Data/hora: 12/06/2024 17:11:24

Provedor de dados: | 87
País: | Brazil
Título: | Resistance to ACCase inhibitors in Eleusine indica from Brazil involves a target site mutation
Autores: | Osuna,M.D.; Goulart,I.C.G.R.; Vidal,R.A.; Kalsing,A.; Ruiz Santaella,J.P.; De Prado,R.
Data: | 2012-09-01
Ano: | 2012
Palavras-chave: | Goosegrass; Cross-resistance; Enzyme; PCR; Herbicide.
Resumo: | Eleusine indica (goosegrass) is a diploid grass weed which has developed resistance to ACCase inhibitors during the last ten years due to the intensive and frequent use of sethoxydim to control grass weeds in soybean crops in Brazil. Plant dose-response assays confirmed the resistant behaviour of one biotype obtaining high resistance factor values: 143 (fenoxaprop), 126 (haloxyfop), 84 (sethoxydim) to 58 (fluazifop). ACCase in vitro assays indicated a target site resistance as the main cause of reduced susceptibility to ACCase inhibitors. PCR-generated fragments of the ACCase CT domain of the resistant and sensitive reference biotype were sequenced and compared. A point mutation was detected within the triplet of aspartate at the amino acid position 2078 (referred to EMBL accession no. AJ310767) and resulted in the triplet of glycine. These results constitute the first report on a target site mutation for a Brazilian herbicide resistant grass weed.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000300025
Editor: | Sociedade Brasileira da Ciência das Plantas Daninhas
Relação: | 10.1590/S0100-83582012000300025
Formato: | text/html
Fonte: | Planta Daninha  v.30 n.3 2012
Fonte: | info:eu-repo/semantics/openAccess