{"title":"Egg Activation in Higher Plants: The Making of a New Generation in Angiosperms","authors":"Wei Deng, Yun Ling Xie, Hui Qiao Tian, Xue Yi Zhu","doi":"10.1080/07352689.2023.2268385","DOIUrl":null,"url":null,"abstract":"AbstractThe male and female gametes of higher plants are immobile, but compatible gametes can recognize, attach, and fuse to fulfill fertilization and start embryogenesis after sperm cells are released from the pollen tube. The two fusions of egg and central cells with two sperm cells are controlled by accurate regulation mechanisms that ensure one-to-one gamete fusion. Many of the molecules involved in this process remain unknown, especially the egg cell proteins that are responsible for sperm–egg recognition, attachment, and fusion. The cytoplasm of sperm cells can trigger egg activation without the fusion of male and female gamete nuclei, suggesting that a gene controlling egg division is suppressed in the absence of fertilization. Fertilization in higher plants induces structural, physiological, and molecular biological changes in the fused egg, which are collectively known as egg activation. This review focuses on the early changes that occur in the fused egg of higher plants before fusion of the nuclei of male and female gametes.Keywords: Angiospermsegg activationegg divisionfertilizationsperm activation AcknowledgmentsThe authors thank Jennifer Smith, PhD, from Liwen Bianji (Edanz) (www.liwenbianji.cn/) for editing the English text of this manuscript.Disclosure statementThe authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.Additional informationFundingThis work was supported by the National Natural Science Foundation of China [Nos. 31170289].","PeriodicalId":10854,"journal":{"name":"Critical Reviews in Plant Sciences","volume":null,"pages":null},"PeriodicalIF":6.0000,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Critical Reviews in Plant Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/07352689.2023.2268385","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
AbstractThe male and female gametes of higher plants are immobile, but compatible gametes can recognize, attach, and fuse to fulfill fertilization and start embryogenesis after sperm cells are released from the pollen tube. The two fusions of egg and central cells with two sperm cells are controlled by accurate regulation mechanisms that ensure one-to-one gamete fusion. Many of the molecules involved in this process remain unknown, especially the egg cell proteins that are responsible for sperm–egg recognition, attachment, and fusion. The cytoplasm of sperm cells can trigger egg activation without the fusion of male and female gamete nuclei, suggesting that a gene controlling egg division is suppressed in the absence of fertilization. Fertilization in higher plants induces structural, physiological, and molecular biological changes in the fused egg, which are collectively known as egg activation. This review focuses on the early changes that occur in the fused egg of higher plants before fusion of the nuclei of male and female gametes.Keywords: Angiospermsegg activationegg divisionfertilizationsperm activation AcknowledgmentsThe authors thank Jennifer Smith, PhD, from Liwen Bianji (Edanz) (www.liwenbianji.cn/) for editing the English text of this manuscript.Disclosure statementThe authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.Additional informationFundingThis work was supported by the National Natural Science Foundation of China [Nos. 31170289].
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.