Results 91 to 100 of about 432 (139)
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Journal of Parasitology, 2001
Among the large cells located in the posterior of Echinostoma caproni and E. paraensei miracidia are secretory cells, germinal cells (GC), and undifferentiated cells. Secretory cells do not give rise to progeny, whereas GC do. Undifferentiated cells develop into GC that can also divide to produce embryos. Cleavage of GC of E.
G L, Ataev +3 more
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Among the large cells located in the posterior of Echinostoma caproni and E. paraensei miracidia are secretory cells, germinal cells (GC), and undifferentiated cells. Secretory cells do not give rise to progeny, whereas GC do. Undifferentiated cells develop into GC that can also divide to produce embryos. Cleavage of GC of E.
G L, Ataev +3 more
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International Journal for Parasitology, 1991
The infectivity and distribution of Echinostoma trivolvis were studied in female ICR mice each infected with 25 metacercarial cysts. At 7 and 10 days post-exposure worm recoveries were 58.8 and 58.4%, respectively. Worm recovery declined to 38.2% by day 14, to 6.4% by day 21, and 0% by day 28.
M S, Weinstein, B, Fried
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The infectivity and distribution of Echinostoma trivolvis were studied in female ICR mice each infected with 25 metacercarial cysts. At 7 and 10 days post-exposure worm recoveries were 58.8 and 58.4%, respectively. Worm recovery declined to 38.2% by day 14, to 6.4% by day 21, and 0% by day 28.
M S, Weinstein, B, Fried
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The Journal of Parasitology, 1991
Laboratory-reared planarians, Dugesia tigrina, were exposed to cercariae of Echinostoma trivolvis or Echinostoma caproni. Of 100 D. tigrina exposed to 2,750 cercariae of E. trivolvis, 29 were infected with a total of 85 encysted metacercariae 24 hr postinfection (PI). None of 40 D. tigrina exposed to 1,100 cercariae of E.
B, Fried, L C, Rosa-Brunet
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Laboratory-reared planarians, Dugesia tigrina, were exposed to cercariae of Echinostoma trivolvis or Echinostoma caproni. Of 100 D. tigrina exposed to 2,750 cercariae of E. trivolvis, 29 were infected with a total of 85 encysted metacercariae 24 hr postinfection (PI). None of 40 D. tigrina exposed to 1,100 cercariae of E.
B, Fried, L C, Rosa-Brunet
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The Journal of Parasitology, 1991
An isoenzymatic analysis using thin-layer agarose gel isoelectrofocusing on laboratory strains of Echinostoma trivolvis and Echinostoma caproni adults showed characteristic monomorphic phenotypes for phosphoglucomutase and glucose phosphate isomerase.
A R, Kristensen, B, Fried
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An isoenzymatic analysis using thin-layer agarose gel isoelectrofocusing on laboratory strains of Echinostoma trivolvis and Echinostoma caproni adults showed characteristic monomorphic phenotypes for phosphoglucomutase and glucose phosphate isomerase.
A R, Kristensen, B, Fried
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The Biology of the Intestinal Trematode Echinostoma caproni
1996Publisher Summary This chapter introduces the biology of the intestinal trematode, Echinostoma cuproni, a good digenean to work with because it can be easily cycled in the laboratory between the medically important planorbid snail, Biomphuluriu glubrutu and laboratory mice or hamsters, the same hosts that are used to maintain, Schistosomu munsoni ...
B, Fried, J E, Huffman
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The Effects of Light Intensity on Hatching of Echinostoma caproni Miracidia
The Journal of Parasitology, 1996Egg cultures of Echinostoma caproni were exposed to 25-W incandescent light at control intensities (9.7 mumol s-1 m-2) and reduced intensities (1.0, 0.5, 0.25, 0.125, 0.06, 0.03, and 0.01 mumol s-1 m-2). Low intensities of light did not affect the diurnal hatching rhythm of the miracidia, with maximum hatching occurring from 1200 to 1300 hr.
B A, Markum, P M, Nollen
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Longevity ofEchinostoma caproniin Balb/c mice
Journal of Helminthology, 2008AbstractThis study used Balb/c mice to examine the longevity ofEchinostoma caproni. Five mice each exposed to 75 encysted metacercariae (cysts) were necropsied at 23 weeks postinfection (PI) (160 days PI). Two of the 5 were infected with a total of 33 worms; 23 in one mouse and 10 in the other.
B, Fried, R C, Peoples
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Tegumentary papillae of Echinostoma caproni cercariae (Trematoda: Echinostomatidae)
Parasitology Research, 2003Argentophilic staining and scanning electron microscopy were used to study the tegumentary papillae of Echinostoma caproni cercariae. The most abundant tegumentary papillae were uniciliate, but multiciliate papillae were also found, mainly on the ventral aspect of the oral collar.
T, Nakano +5 more
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Responses of Echinostoma caproni miracidia to gravity, light, and chemicals
International Journal for Parasitology, 1992In a four-tube vertical system, Echinostoma caproni miracidia exhibited a strong negative geotaxis which was dominated by a positive phototaxis. In horizontal chambers a positive phototactic response was also demonstrated. These miracidia showed a positive chemoresponse, as determined in phi-chambers, to glutamic and aspartic acids but not leucine ...
A C, Behrens, P M, Nollen
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Diurnal Migration of Echinostoma caproni (Digenea: Echinostomatidae) in ICR Mice
Journal of Parasitology, 2010Twenty-four female ICR mice, 12 acclimated to a 12 ∶ 12 light-dark cycle and 12 to a 12 ∶ 12 dark-light cycle for 7 days, were each infected with 10 metacercariae of Echinostoma caproni. Infected mice were maintained on their respective lighting regimes for 28 days.
Platt, Thomas R +3 more
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