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3 edition of Olfactory plasticity in Caenorhabditis elegans found in the catalog.

Olfactory plasticity in Caenorhabditis elegans

Olfactory plasticity in Caenorhabditis elegans

a separationof adaptation and habituation.

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  • 18 Currently reading

Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

Thesis (M.Sc.) -- University of Toronto, 1999.

SeriesCanadian theses = -- Thèses canadiennes
The Physical Object
FormatMicroform
Pagination1 microfiche : negative. --
ID Numbers
Open LibraryOL19925010M
ISBN 100612458768

MECHANISMS OF OLFACTORY PLASTICITY. IN. CAENORHABDITIS ELEGANS. A Thesis Presented to the Faculty of. The Rockefeller University. in Partial Fulfillment of the Requirements for. the degree of Doctor of Philosophy. by. Christine Cho. June Population density-dependent dispersal is a well-characterized strategy of animal behavior in which dispersal rate increases when population density is higher. Caenorhabditis elegans shows positive chemotaxis to a set of odorants, but the chemotaxis switches from attraction to dispersal after prolonged exposure to the odorants. We show here that this plasticity of olfactory behavior is.

Voltage-dependent anion channel (VDAC-1) is required for olfactory sensing in Caenorhabditis elegans Takayuki Uozumi1, Masayuki Hamakawa1, Yu-ki Deno1, Nobushige Nakajo1,2 and Takaaki Hirotsu1,2,3* 1Graduate School of Systems Life Sciences, Kyushu University, Hakozaki, Higashi-ku, Fukuoka , Japan 2Department of Biology, Graduate School of Sciences, Kyushu .   The nematode Caenorhabditis elegans, whose nervous system is composed of neurons, shows robust plasticity in olfactory, mechanosensory, thermosensory, and gustatory behaviors (Colbert et al., ; Rankin, ; Hedgecock and Russell, ; Saeki et al., ). Olfaction may be its most complex sense.

Olfaction Modulates Reproductive Plasticity through Neuroendocrine Signaling in Caenorhabditis elegans Reproductive plasticity describes the ability of organisms to adjust parameters such as volume, rate, or timing of progeny production in order to maximize successful .   Neuropeptide-Driven Cross-Modal Plasticity following Sensory Loss in Caenorhabditis elegans Touch-sensing neurons in the nematode Caenorhabditis elegans secrete neuropeptides to suppress olfaction via a specific synapse in the olfactory circuit. Loss of touch releases this suppression, enhancing the sense of smell.


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Olfactory plasticity in Caenorhabditis elegans Download PDF EPUB FB2

Caenorhabditis elegans shows positive chemotaxis to a set of odorants, but the chemotaxis switches from attraction to dispersal after prolonged exposure to the odorants Cited by: Olfactory Plasticity Is Regulated by Pheromonal Signaling Caenorhabditis elegans These findings suggest that K5+ progenitor cells express both M1 and by:   Interestingly, AWC are key olfactory neurons in C.

elegans with bilateral asymmetry by expressing different recept The action of daf in Cited by: 1. be able to study plasticity in even finer detail, we have used the nematode Caenorhabditis elegans.

elegans in neurobiology Because many biological processes have been conserved from worm to man, the nematode Caenorhabditis elegans has been used. Description An updated edition of the classic Methods in Cell Biology vol this book emphasizes diverse methods and technologies needed to investigate C.

elegans, both as an integrated organism. Bernhard, N. & van der Kooy, D. A behavioural and genetic dissection of two forms of olfactory plasticity in Caenorhabditis elegans: adaptation and habituation.

Learn. Mem. Results and Discussion. As soil-dwelling nematodes, C. elegans experience their diet of bacteria as a source of both sensory and nutritional inputs from the environment. To test whether C. elegans responds to environmental variations with different reproductive strategies, we examined the reproductive lifespan of wild-type C.

elegans feeding on different bacterial diets, including. DOI: /ncomms Corpus ID: Odour concentration-dependent olfactory preference change in C.

elegans. @article{YoshidaOdourCO, title={Odour concentration-dependent olfactory preference change in C. elegans.}, author={Kazushi Yoshida and Takaaki Hirotsu and Takanobu Tagawa and Shigekazu Oda and Tokumitsu Wakabayashi and Yuichi Iino and Takeshi Ishihara}.

Here we report that Ce‐ TBX‐2, the TBX2/TBX3 transcriptional factor homologue of the nematode Caenorhabditis elegans, is involved in olfactory adaptation.

Two missense hypomorphic mutations in this gene confer abnormality in adaptation, but not chemotaxis, to all the odorants sensed by AWC olfactory neurons. the stimuli detected by the olfactory system and the perception of those stimuli.

The nematode Caenorhabditis elegans demonstrates behav-ioral plasticity in response to its environment and as part of a developmental program.

elegans is exquisitely sensitive to chemical, thermal, and mechanical stimuli and alters its re. Insulin signaling plays a prominent role in regulation of dauer formation and longevity in Caenorhabditis elegans.

Here, we show that insulin signaling also is required in benzaldehyde–starvation associative plasticity, in which worms pre-exposed to the odor attractant benzaldehyde in the absence of food subsequently demonstrate a conditioned aversion response.

C. elegansalso shows other types of plasticity in its response to sensory stimuli. Of particular interest is salt chemotaxis plasticity, another well-described behavioral plasticity paradigm in C.

elegans, which shows similar characteristics to olfactory adaptation. ii Studies in Caenorhabditis elegans Olfaction and Learning Daniel Merritt Master of Science Institute of Medical Science University of Toronto Abstract Olfactory processes have been extensively studied in the nematode worm Caenorhabditis elegans, but much remains unclear regarding both the initial steps of olfactory signal discrimination and.

Caenorhabditis elegans, rejection of pathogenic food is a learnt behavior (Zhang et al., a). It takes about 4 h for animals to learn to avoid pathogenic bacteria.

Similarly, preference for good quality food over hard to eat food develops over time in C. elegans (Shtonda and Avery, ), suggesting that the animals make their. Behavioral plasticity induced by the integration of two sensory signals, such as associative learning, is an important issue in neuroscience, but its evolutionary origin and diversity have not been explored sufficiently.

We report here a new type of such behavioral plasticity, which we call butanone enhancement, in Caenorhabditis elegans adult hermaphrodites: C. elegans specifically enhances. To learn how olfactory plasticity is regulated, we screened for mutants defective in the plasticity of chemotaxis to benzaldehyde.

Genetic fine mapping and rescue experiments revealed that one of the mutants, pe, had a mutation in a splicing acceptor of the nep-2 gene, which encodes a C. elegans homologue of the mammalian peptidase family neprilysin (Fig.

2, A to C, fig. S2, S3, S6A Cited by:   The Caenorhabditis elegans Tubby homolog dynamically modulates olfactory cilia membrane mechanism underlying cell- and context-dependent ciliary morphological and functional diversification in a subset of C.

elegans olfactory neurons This plasticity is particularly critical in neurons which must continuously modulate their properties in.

Caenorhabditis elegans uses olfaction as one of its primary means to sense the quality of its environment throughout its life span.

Accordingly, the animal displays experience-dependent plasticity in olfactory sensorimotor responses at different life stages. Contribution of the cyclic nucleotide gated channel subunit, CNG-3, to olfactory plasticity in Caenorhabditis elegans Sci Rep. Mar 13;7(1) doi: /sCited by: Regulators of AWC-Mediated Olfactory Plasticity in Caenorhabditis elegans Damien M.

O’Halloran1, Svetlana Altshuler-Keylin1.¤a, Jin I. Lee1.¤b, Noelle D. L’Etoile1,2* 1Center for Neuroscience, University of California Davis, Davis, California, United States of America, 2Department of Psychiatry and Behavioral Sciences University of. The NCLX-type Na + /Ca 2+ exchanger NCX-9 is required for patterning of neural circuits in Caenorhabditis elegans.

Sharma et al. Contribution of the cyclic nucleotide gated channel subunit, CNG-3, to olfactory plasticity in Caenorhabditis elegans. O'Halloran et al. fastQ_brew: module for analysis, preprocessing, and reformatting of. Sensory neurons in Caenorhabditis elegans.

Caenorhabditis elegans has a simple sensory system, consisting of 60 ciliated sensory neurons that sense chemical, olfactory, thermal and mechanical stimuli and relative position of the body (proprioception). Three groups of sensory neurons participate in the identification of chemical cues, the amphids and the inner labial neurons in the head.Abstract.

Over the past 10 years, the relevance of small-molecule signaling for many aspects of C. elegans development and behavior has become apparent. One prominent group of small-molecule signals are the ascarosides, which control dauer entry and exit as well as a variety of sex-specific and social behaviors, including male attraction, hermaphrodite repulsion, olfactory plasticity, and.