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Tolerance of dark septate endophytic fungi (DSE) to 1 agrochemicals in vitro / Tolerancia de hongos endofíticos septados oscuros a agroquímicos in vitro
Spagnoletti, Federico N.; Chiocchio, Viviana M..
  • Spagnoletti, Federico N.; CONICET.
  • Chiocchio, Viviana M.; CONICET.
Rev. argent. microbiol ; 52(1): 43-49, mar. 2020. graf
Article in English | LILACS | ID: biblio-1155684
ABSTRACT
Abstract Dark septate endophytes (DSE) are a heterogeneous group of fungi, mostly belonging to the Phylum Ascomycota, that are involved in a mutualistic symbiosis with plant roots. The aim of this study is to evaluate the behavior of two strains of DSE isolated from wheat roots of two cropping areas in the province of Buenos Aires, Argentina, against some agrochemicals. Of all the isolates obtained, two strains were identified as Alternaria alternata and Cochliobolus sp. These DSE were found to be tolerant to glyphosate, carbendazim and cypermethrin when evaluated at the recommended agronomic dose (AD), 2 AD and, in some cases, 10 AD. This work contributes to the study of the biology of this group of fungi and their tolerance in the presence of xenobiotics widely used in agriculture.© 2019 Asociaci´on Argentina de Microbiolog´ıa. Published by Elsevier Espa˜na, S.L.U. This is an open access article under the CC BY-NC-ND license (https//creativecommons.org/licenses/bync-nd/4.0/).
RESUMEN
Resumen Los endófitos septados oscuros (DSE) son un grupo heterogéneo de hongos que participan de una simbiosis mutualista con raíces de plantas, perteneciendo principalmente al Phylum Ascomycota. El objetivo de este estudio fue aislar DSE de raíces de trigo proveniente de dos áreas de cultivo de la provincia de Buenos Aires y evaluar el comportamiento de dos cepas de DSE aisladas de raíces de trigo frente a algunos agroquímicos en dos áreas de cultivo de la provincia de Buenos Aires. De todos los aislamientos obtenidos se seleccionaron dos cepas que se identificaron como Alternaria alternata y Cochliobolus sp. Se encontró que estos DSE son tolerantes al glifosato, el carbendazim y la cipermetrina, evaluados a las dosis agronómicas recomendadas (AD), a 2x AD y, en algunos casos, a 10x AD. Este trabajo contribuye al conocimiento de la biología de este grupo de hongos y su tolerancia a xenobióticos ampliamente utilizados en la agricultura.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Ascomycota / Agrochemicals / Alternaria / Endophytes Country/Region as subject: South America / Argentina Language: English Journal: Rev. argent. microbiol Journal subject: Microbiology Year: 2020 Type: Article Affiliation country: Argentina

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Full text: Available Index: LILACS (Americas) Main subject: Ascomycota / Agrochemicals / Alternaria / Endophytes Country/Region as subject: South America / Argentina Language: English Journal: Rev. argent. microbiol Journal subject: Microbiology Year: 2020 Type: Article Affiliation country: Argentina