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Study on regulatory mechanisms of coloration of fruit of fruit trees by blue light

Research Project

Project/Area Number 23658025
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Horticulture/Landscape architecture
Research InstitutionUniversity of Tsukuba

Principal Investigator

SUGAYA Sumiko  筑波大学, 生命環境系, 教授 (90302372)

Co-Investigator(Renkei-kenkyūsha) SEKOZAWA Yoshihiko  筑波大学, 生命環境系, 助教 (90361310)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsアントシアニン / ブドウ / 青色光 / 果樹園芸学 / 果実着色 / 光
Research Abstract

To investigate the effects of blue light illumination on fruit color development after verason of fruit development, anthocyanin accumulation and mechanisms of it were analyzed using 'Kyoho' (Vitis vinifera L. x Vitis labrusca L.) plants. Grape berries were illuminated by blue LED and the effect on peel color of grapes was investigated. The result indicated that blue light promotes anthocyanin synthesis through biosynthetic enzyme activities, especially, flavonoid 3'5' hydroxilase (F3'5'H). An irradiation experiments using in vitro grape and soil planted grape trees revealed that anthocyanin accumulation was induced by blue light irradiation. The upstream region of the F3'5'H gene contains several motif sequences for cis-transcriptional factors. These results suggest that blue light irradiation would be a way to improve coloration of grape peel.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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