Triphasic locomotor response of a plant-parasitic nematode to avermectin: inhibition by the GABA antagonists bicuculline and picrotoxin

Autor: A. J. Birtle, I. T. J. Roberts, Denis J. Wright
Rok vydání: 1984
Předmět:
Zdroj: Parasitology. 88:375-382
ISSN: 1469-8161
0031-1820
Popis: SUMMARYThe response of the plant parasitic nematode, Meloidogyne incognita (J2 stage) to avermectin B2a-23-one is triphasic, comprising an initial loss of locomotor activity where the juveniles remain sensitive to touch, a recovery phase and a final loss of activity where the juveniles are relatively insensitive to touch. In contrast, the acetylcholinesterase inhibitor, oxamyl, causes initial hyperactivity of juveniles followed by a progressive decline in movement. The addition of bicuculline and to a lesser extent picrotoxin, both antagonists of γ-aminobutyric acid (GABA), blocks the action of avermectin on M. incognita.
Databáze: OpenAIRE