Ditrich H, Splechtna H
Scan Electron Microsc. 1986(Pt 2):591-7.
The glomerular complexity of several species of birds and reptiles is investigated in this study by scanning electron microscopy of vascular corrosion casts. Comparing these results with those of a freshwater teleost and a mammalian species, a trend towards small, simple glomeruli of the avian type, beginning with large, well vascularized glomeruli resembling the type found in fish, can be observed in reptiles. A close correlation between glomerular size and habitat can be established comparing related species having a similar physiological mode of renal function. Entirely different from this sauropsidian evolutionary line of development is the highly complex, large differentiation of the mammalian glomerulus.
本研究通过对血管铸型进行扫描电子显微镜检查，对几种鸟类和爬行动物的肾小球复杂性进行了研究。将这些结果与淡水硬骨鱼和哺乳动物的结果进行比较，可以观察到，爬行动物中存在一种趋势，即从类似于鱼类中发现的血管丰富的大型肾小球开始，向鸟类类型的小型、简单肾小球发展。比较具有相似肾功能生理模式的相关物种，可以确定肾小球大小与栖息地之间存在密切关联。与这种蜥形纲动物的进化发展路线完全不同的是，哺乳动物的肾小球高度复杂且分化程度高。
