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Keywords: nematode
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Journal Articles
J Exp Biol (2020) 223 (15): jeb224691.
Published: 6 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: 4 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 Serotonin (5-hydroxytryptamine, 5-HT; see Glossary) and its receptors (see Glossary) form one...
Includes: Supplementary data
Journal Articles
In collection:
Neuroethology
J Exp Biol (2018) 221 (15): jeb178947.
Published: 3 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: 1 December 2014
... the data. A.A., D.W. and M.J.O. wrote the manuscript. Competing interests The authors declare no competing financial interests. 12 8 2014 1 10 2014 © 2014. Published by The Company of Biologists Ltd 2014 Nematode Excretory cell Hypodermis Ion-selective microelectrodes...
Journal Articles
J Exp Biol (2012) 215 (7): 1178–1183.
Published: 1 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: 1 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
... © 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 Caenorhabditis elegans reach the gradient peak by moving almost directly up...
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
... mutants on 14 different bacterial strains. The bacteria are listed in order of decreasing eat-2 growth rate. Above are photographs of each of the bacterial strains as they appear when isolated from lawns on nematode growth medium. The scale bar applies to all pictures. In addition, 0.8 μm blue-dyed...
Journal Articles
J Exp Biol (2003) 206 (2): 223–231.
Published: 15 January 2003
... from pharyngeal muscle and is functionally defective. * Author for correspondence (e-mail: tim.niacaris@utsouthwestern.edu ) 21 10 2002 © The Company of Biologists Limited 2003 2003 serotonin nematode Caenorhabditis elegans gramine octopamine action potential motor...
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
... are interested in the mechanisms by which parasitic nematodes become resistant to anthelmintic drugs. The mechanisms that underlie resistance may be more complex in helminths than in viruses and bacteria, in part because of the larger genome of these pathogens. We have focused our attention on the drug...
Journal Articles
J Exp Biol (1991) 155 (1): 629–641.
Published: 1 January 1991
...D. A. Wharton; I. M. Brown ABSTRACT 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...
Journal Articles
J Exp Biol (1989) 145 (1): 353–369.
Published: 1 September 1989
...D. A. Wharton; G. S. Allan ABSTRACT All free-living stages of the nematode parasite of sheep, Trichostrongylus colubriformis Giles, survived exposure to freezing temperatures in contact with water, with the exception of the first-stage juvenile (JI). The third-stage juvenile (J3) was the most...