title: When two plus two should equal two.
abstract: Sexual reproduction in flowering plants is a masterpiece of cell-to-cell communication involving a unique double fertilization process and an intricate sperm delivery system. Reporting in Developmental Cell, Maruyama et al. (2013) and Völz et al. (2013) shed light on an elaborated system that coordinates sperm delivery with fertilization status.
authors.affiliation: Department of Molecular Mechanisms of Phenotypic Plasticity, Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Université de Strasbourg, F-67084 Strasbourg, France. arp.schnittger@ibmp-cnrs.unistra.fr
authors.forename: Arp
authors.initials: A
authors.lastname: Schnittger