บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Inhibition of ethylene biosynthesis and action in cut carnations (Dianthus caryophyllus L.) by aminotriazole.

Altman, S.A. and Solomos, T.

Journal of the American Society for Horticultural Science. Volume 119, Number 2, Mar 1994. Pages 282-287.

1994

บทคัดย่อ

Inhibition of ethylene biosynthesis and action in cut carnations (Dianthus caryophyllus L.) by aminotriazole.

Treating 'Elliott's White' cut carnations with 50 or 100 mM aminotriazole for 4 days inhibits the respiratory climacteric and significantly extends vase life. Aminotriazole induced time- and concentration-dependent inhibition of ethylene evolution and onset of the ethylene climacteric by inhibiting ACC synthase activity. Flowers treated with 50 or 100 mM aminotriazole for 2 days exhibited concentration-dependent increases in ethylene evolution, respiratory activity, ACC synthase activity, and petal ACC content in response to the application of exogenous ethylene at 10 microliters.liter-1. Senescence-associated morphological changes, increased ACC synthase activity, ACC content, and ethylene evolution were completely inhibited in flowers treated for 4 days with 100 mM aminotriazole. Although treatment with 50 mM aminotriazole for 4 days did not completely inhibit components of the ethylene biosynthetic pathway, no morphological or respiratory responses to the application of exogenous ethylene at 10 microliters.liter-1 were observed, a result indicating that prolonged aminotriazole treatment inhibited ethylene action.