were suppressed with increasing temperature. RNA-seq revealed 1440 genes of the P. syringae genome are temperature sensitive in expression. Genes involved in polysaccharide synthesis and regulation, phage and IS elements, type VI secretion, chemosensing and chemotaxis, translation, flagellar synthesis and motility, and phytotoxin synthesis and transport were generally repressed at 30 °C, while genes involved in transcriptional regulation, quaternary ammonium compound metabolism and transport, chaperone/heat shock proteins, and hypothetical genes were generally induced at 30 °C. Deletion of flgM, a key regulator in the transition from class III to class IV gene expression, led to elevated and constitutive expression of fliC regardless of temperature, but did not affect thermo-regulation of syfA. This work highlights the importance of temperature in the biology of P. syringae, as many genes encoding traits important for plant-microbe interactions were thermo-regulated.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23527276/pdf/?tool=EBI |
| spellingShingle | Kevin L Hockett Adrien Y Burch Steven E Lindow Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae. PLoS ONE |
| title | Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae. |
| title_full | Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae. |
| title_fullStr | Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae. |
| title_full_unstemmed | Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae. |
| title_short | Thermo-regulation of genes mediating motility and plant interactions in Pseudomonas syringae. |
| title_sort | thermo regulation of genes mediating motility and plant interactions in pseudomonas syringae |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23527276/pdf/?tool=EBI |
| work_keys_str_mv | AT kevinlhockett thermoregulationofgenesmediatingmotilityandplantinteractionsinpseudomonassyringae AT adrienyburch thermoregulationofgenesmediatingmotilityandplantinteractionsinpseudomonassyringae AT stevenelindow thermoregulationofgenesmediatingmotilityandplantinteractionsinpseudomonassyringae |