Gillary H L
Department of Biology, Johns Hopkins University, Baltimore, USA.
J Gen Physiol. 1966 Nov;50(2):337-50. doi: 10.1085/jgp.50.2.337.
Application of NaCl solutions to the tip of a labellar sensillum of the blowfly elicited a repetitive neural response from the salt receptor. The response was examined with respect to reproducibility and adaptation. A threshold was observed for tests with dilute solutions. Above this, the response increased linearly with the logarithm of the molarity. The response was not significantly affected by the pH of stimulating solutions, buffered or not, between 3 and 10. Beyond this range, it was reversibly inhibited until, at greater extremes of pH, atypical stimulation independent of the presence of salt was seen. Receptor sensitivity increased with fly age. The results presented here may be due to effects at sites in the sensillum other than the receptor membrane.
将氯化钠溶液施加于丽蝇唇感器的尖端,会引发盐感受器的重复性神经反应。对该反应的可重复性和适应性进行了研究。在使用稀溶液进行测试时观察到了一个阈值。在此之上,反应随摩尔浓度的对数呈线性增加。刺激溶液的pH值(无论是否缓冲)在3至10之间时,反应不受显著影响。超出此范围,反应会被可逆性抑制,直到在更极端的pH值下,出现与盐的存在无关的非典型刺激。感受器敏感性随果蝇年龄增加而提高。此处呈现的结果可能是由于感受器中除受体膜之外的其他位点的作用。