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Rho-of-plant activated root hair formation requires Arabidopsis YIP4a/b gene function.


ABSTRACT: Root hairs are protrusions from root epidermal cells with crucial roles in plant soil interactions. Although much is known about patterning, polarity and tip growth of root hairs, contributions of membrane trafficking to hair initiation remain poorly understood. Here, we demonstrate that the trans-Golgi network-localized YPT-INTERACTING PROTEIN 4a and YPT-INTERACTING PROTEIN 4b (YIP4a/b) contribute to activation and plasma membrane accumulation of Rho-of-plant (ROP) small GTPases during hair initiation, identifying YIP4a/b as central trafficking components in ROP-dependent root hair formation.

SUBMITTER: Gendre D 

PROVIDER: S-EPMC6432664 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Rho-of-plant activated root hair formation requires <i>Arabidopsis YIP4a/b</i> gene function.

Gendre Delphine D   Baral Anirban A   Dang Xie X   Esnay Nicolas N   Boutté Yohann Y   Stanislas Thomas T   Vain Thomas T   Claverol Stéphane S   Gustavsson Anna A   Lin Deshu D   Grebe Markus M   Bhalerao Rishikesh P RP  

Development (Cambridge, England) 20190311 5


Root hairs are protrusions from root epidermal cells with crucial roles in plant soil interactions. Although much is known about patterning, polarity and tip growth of root hairs, contributions of membrane trafficking to hair initiation remain poorly understood. Here, we demonstrate that the trans-Golgi network-localized YPT-INTERACTING PROTEIN 4a and YPT-INTERACTING PROTEIN 4b (YIP4a/b) contribute to activation and plasma membrane accumulation of Rho-of-plant (ROP) small GTPases during hair ini  ...[more]

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