Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.

<h4>Background</h4>Glyphosate is a herbicide that is liable to be used in the extensive cultivation of glyphosate-tolerant cultivars. The potential accumulation of the relative effect of glyphosate on the rhizobacterial communities of glyphosate-tolerant maize has been monitored over a p...

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Autores principales:	Jorge Barriuso, Silvia Marín, Rafael P Mellado
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/df633b1469224b0fa09a2a250dbeff22
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spelling	oai:doaj.org-article:df633b1469224b0fa09a2a250dbeff222021-11-18T07:34:27ZPotential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.1932-620310.1371/journal.pone.0027558https://doaj.org/article/df633b1469224b0fa09a2a250dbeff222011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22096595/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Glyphosate is a herbicide that is liable to be used in the extensive cultivation of glyphosate-tolerant cultivars. The potential accumulation of the relative effect of glyphosate on the rhizobacterial communities of glyphosate-tolerant maize has been monitored over a period of three years.<h4>Methodology/principal findings</h4>The composition of rhizobacterial communities is known to vary with soil texture, hence, the analyses have been performed in two agricultural fields with a different soil texture. The accumulative effects of glyphosate have been monitored by means of high throughput DNA pyrosequencing of the bacterial DNA coding for the 16S rRNA hypervariable V6 region from rhizobacterial communities. The relative composition of the rhizobacterial communities does vary in each field over the three-year period. The overall distribution of the bacterial phyla seems to change from one year to the next similarly in the untreated and glyphosate-treated soils in both fields. The two methods used to estimate bacterial diversity offered consistent results and are equally suitable for diversity assessment.<h4>Conclusions/significance</h4>The glyphosate treatment during the three-year period of seasonal cultivation in two different fields did not seem to significantly change the maize rhizobacterial communities when compared to those of the untreated soil. This may be particularly relevant with respect to a potential authorisation to cultivate glyphosate-tolerant maize in the European Union.Jorge BarriusoSilvia MarínRafael P MelladoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 11, p e27558 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jorge Barriuso Silvia Marín Rafael P Mellado Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.
description	<h4>Background</h4>Glyphosate is a herbicide that is liable to be used in the extensive cultivation of glyphosate-tolerant cultivars. The potential accumulation of the relative effect of glyphosate on the rhizobacterial communities of glyphosate-tolerant maize has been monitored over a period of three years.<h4>Methodology/principal findings</h4>The composition of rhizobacterial communities is known to vary with soil texture, hence, the analyses have been performed in two agricultural fields with a different soil texture. The accumulative effects of glyphosate have been monitored by means of high throughput DNA pyrosequencing of the bacterial DNA coding for the 16S rRNA hypervariable V6 region from rhizobacterial communities. The relative composition of the rhizobacterial communities does vary in each field over the three-year period. The overall distribution of the bacterial phyla seems to change from one year to the next similarly in the untreated and glyphosate-treated soils in both fields. The two methods used to estimate bacterial diversity offered consistent results and are equally suitable for diversity assessment.<h4>Conclusions/significance</h4>The glyphosate treatment during the three-year period of seasonal cultivation in two different fields did not seem to significantly change the maize rhizobacterial communities when compared to those of the untreated soil. This may be particularly relevant with respect to a potential authorisation to cultivate glyphosate-tolerant maize in the European Union.
format	article
author	Jorge Barriuso Silvia Marín Rafael P Mellado
author_facet	Jorge Barriuso Silvia Marín Rafael P Mellado
author_sort	Jorge Barriuso
title	Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.
title_short	Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.
title_full	Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.
title_fullStr	Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.
title_full_unstemmed	Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.
title_sort	potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/df633b1469224b0fa09a2a250dbeff22
work_keys_str_mv	AT jorgebarriuso potentialaccumulativeeffectoftheherbicideglyphosateonglyphosatetolerantmaizerhizobacterialcommunitiesoverathreeyearcultivationperiod AT silviamarin potentialaccumulativeeffectoftheherbicideglyphosateonglyphosatetolerantmaizerhizobacterialcommunitiesoverathreeyearcultivationperiod AT rafaelpmellado potentialaccumulativeeffectoftheherbicideglyphosateonglyphosatetolerantmaizerhizobacterialcommunitiesoverathreeyearcultivationperiod
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Potential accumulative effect of the herbicide glyphosate on glyphosate-tolerant maize rhizobacterial communities over a three-year cultivation period.

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