Mechanism of senescence in carnation flowers

被引：11
作者：
Satoh, S [1 ]
Shibuya, K [1 ]
Waki, K [1 ]
Kosugi, Y [1 ]
机构：
[1] Tohoku Univ, Lab Environm Biotechnol, Grad Sch Agr Sci, Sendai, Miyagi 9818555, Japan
来源：
Proceedings of the VIIIth International Symposium on Postharvest Physiology of Ornamental Plants | 2005年 / 669期
关键词：
ACC synthase; ACC oxidase; cysteine proteinase; ethylene production; gynoecium; petal wilting; ETHYLENE BIOSYNTHETIC GENES; 1-AMINOCYCLOPROPANE-1-CARBOXYLATE SYNTHASE; PETAL SENESCENCE; EXPRESSION; GYNOECIUM; ENZYMES; PATHWAY; OVARY; ACC;
D O I：
10.17660/ActaHortic.2005.669.24
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Senescence of carnation flowers is characterized by autocatalytic ethylene production from petals and subsequent wilting of the petals. Recent studies on the regulation of ethylene production and wilting in senescing carnation flowers revealed that (1) petal senescence is triggered by ethylene produced from the gynoecium during natural senescence, (2) there are two subsets of ethylene responses in the petals; one responsible for autocatalytic ethylene production and the other for wilting, and (3) in the petals ACC oxidase (DC-ACO1) and ACC synthase (DC-ACS1) genes are sequentially in this order. The expression of the DC-ACO1 gene probably affects that of the DC-ACS1 gene.
引用
收藏
页码：191 / 198
页数：8
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