Structure of ovaries of scale insects: ii. margarodidae (INSECTA, hemiptera, COCCINEA)

Teresa Szklarzewicz
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引用次数: 20

Abstract

The paired, spindle-shaped ovaries of the second instar of the Polish cochineal, Porphyrophora polonica (L.) (Hemiptera: Coccinea) are filled with cystocytes that are arranged into rosettes. In the centre of each rosette, there is a polyfusome. During the third instar, cystocytes differentiate into oocytes and trophocytes (nurse cells) and ovarioles are formed. Ovaries of adult females are composed of about 300 ovarioles of the telotrophic type. Each of them is subdivided into a tropharium (trophic chamber) and vitellarium. The tropharium consists of trophocytes and arrested oocytes that may develop. The number of germ cells in the trophic chambers varies from 11 to 18 even between the ovarioles of the same ovary. The obtained results seem to confirm the concept of a monophyletic origin of the primitive scale insects (Archaeococcoidea).

蚧虫子房结构:2。蜂鸟科(昆虫亚目,半翅目,尾虫亚目)
波兰胭脂虫Porphyrophora polonica (L.)(半翅目:胭脂虫)二龄虫成对的纺锤形子房充满排列成玫瑰花的囊细胞。在每个玫瑰花结的中心,有一个多丝体。第三龄时,囊细胞分化为卵母细胞和滋养细胞,形成卵巢。成年女性的卵巢由大约300个卵巢组成。每一个都被细分为营养室(营养室)和vitellarium。滋养体由滋养细胞和可能发育的卵母细胞组成。即使在同一个卵巢的不同卵巢中,营养室中的生殖细胞数量也从11个到18个不等。所获得的结果似乎证实了原始蚧虫(太古球虫总科)的单系起源的概念。
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