THE OCCURRENCE OF HISTOCHEMICAL ACTIVITY OF 3β‐HYDROXYSTEROID DEHYDROGENASE IN THE DEVELOPING TESTES OF POECILIA RETICULATA
THE OCCURRENCE OF HISTOCHEMICAL ACTIVITY OF 3β‐HYDROXYSTEROID DEHYDROGENASE IN THE DEVELOPING TESTES OF POECILIA RETICULATA
复制标题
网孔雀睾丸发育过程中3β-羟基类固醇脱氢酶组织化学活性的变化
DOI：
10.1111/j.1440-169x.1973.00241.x
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发表时间：
1973
期刊：
影响因子：
4.6
通讯作者：
Y. Iwasaki
中科院分区：
文献类型：
--
作者：
Hiroya Takahashi;Y. Iwasaki
在孔雀鱼 Poecilia reticulata 的成熟睾丸中，一些细胞群稀疏地分布在外周生殖细胞层和肺门导管系统之间的间隙中，对 Δ5-3β-羟基类固醇脱氢酶（3β-HSD）表现出明显的组织化学反应。在新产的孔雀鱼的睾丸中，体细胞作为致密团块存在于睾丸门中，没有表现出任何结构分化。在出生后约 7 天的 8mm 阶段的幼鱼睾丸中，组织学上类似于成年睾丸的间质细胞从体细胞团中分化出来，并且（尽管仅在某些标本中）同时开始对 3β-HSD 显示出微弱但明显的组织化学反应。此后，酶活性的出现在发育中的睾丸中变得越来越规律，并在11×13mm阶段或17∽20日龄后达到所有标本睾丸中的成体分布模式。
In the mature testes of the guppy, Poecilia reticulata, some groups of cells, distributed sparsely in the interspace between the peripheral germ cell layer and the hilar duct system, show evident histochemical response for Δ5‐3β‐hydroxysteroid dehydrogenase (3β‐HSD). In the testis of newly delivered guppies, somatic cells are present in the testicular hilus as a compact mass without revealing any structural differentiation. In the testis of juvenile fish of the 8mm stage about 7 days after birth, interstitial cells resembling histologically those of adult testes become differentiated from the somatic cell mass and, though only in some specimens, coincidentally begin to display weak but obvious histochemical response for 3β‐HSD. Thereafter the occurrence of enzyme activity becomes increasingly regular in the developing testes, and attains the adult pattern of distribution in testes of all specimens after the 11 13mm stage or 17 ∽ 20 days of age.