First Report of Glyphosate-Resistant Biotype of Eleusine Indica (L.) Gaertn. in Europe
| Autor: | Silvia Farinati, Donato Loddo, Maurizio Sattin, Gaetano Imperatore, Silvia Panozzo, Andrea Milani, Giuseppe Zanin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Veterinary medicine weeds glyphosate resistance Population Eleusine indica 01 natural sciences lcsh:Agriculture resistance chemistry.chemical_compound glyphosate herbicide resistance weeds Herbicide resistance education education.field_of_study biology Fresh weight lcsh:S food and beverages 04 agricultural and veterinary sciences biology.organism_classification Target site chemistry plant nursery Glyphosate 040103 agronomy & agriculture 0401 agriculture forestry and fisheries goosegrass Agronomy and Crop Science glyphosate resistance 010606 plant biology & botany |
| Zdroj: | Agronomy Volume 10 Issue 11 Agronomy (Basel) 10 (2020). doi:10.3390/agronomy10111692 info:cnr-pdr/source/autori:Loddo D., Imperatore G., Milani A., Panozzo S., Farinati S., Sattin M., Zanin G./titolo:First Report of Glyphosate-Resistant Biotype of Eleusine Indica (L.) Gaertn. in Europe/doi:10.3390%2Fagronomy10111692/rivista:Agronomy (Basel)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:10 Agronomy, Vol 10, Iss 1692, p 1692 (2020) |
| Popis: | Glyphosate-resistant biotypes of Eleusine indica (L.) Gaertn. have been detected in Asia, the Americas but not in Europe. The aim of this study was to evaluate resistance levels and possible target site resistance mechanisms of an E. indica biotype (19-1) collected from a plant nursery in Southern Italy where poor glyphosate efficacy was reported. Two dose-response experiments were conducted to evaluate the sensitivity of biotype 19-1 to glyphosate in comparison with two susceptible checks. 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) sequencing was performed to identify possible mutations conferring the resistance. The susceptible biotypes were completely controlled at the glyphosate recommended field dose of 360 g ae ha&minus 1, while 50% of the plants of biotype 19-1 survived at 1440 g ae ha&minus 1. The resistance index of biotype 19-1 ranged between 5.8 and 7.3 for the response variables of fresh weight reduction and plant survival, respectively. All the plants surviving glyphosate application and sampled for DNA analyses had the point mutation P106A. The biotype 19-1 can be confirmed as glyphosate-resistant, representing the first glyphosate-resistant population of E. indica in Europe. |
| Databáze: | OpenAIRE |
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