作者
Miho Tatsuki, Naoko Nakajima, Hiroshi Fujii, Takehiko Shimada, Michiharu Nakano, Ken-ichiro Hayashi, Hiroko Hayama, Hirohito Yoshioka, Yuri Nakamura
发表日期
2013/2/1
期刊
Journal of Experimental Botany
卷号
64
期号
4
页码范围
1049-1059
出版商
Oxford University Press
简介
The fruit of melting-flesh peach (Prunus persica L. Batsch) cultivars produce high levels of ethylene caused by high expression of PpACS1 (an isogene of 1-aminocyclopropane-1-carboxylic acid synthase), resulting in rapid fruit softening at the late-ripening stage. In contrast, the fruit of stony hard peach cultivars do not soften and produce little ethylene due to low expression of PpACS1. To elucidate the mechanism for suppressing PpACS1 expression in stony hard peaches, a microarray analysis was performed. Several genes that displayed similar expression patterns as PpACS1 were identified and shown to be indole-3-acetic acid (IAA)-inducible genes (Aux/IAA, SAUR). That is, expression of IAA-inducible genes increased at the late-ripening stage in melting flesh peaches; however, these transcripts were low in mature fruit of stony hard peaches. The IAA concentration increased suddenly just before harvest …
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