Analysis of novel regulatory mechanisms for plant stem growth

2014 Fiscal Year Final Research Report

• Project/Area Number: 24570050
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Nagoya University (2013-2014); Nara Institute of Science and Technology (2012)
• Principal Investigator: UCHIDA Naoyuki 名古屋大学, トランスフォーマティブ生命分子研究所, 特任准教授 (40467692)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 受容体 / リガンド / シロイヌナズナ

Outline of Final Research Achievements

In this project, we aimed to identify novel genes that regulate stem growth of plants. To that purpose, we used er mutant and epfl4 epfl6 mutnat. By comparing wild type, er and epfl4 epfl6 plants, it was revealed that cell proliferation decreases around the tip of stems in mutants compared with wild type. Then by performing comprehensive gene expression analysis, we identified a novel receptor gene whose expression level is down-regulated in mutants. Because there is a similar gene to the identified gene, we made the double mutant for these two genes. The double mutant showed defects in stem growth, indicating that these receptor genes play a important role in the regulation of stem growth. Thus, we achieved the goal of this project, that is, identification of novel genes that regulate stem growth.

Free Research Field

植物発生遺伝学