https://scholars.lib.ntu.edu.tw/handle/123456789/572821
標題: | Social interactions upregulate hemolymph tryptophan and tyrosine levels in the male lobster cockroach | 作者: | Hsieh H.-W Chen S.-C Huang W.-C Fang S EN-CHENG YANG Hsu C.-C Kou R. |
關鍵字: | amine; juvenile hormone; pheromone; tryptophan; tyrosine; animal behavior; animal experiment; animal tissue; antenna (organ); Article; controlled study; electronic circular dichroism; female; fighting; hemolymph; high performance liquid chromatography; male; mass spectrometry; mating; Nauphoeta cinerea; nonhuman; priority journal; social behavior; social interaction; ultra performance liquid chromatography; upregulation; wing | 公開日期: | 2021 | 卷: | 130 | 來源出版物: | Hormones and Behavior | 摘要: | In the present study, we found that tryptophan (TRP) and tyrosine (TYR) levels are increased in hemolymph of male Nauphoeta cinerea after social contact with either male or female conspecifics. Hemolymph was collected from individual males before and after the social interactions, and samples were analyzed by HPLC-ECD; analyte identities were confirmed by UPLC/MS. After a male-male first encounter fight, hemolymph TRP and TYR levels were significantly increased in dominants compared with the levels before the encounter. Conversely, TRP and TYR in subordinates were maintained at levels similar to those before the encounter. While after-fight TRP and TYR levels were significantly higher in dominants than subordinates, no significant differences were found in the contestants before the fight. Moreover, contact with an isolated male antenna was sufficient to stimulate attack behavior and increase hemolymph TRP and TYR titers to levels similar to those seen in dominants. After a male-female interaction, two distinct outcomes could be observed. Either hemolymph TRP and TYR levels were increased in successfully mated males, or TRP and TYR levels were unchanged in males that only exhibited premating wing-raising behavior but failed in mating. After contacting the antenna of a socially na?ve male with an isolated female antenna, three patterns of behavior and related amino acid response were observed: 1) only premating wing-raising behavior with significant increase of TRP and TYR levels, 2) only attack behavior with significant increase of TRP and TYR levels, and 3) mixed wing-raising and attack behaviors with no significant changes in TRP and TYR levels. The present results show a robust response of hemolymph TRP and TYR to social contact. In light of previously characterized responses in pheromone and juvenile hormone levels, these amine responses suggest that the physiological response of N. cinerea to social contact is multi-dimensional. ? 2021 |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100031347&doi=10.1016%2fj.yhbeh.2021.104935&partnerID=40&md5=2bba77fb67d81dc32b9c9c345ae7623a https://scholars.lib.ntu.edu.tw/handle/123456789/572821 |
ISSN: | 0018506X | DOI: | 10.1016/j.yhbeh.2021.104935 |
顯示於: | 昆蟲學系 |
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