Testicular maturation and regression in the common snook
Testicular maturation and regression in the common snook
复制标题
普通斯努克的睾丸成熟和退化
DOI：
10.1111/j.1095-8649.1998.tb00999.x
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发表时间：
1998
影响因子：
2
通讯作者：
R. Taylor
中科院分区：
文献类型：
--
作者：
H. Grier;R. Taylor
在每年的生殖周期中，Centropomus undecimalis的小叶睾丸经历高度，宽度和形态的变化，反映了五个生殖类：退化;早期，中期和晚期成熟;和回归。组织学标准，特别是连续和不连续的生殖腺上皮细胞之间的差异，用于区分这五个类，即使它们只是年度性腺周期内的参考点。小叶生长在早期，中期和晚期成熟的机制，它是假设，永久germinal上皮细胞首先出现在鱼类。全年，在睾丸中观察到过碘酸希夫阳性的巨噬细胞中心和PAS阳性的粒细胞。它们在繁殖季节后最丰富，并且它们可能参与局部组织降解。
During the annual reproductive cycle, the lobular testis of Centropomus undecimalis undergoes height, width, and morphological changes which reflect five reproductive classes: regressed; early, mid-, and late maturation; and regression. Histological criteria, particularly differences between continuous and discontinuous germinal epithelia, are used to distinguish these five classes, even though they are only reference points within the annual gonadal cycle. A mechanism for lobular growth during early, mid-, and late maturation is presented; and it is hypothesized that a permanent germinal epithelium first appeared in the fishes. Throughout the year, periodic acid-Schiff-positive macro-melanophage centres and PAS-positive granulocytes are observed in the testis. They are most abundant after the breeding season, and they may be involved in focal tissue degradation.