{"title":"单棱藓属花粉管生长的雌蕊途径","authors":"A. Olson","doi":"10.1086/337875","DOIUrl":null,"url":null,"abstract":"The gynoecial micromorphologies of Monotropa uniflora and M. hypopitys are compared to characterize the gynoecial pathway for pollen tube growth. The receptive surface of the concave stigma is restricted to a papillate rim coated with an exudate. An internal transmitting tissue in the stigma joins the papillae with an external transmitting tissue system formed by the lining of the fluted stylar canal that may limit pollen tube growth to specific ovule-bearing placentae. Consequently, pollen tube growth is facilitated in the vicinity of the ovular micropyles.","PeriodicalId":9213,"journal":{"name":"Botanical Gazette","volume":"152 1","pages":"154 - 163"},"PeriodicalIF":0.0000,"publicationDate":"1991-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Gynoecial Pathway for Pollen Tube Growth in the Genus Monotropa\",\"authors\":\"A. Olson\",\"doi\":\"10.1086/337875\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The gynoecial micromorphologies of Monotropa uniflora and M. hypopitys are compared to characterize the gynoecial pathway for pollen tube growth. The receptive surface of the concave stigma is restricted to a papillate rim coated with an exudate. An internal transmitting tissue in the stigma joins the papillae with an external transmitting tissue system formed by the lining of the fluted stylar canal that may limit pollen tube growth to specific ovule-bearing placentae. Consequently, pollen tube growth is facilitated in the vicinity of the ovular micropyles.\",\"PeriodicalId\":9213,\"journal\":{\"name\":\"Botanical Gazette\",\"volume\":\"152 1\",\"pages\":\"154 - 163\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1991-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Botanical Gazette\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1086/337875\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Botanical Gazette","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1086/337875","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Gynoecial Pathway for Pollen Tube Growth in the Genus Monotropa
The gynoecial micromorphologies of Monotropa uniflora and M. hypopitys are compared to characterize the gynoecial pathway for pollen tube growth. The receptive surface of the concave stigma is restricted to a papillate rim coated with an exudate. An internal transmitting tissue in the stigma joins the papillae with an external transmitting tissue system formed by the lining of the fluted stylar canal that may limit pollen tube growth to specific ovule-bearing placentae. Consequently, pollen tube growth is facilitated in the vicinity of the ovular micropyles.
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