122 citations
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May 2010 in “Plant Physiology” This study found that expressing certain PIN proteins in Arabidopsis root hairs inhibited growth by decreasing auxin levels, while PIN5 slightly stimulated growth, demonstrating differential effects on auxin transport.
44 citations
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May 2008 in “Plant journal” This study found that D'orenone blocks root hair growth by increasing PIN2 protein abundance, leading to reduced auxin concentration, but external auxin can reverse these effects.
28 citations
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March 2018 in “Scientia Horticulturae” This study found that 3-indolebutyric acid (IBA) increased root-hair growth in trifoliate orange by elevating auxin levels, while 2-naphthoxyacetic acid (2-NOA) had the opposite effect, inhibiting root-hair growth.
84 citations
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June 2010 in “The Plant Cell” In this study, disruptions in phospholipase A2 activity in Arabidopsis thaliana significantly impaired the plasma membrane localization of PIN proteins, affecting auxin transport and root development.
16 citations
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September 2022 in “Plant Cell & Environment” This study suggests that iron influences auxin signaling through vesicle trafficking, particularly affecting PIN2 recycling, which may play a role in phosphate starvation-induced root hair growth in Arabidopsis.