Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina)
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 technolo...
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todo:paper_09258574_v90_n_p392_Massot2023-10-03T15:46:30Z Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina) Massot, F. Smith, M.E. Vitali, V.A. Giulietti, A.M. Merini, L.J. Agroecosystems Glyphosate Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Ecosystems Weed control Agro-ecosystems Glyphosates Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Herbicides agricultural ecosystem bioaccumulation bioassay biodegradation enzyme activity glyphosate herb microbial activity tolerance Argentina Pampas Lotus corniculatus Lotus glaber Lotus oblongifolius Lotus tenuis 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. © 2016 Elsevier B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09258574_v90_n_p392_Massot |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Agroecosystems Glyphosate Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Ecosystems Weed control Agro-ecosystems Glyphosates Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Herbicides agricultural ecosystem bioaccumulation bioassay biodegradation enzyme activity glyphosate herb microbial activity tolerance Argentina Pampas Lotus corniculatus Lotus glaber Lotus oblongifolius Lotus tenuis |
| spellingShingle |
Agroecosystems Glyphosate Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Ecosystems Weed control Agro-ecosystems Glyphosates Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Herbicides agricultural ecosystem bioaccumulation bioassay biodegradation enzyme activity glyphosate herb microbial activity tolerance Argentina Pampas Lotus corniculatus Lotus glaber Lotus oblongifolius Lotus tenuis Massot, F. Smith, M.E. Vitali, V.A. Giulietti, A.M. Merini, L.J. Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina) |
| topic_facet |
Agroecosystems Glyphosate Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Ecosystems Weed control Agro-ecosystems Glyphosates Humid Pampa region Lotus corniculatus Lotus tenuis Rhizoremediation Herbicides agricultural ecosystem bioaccumulation bioassay biodegradation enzyme activity glyphosate herb microbial activity tolerance Argentina Pampas Lotus corniculatus Lotus glaber Lotus oblongifolius Lotus tenuis |
| description |
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. © 2016 Elsevier B.V. |
| format |
JOUR |
| author |
Massot, F. Smith, M.E. Vitali, V.A. Giulietti, A.M. Merini, L.J. |
| author_facet |
Massot, F. Smith, M.E. Vitali, V.A. Giulietti, A.M. Merini, L.J. |
| author_sort |
Massot, F. |
| title |
Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina) |
| title_short |
Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina) |
| title_full |
Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina) |
| title_fullStr |
Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina) |
| title_full_unstemmed |
Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina) |
| title_sort |
assessing the glyphosate tolerance of lotus corniculatus and l. tenuis to perform rhizoremediation strategies in the humid pampa (argentina) |
| url |
http://hdl.handle.net/20.500.12110/paper_09258574_v90_n_p392_Massot |
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