The role of carbohydrates in the biology of cestodes VII. Interactions between individual tapeworms of the same and different species

Read, Clark P.; Phifer, Kenneth

doi:10.1016/0014-4894(59)90006-2

Cited by 26 publications

(7 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interspecific biomass-density effects have been demonstrated within genera (Alghali 1986) and among phyla (Holmes 1961, l962a, Holland 1987, but see Lang 1967. We expected that the biomass of some species would respond to competition because host nutrition influences biomass of some intestinal worms (e.g., Read and Rothman 1957, Read and Phifer 1959, Bundy and Golden 1987. Biomass is of special interest because of its potential relationship to fecundity (e.g., Lang 1967, LeJambre et al 1971, Whitlock et al 1972, Kino 1984, Keymer and Hiorns 1986, Barger 1987, especially in cestodes (e.g., Keymer et al 1983, Shostak and Dick 1987, but see Medley and Anderson 1985, Dobson 1986.…”

Section: Discussionmentioning

confidence: 99%

Gastrointestinal Helminth Communities of Bobwhite Quail

Moore

Simberloff

1990

Ecology

View full text Add to dashboard Cite

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.Abstract. We found 12 species of intestinal helminths in 158 Northern Bobwhites (Colinus virginianus) in northern Florida (1983)(1984). Of these, six species were common: the cestodes Raillietina cesticillus and R. colinia, the cecal nematodes Heterakis isolonche and Trichostrongylus tennis, the proventricular nematode Dispharynx nasuta, and the gizzard nematode Cyrnea colini. Four pairs of species had statistically significant numerical associations: the cestodes were negatively associated, and positive associations existed between the cecal nematodes, R. cesticillus-D. nasuta, and H. isolonche-C. colini. When either cecal nematode was present in high densities, H. isolonche shifted its location, indicating a possible negative interaction. There were some intraspecific relationships between cestode density and mean location, location variance, and biomass. In addition, R. cesticillus biomass was negatively correlated with R. colinia density. This community, while not characterized by high species richness, is readily colonized and exhibits evidence of inter-and intraspecific interaction. It does not conform to current models of parasite community structure.

show abstract

Section: Discussionmentioning

confidence: 99%

Gastrointestinal Helminth Communities of Bobwhite Quail

Moore

Simberloff

1990

Ecology

View full text Add to dashboard Cite

show abstract

“…PALMAS et al, 1985;ALGHALI & GRENCIS, 1986;FERRETTI et al, 1984). In many studies the effects were shown to be mediated through a specific cross-immunity, although competition for food (READ & PHIFER, 1959;HOLMES, 1961) or production by one species of an environment unsuitable for the other are also implicated (FERRETTI et al, 1984). It seemed of interest, in this context, to reexamine the interactions known to occur between H. nana and H. diminuta, 2 tapeworms which are closely related and which share antigens (COLEMAN et al, 1968).…”

Section: Discussionmentioning

confidence: 99%

Specific cross-immunity betweenHymenolepis nanaandH. diminuta: immunization with heterologous and homologous light infections

1988

View full text Add to dashboard Cite

The consequences of previous and concurrent infection with two related species of cestodes, Hymenolepis nana and H. diminuta, were studied in CD1 mice. A H. diminuta infection strongly affected the establishment and the survival of a secondary H. nana egg or cyst infection administered 30 days later. An infection of 20 H. nana eggs strongly protected against a 5-cyst H. diminuta challenge, whereas an infection of 10 H. nana cysts was ineffective; 20 H. nana eggs also protected against a challenge with 5 cysts of H. diminuta administered 5 days later. No effects were observed in either parasite during a concurrent infection established by administration of cysts. An H. nana egg-infection was unable to affect the establishment of a secondary H. nana cyst-infection given 1 month later; however a significant decrease in growth was found. Similar results were found when a primary H. nana egg-infection was followed 5 days later by the homologous cyst-infection. But an infection with 5 H. nana cysts was unable to protect against a homologous challenge of 5 cysts or 20 eggs. The reciprocal cross immunity between the heterologous parasites and the failure of protection of homologous challenges are discussed in relation to light infections.

show abstract

“…This delicate balance can be disrupted by unfavourable conditions such as hibernation (Ford, 1972), anthelmintic treatment (Hopkins, Grant & Stallard, 1973) and/or by the induction and expression of host immunological responses (Gray, 1973;Befus, 1975a;Howard, 1976a;Alghali, 1980). Infection of a single host with two related tapeworms is of interest, in that the two parasite populations may interact directly in competition for food (Read & Phifer, 1959) and/or location specificity signals (Hopkins & Allen, 1979). An established infection may inhibit a challenge, be it homologous or heterologous, by limiting the establishment, growth or survival of the challenge, probably via an immune-mediated mechanism (Befus, 19756;Howard, Christie, Wakelin, Wilson & Behnke, 1978;Elowni, 1980;Hopkins, 1980).…”

Section: Introductionmentioning

confidence: 99%

Immunity to tapeworms: intraspecific cross-protective interactions betweenHymenolepis citelli, H. diminutaandH. microstomain mice

Alghali

Grencis

1986

Parasitology

View full text Add to dashboard Cite

Interactions between tapeworm species in a single host offer intriguing opportunities for immunological studies that attempt to identify the mechanism(s) underlying protection against cestode infections. Mice that are immunized against Hymenolepis citelli infections were shown to be refractory to subsequent H. diminuta challenge infections. The reciprocity of the response was also demonstrated, although the protection recorded for H. diminuta when mice are sensitized with H. citelli is weaker than that observed when mice are primed with H. diminuta against H. citelli challenge. H. citelli was also shown to be expelled simultaneously during the rejection phase of H. diminuta in concurrent infections, indicating the susceptibility of the former tapeworm to the rejection mechanism initiated by the latter. H. microstoma-immunized mice were shown to be strongly protected against heterologous H. citelli challenge. However, mice primed against H. citelli were not as strongly protected against H. microstoma challenge infections: a statistically significant protection was obtained only after a 12-cysticercoid H. citelli primary infection, although a 6-cyst infection did stunt the growth of H. microstoma challenge worms. It is presently suggested that the cross-protective responses observed in the study between H. citelli, H. diminuta and H. microstoma may have emanated from a specific immunological cross-reactivity due to the sharing of similar immunogens.

show abstract

The role of carbohydrates in the biology of cestodes VII. Interactions between individual tapeworms of the same and different species

Cited by 26 publications

References 6 publications

Gastrointestinal Helminth Communities of Bobwhite Quail

Gastrointestinal Helminth Communities of Bobwhite Quail

Specific cross-immunity betweenHymenolepis nanaandH. diminuta: immunization with heterologous and homologous light infections

Immunity to tapeworms: intraspecific cross-protective interactions betweenHymenolepis citelli, H. diminutaandH. microstomain mice

Contact Info

Product

Resources

About