Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strains

Metarhizium anisopliae is an anamorphic fungus widely studied due to its use as a biological control agent. In Mexico, it is mainly used as an integrated management strategy to control populations of spittlebugs (Hemiptera: Cercopidae) that affect sugarcane fields and cattle pastures. In this study...

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Main Authors: Hortensia Navarro-Barranco, Carolina Brunner-Mendoza, María del Rocío Reyes-Montes, Esperanza Duarte-Escalante, Conchita Toriello
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México 2019-03-01
Series:Revista Mexicana de Biodiversidad
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Online Access:https://revista.ib.unam.mx/index.php/bio/article/view/2643
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author Hortensia Navarro-Barranco
Carolina Brunner-Mendoza
María del Rocío Reyes-Montes
Esperanza Duarte-Escalante
Conchita Toriello
author_facet Hortensia Navarro-Barranco
Carolina Brunner-Mendoza
María del Rocío Reyes-Montes
Esperanza Duarte-Escalante
Conchita Toriello
author_sort Hortensia Navarro-Barranco
collection DOAJ
description Metarhizium anisopliae is an anamorphic fungus widely studied due to its use as a biological control agent. In Mexico, it is mainly used as an integrated management strategy to control populations of spittlebugs (Hemiptera: Cercopidae) that affect sugarcane fields and cattle pastures. In this study, 13 strains isolated from Aeneolamia spp. (Hemiptera: Cercopidae) from the main areas of sugarcane production of Mexico and 11 reference strains of Metarhizium from different insect hosts and geographic origins were evaluated based on their conidial dimensions, thermotolerance at 15, 25, 30, and 35 ºC, random amplification of polymorphic DNA (RAPD) patterns using a combined analysis with 14 different oligonucleotides and diversity estimators, and a phylogenetic analysis with the ribosomal RNA internal transcribed spacer (ITS) region. All strains used in this study showed typical morphological characteristics corresponding to M. anisopliae and were able to grow at 25 and 30 ºC with restricted growth at low (15 ºC) and high temperatures (35 ºC). Polymorphism analysis clustered all strains from Aeneolamia sp. in one welldefined group with low variability among them. Phylogenetic relationships based on nuclear ribosomal ITS region sequences recovered a subclade within M. anisopliae formed by 10 of the Mexican strains.
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spelling doaj-art-2ab73c0e8dcb48b485e97cc88f7965ac2025-08-20T01:49:31ZengUniversidad Nacional Autónoma de MéxicoRevista Mexicana de Biodiversidad1870-34532007-87062019-03-019010.22201/ib.20078706e.2019.90.2643Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strainsHortensia Navarro-Barranco0Carolina Brunner-Mendoza1María del Rocío Reyes-Montes2Esperanza Duarte-Escalante3Conchita Toriello4Universidad Nacional Autonoma de MexicoUniversidad Nacional Autonoma de MexicoUniversidad Nacional Autonoma de MexicoUniversidad Nacional Autonoma de MexicoUniversidad Nacional Autonoma de Mexico Metarhizium anisopliae is an anamorphic fungus widely studied due to its use as a biological control agent. In Mexico, it is mainly used as an integrated management strategy to control populations of spittlebugs (Hemiptera: Cercopidae) that affect sugarcane fields and cattle pastures. In this study, 13 strains isolated from Aeneolamia spp. (Hemiptera: Cercopidae) from the main areas of sugarcane production of Mexico and 11 reference strains of Metarhizium from different insect hosts and geographic origins were evaluated based on their conidial dimensions, thermotolerance at 15, 25, 30, and 35 ºC, random amplification of polymorphic DNA (RAPD) patterns using a combined analysis with 14 different oligonucleotides and diversity estimators, and a phylogenetic analysis with the ribosomal RNA internal transcribed spacer (ITS) region. All strains used in this study showed typical morphological characteristics corresponding to M. anisopliae and were able to grow at 25 and 30 ºC with restricted growth at low (15 ºC) and high temperatures (35 ºC). Polymorphism analysis clustered all strains from Aeneolamia sp. in one welldefined group with low variability among them. Phylogenetic relationships based on nuclear ribosomal ITS region sequences recovered a subclade within M. anisopliae formed by 10 of the Mexican strains. https://revista.ib.unam.mx/index.php/bio/article/view/2643MetarhiziumSugarcaneCattle pasturesITS regionRAPD
spellingShingle Hortensia Navarro-Barranco
Carolina Brunner-Mendoza
María del Rocío Reyes-Montes
Esperanza Duarte-Escalante
Conchita Toriello
Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strains
Revista Mexicana de Biodiversidad
Metarhizium
Sugarcane
Cattle pastures
ITS region
RAPD
title Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strains
title_full Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strains
title_fullStr Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strains
title_full_unstemmed Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strains
title_short Phenotypic and molecular analysis of Mexican Metarhizium anisopliae strains
title_sort phenotypic and molecular analysis of mexican metarhizium anisopliae strains
topic Metarhizium
Sugarcane
Cattle pastures
ITS region
RAPD
url https://revista.ib.unam.mx/index.php/bio/article/view/2643
work_keys_str_mv AT hortensianavarrobarranco phenotypicandmolecularanalysisofmexicanmetarhiziumanisopliaestrains
AT carolinabrunnermendoza phenotypicandmolecularanalysisofmexicanmetarhiziumanisopliaestrains
AT mariadelrocioreyesmontes phenotypicandmolecularanalysisofmexicanmetarhiziumanisopliaestrains
AT esperanzaduarteescalante phenotypicandmolecularanalysisofmexicanmetarhiziumanisopliaestrains
AT conchitatoriello phenotypicandmolecularanalysisofmexicanmetarhiziumanisopliaestrains