2012 Fiscal Year Final Research Report

Effect of Auxin on ethylene biosynthesis of peach fruit ripening

Research Project

Project/Area Number	22580044
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Horticulture/Landscape architecture
Research Institution	National Agriculture and Food Research Organization
Principal Investigator	TATSUKI Miho 独立行政法人農業・食品産業技術総合研究機構, 果樹研究所栽培・流通利用研究領域, 主任研究員 (10355381)
Co-Investigator(Renkei-kenkyūsha)	NAKAJIMA Naoko 独立行政法人農業・食品産業技術研究機構, 果樹研究所栽培・流通利用研究領域, 主任研究員 (20332299)
Project Period (FY)	2010 – 2012
Keywords	果樹
Research Abstract	The fruit of stony hard peach cultivars do not soften and produce little ethylene due to low expression of PpACS1. The IAA concentration increased suddenly just before harvest time in melting flesh peaches. In contrast, the IAA concentration did not increase in stony hard peaches. These observations indicate that suppression of PpACS1 expression at the late-ripening stage of stony hard peach may result from a low level of IAA, and a high concentration of IAA is required to generate a large amount of system 2 ethylene in peaches.

(2 results)