{"title":"银杏生殖过程中分泌液的秘密","authors":"D. Mao, Han Tang, Nan Xiao, Li Wang","doi":"10.1080/07352689.2022.2066805","DOIUrl":null,"url":null,"abstract":"Abstract Reproduction is an essential process for all organisms. Although our understanding of the reproductive mechanism in angiosperms has rapidly advanced in recent years, it still lags behind that of gymnosperms. As an ancient gymnosperm, Ginkgo biloba has a remarkable evolutionary history and occupies an important phylogenetic position, representing one of the most ancient and primitive modes of reproduction among seed plants. G. biloba is an archegoniate, where an egg cell develops inside an archegonium; it has a particular pollen chamber and archegonial chamber along with flagellated gametes (spermatozoids). Among these processes, secretions play an important role. In this study, we review the progress on understanding the mechanisms underlying the production and function of pollination drops (PDs), and fertilization fluid in G. biloba. We also highlight recent achievements that have considerably advanced our understanding of the interactions between PDs and pollen, and how PDs are endogenously and intracellularly transported. Finally, we discuss novel insights into the small RNAs of PD transport and the mechanisms of precisely guiding pollen tube growth in G. biloba. By reviewing these results, we demonstrate the structural patterns of G. biloba pollination and fertilization, thus reproducing the uniqueness of the sexual reproduction of ancient plants.","PeriodicalId":10854,"journal":{"name":"Critical Reviews in Plant Sciences","volume":null,"pages":null},"PeriodicalIF":6.0000,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Uncovering the Secrets of Secretory Fluids During the Reproductive Process in Ginkgo biloba\",\"authors\":\"D. Mao, Han Tang, Nan Xiao, Li Wang\",\"doi\":\"10.1080/07352689.2022.2066805\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Reproduction is an essential process for all organisms. Although our understanding of the reproductive mechanism in angiosperms has rapidly advanced in recent years, it still lags behind that of gymnosperms. As an ancient gymnosperm, Ginkgo biloba has a remarkable evolutionary history and occupies an important phylogenetic position, representing one of the most ancient and primitive modes of reproduction among seed plants. G. biloba is an archegoniate, where an egg cell develops inside an archegonium; it has a particular pollen chamber and archegonial chamber along with flagellated gametes (spermatozoids). Among these processes, secretions play an important role. In this study, we review the progress on understanding the mechanisms underlying the production and function of pollination drops (PDs), and fertilization fluid in G. biloba. We also highlight recent achievements that have considerably advanced our understanding of the interactions between PDs and pollen, and how PDs are endogenously and intracellularly transported. Finally, we discuss novel insights into the small RNAs of PD transport and the mechanisms of precisely guiding pollen tube growth in G. biloba. By reviewing these results, we demonstrate the structural patterns of G. biloba pollination and fertilization, thus reproducing the uniqueness of the sexual reproduction of ancient plants.\",\"PeriodicalId\":10854,\"journal\":{\"name\":\"Critical Reviews in Plant Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.0000,\"publicationDate\":\"2022-03-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Critical Reviews in Plant Sciences\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1080/07352689.2022.2066805\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Critical Reviews in Plant Sciences","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/07352689.2022.2066805","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
Uncovering the Secrets of Secretory Fluids During the Reproductive Process in Ginkgo biloba
Abstract Reproduction is an essential process for all organisms. Although our understanding of the reproductive mechanism in angiosperms has rapidly advanced in recent years, it still lags behind that of gymnosperms. As an ancient gymnosperm, Ginkgo biloba has a remarkable evolutionary history and occupies an important phylogenetic position, representing one of the most ancient and primitive modes of reproduction among seed plants. G. biloba is an archegoniate, where an egg cell develops inside an archegonium; it has a particular pollen chamber and archegonial chamber along with flagellated gametes (spermatozoids). Among these processes, secretions play an important role. In this study, we review the progress on understanding the mechanisms underlying the production and function of pollination drops (PDs), and fertilization fluid in G. biloba. We also highlight recent achievements that have considerably advanced our understanding of the interactions between PDs and pollen, and how PDs are endogenously and intracellularly transported. Finally, we discuss novel insights into the small RNAs of PD transport and the mechanisms of precisely guiding pollen tube growth in G. biloba. By reviewing these results, we demonstrate the structural patterns of G. biloba pollination and fertilization, thus reproducing the uniqueness of the sexual reproduction of ancient plants.
期刊介绍:
Critical Reviews in Plant Sciences focuses on presenting in-depth and up-to-date reviews of timely and/or cutting-edge subjects in the broad discipline of plant science, ranging from molecular biology/biochemistry through the areas of cell biology, plant pathology and physiology, genetics, classical botany, and ecology, to practical agricultural applications. Articles in the journal provide an up-to-date literature base for researchers and students, pointing the way towards future research needs. The journal is also a significant source of credible, objective information to aid decision makers at all levels.