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Article

The exocyst subunits OsEXO70L2 and OsSEC3A regulate root development through modulating OsPIN1a/b-mediated auxin distribution in rice.

Proceedings of the National Academy of Sciences of the United States of America - 23 Jun 2026

Tu Ranran, Wang Hong, Zou Qinwen, Sun Zhihao, Wu Jiajun, Wu Duo, Shen Wenqiang, You Jing, Xiao Zan, Hu Jian, Xie Ziyu, Wang Nan, Zhang Ting, He Guanghua

Abstract excerpt

Exocyst complex-mediated vesicle trafficking is essential for plant growth and development, yet its roles in crop root development remain poorly understood. Previously, we showed that mutation of the exocyst subunit encoded gene OsEXO70L2 leads to reduced root length in the short-root 1 (sr1) mutant, but the underlying mechanism was unclear. Here, we demonstrate that OsEXO70L2 interacts with another exocyst...

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Identifiers

PMID: 42301781
DOI: 10.1073/pnas.2602053123
PMCID: PMC13291659

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The exocyst subunits OsEXO70L2 and OsSEC3A regulate root development through modulating OsPIN1a/b-mediated auxin distribution in rice.PMID 42301781Read ↗

The t-SNARE protein OsSYP132 is required for vesicle fusion and root morphogenesis in rice.Semantic proximity Read ↗

SEC3A acts as an effector of RabE1b to regulate auxin transport in arabidopsis.Semantic proximity Read ↗

A broadly conserved NERD genetically interacts with the exocyst to affect root growth and cell expansion.Semantic proximity Read ↗

Mutations in exocyst complex subunit SEC6 gene impaired polar auxin transport and PIN protein recycling in Arabidopsis primary root.Semantic proximity Read ↗

The roothairless1 gene of maize encodes a homolog of sec3, which is involved in polar exocytosis.Semantic proximity Read ↗

AtEXO70A1, a member of a family of putative exocyst subunits specifically expanded in land plants, is important for polar growth and plant development.Semantic proximity Read ↗

The Physcomitrella patens exocyst subunit EXO70.3d has distinct roles in growth and development, and is essential for completion of the moss life cycle.Semantic proximity Read ↗

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Disruption of OsEXO70A1 Causes Irregular Vascular Bundles and Perturbs Mineral Nutrient Assimilation in Rice.Semantic proximity Read ↗

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