Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri

Background. Among entomopathogenic fungi, H. citriformis has been recognized as potential biocontrol agent against the Asian citrus psyllid Diaphorina citri (Hemiptera: Liviidae). Nevertheless, this fungus is poorly characterized. Previous molecular studies have shown high sequence similarities amon...

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Autores principales: Pérez González, Orquídea, Gómez Flores, Ricardo Alberto, Tamez Guerra, Patricia
Formato: Artículo
Lenguaje:inglés
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:http://eprints.uanl.mx/27735/7/27735.pdf
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author Pérez González, Orquídea
Gómez Flores, Ricardo Alberto
Tamez Guerra, Patricia
author_facet Pérez González, Orquídea
Gómez Flores, Ricardo Alberto
Tamez Guerra, Patricia
author_sort Pérez González, Orquídea
collection Repositorio Institucional
description Background. Among entomopathogenic fungi, H. citriformis has been recognized as potential biocontrol agent against the Asian citrus psyllid Diaphorina citri (Hemiptera: Liviidae). Nevertheless, this fungus is poorly characterized. Previous molecular studies have shown high sequence similarities among strains, but significant differences in Diaphorina citri virulence. Objective. The aim of the present study was to determine mycelial compatibility and anastomosis, and nucleus numbers in mycelium and conidia of eight H. citriformis strains isolated from mycosed D. citri adults collected from several Mexican states. Methods. Mycelial compatibility and anastomosis evaluation was performed after pairing strains, leading to 36 confrontations, and cultured in chlorate minimum medium to obtain mutants for vegetative compatibility group. Results. Hypha or conidia nuclei were visualized with safranin-O and 3% KOH, and 0.05% trypan blue–lactophenol solution. H. citriformis strains showed compatibly and anastomosis events after confrontation. In addition, they showed one nucleus per conidium and mycelium section. It was not possible to obtain H. citriformis nit mutants from the chlorate concentrations tested. Conclusions. To date, this is the first report demonstrating mycelial compatibility, anastomosis occurrence, and hyphae and conidia nuclei number among H. citriformis strains.
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spelling eprints-277352024-07-16T15:12:32Z http://eprints.uanl.mx/27735/ Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri Pérez González, Orquídea Gómez Flores, Ricardo Alberto Tamez Guerra, Patricia QR Microbiología Background. Among entomopathogenic fungi, H. citriformis has been recognized as potential biocontrol agent against the Asian citrus psyllid Diaphorina citri (Hemiptera: Liviidae). Nevertheless, this fungus is poorly characterized. Previous molecular studies have shown high sequence similarities among strains, but significant differences in Diaphorina citri virulence. Objective. The aim of the present study was to determine mycelial compatibility and anastomosis, and nucleus numbers in mycelium and conidia of eight H. citriformis strains isolated from mycosed D. citri adults collected from several Mexican states. Methods. Mycelial compatibility and anastomosis evaluation was performed after pairing strains, leading to 36 confrontations, and cultured in chlorate minimum medium to obtain mutants for vegetative compatibility group. Results. Hypha or conidia nuclei were visualized with safranin-O and 3% KOH, and 0.05% trypan blue–lactophenol solution. H. citriformis strains showed compatibly and anastomosis events after confrontation. In addition, they showed one nucleus per conidium and mycelium section. It was not possible to obtain H. citriformis nit mutants from the chlorate concentrations tested. Conclusions. To date, this is the first report demonstrating mycelial compatibility, anastomosis occurrence, and hyphae and conidia nuclei number among H. citriformis strains. PeerJ Inc. 2021-04-19 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/27735/7/27735.pdf http://eprints.uanl.mx/27735/7.haspreviewThumbnailVersion/27735.pdf Pérez González, Orquídea y Gómez Flores, Ricardo Alberto y Tamez Guerra, Patricia (2021) Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri. PeerJ, 9. pp. 1-14. ISSN 2167-8359 https://peerj.com/articles/11080/ doi:10.7717/peerj.11080
spellingShingle QR Microbiología
Pérez González, Orquídea
Gómez Flores, Ricardo Alberto
Tamez Guerra, Patricia
Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri
thumbnail https://rediab.uanl.mx/themes/sandal5/images/online.png
title Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri
title_full Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri
title_fullStr Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri
title_full_unstemmed Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri
title_short Mycelial compatibility, anastomosis, and nucleus numbers of eight Mexican Hirsutella citriformis strains isolated from Diaphorina citri
title_sort mycelial compatibility anastomosis and nucleus numbers of eight mexican hirsutella citriformis strains isolated from diaphorina citri
topic QR Microbiología
url http://eprints.uanl.mx/27735/7/27735.pdf
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