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Article

Plasma membrane H+-ATPases sustain pollen tube growth and fertilization.

Nature communications - 14 May 2020

Hoffmann Robert D, Portes Maria Teresa, Olsen Lene Irene, Damineli Daniel Santa Cruz, Hayashi Maki, Nunes Custódio O, Pedersen Jesper T, Lima Pedro T, Campos Cláudia, Feijó José A, Palmgren Michael

Abstract excerpt

Pollen tubes are highly polarized tip-growing cells that depend on cytosolic pH gradients for signaling and growth. Autoinhibited plasma membrane proton (H+) ATPases (AHAs) have been proposed to energize pollen tube growth and underlie cell polarity, however, mechanistic evidence for this is lacking. Here we report that the combined loss of AHA6, AHA8, and AHA9 in Arabidopsis thaliana delays pollen germination...

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Identifiers

PMID: 32409656
DOI: 10.1038/s41467-020-16253-1
PMCID: PMC7224221

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