The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.
Food transport in the C. elegans pharynx
Open accessAbstract
SUMMARY: Pumping of the C. elegans pharynx transports food particles(bacteria) posteriorly. We examined muscle motions to determine how this posterior transport is effected. We find that the motions of the middle section of the pharynx, the anterior isthmus, are delayed relative to the anterior section, the corpus. Simulations in which particles are assumed to move at mean fluid velocity when not captured by the walls of the pharyngeal lumen show that delayed isthmus motions do indeed cause net particle transport; however, the amount is much less than in the real pharynx. We propose that the geometry of the pharyngeal lumen forces particles to the center, where they move faster than mean fluid velocity. When this acceleration is incorporated into the simulation, particles are transported efficiently. The transport mechanism we propose explains past observations that the timing of muscle relaxation is important for effective transport. Our model also makes a prediction, which we confirm, that smaller bacteria are better food sources for C. elegans than large ones.
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Cites
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Life in moving fluids: the physical biology of flow
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The pharynx of Caenorhabditis elegans
Albertson, D. G., & Thompson, J. N. (1976) · Philosophical Transactions of the Royal Society of London. B, Biological Sciences · doi:10.1098/rstb.1976.0085 · Cited by 649 · cited 4×
“·6 of Albertson and Thomson (1976), a section through the isthmus, and application of the same calculations to the adult isthmus and to the L1 isthmus and procorpus (assuming that the ratio of lumen diameter to pharynx outer diameter is the same in L1s as in adults) give rise to the estimates in…”
BackgroundMethodInfluentialThe genetics of feeding in Caenorhabditis elegans.
Avery, L. (1993) · Genetics · doi:10.1093/genetics/133.4.897 · Cited by 500
Self-citationEmmons, S. W., Klass, M. R., & Hirsh, D. (1979) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.76.3.1333 · Cited by 382
Effects of starvation and neuroactive drugs on feeding in Caenorhabditis elegans
Avery, L., & Horvitz, H. R. (1990) · Journal of Experimental Zoology · doi:10.1002/jez.1402530305 · Cited by 361
Self-citationDent, J. A., Davis, M. W., & Avery, L. (1997) · The EMBO Journal · doi:10.1093/emboj/16.19.5867 · Cited by 352
Self-citationPharyngeal pumping continues after laser killing of the pharyngeal nervous system of C. elegans
Avery, L., & Horvitzt, H. R. (1989) · Neuron · doi:10.1016/0896-6273(89)90206-7 · Cited by 349
Self-citationLee, R. Y. N., Sawin, E. R., Chalfie, M., Horvitz, H. R., & Avery, L. (1999) · The Journal of Neuroscience · doi:10.1523/jneurosci.19-01-00159.1999 · Cited by 347
Self-citation
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Dietary choice behavior in Caenorhabditis elegans
Shtonda, B. B., & Avery, L. (2006) · Journal of Experimental Biology · doi:10.1242/jeb.01955 · Cited by 431
Self-citationRictor/TORC2 regulates fat metabolism, feeding, growth, and life span in Caenorhabditis elegans
Soukas, A. A., Kane, E. A., Carr, C. E., Melo, J. A., & Ruvkun, G. (2009) · Genes & Development · doi:10.1101/gad.1775409 · Cited by 380
Uncoupling lifespan and healthspan in Caenorhabditis elegans longevity mutants
Bansal, A., Zhu, L. J., Yen, K., & Tissenbaum, H. A. (2015) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1412192112 · Cited by 367
McGhee, J. (2007) · WormBook · doi:10.1895/wormbook.1.133.1 · Cited by 324
An elegant mind: Learning and memory in Caenorhabditis elegans
Ardiel, E. L., & Rankin, C. H. (2010) · Learning & Memory · doi:10.1101/lm.960510 · Cited by 323
Metadata
- Authors
- Avery, L., & Shtonda, B. B.
- Venue
- Journal of Experimental Biology
- Publisher
- The Company of Biologists
- Published
- 2003-07-15
- Volume
- 206
- Issue
- 14
- Pages
- 2441-2457
- ISSN
- 0022-0949 (ISSN-L)
- 1477-9145
- OpenAlex
- W2068203855
- Cited by
- 260
- References
- 19
- FWCI
- 3.87
- Type
- journal article
- Language
- en
- Open access
- bronze
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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