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Keywords: nematode
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Journal Articles
J Exp Biol (2020) 223 (15): jeb224691.
Published: 06 August 2020
...Yuki Suzuki; Kenji Kikuchi; Keiko Numayama-Tsuruta; Takuji Ishikawa ABSTRACT The nematode Caenorhabditis elegans is a filter feeder that lives in various viscous habitats such as soil, the intestines of slugs, and rotting materials such as fruits and stems. Caenorhabditis elegans draws...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (19): jeb184838.
Published: 04 October 2018
... considers how to classify and name these heterologously expressed receptors and compares their pharmacological properties. 5-Hydroxytryptamine 5-HT G-protein-coupled receptor Insect Nematode An additional receptor, MOD-1, is a serotonin-gated ion channel found in C. elegans...
Includes: Supplementary data
Journal Articles
In collection:
Neuroethology
J Exp Biol (2018) 221 (15): jeb178947.
Published: 03 August 2018
... or vibration. Here, we tested the hypothesis that the nematode worm Caenorhabditis elegans exhibits a behavioural response to vibration that is distinct from its responses to touch. We show that wild-type strain worms respond to sustained low-frequency vibration in a manner distinct from the known responses...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (18): 3238–3247.
Published: 15 September 2017
...Tess Renahan; Ray L. Hong ABSTRACT Nematode–insect interactions are ubiquitous, complex and constantly changing as the host and nematode coevolve. The entomophilic nematode Pristionchus pacificus is found on a myriad beetle species worldwide, although the molecular dynamics of this relationship...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (23): 4119–4122.
Published: 01 December 2014
... regions of the worm posterior to the pore, suggesting that the hypodermis is a site of Na + uptake from the bathing medium. C. elegans is a soil nematode which may be exposed to Na + -poor soil water. Under such conditions uptake of Na + across the hypodermis may be an important contributor to Na...
Journal Articles
J Exp Biol (2012) 215 (7): 1178–1183.
Published: 01 April 2012
...Yuya Kiyama; Kohji Miyahara; Yasumi Ohshima SUMMARY Feeding and food choice are crucial to the survival of an animal. The nematode Caenorhabditis elegans feeds on various microorganisms in nature, and is usually fed Escherichia coli in the laboratory. To elucidate the mechanisms of food/non-food...
Journal Articles
J Exp Biol (2010) 213 (18): 3223–3229.
Published: 15 September 2010
... that this nematode and its natural bacterial associate can penetrate, kill and reproduce in an insect host and that the bacterial associate can induce this insect pathogenic life cycle in other Caenorhabditis species, including C. elegans . Our findings suggest that this life history may be widespread in nature...
Includes: Supplementary data
Journal Articles
J Exp Biol (2010) 213 (12): 2025–2030.
Published: 15 June 2010
...David A. Wharton SUMMARY A technique for determining the internal osmotic concentration of a small nematode using a modified nanolitre osmometer is described and used to investigate osmoregulation in the Antarctic nematode Panagrolaimus davidi . This technique enables the osmotic concentration...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2007) 210 (13): 2383–2389.
Published: 01 July 2007
...Jeremie Korta; Damon A. Clark; Christopher V. Gabel; L. Mahadevan; Aravinthan D. T. Samuel SUMMARY Animals move through their environments by selecting gaits that are adapted to the physical nature of their surroundings. The nematode Caenorhabditis elegans swims through fluids or crawls on surfaces...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2006) 209 (10): 1859–1873.
Published: 15 May 2006
...Jing-Tzyh Alan Chiang; Mark Steciuk; Boris Shtonda; Leon Avery SUMMARY To explore the use of Caenorhabditis elegans and related nematodes for studying behavioral evolution, we conducted a comparative study of pharyngeal behaviors and neuronal regulation in free-living soil nematodes. The pharynx...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2005) 208 (24): 4727–4733.
Published: 15 December 2005
.... * Author for correspondence (e-mail: jonp@egcrc.net ) 17 10 2005 © The Company of Biologists Limited 2005 2005 chemotaxis orientation locomotion nematode behavioral modeling Caenorhabditis elegans In a radial gradient of chemical attractant, wild-type nematodes...
Journal Articles
J Exp Biol (2005) 208 (12): 2433–2445.
Published: 15 June 2005
...Adam J. Shannon; John A. Browne; Jacqueline Boyd; David A. Fitzpatrick; Ann M. Burnell SUMMARY Members of the genus Panagrolaimus are bacterial-feeding nematodes that occupy a diversity of niches ranging from Antarctic and temperate soils to terrestrial mosses. Some members of this genus are able...
Journal Articles
J Exp Biol (2003) 206 (14): 2441–2457.
Published: 15 July 2003
... positions; when the motion is finished, they are seen to be located more posteriorly than they were before it started. This posteriorward transport is of course essential for the function of the pharynx, moving food from the mouth to the intestine. Like many soil nematodes, Caenorhabditis elegans...
Journal Articles
J Exp Biol (2003) 206 (2): 223–231.
Published: 15 January 2003
...@utsouthwestern.edu ) serotonin nematode Caenorhabditis elegans gramine octopamine action potential motor neuron feeding pharynx The C. elegans pharynx is a neuromuscular organ responsible for ingestion of bacteria, the worm's food. Rhythmic contraction and relaxation of the pharyngeal muscle...
Journal Articles
J Exp Biol (2003) 206 (2): 215–221.
Published: 15 January 2003
...David A. Wharton; Gordon Goodall; Craig J. Marshall SUMMARY The relative importance of freezing tolerance and cryoprotective dehydration in the Antarctic nematode Panagrolaimus davidi has been investigated. If nucleation of the medium is initiated at a high subzero temperature (-1°C), the nematodes...
Journal Articles
J Exp Biol (2002) 205 (24): 3955–3965.
Published: 15 December 2002
...Deborah M. Kristan SUMMARY Sublethal parasites are often assumed to have no detrimental effects on their host. However, the sublethal intestinal nematode Heligmosomoides polygyrus affects both the morphology and the physiology of its laboratory mouse ( Mus musculus ) host and therefore has...
Journal Articles
J Exp Biol (2002) 205 (24): 3967–3977.
Published: 15 December 2002
...Deborah M. Kristan SUMMARY The laboratory mouse ( Mus musculus ) has a naturally occurring intestinal nematode ( Heligmosomoides polygyrus ) that induces an immune response, causes phenotypic plasticity in metabolism and in organ structure and function, and results in changes in host reproductive...
Journal Articles
J Exp Biol (2002) 205 (24): 3979–3988.
Published: 15 December 2002
... =5) or 85% of the control. H-7 did not induce a statistically significant effect on the response to either compound( Table 1 ). These observations suggest that PKA, PKC and PKG do not have a modulatory effect on nematode nAChRs. Table 1. Summary of the effects of kinase antagonists on peak...
Journal Articles
J Exp Biol (1991) 158 (1): 509–530.
Published: 01 July 1991
...L. COLQUHOUN; L. HOLDEN-DYE; R. J. WALKER 1. Acetylcholine (ACh) elicited depolarization and an increase in input conductance of the somatic muscle cells of the parasitic nematode Ascaris suum . 2. The relative potency of nicotinic and muscarinic agents was studied in this preparation. The order...
Journal Articles
J Exp Biol (1991) 155 (1): 629–641.
Published: 01 January 1991
...D. A. WHARTON; I. M. BROWN When free of surface water in air or liquid paraffin, the antarctic nematode Panagrolaimus davidi is freezing intolerant but avoids freezing by supercooling. Survival of long-term exposure is enhanced by sub-zero temperatures compared with controls maintained at 99...