In vitro chemotactic responses of Brugia pahangi infective larvae to sodium ions.
In vitro chemotactic responses of infective third-stage larvae (L3) of Brugia pahangi to NaCl, Na2HPO4, KCl, K2HPO4, MgCl2 and CaCl2 were assessed. Compared to deionized water as a control, 200 mm NaCl and 100 mm Na2HPO4 significantly attracted L3 (P < 0.01 and P < 0.01), whereas L3 were likely to avoid 200 mm KCl and 100 mm K2HPO4 (P < 0.05 and P < 0.05). L3 showed no significant tendency to avoid or to be attracted to 200 mm CaCl2 and 200 mm MgCl2. Furthermore, NaCl exhibited a significant chemoattractant activity for L3 at a low concentration of 100 mm.
Department of Parasitology, Institute of Tropical Medicine, Nagasaki University, 1-14-2 Sakamoto, Nagasaki, Japan. ymitsui@nagasaki-u.ac.jp
Y
Y
Mitsui
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Miura
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Bome
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Aoki
D000818:Animals; D017179:Brugia pahangi / Q000187:drug effects / Q000502:physiology*; D002630:Chemotactic Factors / Q000378:metabolism*; D002633:Chemotaxis; D007477:Ions / Q000378:metabolism*; D007814:Larva / Q000187:drug effects / Q000502:physiology; D012964:Sodium / Q000378:metabolism*
D002630:Chemotactic Factors; D007477:Ions; D012964:Sodium