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Updated: Jan 28, 2026
07:23
Describing a Transcription Factor Dependent Regulation of the MicroRNA Transcriptome
Published on: June 15, 2016
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Multiple transcriptional factors control stomata development in rice
Zhongliang Wu1, Liang Chen1, Qi Yu1
1MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
The New Phytologist
|March 3, 2019
Summary
Researchers identified key rice genes controlling stomatal development, crucial for plant gas exchange. Understanding these transcriptional factors (TFs) in grasses like rice advances knowledge of unique stomatal formation.
Area of Science:
- Plant Biology
- Genetics
- Developmental Biology
Background:
- Grass stomata are vital for gas exchange and water balance in dynamic environments.
- While stomatal development in Arabidopsis is well-studied, mechanisms in grasses remain unclear.
Purpose of the Study:
- To elucidate the molecular mechanisms governing stomatal development in rice (Oryza sativa).
- To characterize the functions of key transcriptional factors (TFs) in regulating each stage of grass stomatal development.
Main Methods:
- Utilized genome editing and T-DNA insertion lines in rice to knock out key TFs.
- Performed genetic and biochemical assays to determine TF functions.
Main Results:
- OsSPCH/OsICE is essential for stomatal lineage initiation.
- OsMUTE/OsICE controls meristemoid to guard mother cell (GMC) transition.
- OsFAMA/OsICE influences subsidiary mother cell division and stoma differentiation.
- OsFLP regulates GMC symmetrical division orientation.
- OsSCR/OsSHR controls stomatal lineage initiation and subsidiary cell formation.
- OsSPCH and OsMUTE activate OsSCR transcription.
Conclusions:
- Identified master regulatory TFs controlling rice stomatal development stages.
- Findings provide insights into evolutionary reprogramming of stomatal mechanisms across species.
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