کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5157491 1500602 2017 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of both targeted and non-targeted cell wall polysaccharides in transgenic potatoes
ترجمه فارسی عنوان
ارزیابی پلی ساکارید دیواره هدفمند و غیر هدفمند در سیب زمینی تراریخته
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
In this study, we analyze 31 transgenic lines and their respective untransformed background lines to determine the transgene effects on targeted structures including the pectin components rhamnogalacturonan I (RG-I) and homogalacturonan (HG), neutral side chains (galactan/arabinangalactan), acetylation of pectin, and cellulose level. Modification arising from the pectin backbone- or pectin side chain transgenic lines either increased or decreased the HG:RG-I ratio, side chain length, and methyl esterification of pectin in the tuber cell wall. The pectin esterification transgenic line exhibited only limited side effects. The cellulose level-targeting transgenic lines yielded an unexpectedly high HG:RG-I ratio and longer pectic side chains. These results clearly demonstrate that in effects of a transgene are not restricted to the direct activity of the targeted enzyme but have consequences for the structure of the cell wall matrix. Analysis of whole cell wall structure is therefore necessary to assess the complete effect, direct and indirect, of a transgene.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 156, 20 January 2017, Pages 312-321
نویسندگان
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