Tolerance of Bradyrhizobium strains to glyphosate formulations
dc.contributor.author | Santos, José Barbosa dos | |
dc.contributor.author | Ferreira, Evander Alves Ferreira a | |
dc.contributor.author | Kasuya, Maria Catarina M. | |
dc.contributor.author | Silva, Antonio Alberto da | |
dc.contributor.author | Procópio, Sergio de Oliveira | |
dc.date.accessioned | 2018-10-16T10:52:01Z | |
dc.date.available | 2018-10-16T10:52:01Z | |
dc.date.issued | 2005-01 | |
dc.description.abstract | Application of glyphosate to soybean plants, resistant to this herbicide, may be harmful to Bradyrhizobium, the symbiotic bacterium. This study compared the effect of two glyphosate commercial formulations, ZappQi® and Roundup Transorb® with the standard N-(phosphonomethyl) glycine on the growth of four Bradyrhizobium strains under laboratory conditions. Commercial formulations were applied at a concentration of 43.2 μg L−1 of a.e. and the strains were inoculated in yeast extract mannitol (YEM) broth used with or without a mixture of aromatics amino acids (phenylalanine, tyrosine, tryptophan). Herbicide effect on the growth of the Bradyrhizobium strains was assessed by optical density reading in a spectrophotometer. Roundup Transorb® had the biggest effects, probably, because of the presence of ethylamine as a surfactant. Pure glyphosate had minimal effects on Bradyrhizobium strains when aromatics amino acids have been added to YEM broth. Glyphosate application as Roundup Transorb® in the initial stage of soybean development may affect the nodulation process by Bradyrhizobium. | en |
dc.format | pt-BR | |
dc.identifier.issn | 02612194 | |
dc.identifier.uri | https://doi.org/10.1016/j.cropro.2004.10.007 | |
dc.identifier.uri | http://www.locus.ufv.br/handle/123456789/22257 | |
dc.language.iso | eng | pt-BR |
dc.publisher | Crop Protection | pt-BR |
dc.relation.ispartofseries | v. 24, n. 6, p. 543- 547, jun. 2005 | pt-BR |
dc.rights | Elsevier Ltd. | pt-BR |
dc.subject | Adjuvant | pt-BR |
dc.subject | Adjuvant | pt-BR |
dc.subject | Aromatic amino acids | pt-BR |
dc.subject | Rhizobium | pt-BR |
dc.subject | Laboratory bioassay | pt-BR |
dc.title | Tolerance of Bradyrhizobium strains to glyphosate formulations | en |
dc.type | Artigo | pt-BR |
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