Male-Female Crosstalk during Pollen Germination, Tube Growth and Guidance, and Double Fertilization

作     者：Thomas Dresselhaus Noni Franklin-Tong 

作者机构：Cell Biology and Plant Biochemistry Biochemie-Zentrum Regensburg University of Regensburg Universitatsstrabe 31 D-93053 Regensburg Germany School of Biosciences University of Birmingham. Edgbaston Birmingham B15 2TT UK 

出 版 物：《Molecular Plant》 (分子植物（英文版）)

年 卷 期：2013年第6卷第4期

页      面：1018-1036页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 0902[农学-园艺学] 071002[理学-动物学] 090201[农学-果树学] 

基　　金：supported by grants from the German Research Council (DFG) supported by grants from the Biotechnology and Biological Sciences Research Council (BBSRC) 

主　　题：pollen tube transmitting tract self-incompatibility fertilization cysteine-rich proteins (CRPs) calcium polyspermy. 

摘      要：Sperm cells of flowering plants are non-motile and thus require transportation to the egg apparatus via the pollen tube to execute double fertilization. During its journey, the pollen tube interacts with various sporophytic cell types that support its growth and guide it towards the surface of the ovule. The final steps of tube guidance and sperm delivery are controlled by the cells of the female gametophyte. During fertilization, cell-cell communication events take place to achieve and maximize reproductive success. Additional layers of crosstalk exist, including self-recognition and specialized processes to prevent self-fertilization and consequent inbreeding. In this review, we focus on intercellular communication between the pollen grain/pollen tube including the sperm cells with the various sporophytic maternal tissues and the cells of the female gametophyte. Polymorphic-secreted peptides and small proteins, especially those belonging to various subclasses of small cysteine-rich proteins （CRPs）, reactive oxygen species （ROS）/NO signaling, and the second messenger Ca2＋, play center stage in most of these processes.