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Article

A unique mutation in PIN-FORMED1 and a genetic pathway for reduced sensitivity of Arabidopsis roots to N-1-naphthylphthalamic acid.

Physiologia plantarum - 1 Jan 2000

Huang Minhua, Chen Jie, Yang Xinxing, Zheng Yanyan, Ma Yuan, Sun Kai, Han Ning, Bian Hongwu, Qiu Ting, Wang Junhui

Abstract excerpt

The small chemical N-1-naphthylphthalamic acid (NPA) has long been used as a polar auxin transport inhibitor. Recent biochemical and structural investigations have revealed that this molecule competes with the auxin IAA (indole-3-acetic acid) inside the PIN-FORMED auxin efflux carriers. However, the existence of any mutations in PIN family proteins capable of uncoupling the docking of IAA from NPA remains...

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PMID: 38148206
DOI: 10.1111/ppl.14120

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