BookZengxiang Ge.
Summary: This book summarizes the latest studies on plant reproduction and multiple aspects of signaling in reproductive development. It also presents the most advanced processes in CrRLK1L receptor and RALF peptide studies during plant development. Focusing on signaling in pollen tube integrity and sperm release regulation, it provides significant insights into the BUPS-ANX receptor complex and the corresponding ligands RALF4/19 to promote pollen tube growth with proper cell integrity. It also proposes a working model of female tissue-derived RALF34 competing with RALF4/19 from the BUPS-ANX to trigger pollen tube rupture and sperm release. Offering a detailed overview of the spatiotemporal regulation mechanism underlying the control of pollen tube integrity and sperm release, the book fills a major gap in our understanding of plant reproductive processes, and as such is a valuable resource for those working in the area of plant signaling.
Contents:
Intro
Supervisor's Foreword
Abstract
Parts of this book have been published in the following articles:Ge, Z., Bergonci, T., Zhao, Y.L., Zou, Y.J., Du, S., Liu, M.C., Luo, X.J., Ruan, H., Garcia-Valencia, L.E., Zhong, S., et al. (2017). Arabidopsis pollen tube integrity and sperm release are regulated by RALF-mediated signaling. Science 358, 1596-1599.Ge, Z., Cheung, A.Y., and Qu, L-J. (2019). Pollen tube integrity regulation in flowering plants: insights from molecular assemblies on the pollen tube surface. New Phytol. 222, 687-693
Acknowledgments
Contents
Abbreviations 1 Review of Cell-Cell Communication in Plant Reproduction
1.1 Overview of Plant Reproduction
1.1.1 Interaction Between Pollen and the Stigma
1.1.2 Pollen Tube Growth in the Transmitting Tract
1.1.3 Pollen Tube Guidance
1.1.4 Pollen Tube Reception
1.1.5 Male and Female Gametophyte Fusion
1.2 Plant Peptides and RLKs-Mediated Signaling in Plant Fertilization
1.3 Summary and Perspective
References
2 Receptor-Like Kinases BUPS1/2 are Involved in Pollen Tubes Integrity Maintenance in Arabidopsis
2.1 Introduction
2.2 Materials and Methods
2.2.1 Plant Material 2.2.2 Strains and Plasmids
2.2.3 Chemicals and Reagents
2.2.4 Methods
2.3 Results
2.3.1 Expression Pattern and Subcellular Localization of BUPS1/2
2.3.2 Using CRISPR/Cas9 Technology to Knock Out BUPS1/2
2.3.3 bups1 and bups1 bups2 Mutant Show Fertility Defect
2.3.4 bups1 and bups1 bups2 are Male Sterile
2.3.5 Pollen Development of bups1 or bups1 bups2 is Normal
2.3.6 The Pollen Tube of bups1 and bups1 bups2 Rupture Prematurely
2.3.7 BUPS1/2 Interact with ANX1/2 to Form a Receptor Complex
2.4 Discussion
References 3 RALF4/19 are Autocrine Signals to Maintain Pollen Tubes Integrity
3.1 Introduction
3.2 Materials and Methods
3.2.1 Plant Material
3.2.2 Strains and Plasmids
3.2.3 Chemicals and Reagents
3.2.4 Methods
3.3 Results
3.3.1 Expression Pattern and Subcellular Localization of RALF4/19
3.3.2 Using CRISPR/Cas9 Technology to Knock Out RALF4/19
3.3.3 ralf4 ralf19 Double Mutants are Male Sterile
3.3.4 ralf4 ralf19 Exhibits bups1 bups2-like Phenotypes
3.3.5 RALF4/19 Interact with BUPS1/2 Ectodomains
3.3.6 RALF4/19 Show High Affinity to ANX1/2
3.4 Discussion