The Arabidopsis EIN2 Restricts Organ Growth by Retarding Cell Expansion

Overview

Journal Plant Signal Behav

Specialty Biology

Date 2015 Jun 4

PMID 26039475

Citations 12

Authors

Guanping Feng

Gang Liu

Jianhua Xiao

Affiliations

Soon will be listed here.

Abstract

The growth of plant organ to its characteristic size is a fundamental developmental process, but the mechanism is still poorly understood. Plant hormones play a great role in organ size control by modulating cell division and/or cell expansion. Ethylene insensitve 2 (EIN2) was first identified by a genetic screen for ethylene insensitivity and is regarded as a central component of ethylene signaling, but its role in cell growth has not been reported. Here we demonstrate that changed expression of EIN2 led to abnormity of cell expansion by morphological and cytological analyses of EIN2 loss-of-function mutants and the overexpressing transgenic plant. Our findings suggest that EIN2 controls final organ size by restricting cell expansion.

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