期刊
POSTHARVEST BIOLOGY AND TECHNOLOGY
卷 40, 期 2, 页码 97-105出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.postharvbio.2006.01.007
关键词
cut rose (Rosa hybrida); flower opening; ethylene; ethylene signal transduction; ETRs; CTRs; EIN3
Exogenous ethylene inhibits floral opening in cut rose (Rosa hybrida) cv. Kardinal and slightly promotes opening in cv. Samantha. We investigated ethylene production following short exposure to exogenous ethylene, and the expression of ethylene receptor genes (ETR) and a genes in the ethylene signal transduction pathway (CTR and EIN3). In cv. Kardinal the ethylene production rate was much higher than in cv. Samantha, following ethylene treatment. The expression of ETR fragments was not much affected by ethylene in cv. Kardinal but was up-regulated in cv. Samantha. Data from the literature suggest that ETR is a negative regulator. The up-regulation of ETR, after ethylene treatment, indicates that the sensitivity to ethylene is down-regulated in Samantha but not in Kardinal. No clear effect of ethylene was found on the expression of fragments of CTR and EIN3 genes. It is concluded that the inhibition of floral opening in cv. Kardinal, and its absence in cv. Samantha, can apparently be explained by a differential effect of ethylene on the expression of genes for the ethylene receptor. (C) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据