کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2836530 1570862 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In situ localization of avenanthramide A and its biosynthetic enzyme in oat leaves infected with the crown rust fungus, Puccinia coronata f. sp. avenae
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
In situ localization of avenanthramide A and its biosynthetic enzyme in oat leaves infected with the crown rust fungus, Puccinia coronata f. sp. avenae
چکیده انگلیسی

We determined the temporal and spatial localization of the phytoalexin avenanthramide A, and its biosynthetic enzyme, hydroxycinnamoyl-CoA:hydroxyanthranilate N-hydroxy-cinnamoyltransferase (AsHHT) in oat leaves infected with the crown rust fungus. Accumulation of avenanthramide A and AsHHT was first observed predominantly in hypersensitive response (HR) cells at 36 h post inoculation (hpi), and later in adjacent cells at 48 hpi. At 120 hpi, avenanthramide A was detected in a wider area of infected tissues, but AsHHT-positive signals were only observed in the HR and adjacent cells, suggesting that avenanthramide A was synthesized around the HR cells, and then transported to other parts of the infected tissues in a center-to-periphery manner.

Figure optionsDownload as PowerPoint slideHighlights
► The phytoalexin, avenanthramide A was first synthesized at the sites of infection.
► Avenanthramide A was then transported to other parts in the infected tissues.
► PR-10 expression was also induced upon fungal infection at the very early stage.
► Further upregulation of PR-10 occurred only in the incompatible interaction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiological and Molecular Plant Pathology - Volume 76, Issues 3–4, December 2011, Pages 173–181
نویسندگان
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