Low expression of an endopolygalacturonase gene in apple fruit with long-term storage potential

被引：119

作者：

Wakasa, Y

Kudo, H

Ishikawa, R

Akada, S

Senda, M

Niizeki, M

Harada, T ^{[1
]}

机构：

[1] Hirosaki Univ, Fac Agr & Life Sci, Lab Plant Breeding & Genet, Hirosaki, Aomori 0368561, Japan

[2] Hirosaki Univ, Gene Res Ctr, Hirosaki, Aomori 0368561, Japan

来源：

POSTHARVEST BIOLOGY AND TECHNOLOGY | 2006年 / 39卷 / 02期

关键词：

Malus x domestica Borkh; ethylene; firmness; polygalacturonase; storage life;

D O I：

10.1016/j.postharvbio.2005.10.005

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Flesh softening during ripening differs greatly among apple cultivars. 'Fuji', the world's most popular cultivar. shows no detectable loss of firmness even in storage at room temperature for a month, whereas 'Golden Delicious' starts softening soon after harvest. To elucidate how softening patterns differ among cultivars, we analyzed four ripening-related genes (MdACS1, MdACO1, MdPG1 and MdExp3) in 14 cultivars, which display the firmness loss pattern of either 'Fuji' or 'Golden Delicious'. All cultivars that remain firm revealed very weak or transient expression of MdPG1, irrespective of ethylene production rate and transcription levels of other genes. These results suggest that softening behavior during ripening may depend on the expression pattern of MdPG1. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：193 / 198

页数：6

共 23 条

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