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2014 Fiscal Year Final Research Report

Analysis of molecular mechanisms controlling shoot branching

Planned Research

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Project AreaIntegrated analysis of strategies for plant survival and growth in response to global environmental changes
Project/Area Number 22119008
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionThe University of Tokyo

Principal Investigator

KYOZUKA Junko  東京大学, 農学生命科学研究科, 准教授 (90273838)

Project Period (FY) 2010-04-01 – 2015-03-31
Keywordsイネ / 分枝 / 腋芽休眠 / ストリゴラクトン / 穂の分枝 / TAWAWA1
Outline of Final Research Achievements

Dormancy of the axillary buds and shoot branching in the inflorescence were analyzed at a molecular level. First, an experimental system to analyze the bud dormancy was established. By using this system, it was found that cell divisions were stopped in the whole area of the buds when they go to the dormancy state. On the other hand, cell division restarts when buds start to grow. Microarray analysis using laser dissected buds showed a possibility that ABA, Jasmonic acids and plant specific class of cell cycle inhibitors work downstream of Strigolactonn to control bud dormancy.

Free Research Field

植物分子遺伝

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Published: 2016-06-03  

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