Two-step, long-distance nuclear migration guided by distinct actin networks prior to plant root hair formation.

In act2/8 root hair precursor cells exhibiting the downward movement only and failed lateral movement phenotypes, both the width and relative fluorescent intensity of Lifeact-GFP–labeled lateral F-actin exhibited a decreasing trend compared with those in the wild-type and act7 cells (Fig. 2 G).

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