کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4519932 1322861 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhibition by nitric oxide of ethylene biosynthesis and lipoxygenase activity in peach fruit during storage
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Inhibition by nitric oxide of ethylene biosynthesis and lipoxygenase activity in peach fruit during storage
چکیده انگلیسی

The effects of nitric oxide (NO) on ethylene biosynthesis and lipoxygenase (LOX) activity in a climacteric peach fruit (Prunus persica (L.) Batsch., cv. Feicheng) were studied. It was observed that, in peaches treated with 5 and 10 μl l−1 NO, 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase activity, ethylene production and LOX activity were reduced. This led to the accumulation of ACC and 1-malonyl aminocyclopropane-1-carboxylic acid (MACC) during storage. There was no evidence that ACC synthase activity was affected significantly by any concentration of NO. A plausible mechanism is proposed that NO is bound to ACC oxidase to form an ACC oxidase–NO complex, which is chelated by ACC to produce an ACC–ACC oxidase–NO complex, leading to a decrease in ethylene production. The increase in concentration of ACC in NO-treated peaches may result in the redirection of ethylene to MACC production. This is a secondary effect of NO.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Postharvest Biology and Technology - Volume 42, Issue 1, October 2006, Pages 41–48
نویسندگان
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