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Studies on the regulatory mechanism of petal senescence by micro RNA in ethylene-independent flowers

Research Project

Project/Area Number 25850026
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Horticultural science
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Shibuya Kenichi  国立研究開発法人農業・食品産業技術総合研究機構, 野菜花き研究部門花き生産流通研究領域, 上級研究員 (10462532)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords花弁老化 / アサガオ / マイクロRNA
Outline of Final Research Achievements

While the phytohormone ethylene is known to play a crucial role in petal senescence in some plant species, little is known about the regulation of ethylene-independent petal senescence. In Japanese morning glory cv. Violet, an ethylene-independent flower, the abundance of microRNA156 (miR156) increased in senescing petals. We analyzed a role of potential target genes of miR156, SQUAMOSA PROMOTER BINDING PROTEIN LIKE (SPL) homologs, in petal senescence. The results suggest that the SPL genes are not involved in the regulation of petal senescence; however, the SPL genes may play a role in the regulation of flowering.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report

URL: 

Published: 2014-07-25   Modified: 2019-07-29  

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