MOIST AND DRY HYGRORECEPTORS FOR RELATIVE HUMIDITY OF COCKROACH, PERIPLANETA-AMERICANA L
MOIST AND DRY HYGRORECEPTORS FOR RELATIVE HUMIDITY OF COCKROACH, PERIPLANETA-AMERICANA L
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DOI:
10.1007/bf00620495
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发表时间:
1976-01-01
期刊:
影响因子:
--
通讯作者:
TATEDA, H
中科院分区:
文献类型:
--
作者:
YOKOHARI, F;TATEDA, H
Antennal hygroreceptors of the cockroach P. americana were electrophysiologically investigated. The moist and dry hygroreceptors, together with a thermal receptor, are contained in a sensillum capitulum, which is located on alternating flagellar segments. The responses of both hygroreceptors are of a phasic-tonic manner, and following the cessation of stimulation, decrease to a level lower than the prestimulation level. The humidity-response relationship of the hygroreceptors is independent of stimulus flux. The responses of the hygroreceptors when the whole animal and stimulus air are changed simultaneously, are larger at higher than at lower temperatures. The normalized humidity-response relationship of the hygroreceptors at different temperatures are coincident when plotted against relative humidity [RH] but not when plotted against absolute humidity [AH]. The humidity-response relationships at different temperatures are coincident when plotted against RH, but not when plotted against AH, provided that only the stimulus temperature is changed. The responses of the hygroreceptors depend on RH and the mechanism of the primary process of hygroreception is non-chemical.