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She's the boss: signaling in pollen tube reception.

Type of publication Peer-reviewed
Publikationsform Review article (peer-reviewed)
Author Kessler Sharon A, Grossniklaus Ueli,
Project The genetic and molecular basis of gametogenesis and maternal effects in arabidopsis
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Review article (peer-reviewed)

Journal Current opinion in plant biology
Volume (Issue) 14(5)
Page(s) 622 - 7
Title of proceedings Current opinion in plant biology
DOI 10.1016/j.pbi.2011.07.012

Abstract

In angiosperms, the sperm cells are carried within the pollen tubes (male gametophytes) to the female gametophyte so that double fertilization can occur. The female gametophyte exerts control over the male, with specialized cells known as synergids guiding the pollen tubes and controlling their behavior when they enter the female gametophyte so that the sperm cells can be delivered to the egg and central cell. Upon pollen tube arrival at the ovule, signal transduction cascades mediated by receptor-like kinases are initiated in both the synergid and the tip of the pollen tube, leading to synergid cell death and pollen tube rupture. In this review, we discuss the role of these receptors and of newly discovered members of the pollen tube reception pathway.
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