Journal of Integrative Plant Biology, 59 (7) : 454ĘC458, July 2017     Research Article

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Arabidopsis Forkhead-Associated Domain Protein 3 negatively regulates peroxisome division[OA]

Mintu Desai1†, Ronghui Pan1 and Jianping Hu1,2
1MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA
2Plant Biology Department, Michigan State University, East Lansing, MI 48824, USA

Present address: Thermo Fisher Scientific, 7335 Executive Way, Frederick, MD 21704, USA

Correspondence:
E-mail: Jianping Hu (huji@msu.edu)

Online on 23 Mar 2017 at www.jipb.net and www.wileyonlinelibrary.com/journal/jipb

Abstract

Peroxisomes are ubiquitous and dynamic eukaryotic organelles capable of altering their abundance in response to environmental and developmental cues, yet the regulatory mechanism of plant peroxisome division/proliferation is unclear. To identify transcriptional regulators of the peroxisome division factor gene PEX11b, we performed a nuclear pull-down experiment and identified Arabidopsis Forkhead-Associated Domain Protein 3 (FHA3) as a novel protein that binds to the promoter of PEX11b. Our data supported the conclusion that, in contrast to the previously identified HY5 HOMOLOG (HYH) protein that promotes the transcription of PEX11b, FHA3 is a negative regulator of PEX11b expression and peroxisome division.


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Received 7 Feb 2017   Accepted 21 Mar 2017
© 2017 Institute of Botany, Chinese Academy of Sciences


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