Chemoattraction inPellioditis pellio (Nematoda: Secernentia) in the presence and absence of barriers

  title={Chemoattraction inPellioditis pellio (Nematoda: Secernentia) in the presence and absence of barriers},
  author={L. K. Eveland and Bernard Fried},
  journal={Journal of Chemical Ecology},
Pellioditis pellio (Nematoda) adults showed heterosexual chemoattraction and female homosexual chemoattraction in an in vitro bioassay without barriers. Male-to-female heterosexual, but no homosexual chemoattraction, was observed whenMr 25,000 pore size dialysis tube chimneys (barriers) were used to restrain female attractor worms. Less attraction was seen whenMr 12,000 pore size barriers were used. The results suggest the presence of at least two types of chemoattractant for this species and… Expand
Pellioditis pellio: Substituted phenolic compounds as chemoattractants
This work tested vanillin, vanillic acid, and 2,4-dihydroxybenzaldehyde in an in vitro bioassay system for their ability to attract Pellioditis pellio males and females and found females were not attracted to any of the three compounds. Expand
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No daily rhythm of pheromone responsiveness by males or phersomone production by females was observed when the nematodes were conditioned to a 12∶12 h light-dark cycle, and the time required for the males to migrate toward a female phermone source increased with increasing age. Expand
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Current knowledge of schistosome behavior in vitro is reviewed and interspecific attraction occurs inSchistosoma mansoni, S. japonicum, and S. haematobium adults. Expand
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Both males and females that were permitted to mate daily produced the greatest number of offspring when they were 4 days old, and when the initiation of mating was delayed beyond their third day of life, the number of larvae produced by females decreased. Expand
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Scanning electron microscopical (SEM) observations were made on the surface topography of the lips, papillae, amphids, excretory pore, vulva, anus, caudal alae, cuticular bosses, and annular rings ofExpand
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