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Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer

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Published on: October 14, 2022

INDETERMINATE DOMAIN 9 negatively regulates rice crown root development.

Yuanyuan Yang¹, Zihao Shi¹, Xuan Nie¹

¹College of Food and Biology, Jingchu University of Technology, Jingmen, Hubei, China.

Frontiers in Plant Science

|April 29, 2026

Summary

OsIDD9 negatively regulates rice crown root development. Knockout lines show enhanced growth, while over-expression lines have defects, revealing OsIDD9

Keywords:

OsCRL5 OsIDD9 OsWOX11 crown root rice uORF

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Published on: May 14, 2020

Area of Science:

Plant biology
Genetics
Molecular biology

Background:

Crown root development is crucial for rice plant architecture and nutrient uptake.
Plant-specific transcription factors regulate crown root formation, but the role of the IDD family remains unclear.

Purpose of the Study:

To elucidate the function of OsIDD9 in rice crown root development.
To identify the molecular mechanisms underlying OsIDD9's role.

Main Methods:

Genetic analysis of OsIDD9 over-expression and knockout lines.
Biochemical and molecular assays to determine gene function and regulation.

Main Results:

OsIDD9 acts as a negative regulator of crown root development.
OsIDD9 influences downstream genes like OsWOX11 and OsCRL5.
OsIDD9 expression is regulated at the translational level by an upstream open reading frame (uORF).

Conclusions:

OsIDD9 plays a critical role in rice crown root development through a specific genetic pathway.
This study provides insights into the complex interactions of transcription factors in rice root development.