- 건국대학교

	KU Research Team Identifies GAZ Gene
	관리자		833		2016.03.15

A KU research team led by College of Bioscience and Biotechnology Professor Jun Lim identified a previously uncharacterized C2H2-type zinc finger gene, whose expression is regulated by abscisic acid (ABA) and gibberellin (GA), and named it GA- and ABA-responsive zinc finger (GAZ) gene. ABA is known as a stress hormone as it controls plants from seed germination and development in adverse environmental conditions, such as high concentration of salt and low temperature. On the other hand, GA influences plant development and contributed to the green revolution through research on early growth of plants. The team also discovered synergistic interactions between ABA and GA as opposed to the well-documented antagonistic interactions. The results were published in an article titled “Interplay between ABA and GA Modulates the Timing of Asymmetric Cell Divisions in the Arabidopsis Root Ground Tissue” in the March 2016 issues of Molecular Plant published by Cell Press. Through a joint study with the National University of Singapore, the research team also identified that SEUSS integrates GA signaling with transcriptional inputs from the SHR-SCR-SCL3 module to regulate middle cortex formation. The research was also published in the March 2016 issue of Plant Physiology under the title “SEUSS Integrates Gibberellin Signaling with Transcriptional Inputs from the SHR-SCR-SCL3 Module to Regulate Middle Cortex Formation in the Arabidopsis Root.” “ABA and GA are critical throughout the entire life cycle of plants, and our research is meaningful in that we have suggested a new mechanism in how the interaction between the two influences plant development,” said Professor Lim. “We have gained confidence in competing with globally recognized research teams in the field, and I hope that our continued research can be introduced in textbooks in plant sciences and fundamentals of biology.” <img style="margin-left: auto; display: block; margin-right: auto;" alt="" src="ArticleFile.do?id=11654213" />

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