Study on neurohormonal modulation of both somatic motor and circulatory systems in decapod Crustacea.
十足目甲壳类躯体运动和循环系统的神经激素调节研究。
基本信息
- 批准号:60540453
- 负责人:
- 金额:$ 1.09万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1985
- 资助国家:日本
- 起止时间:1985 至 1987
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The aim of this study was to clarify physiological functions of the pericardial organs developped in decapod Crustacea. To study these, te spiny lobster (Panulirus japonicus) and the american crayfish (Procambarus clarkii) were used. Behaviors of them were observed with video-recording systems. Blood pressure and electrical activities of nerve and muscle were recorded with conventional methods for electrophysiology. Main results are as follows.1. Using a couple of electrodes and a pressure sensor implanted in the body, I succeeded in simultaneous recording of electrocardiogram and blood pressure in the pericardial cavity while various behaviors are recorded.2. Using the cardioarterial valves, it was demonstrated that serum of the lobster contained three substances which show the same activities as pericardial hormones (octopamine, proctolin and serotonin), and that their concentrations were as high as 0.1 M (physiologically significant).3. Cardiac pumping activities in vivo were slowly … More increased after an injection of octopamine or proctolin (lower than 1 M). Similar increases in cardiac pumping activities were observed during vigorous body movements, such as feeding and escape behaviors. This may imply that octopamine or proctolin secretes during vigorous body movements.4. Each of serotonin, octopamine and proctolin showed specific modulatory actions on spontaneous activities of the ventral ganglia, especially on swimming activities of the crayfish. Serotonin enhanced impulse activity of power stroke motoneurons innervating swimmerets. Octopamine suppressed impulses of both power and return stroke motoneurons whereas proctolin activated them.5. I succeeded in recording impulse activities of ligament nerves which are related to secretion of the pericardial neurohormones. Some (usuall three) axons in the ligament nerves started to fire when the pericardial cavity was perfused with cold saline (5-15゜C). Ligament nerves also fired when serotonin or octopamine (u mM, 1 ml) was applied into the pericardial cavity. Less
本研究的目的是阐明甲壳纲十足目动物心包器官的生理功能。为了研究这些,使用了多刺龙虾(Panulirus)和美国小龙虾(Procambarus clarkii)。用录像系统观察它们的行为。用常规电生理方法记录血压、神经和肌肉电活动。主要研究结果如下:1.利用植入体内的一对电极和一个压力传感器,成功地在记录各种行为的同时,同步记录了心包腔内的心电图和血压.使用心脏动脉瓣膜,证明龙虾的血清含有三种物质,其显示与心包激素(章鱼胺、proctolin和5-羟色胺)相同的活性,并且它们的浓度高达0.1 M(生理上显著的)。在体心脏泵血活动缓慢, ...更多信息 注射章鱼胺或proctolin(低于1 M)后增加。在剧烈的身体运动中,如进食和逃跑行为,也观察到心脏泵血活动的类似增加。这可能意味着章鱼胺或proctolin分泌在剧烈的身体运动。5-羟色胺、章鱼胺和原甲胆碱对腹神经节的自发活动,尤其是对螯虾的游泳活动具有特异性的调节作用。5-羟色胺增强支配游泳鼠的动力性中风运动神经元的冲动活动。章鱼胺抑制动力和回击运动神经元的冲动,而proctolin激活它们。我成功地记录了与心包神经激素分泌有关的韧带神经冲动活动。当心包腔内灌注冷盐水(5-15 ℃)时,韧带神经中的一些(通常为3个)轴突开始放电。当将5-羟色胺或章鱼胺(μ mM,1 ml)应用于心包腔时,韧带神经也被激发。少
项目成果
期刊论文数量(14)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Kuramoto,T.;Ebara,A.: Journal of Comparative Physiology B. (1988)
Kuramoto,T.;Ebara,A.:比较生理学杂志 B. (1988)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Kuramoto: The Journal of Experimental Zoology. 241. (1987)
T.Kuramoto:《实验动物学杂志》。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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KURAMOTO Taketeru其他文献
KURAMOTO Taketeru的其他文献
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{{ truncateString('KURAMOTO Taketeru', 18)}}的其他基金
ANALYSIS OF THE MEMBRANE PROPERTIES OF THE COLD RESPONSIVE CELLS PRESENT IN CRUSTACEAN HEARTS.
甲壳动物心脏中冷反应细胞的膜特性分析。
- 批准号:
08459004 - 财政年份:1996
- 资助金额:
$ 1.09万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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