An examination of serotonin and feeding in the flesh fly Neobellieria bullata (Sarcophagidae: Diptera)
An examination of serotonin and feeding in the flesh fly Neobellieria bullata (Sarcophagidae: Diptera)
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DOI：
10.1023/a:1022817610378
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发表时间：
2003-01-01
影响因子：
1
通讯作者：
Mitchell, BK
中科院分区：
文献类型：
--
作者：
Dacks, AM;Nickel, T;Mitchell, BK
血清素在控制肉蝇摄食中的作用进行了研究。在6小时内记录注射5-羟色胺或盐水的果蝇的摄食量。在注射5-羟色胺或生理盐水或不注射后，记录在1小时内花费在各种行为上的时间比例。相应的电生理测量上的血清素和盐水注射苍蝇。还检查了作为喂食结果的血清素的释放。用免疫细胞化学方法对喂糖前或喂糖后2天的果蝇食管下神经节进行了观察。与盐水注射的果蝇相比，血清素注射减少了果蝇的摄食。所有的行为测量后血清素注射下降，除了休息，增加，梳理，减少血清素和盐水注射苍蝇。在注射了5-羟色胺的果蝇中，对蔗糖的电生理反应明显减少。食管下神经节的特定细胞显着减少血清素免疫反应性相比，还没有喂养的苍蝇。本文讨论了血清素在影响昆虫取食生理中的作用。
The role of serotonin in controlling feeding in flesh flies is examined. Amount of feeding was recorded over 6 h for flies injected with serotonin or saline. The proportion of time spent on various behaviors over a period of 1 h was recorded after the injection of serotonin or saline or no injection. Corresponding electrophysiological measurements were made on serotonin and saline-injected flies. The release of serotonin as a consequence of feeding was also examined. The subesophageal ganglia of flies taken before or after 2 days of sugar feeding were examined immunocytochemically. Serotonin injection decreased feeding in flies compared to saline-injected flies. All behaviors measured decreased after serotonin injection, except for resting, which increased, and grooming, which decreased in both serotonin- and saline-injected flies. A marked reduction in electrophysiological responses to sucrose was seen in serotonin- injected flies. Specific cells of the subesophageal ganglion showed significantly less serotonin immunoreactivity in fed flies compared to flies that had not yet fed. The role of serotonin in affecting the physiology of feeding in insects is discussed.