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Conserved molecular components for pollen tube reception and fungal invasion.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Kessler Sharon A, Shimosato-Asano Hiroko, Keinath Nana F, Wuest Samuel E, Ingram Gwyneth, Panstruga Ralph, Grossniklaus Ueli,
Project The genetic and molecular basis of gametogenesis and maternal effects in arabidopsis
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Original article (peer-reviewed)

Journal Science (New York, N.Y.)
Volume (Issue) 330(6006)
Page(s) 968 - 71
Title of proceedings Science (New York, N.Y.)
DOI 10.1126/science.1195211

Abstract

During sexual reproduction in flowering plants such as Arabidopsis, a tip-growing pollen tube (PT) is guided to the synergid cells of the female gametophyte, where it bursts and releases the two sperm. Here we show that PT reception and powdery mildew (PM) infection, which involves communication between a tip-growing hypha and a plant epidermal cell, share molecular components. NORTIA (NTA), a member of the MLO family originally discovered in the context of PM resistance, and FERONIA (FER), a receptor-like kinase, both control PT reception in synergids. Homozygous fer mutants also display PM resistance, revealing a new function for FER and suggesting that conserved components, such as FER and distinct MLO proteins, are involved in both PT reception and PM infection.
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