FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2001552956> ?p ?o ?g. }

• W2001552956 endingPage "377" @default.
• W2001552956 startingPage "369" @default.
• W2001552956 abstract "BackgroundMany microorganisms, including myxobacteria, cyanobacteria, and flexibacteria, move by gliding. Although gliding always describes a slow surface-associated translocation in the direction of the cell's long axis, it can result from two very different propulsion mechanisms: social (S) motility and adventurous (A) motility. The force for S motility is generated by retraction of type 4 pili. A motility may be associated with the extrusion of slime, but evidence has been lacking, and how force might be generated has remained an enigma. Recently, nozzle-like structures were discovered in cyanobacteria from which slime emanated at the same rate at which the bacteria moved. This strongly implicates slime extrusion as a propulsion mechanism for gliding.ResultsHere we show that similar but smaller nozzle-like structures are found in Myxococcus xanthus and that they are clustered at both cell poles, where one might expect propulsive organelles. Furthermore, light and electron microscopical observations show that slime is secreted in ribbons from the ends of cells. To test whether the slime propulsion hypothesis is physically reasonable, we construct a mathematical model of the slime nozzle to see if it can generate a force sufficient to propel M. xanthus at the observed velocities. The model assumes that the hydration of slime, a cationic polyelectrolyte, is the force-generating mechanism.ConclusionsThe discovery of nozzle-like organelles in various gliding bacteria suggests their role in prokaryotic gliding. Our calculations and our observations of slime trails demonstrate that slime extrusion from such nozzles can account for most of the observed properties of A motile gliding. Many microorganisms, including myxobacteria, cyanobacteria, and flexibacteria, move by gliding. Although gliding always describes a slow surface-associated translocation in the direction of the cell's long axis, it can result from two very different propulsion mechanisms: social (S) motility and adventurous (A) motility. The force for S motility is generated by retraction of type 4 pili. A motility may be associated with the extrusion of slime, but evidence has been lacking, and how force might be generated has remained an enigma. Recently, nozzle-like structures were discovered in cyanobacteria from which slime emanated at the same rate at which the bacteria moved. This strongly implicates slime extrusion as a propulsion mechanism for gliding. Here we show that similar but smaller nozzle-like structures are found in Myxococcus xanthus and that they are clustered at both cell poles, where one might expect propulsive organelles. Furthermore, light and electron microscopical observations show that slime is secreted in ribbons from the ends of cells. To test whether the slime propulsion hypothesis is physically reasonable, we construct a mathematical model of the slime nozzle to see if it can generate a force sufficient to propel M. xanthus at the observed velocities. The model assumes that the hydration of slime, a cationic polyelectrolyte, is the force-generating mechanism. The discovery of nozzle-like organelles in various gliding bacteria suggests their role in prokaryotic gliding. Our calculations and our observations of slime trails demonstrate that slime extrusion from such nozzles can account for most of the observed properties of A motile gliding." @default.
• W2001552956 created "2016-06-24" @default.
• W2001552956 creator A5017454018 @default.
• W2001552956 creator A5024106887 @default.
• W2001552956 creator A5024357800 @default.
• W2001552956 creator A5045011057 @default.
• W2001552956 date "2002-03-01" @default.
• W2001552956 modified "2023-10-03" @default.
• W2001552956 title "How Myxobacteria Glide" @default.
• W2001552956 cites W1502937395 @default.
• W2001552956 cites W1512993758 @default.
• W2001552956 cites W1558407083 @default.
• W2001552956 cites W1593779850 @default.
• W2001552956 cites W1599748206 @default.
• W2001552956 cites W1663971532 @default.
• W2001552956 cites W1723744095 @default.
• W2001552956 cites W178338403 @default.
• W2001552956 cites W1878857055 @default.
• W2001552956 cites W1964568191 @default.
• W2001552956 cites W1969886111 @default.
• W2001552956 cites W1974219952 @default.
• W2001552956 cites W1985941150 @default.
• W2001552956 cites W1986790570 @default.
• W2001552956 cites W1994754091 @default.
• W2001552956 cites W2046305392 @default.
• W2001552956 cites W2047595824 @default.
• W2001552956 cites W2050977440 @default.
• W2001552956 cites W2051141334 @default.
• W2001552956 cites W2054099099 @default.
• W2001552956 cites W2061440509 @default.
• W2001552956 cites W2075416094 @default.
• W2001552956 cites W2098499600 @default.
• W2001552956 cites W2101902021 @default.
• W2001552956 cites W2112541177 @default.
• W2001552956 cites W2148839944 @default.
• W2001552956 cites W2149416129 @default.
• W2001552956 cites W24868577 @default.
• W2001552956 cites W4211022623 @default.
• W2001552956 cites W4241639332 @default.
• W2001552956 doi "https://doi.org/10.1016/s0960-9822(02)00716-9" @default.
• W2001552956 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11882287" @default.
• W2001552956 hasPublicationYear "2002" @default.
• W2001552956 type Work @default.
• W2001552956 sameAs 2001552956 @default.
• W2001552956 citedByCount "272" @default.
• W2001552956 countsByYear W20015529562012 @default.
• W2001552956 countsByYear W20015529562013 @default.
• W2001552956 countsByYear W20015529562014 @default.
• W2001552956 countsByYear W20015529562015 @default.
• W2001552956 countsByYear W20015529562016 @default.
• W2001552956 countsByYear W20015529562017 @default.
• W2001552956 countsByYear W20015529562018 @default.
• W2001552956 countsByYear W20015529562019 @default.
• W2001552956 countsByYear W20015529562020 @default.
• W2001552956 countsByYear W20015529562021 @default.
• W2001552956 countsByYear W20015529562022 @default.
• W2001552956 countsByYear W20015529562023 @default.
• W2001552956 crossrefType "journal-article" @default.
• W2001552956 hasAuthorship W2001552956A5017454018 @default.
• W2001552956 hasAuthorship W2001552956A5024106887 @default.
• W2001552956 hasAuthorship W2001552956A5024357800 @default.
• W2001552956 hasAuthorship W2001552956A5045011057 @default.
• W2001552956 hasBestOaLocation W20015529561 @default.
• W2001552956 hasConcept C104317684 @default.
• W2001552956 hasConcept C121332964 @default.
• W2001552956 hasConcept C12554922 @default.
• W2001552956 hasConcept C143065580 @default.
• W2001552956 hasConcept C1491633281 @default.
• W2001552956 hasConcept C168240541 @default.
• W2001552956 hasConcept C2777120639 @default.
• W2001552956 hasConcept C2777905271 @default.
• W2001552956 hasConcept C33682779 @default.
• W2001552956 hasConcept C523546767 @default.
• W2001552956 hasConcept C54355233 @default.
• W2001552956 hasConcept C55493867 @default.
• W2001552956 hasConcept C56200935 @default.
• W2001552956 hasConcept C58207958 @default.
• W2001552956 hasConcept C64745115 @default.
• W2001552956 hasConcept C74318829 @default.
• W2001552956 hasConcept C86803240 @default.
• W2001552956 hasConcept C95444343 @default.
• W2001552956 hasConcept C97355855 @default.
• W2001552956 hasConceptScore W2001552956C104317684 @default.
• W2001552956 hasConceptScore W2001552956C121332964 @default.
• W2001552956 hasConceptScore W2001552956C12554922 @default.
• W2001552956 hasConceptScore W2001552956C143065580 @default.
• W2001552956 hasConceptScore W2001552956C1491633281 @default.
• W2001552956 hasConceptScore W2001552956C168240541 @default.
• W2001552956 hasConceptScore W2001552956C2777120639 @default.
• W2001552956 hasConceptScore W2001552956C2777905271 @default.
• W2001552956 hasConceptScore W2001552956C33682779 @default.
• W2001552956 hasConceptScore W2001552956C523546767 @default.
• W2001552956 hasConceptScore W2001552956C54355233 @default.
• W2001552956 hasConceptScore W2001552956C55493867 @default.
• W2001552956 hasConceptScore W2001552956C56200935 @default.
• W2001552956 hasConceptScore W2001552956C58207958 @default.
• W2001552956 hasConceptScore W2001552956C64745115 @default.
• W2001552956 hasConceptScore W2001552956C74318829 @default.

• next