Parasitic development of the mermithid nematode Reesimermis nielseni in the larval mosquito Aedes aegypti.

  title={Parasitic development of the mermithid nematode Reesimermis nielseni in the larval mosquito Aedes aegypti.},
  author={R. Gordon and C. H. Bailey and J. M. Barber},
  journal={Canadian journal of zoology},
  volume={52 11},
Newly hatched Aedes aegypti larvae were experimentally infected with controlled levels of infection of the mermithid nematode Reesimermis nielseni and the development of the parasite was recorded. The nematode increased in length by 18-fold and in width by 16-fold during a relatively short 6- to 8-day parasitic phase. Most of the nematode's growth was restricted to the latter half (3 days) of the infective period. A cuticularized tube, extending posteriorly from the stoma, was present… Expand
Romanomermis culicivorax parasitism and the development, growth, and feeding rates of two mosquito species.
Calculation of gross conversion efficiency (GCE) showed that lightly infected C. pipiens larvae had an elevated GCE early in the infection but were less efficient relative to controls after 4 days PI, and that lightly parasitized T. amboinensis had a lower total GCE than controls. Expand
Growth and Development of Romanomermis culicivorax In Vitro.
Slow and limited growth and development of internal structures of the nematodes were obtained with variously supplemented Grace's tissue culture and Schneider's Drosophila media and development attained after 3-4 wk was comparable to 4-5-day-old parasites grown in vivo in the mosquito host, Culex pipiens. Expand
Effects of Host Diet on Romanomermis culicivorax, a Mermithid Parasite of Mosquitoes.
When larval mosquitoes (Aedes aegypti) infected with the mermithid nematode Romanomermis culicivorax were fed on a diet low in quantity or protein content or both, the number of postparasites whichExpand
Body wall of juvenile and adult Gastromermis boophthorae (Nematoda: Mermithidae): Ultrastructure and nutritional role
Abstract During the life cycle of the mermithid nematode Gastromermis boophthorae the main components of the body wall, namely the cuticle, hypodermis and somatic musculature, undergo radical changesExpand
The comparative development of the cuticle of Romanomennis culicivorax in susceptible and resistant hosts
The development of Romanomennis culicivorax cuticle in the resistant host Toxorhyncites brevipalpis was studied ultrastrueturally and compared to that in the susceptible host Aedes aegypli, leading to the observed one parasitic and one post-parasi tic moults. Expand
Role of the surface coat of Romanomermis culicivorax in immune evasion
Interactions of the mermithid nematode Romanomermis culicivorax with the immune system of mosquito larvae were examined by scanning electron microscopy. The host immune system rapidly recognisedExpand
Lancaster & Bovill Aquatic Insects 2017
Mermithid nematodes are entomophagous parasites and, despite being present in diverse aquatic insects, studies of caddisflies acting as definitive hosts are few and the ecological impacts on hostExpand
Ultrastructure of the trophosome, a food-storage organ in Gastromermis boophthorae (Nematoda: Mermithidae)
The trophosome is linked to the hypodermis of the body wall by radially-orientated cytoplasmic bridges, and the possible significance of this arrangement is discussed in relation to the nutritional function of the trophOSome. Expand
Oxygen consumption in mosquito larvae parasitized by Romanomermis culicivorax (Nematoda).
  • K. Powers, E. Platzer
  • Biology, Medicine
  • Comparative biochemistry and physiology. A, Comparative physiology
  • 1984
It seems probable that the increased metabolic rate as reflected by oxygen consumption of the parasitized mosquito larve was principally a manifestation of the physiological and nutritional stress induced by the mermithid nematodes. Expand
Observations on the biology of Romanomermis sp. (Nematoda: Mermithidae) parasites of Aedes in western Wyoming.
Inter-specific variation in survival of infected larvae was associated with the degree to which immune responses were manifested in different host species, and distributions of parasites within host species were over-dispersed. Expand