Phasmid (nematode anatomy)
Phasmids are sensilla in the lateral tail region of certain species of nematodes.[1] They are similar in their structure to amphid sensilla, but smaller.[2][3]: 154 One classification system for nematodes places nematodes with phasmids into class Secernentea and nematodes without phasmids into class Adenophorea.[4]: 74 Phasmid neurons were recently shown to function in modulation of chemorepulsion behavior in Caenorhabditis elegans.[5] In C. elegans, the right phasmid contains two sensory neurons, while the left contains three, protected by sheath and socket cells. The cilia of the dendrites of the PHA and PHB neurons project through the phasmid openings, while the PQR neuronal process present on the left side is wrapped by a socket cell.[3][4]: 76
References
[edit]- ^ P. De Ley; I.T. De Ley; L. Mundo; S. Esfahani; M. Mundo; S.A. Nadler; J.G. Baldwin (2000). "Nervous System". Nematology Through the Virtual Microscope. University of California Riverside vCenema. Retrieved 5 September 2024.
- ^ Schafer, William (24 October 2016). "Primer: Nematode nervous systems". Current Biology. 26 (20): R955–R959. doi:10.1016/j.cub.2016.07.044. PMID 27780068.
- ^ a b K.A. Wright (April 1983). "Nematode Chemosensilla: Form and Function". Journal of Nematology. 15 (2): 151–158. PMC 2618269. PMID 19295785.
- ^ a b O'Halloran, Damien M.; Fitzpatrick, David A.; Burnell, Ann M. (2006). "Chapter 6: The Chemosensory System of Caenorhabditis elegans and Other Nematodes". In Dicke, M.; Takken, W. (eds.). Chemical Ecology: From Gene to Ecosystem. Wageningen UR Frontis Series. Vol. 16. Springer. pp. 71–88. doi:10.1007/978-1-4020-5369-6_6. ISBN 978-1-4020-4783-1.
- ^ Hilliard, Massimo A.; Bargmann, Cornelia I.; Bazzicalupo, Paolo (2002). "C. elegans Responds to Chemical Repellents by Integrating Sensory Inputs from the Head and the Tail". Current Biology. 12 (9): 730–734. doi:10.1016/S0960-9822(02)00813-8. PMID 12007416.
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