Aminergic control of social status in crayfish agonistic encounters.
Aminergic control of social status in crayfish agonistic encounters.
复制标题
DOI：
10.1371/journal.pone.0074489
复制
发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Nagayama T
中科院分区：
文献类型：
--
作者：
Momohara Y;Kanai A;Nagayama T
使用配对的雄性克氏原螯虾与3-7%的大小差异，我们证实，身体较大的小龙虾更有可能赢得比赛（超过80%的获胜概率）。尽管身体上处于劣势，但第一次配对的小赢家更有可能赢得随后与更大的天真动物的冲突（获胜概率约为70%）。相比之下，第一次配对的失败者很少赢得与较小的天真动物的后续冲突（获胜概率为6%）。通过注射血清素和章鱼胺来模拟这些赢家和输家效应。注射血清素的幼稚小龙虾更有可能在与未经处理的较大幼稚小龙虾的配对中获胜（获胜概率超过60%），而注射章鱼胺的幼稚大动物被未经处理的较小幼稚动物击败（获胜概率为20%）。此外，占主导地位的小龙虾的赢家效应被取消了米安色林，5-羟色胺受体拮抗剂的注射，并加强了氟沙星，5-羟色胺再摄取抑制剂的注射后，建立社会秩序的第一对。相反，注射章鱼胺通道阻断剂酚妥拉明和依匹斯汀则可消除loser效应。这些结果强烈表明，5-羟色胺和章鱼胺分别负责赢家和输家效应。
Using pairings of male crayfish Procambarus clarkii with a 3–7% difference in size, we confirmed that physically larger crayfish were more likely to win encounters (winning probability of over 80%). Despite a physical disadvantage, small winners of the first pairings were more likely to win their subsequent conflicts with larger naive animals (winning probability was about 70%). By contrast, the losers of the first pairings rarely won their subsequent conflicts with smaller naive animals (winning probability of 6%). These winner and loser effects were mimicked by injection of serotonin and octopamine. Serotonin-injected naive small crayfish were more likely to win in pairings with untreated larger naive crayfish (winning probability of over 60%), while octopamine-injected naive large animals were beaten by untreated smaller naive animals (winning probability of 20%). Furthermore, the winner effects of dominant crayfish were cancelled by the injection of mianserin, an antagonist of serotonin receptors and were reinforced by the injection of fluoxetin, serotonin reuptake inhibitor, just after the establishment of social order of the first pairings. Injection of octopamine channel blockers, phentolamine and epinastine, by contrast, cancelled the loser effects. These results strongly suggested that serotonin and octopamine were responsible for winner and loser effects, respectively.
登录
查看更多内容
影响因子：
2.5
作者：
CHASE, ID;BARTOLOMEO, C;DUGATKIN, LA
通讯作者：
DUGATKIN, LA
影响因子：
3.7
作者：
Beggs, Kyle T.;Tyndall, Joel D. A.;Mercer, Alison R.
通讯作者：
Mercer, Alison R.
DOI：
10.1086/physzool.26.2.30154514
发表时间：
1953-01-01
期刊：
PHYSIOLOGICAL ZOOLOGY
影响因子：
--
作者：
BOVBJERG, RV
通讯作者：
BOVBJERG, RV
影响因子：
2.5
作者：
Araki, M;Nagayama, T;Sprayberry, J
通讯作者：
Sprayberry, J
DOI：
10.1016/j.cbpb.2004.09.019
发表时间：
2004-11-01
影响因子：
2.3
作者：
Badino, P;Odore, R;Re, G
通讯作者：
Re, G