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Functional Morphology of the Pineal-Pituitary System in the Domestic Mammals and Birds under Photoperiodic Response.

光周期响应下家养哺乳动物和鸟类松果体-垂体系统的功能形态。

基本信息

批准号：
60480077
负责人：
MATSUO Shinichi
金额：
$ 3.46万
依托单位：
Faculty of Agriculture,Shishu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1986
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60480077/
关键词：
Pineal gland Pinealocytes Adenohypophysis Japanese serow Goat Chicken Quail Photoperiod ライフサイクル

项目摘要

Pineal glands, adenohypophyses, testes and ovaries from goats, Japanese serows, chickens and Japanese quails of different ages, and from their anual cycle and photoperiod (LD12:12) have been used for this investigation.1. In the goat the pigment-containing cells and the nerve cells of the pineal gland changed in number with age. In the serow and goat the acinal colloid of the pituitary gland changed with age and during pregnancy.2. In the goat and serow the pars tuberalis of the pituitary gland reached the optic chiasma. These results may suggest that the interrelationships between the suprachiasmatic nucleus and the pars tuberalis. In the serow's pituitary the cone of Wulzen(1913)appeared in the pars intermedia. In the goat's pituitary the island of the intermedia was found in the central part of the pars distalis.3. In the chicken pineal gland the follicular structure gradually changed into lobular structure with age. In the day-hatching Japanese quail the paraboloid(Glycogen contain)and the outer segments of the pineal gland were found as like the structure of the photoreceptor.4. In aging cock and aging capon the cellular droplets increased remarkably in both the cephalic and caudal lobes, and the pars tuberalis. The specific cells "broody cells" were appeared at the posterior area of the cephalic lobes of the pituitary gland in the begining of the broody hen. The broody cells distributed gradually in the whole cephalic lobe but never appeared in the caudal lobe of the pituitary gland.

本研究使用不同年龄的山羊、日本母鸡、鸡和日本鸣禽的松果腺、腺垂体、睾丸和卵巢，以及它们的年周期和光周期(LD12：12)。山羊松果体中含有色素的细胞和神经细胞的数量随着年龄的增长而变化。结果：1.绒毛和山羊脑下垂体的腺泡胶体随年龄和孕期的变化而变化。在山羊和母猪中，垂体腺的结节部到达视交叉。这些结果可能提示视交叉上核与结节部之间的相互关系。在母猪的脑下垂体部，中间部出现了伍尔岑锥体(1913)。在山羊脑垂体中，中间岛位于远侧部的中央。在鸡松果体中，随着年龄的增长，滤泡结构逐渐转变为小叶结构。在孵化的日本鸣禽中，发现抛物面(含糖原)和松果体的外节与感光细胞的结构相似。在老年公鸡和老年雄鸡，头叶、尾叶和结节部的细胞液滴明显增多。在就巢母鸡开始时，在脑垂体头叶的后部出现了特定的细胞“就巢细胞”。亲巢细胞逐渐分布于整个头叶，但在脑垂体尾侧叶基本不出现。