GomesSmedbolChalifourEtAl2014

Référence

Gomes, M.P., Smedbol, E., Chalifour, A., Henault-Ethier, L., Labrecque, M., Lepage, L., Lucotte, M. and Juneau, P. (2014) Alteration of plant physiology by glyphosate and its by-product aminomethylphosphonic acid: An overview. Journal of Experimental Botany, 65(17):4691-4703. (Scopus )

Résumé

It is generally claimed that glyphosate kills undesired plants by affecting the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme, disturbing the shikimate pathway. However, the mechanisms leading to plant death may also be related to secondary or indirect effects of glyphosate on plant physiology. Moreover, some plants can metabolize glyphosate to aminomethylphosphonic acid (AMPA) or be exposed to AMPA from different environmental matrices. AMPA is a recognized phytotoxin, and its co-occurrence with glyphosate could modify the effects of glyphosate on plant physiology. The present review provides an overall picture of alterations of plant physiology caused by environmental exposure to glyphosate and its metabolite AMPA, and summarizes their effects on several physiological processes. It particularly focuses on photosynthesis, from photochemical events to C assimilation and translocation, as well as oxidative stress. The effects of glyphosate and AMPA on several plant physiological processes have been linked, with the aim of better understanding their phytotoxicity and glyphosate herbicidal effects. © The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology.

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@ARTICLE { GomesSmedbolChalifourEtAl2014,
    AUTHOR = { Gomes, M.P. and Smedbol, E. and Chalifour, A. and Henault-Ethier, L. and Labrecque, M. and Lepage, L. and Lucotte, M. and Juneau, P. },
    TITLE = { Alteration of plant physiology by glyphosate and its by-product aminomethylphosphonic acid: An overview },
    JOURNAL = { Journal of Experimental Botany },
    YEAR = { 2014 },
    VOLUME = { 65 },
    PAGES = { 4691-4703 },
    NUMBER = { 17 },
    NOTE = { cited By 5 },
    ABSTRACT = { It is generally claimed that glyphosate kills undesired plants by affecting the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme, disturbing the shikimate pathway. However, the mechanisms leading to plant death may also be related to secondary or indirect effects of glyphosate on plant physiology. Moreover, some plants can metabolize glyphosate to aminomethylphosphonic acid (AMPA) or be exposed to AMPA from different environmental matrices. AMPA is a recognized phytotoxin, and its co-occurrence with glyphosate could modify the effects of glyphosate on plant physiology. The present review provides an overall picture of alterations of plant physiology caused by environmental exposure to glyphosate and its metabolite AMPA, and summarizes their effects on several physiological processes. It particularly focuses on photosynthesis, from photochemical events to C assimilation and translocation, as well as oxidative stress. The effects of glyphosate and AMPA on several plant physiological processes have been linked, with the aim of better understanding their phytotoxicity and glyphosate herbicidal effects. © The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology. },
    AUTHOR_KEYWORDS = { Aminomethylphosphonic acid; AMPA; Glyphosate; Herbicide exposure; Oxidative stress; Photosynthesis; Phytotoxicity; Plant nutrition },
    DOCUMENT_TYPE = { Review },
    DOI = { 10.1093/jxb/eru269 },
    KEYWORDS = { aminomethylphosphonic acid; glycine; glyphosate; herbicide; phosphonic acid derivative, analogs and derivatives; drug effects; metabolism; plant physiology, Glycine; Herbicides; Organophosphonates; Plant Physiological Phenomena },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84907385533&partnerID=40&md5=5a010dde46b34a03f13ef27b5a1138d3 },
}

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