Regis L, Furtado A F, Gomes Y M, Coutinho V B, Schuetz M J, Cavalcante V S, Brito M E, Coutinho H B
Departamento de Biologia Geral, UFPE, Recife, PE, Brasil.
Mem Inst Oswaldo Cruz. 1987;82 Suppl 3:75-8. doi: 10.1590/s0074-02761987000700015.
The epithelial cells of Panstrongylus megistus male accessory glands (MAG) present ultrastructural characteristics of a secretory cell. Their secretory products are accumulated in the lumen of the four MAG lobes. During the first 8 days of adult life a strong secretion activity occurs, accumulating enough material to produce the first spermatophore. Cerebral neurosecretions as well as juvenile hormone are both involved in MAG secretory activity regulation. Juvenile hormone seems to be the responsible for the stimulation of most protein synthesis in male accessory glands. Cerebral neurosecretion seems to be necessary to stimulate juvenile hormone production and release by the corpus allatum. Furthermore, neurosecretion is required for some polypeptides synthesis by MAG. Although topic application of precocene II to adult males does not reproduce the same effects on MAG as does allatectomy, this compound causes strong reduction on male reproductive capacity.
大劣按蚊雄性附腺（MAG）的上皮细胞呈现出分泌细胞的超微结构特征。它们的分泌产物积聚在四个MAG叶的管腔中。在成虫生命的前8天，会发生强烈的分泌活动，积累足够的物质以产生第一个精包。脑神经分泌以及保幼激素都参与MAG分泌活动的调节。保幼激素似乎是刺激雄性附腺中大多数蛋白质合成的原因。脑神经分泌似乎是刺激咽侧体产生和释放保幼激素所必需的。此外，神经分泌是MAG合成某些多肽所必需的。尽管对成年雄性局部应用早熟素II对MAG的影响与去咽侧体不同，但该化合物会导致雄性生殖能力大幅下降。
