Propagation of impulse in the heart of the beetle allomyrina dichotomus

Ebara, Arinobu; Hatsumi, Akiyama; Yamagishi, Hiroshi; Ohshima, Hisashi

doi:10.1016/0300-9629(90)90134-e

Cited by 3 publications

References 22 publications

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Invertebrate Circulatory Systems

McMahon

Wilkens

Smith

1997

Comprehensive Physiology

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The sections in this article are: Protozoa and Parazoa Cnidaria Platyhelminthes Nemerteans Annelids Polychaetes and Oligochaetes Hirudinea Molluscs Heart and Vascular Performance Arthropods I: Onychophorans Arthropods II : Chelicerates Limulus Scorpions Spiders Arthropods III : Uniramia Myriapods Chilopods Insects Arthropods IV : Crustaceans Echinoderms Pogonophora Vestimentifera Hemichordates Urochordates Cephalochordates Conclusion

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Invertebrate Circulatory Systems

McMahon

Wilkens

Smith

1997

Comprehensive Physiology

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Fatty acid composition ofEchinostoma trivolvis (Trematoda) rediae and adults and of the digestive gland-gonad complex ofHelisoma trivolvis (Gastropoda) infected with the intramolluscan stages of this echinostome

et al. 1993

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Gas-liquid chromatographic studies were done to determine the fatty acid composition of the digestive gland-gonad (DGG) complex of Helisoma trivolvis snails infected with the intramolluscan stages of Echinostoma trivolvis, of rediae freed from the DGG, of uninfected DGG, and of 41-day-old adult worms grown in golden hamsters. The DGG of infected snails showed significantly higher levels of stearic acid (18:0), hexatrienoic acid (16:3n-4), and docosahexanoic acid (22:6n-3) than that of uninfected snails. However, the DGG of uninfected snails showed significantly higher levels of 20:2 non-methylene-interrupted diene (NMID) and adrenic acid (22:4n-6) than that of infected snails. The profiles of other fatty acids were remarkably similar in both infected and uninfected snails. Adult worms showed significantly higher amounts of numerous saturated fatty acids and dienes as compared with the rediae. However, the rediae showed significantly higher amounts of certain monoenes and trienes as compared with the adults. Fatty acid differences between rediae and adults probably reflect differences in either the available lipid pools in the immediate host sites or the metabolic activity of each stage of this echinostome.

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Effects of Echinostoma trivolvis (trematoda) infection on metallic ions in the host snail Helisoma trivolvis (gastropoda)

Layman

Dory

Koehnlein³

et al. 1996

Parasitol Res

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Flame and graphite-furnace atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry were used to study the metallic ions in the digestive gland-gonad complex (DGG) of Helisoma trivolvis snails infected with the daughter rediae of Echinostoma trivolvis and in uninfected DGG. Seven metals were found to be present in infected and uninfected DGG at concentrations above the detection limits of the analytical methods. Of these, sodium was present in significantly higher amounts (Student's t-test, confidence level of 95%) in the infected versus uninfected DGG; magnesium and manganese occurred in significantly lower amounts in the infected DGG. Our results were compared with those from a Bulgarian study in which neutron activation analysis was used to determine elements in Lymnaea stagnalis snails infected with the intramolluscan stages of the 37-collar-spined echinostome E. revolutum. The Bulgarian study also reported a significant elevation of sodium but reduction of zinc in the hepatopancreas (i.e., digestive gland) of infected snails. Other differences between the two studies are discussed.

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Propagation of impulse in the heart of the beetle allomyrina dichotomus

Cited by 3 publications

References 22 publications

Invertebrate Circulatory Systems

Invertebrate Circulatory Systems

Fatty acid composition ofEchinostoma trivolvis (Trematoda) rediae and adults and of the digestive gland-gonad complex ofHelisoma trivolvis (Gastropoda) infected with the intramolluscan stages of this echinostome

Effects of Echinostoma trivolvis (trematoda) infection on metallic ions in the host snail Helisoma trivolvis (gastropoda)

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