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. 2017 Nov;3(11):854-858.
doi: 10.1038/s41477-017-0039-z. Epub 2017 Oct 30.

Arabidopsis BTB/POZ Protein-Dependent PENETRATION3 Trafficking and Disease Susceptibility

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Arabidopsis BTB/POZ Protein-Dependent PENETRATION3 Trafficking and Disease Susceptibility

Hailiang Mao et al. Nat Plants. .

Abstract

The outermost cell layer of plant roots (epidermis) constantly encounters environmental challenges. The epidermal outer plasma membrane domain harbours the PENETRATION3 (PEN3)/ABCG36/PDR8 ATP-binding cassette transporter that confers non-host resistance to several pathogens. Here, we show that the Arabidopsis ENDOPLASMIC RETICULUM-ARRESTED PEN3 (EAP3) BTB/POZ-domain protein specifically mediates PEN3 exit from the endoplasmic reticulum and confers resistance to a root-penetrating fungus, providing prime evidence for BTB/POZ-domain protein-dependent membrane trafficking underlying disease resistance.

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