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Articles

MECHANISM OF SENESCENCE IN CARNATION FLOWERS

Article number
669_24
Pages
191 – 198
Language
English
Abstract
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.

Publication
VIII International Symposium on Postharvest Physiology of Ornamental Plants
Authors
S. Satoh, K. Shibuya, K. Waki, Y. Kosugi
Keywords
ACC synthase, ACC oxidase, cysteine proteinase, ethylene production, gynoecium, petal wilting.
Full text
https://doi.org/10.17660/ActaHortic.2005.669.24
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