A SENSORY INPUT INHIBITING HEART-RATE IN AN INSECT, RHODNIUS-PROLIXUS

被引：25

作者：

CHIANG, RG ^{[1
]}

CHIANG, JA ^{[1
]}

DAVEY, KG ^{[1
]}

机构：

[1] YORK UNIV,DEPT BIOL,N YORK M3J 1P3,ON,CANADA

来源：

EXPERIENTIA | 1992年 / 48卷 / 11-12期

关键词：

DORSAL VESSEL; HEART; INSECT; SEROTONIN; OCTOPAMINE; INHIBITION;

D O I：

10.1007/BF01948003

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The dorsal vessel of the blood feeding insect, Rhodnius prolixus, was found to increase or decrease its rate of contraction in response to a number of different stimuli. Handling increased contraction rates whereas tactile stimulation of the ventral abdominal cuticle inhibited contraction. Injection of very low concentrations of serotonin or of high concentrations of octopamine enhanced the inhibitory effect, apparently by acting via the nervous system. Higher concentrations of serotonin increased heart rate by acting directly on the myocardium. The inhibitory response is suggested to be one facet of a generalised thigmotactic response.

引用

页码：1122 / 1125

页数：4

共 20 条

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