Host choice by larval parasites: a study of Biomphalaria glabrata snails and Schistosoma mansoni miracidia related to host size

1998 ◽  
Vol 84 (9) ◽  
pp. 727-732 ◽  
Author(s):  
A. Théron ◽  
A. Rognon ◽  
J.-R. Pagès
Keyword(s):  
Schistosoma Mansoni ◽  
Biomphalaria Glabrata ◽  
Host Choice ◽  
Host Size ◽  
Larval Parasites

Schistosoma mansoni – Biomphalaria glabrata: dynamics of the sporocyst population in relation to the miracidial dose and the host size

1993 ◽  
Vol 71 (9) ◽  
pp. 1880-1885 ◽  
Author(s):  
Claudia Gérard ◽  
Hélène Moné ◽  
André Théron
Keyword(s):  
Growth Rate ◽  
Schistosoma Mansoni ◽  
Digestive Gland ◽  
Biomphalaria Glabrata ◽  
Host Size ◽  
Regulatory Mechanisms ◽  
Density Dependent ◽  
Parasite Fitness ◽  
Intensive Exploitation ◽  
Rate Of Invasion

The rate of invasion of snails and percentage of the digestive gland occupied by daughter sporocysts decrease when the snails are larger and the miracidial dose is smaller. Growth of the sporocyst population is influenced not only by the miracidial dose, but also by the changes in the growth rate of the host. The larger the host and (or) the smaller the miracidial dose, the more significant is the volume occupied by the sporocyst population. Biomass- and (or) density-dependent regulatory mechanisms of different patterns intervene to limit the volume of parasites. Rapid colonisation and intensive exploitation of the host correspond to an immature plurimiracidial system, whereas progressive colonisation and less exploitation correspond to a mature monomiracidial system. The results are discussed in terms of possible demographic strategies that can be used to optimize parasite fitness in various environments.

scholarly journals Activities of naphthoquinones against Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae), vector of dengue and Biomphalaria glabrata (Say, 1818), intermediate host of Schistosoma mansoni

Acta Tropica ◽  
2009 ◽  
Vol 111 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Karlos A.L. Ribeiro ◽  
Cenira Monteiro de Carvalho ◽  
Maria Teresa Molina ◽  
Estelita Pereira Lima ◽  
Eulogio López-Montero ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Schistosoma Mansoni ◽  
Intermediate Host ◽  
Biomphalaria Glabrata

scholarly journals Early Differential Gene Expression in Haemocytes from Resistant and Susceptible Biomphalaria glabrata Strains in Response to Schistosoma mansoni

PLoS ONE ◽  
2012 ◽  
Vol 7 (12) ◽  
pp. e51102 ◽  
Author(s):  
Anne E. Lockyer ◽  
Aidan M. Emery ◽  
Richard A. Kane ◽  
Anthony J. Walker ◽  
Claus D. Mayer ◽  
...  
Keyword(s):  
Gene Expression ◽  
Schistosoma Mansoni ◽  
Differential Gene Expression ◽  
Biomphalaria Glabrata ◽  
Differential Gene
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