Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico
Background and Aims: Humaria (Pyronemataceae, Ascomycota) is an ectomycorrhizal genus of fungi, mainly distributed in temperate forest. It is characterized by cupuliform to discoid apothecia that are covered with abundant hairs throughout the exterior of the brown ascomata, and by ellipsoid, hyaline...
| Main Authors: | , , , , |
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| Format: | Online |
| Jezik: | eng spa |
| Izdano: |
Instituto de Ecología, A.C.
2023
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| Online dostop: | https://abm.ojs.inecol.mx/index.php/abm/article/view/2143 |
| _version_ | 1799771427045376000 |
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| author | Sánchez-Flores, Marcos Raymundo, Tania Van Vooren, Nicolas Martínez González, César Ramiro García-Jiménez, Jesús |
| author_facet | Sánchez-Flores, Marcos Raymundo, Tania Van Vooren, Nicolas Martínez González, César Ramiro García-Jiménez, Jesús |
| author_sort | Sánchez-Flores, Marcos |
| collection | ABM |
| description | Background and Aims: Humaria (Pyronemataceae, Ascomycota) is an ectomycorrhizal genus of fungi, mainly distributed in temperate forest. It is characterized by cupuliform to discoid apothecia that are covered with abundant hairs throughout the exterior of the brown ascomata, and by ellipsoid, hyaline, warty ascospores. There are 66 accepted species of which only one has been recorded in Mexico. The present study aims to describe a new species of Humaria with morphological, ecological and molecular data, found in Quercus forests from Tamaulipas, Mexico.
Methods: The specimens were collected in 2019 in the Victoria municipality, Tamaulipas, Mexico. Description and morphological studies were performed according to traditional mycological techniques. Studied material was deposited in the José Castillo Tovar Mycological Herbarium of the Instituto Tecnológico de Ciudad Victoria (ITCV) and the Escuela Nacional de Ciencias Biológicas Herbarium (ENCB) of the Instituto Politécnico Nacional. Phylogenetic analyses were performed using ITS and LSU sequences of the nuclear rDNA.
Key results: Humaria setimarginata sp. nov. is described and illustrated. This species is well differentiated by its morphological, molecular and ecological characteristics. It forms typically cupuliform apothecia with straight margin, abundant dark brown colored short hairs at the margin, and a greyish-white hymenium. It presents a dextrinoid reaction in the ectal excipulum in contact with Melzer´s reagent. It grows around Quercus rysophylla and Q. polymorpha in oak forests.
Conclusions: Humaria setimarginata is the second species of this genus reported in Mexico, after Humaria hemisphaerica. There are several collections under the name Humaria sp. that need a revision, to expand the diversity knowledge of this genus in this country. It is possible that several species exist, considering that this genus is ectomycorrhizal and the diversity of its potential hosts is high. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-2143 |
| institution | Acta Botanica Mexicana |
| language | eng spa |
| publishDate | 2023 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-21432024-02-01T00:31:59Z Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico Humaria setimarginata (Pyronemataceae, Ascomycota), una nueva especie de México Sánchez-Flores, Marcos Raymundo, Tania Van Vooren, Nicolas Martínez González, César Ramiro García-Jiménez, Jesús ectomycorrhizal fungi northeast of Mexico Pezizales Quercus spp. hongos ectomicorrícicos noreste de México Pezizales Quercus spp. Background and Aims: Humaria (Pyronemataceae, Ascomycota) is an ectomycorrhizal genus of fungi, mainly distributed in temperate forest. It is characterized by cupuliform to discoid apothecia that are covered with abundant hairs throughout the exterior of the brown ascomata, and by ellipsoid, hyaline, warty ascospores. There are 66 accepted species of which only one has been recorded in Mexico. The present study aims to describe a new species of Humaria with morphological, ecological and molecular data, found in Quercus forests from Tamaulipas, Mexico. Methods: The specimens were collected in 2019 in the Victoria municipality, Tamaulipas, Mexico. Description and morphological studies were performed according to traditional mycological techniques. Studied material was deposited in the José Castillo Tovar Mycological Herbarium of the Instituto Tecnológico de Ciudad Victoria (ITCV) and the Escuela Nacional de Ciencias Biológicas Herbarium (ENCB) of the Instituto Politécnico Nacional. Phylogenetic analyses were performed using ITS and LSU sequences of the nuclear rDNA. Key results: Humaria setimarginata sp. nov. is described and illustrated. This species is well differentiated by its morphological, molecular and ecological characteristics. It forms typically cupuliform apothecia with straight margin, abundant dark brown colored short hairs at the margin, and a greyish-white hymenium. It presents a dextrinoid reaction in the ectal excipulum in contact with Melzer´s reagent. It grows around Quercus rysophylla and Q. polymorpha in oak forests. Conclusions: Humaria setimarginata is the second species of this genus reported in Mexico, after Humaria hemisphaerica. There are several collections under the name Humaria sp. that need a revision, to expand the diversity knowledge of this genus in this country. It is possible that several species exist, considering that this genus is ectomycorrhizal and the diversity of its potential hosts is high. Antecedentes y Objetivos: Humaria (Pyronemataceae, Ascomycota) es un género de hongos ectomicorrízicos, distribuidos generalmente en bosques templados. Se caracteriza por apotecios cupuliformes a discoides que están cubiertos con abundantes pelos en todo el exterior de los ascomas marrones, y por ascosporas elipsoides, hialinas y verrucosas. Son 66 especies aceptadas de las cuales solo una ha sido registrada en México. El presente estudio tiene como objetivo describir una nueva especie de Humaria, con datos morfológicos, ecológicos y moleculares, encontrada en el bosque de Quercus de Tamaulipas, México. Métodos: Los ejemplares fueron recolectados en 2019 en el municipio Victoria, Tamaulipas, México. La descripción y los estudios morfológicos se realizaron según las técnicas micológicas tradicionales. El material estudiado fue depositado en el Herbario Micológico José Castillo Tovar del Instituto Tecnológico de Ciudad Victoria (ITCV) y en el Herbario de la Escuela Nacional de Ciencias Biológicas (ENCB) del Instituto Politécnico Nacional. Los análisis filogenéticos se realizaron utilizando secuencias ITS y LSU del ADNr nuclear. Resultados clave: Humaria setimarginata sp. nov. se describe e ilustra. Esta especie se diferencia bien por características morfológicas, moleculares y ecológicas. Forma un apotecio típicamente cupuliforme, con margen recto, abundantes pelos cortos color marrón oscuro en el margen y un himenio blanco grisáceo. Presenta una reacción dextrinoide en el excípulo ectal en contacto con el reactivo Melzer. Crece alrededor de Quercus rysophylla y Q. polymorpha en bosques de encino. Conclusiones: Humaria setimarginata es la segunda especie de este género que se reporta para México, después de Humaria hemisphaerica. Hay varias colecciones bajo el nombre de Humaria sp. que necesitan una revisión, para ampliar el conocimiento de la diversidad de este género en el país. Es posible que existan varias especies, considerando que este género es ectomicorrícico y la diversidad de sus hospedantes potenciales es alta. Instituto de Ecología, A.C. 2023-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/xml application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/2143 10.21829/abm130.2023.2143 Acta Botanica Mexicana; No. 130 (2023) Acta Botanica Mexicana; Núm. 130 (2023) 2448-7589 0187-7151 eng spa https://abm.ojs.inecol.mx/index.php/abm/article/view/2143/4399 https://abm.ojs.inecol.mx/index.php/abm/article/view/2143/4425 https://abm.ojs.inecol.mx/index.php/abm/article/view/2143/4400 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Sánchez-Flores, Marcos Raymundo, Tania Van Vooren, Nicolas Martínez González, César Ramiro García-Jiménez, Jesús Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico |
| title | Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico |
| title_full | Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico |
| title_fullStr | Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico |
| title_full_unstemmed | Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico |
| title_short | Humaria setimarginata (Pyronemataceae, Ascomycota), a new species from Mexico |
| title_sort | humaria setimarginata (pyronemataceae, ascomycota), a new species from mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/2143 |
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