{"title":"蚧虫子房的结构。1 .假球虫科、鸡翅虫科、隐球虫科(昆虫亚目、半翅目、球虫亚目)","authors":"Teresa Szklarzewicz","doi":"10.1016/S0020-7322(98)00007-5","DOIUrl":null,"url":null,"abstract":"<div><p>Developing ovaries of scale insects (Hemiptera : Coccinea) <em>Nipaecoccus nipae</em> (Pseudococcidae) and <em>Cryptococcus fagisuga</em><span> (Cryptococcidae) contain clusters of interconnected cells (cystocytes) that are arranged into rosettes; polyfusomes occur in the centres of the rosettes. Ovaries of the investigated adult scale insects are composed of numerous short telotrophic ovarioles. Tropharia (trophic chambers) of </span><em>Dysmicoccus newsteadi</em> (Pseudococcidae), <span><em>Eriococcus</em><em> buxi</em></span> (Eriococcidae), <em>Cryptococcus fagisuga</em> and <span><em>Pseudochermes </em><em>fraxini</em></span> (Cryptococcidae) comprise only trophocytes (nurse cells), whereas those of <span><em>Kermes </em><em>quercus</em></span> (Kermesidae) and <em>Gossyparia spuria</em> (Eriococcidae) also contain arrested oocytes. The latter probably degenerate. It is suggested that during evolution of scale insects a gradual reduction of germ cells to 4 per cluster (3 trophocytes and 1 oocyte) took place. In light of the obtained results, anagenesis of scale insects ovarioles is discussed.</p></div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"27 3","pages":"Pages 167-172"},"PeriodicalIF":0.0000,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(98)00007-5","citationCount":"29","resultStr":"{\"title\":\"Structure of ovaries in scale insects. i. pseudococcidae, kermesidae, eriococcidae, and cryptococcidae (INSECTA, hemiptera, COCCINEA)\",\"authors\":\"Teresa Szklarzewicz\",\"doi\":\"10.1016/S0020-7322(98)00007-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Developing ovaries of scale insects (Hemiptera : Coccinea) <em>Nipaecoccus nipae</em> (Pseudococcidae) and <em>Cryptococcus fagisuga</em><span> (Cryptococcidae) contain clusters of interconnected cells (cystocytes) that are arranged into rosettes; polyfusomes occur in the centres of the rosettes. Ovaries of the investigated adult scale insects are composed of numerous short telotrophic ovarioles. Tropharia (trophic chambers) of </span><em>Dysmicoccus newsteadi</em> (Pseudococcidae), <span><em>Eriococcus</em><em> buxi</em></span> (Eriococcidae), <em>Cryptococcus fagisuga</em> and <span><em>Pseudochermes </em><em>fraxini</em></span> (Cryptococcidae) comprise only trophocytes (nurse cells), whereas those of <span><em>Kermes </em><em>quercus</em></span> (Kermesidae) and <em>Gossyparia spuria</em> (Eriococcidae) also contain arrested oocytes. The latter probably degenerate. It is suggested that during evolution of scale insects a gradual reduction of germ cells to 4 per cluster (3 trophocytes and 1 oocyte) took place. In light of the obtained results, anagenesis of scale insects ovarioles is discussed.</p></div>\",\"PeriodicalId\":100701,\"journal\":{\"name\":\"International Journal of Insect Morphology and Embryology\",\"volume\":\"27 3\",\"pages\":\"Pages 167-172\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0020-7322(98)00007-5\",\"citationCount\":\"29\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Insect Morphology and Embryology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0020732298000075\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Insect Morphology and Embryology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0020732298000075","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Structure of ovaries in scale insects. i. pseudococcidae, kermesidae, eriococcidae, and cryptococcidae (INSECTA, hemiptera, COCCINEA)
Developing ovaries of scale insects (Hemiptera : Coccinea) Nipaecoccus nipae (Pseudococcidae) and Cryptococcus fagisuga (Cryptococcidae) contain clusters of interconnected cells (cystocytes) that are arranged into rosettes; polyfusomes occur in the centres of the rosettes. Ovaries of the investigated adult scale insects are composed of numerous short telotrophic ovarioles. Tropharia (trophic chambers) of Dysmicoccus newsteadi (Pseudococcidae), Eriococcus buxi (Eriococcidae), Cryptococcus fagisuga and Pseudochermes fraxini (Cryptococcidae) comprise only trophocytes (nurse cells), whereas those of Kermes quercus (Kermesidae) and Gossyparia spuria (Eriococcidae) also contain arrested oocytes. The latter probably degenerate. It is suggested that during evolution of scale insects a gradual reduction of germ cells to 4 per cluster (3 trophocytes and 1 oocyte) took place. In light of the obtained results, anagenesis of scale insects ovarioles is discussed.
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