A chemokinetic response in Schistosoma mansoni cercariae

C. J. Shiff, T. K. Graczyk

Research output: Contribution to journalArticle

Abstract

Schistosoma mansoni cercariae have been shown to aggregate in the presence of glass slides treated with clear nail varnish and linoleic acid. In choice chambers cercariae move toward the stimulant, but this behavior is not seen when linoleic acid is omitted. After 30-45 min, the cercariae were concentrated near the end of the choice-chamber containing the linoleic acid slide. When the cercariae were added in the center of the choice chamber, they formed a diffuse cloud that dispersed slowly in both directions in the absence of linoleic acid. Cercariae aggregating in the vicinity of a stimulant surface are not immediately stimulated to commence penetration; this appears to be time and dose related.

Original languageEnglish (US)
Pages (from-to)879-883
Number of pages5
JournalJournal of Parasitology
Volume80
Issue number6
DOIs
StatePublished - Dec 1 1994

ASJC Scopus subject areas

  • Parasitology
  • Ecology, Evolution, Behavior and Systematics

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