Maturation of telotrophic ovary accompanied with ecdysteroidogenic activity and contrastive decrease in ecdysteroids in the whole body of red flour beetle, Tribolium castaneum (Coleoptera: Tenebrionidae)
Maturation of telotrophic ovary accompanied with ecdysteroidogenic activity and contrastive decrease in ecdysteroids in the whole body of red flour beetle, Tribolium castaneum (Coleoptera: Tenebrionidae)
复制标题
红谷盗赤拟谷盗（鞘翅目：拟步甲科）的端养卵巢成熟，伴随着蜕皮类固醇生成活性和全身蜕皮类固醇的相对减少
DOI：
10.1007/s13355-020-00682-x
复制
发表时间：
2020
影响因子：
1.3
通讯作者：
Eiji Kotani & Yu Kaneko
中科院分区：
文献类型：
--
作者：
Keiko Takaki ;Koji Hazama;Maiko Yazaki;Eiji Kotani & Yu Kaneko
蜕皮激素主要由前胸腺合成，调节昆虫幼虫的蜕皮和变态。在蛹-成虫变态期间，前胸腺退化后，卵巢成为成年雌性蜕皮激素的来源。在这里，我们证明了高蜕皮激素水平后，成人羽化下降，在最初几天的羽化成人红粉甲虫，赤拟谷盗（Herbst）（鞘翅目：拟步甲科）。新羽化成虫的蜕皮甾体可能来源于成虫体前部的脓细胞和/或蜕皮甾体生成细胞。成虫初期血淋巴中的蜕皮激素可能对卵巢发育有重要作用。虽然蜕皮激素水平下降，血淋巴中，卵巢获得的能力，产生蜕皮激素酶基因表达增加。
Ecdysteroids are mainly synthesised in the prothoracic glands, which regulate larval moulting and metamorphosis in insects. After degeneration of the prothoracic gland during pupal–adult metamorphosis, the ovary becomes the source of ecdysteroids in adult females. Here, we demonstrated that the high ecdysteroid level after adult eclosion decreased in the first few days in the eclosed adult red flour beetle,Tribolium castaneum(Herbst) (Coleoptera: Tenebrionidae). The ecdysteroids in the freshly eclosed adult might originate from pupae and/or ecdysteroidogenic cells present in the anterior part of the adult body. The ecdysteroid in the haemolymph at the very beginning of adult stage may be important for ovarian development. While ecdysteroid levels decreased in the haemolymph, the ovaries acquired the ability to produce ecdysteroids with increased enzyme gene expression.