کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4388687 1618009 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina)
ترجمه فارسی عنوان
ارزیابی تحمل به علفکش Lotus corniculatus و L. tenuis برای انجام استراتژی های ریزوساختار در Humid Pampa (آرژانتین)
کلمات کلیدی
Rhizoremediation؛ گلیفوزیت؛ Agroecosystems؛ منطقه پامپا مرطوب؛ Lotus corniculatus؛ tenuis لوتوس
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی

The broad-spectrum herbicide glyphosate (N – phosphonomethylglicine) is the most common pesticide used in the Humid Pampa, the main agricultural region in Argentina. According to agronomical practices and topogeographical characteristics of the region, rhizoremediation arises as a promising technology to mitigate glyphosate impact on health and agroecosystems. Lotus corniculatus L. (birdsfoot trefoil) and Lotus tenuis Waldst. et Kit. (=Lotus glaber Mill., narrowleaf trefoil) were selected to carry out tolerance studies as the starting point of a rhizoremediation process. L. corniculatus presented the highest root and foliar tolerance to glyphosate, corresponding to 5.0 mg kg−1 and 700 g ha−1 respectively. The enzyme enolpyruvylshikimate-3-phosphate synthase (EPSP synthase) partial cDNA sequence and whole plant shikimate accumulation assay were performed on L. corniculatus in order investigate tolerance mechanisms. No amino acid substitution related to glyphosate tolerance was found on EPSP synthase cDNA sequence. The shikimate accumulation study indicates that limited uptake and/or translocation of the herbicide is the most probable tolerance mechanism. Results obtained in this study, plus the productive and adaptive advantages of L. corniculatus make it a valuable candidate to develop rhizoremediation strategies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 90, May 2016, Pages 392–398
نویسندگان
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