Gonzalo Guevara

Gonzalo Guevara
Instituto Tecnológico de Cd. Victoria · Department of Biology

PhD

About

60
Publications
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Introduction
Skills and Expertise

Publications

Publications (60)
Article
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Four strains of the ectomycorrhizal Boletus luridellus were used to inoculate Quercus fusi�formis seedlings in pots in order to compare growth response effectiveness. Boletus luridellus is an edible fungus that forms ectomycorrhiza with Quercus fusiformis and other oak species in temperate forest in northeastern México. The effects of inoculation...
Article
Full-text available
Background and Aims: The genus Melanogaster is characterized by its hypogeous to semi hypogeous habit, brownish basidiomata, gel-filled gleba locules, and globose to ellipsoid basidiospores. The genus is distributed in temperate zones, but sequences from Coccoloba root tips and a few basidiome collections have revealed its presence in the tropics....
Article
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Pachyphlodes is a lineage of ectomycorrhizal, hypogeous, sequestrate ascomycete fungi native to temperate and subtropical forests in the Northern Hemisphere. Pachyphlodes species form ectomycorrhizae mainly with Fagales hosts. Here we describe two new species of Pachyphlodes , P. brunnea , and P. coalescens , based on morphological and phylogenetic...
Article
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Los hongos micorrízicos arbusculares (HMA) son importantes para el desarrollo y supervivencia de las plantas. Esto ha motivado el análisis del uso de algunas especies de HMA de uso comercial como biofertilizantes de cultivos a nivel nacional. En Tamaulipas, el conocimiento acerca de la diversidad de HMA es escaso. El objetivo del presente trabajo f...
Article
Tuber mixtecorum is described as a new species from Mexico based on morphological and molecular evidence. This species belongs to the Maculatum clade and is characterized by its subtomentose to glabrous, whitish to pale brown peridium, dark brown gleba, ellipsoid reticulate-alveolate ascospores (15–33.9 × 11.3–23.3 µm), and the putative mycorrhizal...
Article
Full-text available
According to records available in the literature, 380 species of fungi and fungus-like organisms are known for the state of Quintana Roo on the Yucatán Peninsula of Mexico. We carried out mycological surveys in this state, following the classical methods for collecting, describing, and curating macrofungi. As a result of our research, 21 species ar...
Article
Full-text available
According to records available in the literature, 380 species of fungi and fungus-like organisms are known for the state of Quintana Roo on the Yucatán Peninsula of Mexico. We carried out mycological surveys in this state, following the classical methods for collecting, describing, and curating macrofungi. As a result of our research, 21 species ar...
Article
Full-text available
La pirazinamida es un profármaco utilizado en infecciones contra Mycobacterium tuberculosis y su resistencia se debe principalmente a mutaciones en el gen pncA. En este estudio se realizó la detección de mutaciones puntuales de este gen, en aislamientos clínicos del estado de Nuevo León. Se elaboraron modelos tridimensionales de la enzima pirazinam...
Article
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Knowledge of sequestrate Hysterangiaceae fungi in Mexico is very limited. In the present study, a new member of the family, Aroramyces guanajuatensis sp. nov., is described. This speciesis closely related to A. balanosporus, but differs from the latter in possessing a tomentose peridium 165-240 µm thick, with occasional large terminal hyphae up to...
Article
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Molecular investigations into two truffle-like fungi within the Pyronemataceae (Pezizales, Ascomycota) revealed hidden diversity that required further clarification of generic and species boundaries of the hypogeous, ptychothecial members of this family. Here we describe Terracavicola echinospora gen. et. sp. nov. from mexico and we transfer Pachyp...
Article
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Recent collections of Tuber malacodermum from Spain, Corsica, and Mexico were compared in an integrative morphological and molecular phylogenetic framework, including study of type material. Phylogenetic analyses of nuc rDNA internal transcribed spacer (ITS1-5.8S-ITS2 = ITS) and nuc 28S rDNA (28S) regions showed that specimens from Spain and Corsic...
Article
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Stephanospora mayana is presented as a new species from the Yucatán Peninsula, Mexico. This species is distinguished by the yellowish pileus, basidiospores with a small corona (4-6 × 1-2.5 µm), and variable size (8.0-17.0 × 6.0-11.0), thin pileus (21-40 µm) and the ecological association to lowland forest with Haematoxylum campechianum, Gymnopodium...
Article
Full-text available
Se presenta el primer registro de Boletus luridellus (Boletaceae, Boletineae) para los estados de Nuevo León y Tamaulipas, México. Se identificó la especie y se obtuvieron cultivos puros in vitro, se midió el crecimiento en dos medios de cultivo, se obtuvo la síntesis de micorrizas en plántulas de Quercus fusiformis y se regristra por primera vez l...
Article
Full-text available
This study documents the first register of Boletus luridellus (family Boletaceae) in the states of Nuevo León and Tamaulipas. Pure cultures were obtained in vitro; synthesis of mycorrhizae was achieved with Quercus fusiformis, and fruiting bodies were produced under greenhouse conditions for the first time. This species forms mycorrhizae with Querc...
Poster
Full-text available
Taxonomic and habit diversity of macro fungi found in the tropical forest, oak-pine forest and cloud forest in the Cañón de la Peregrina in the municipality of Victoria in the State of Tamaulipas in Mexico.
Article
Full-text available
The genus Tuber is a lineage of diverse ectomycorrhizal, hypogeous, sequestrate ascomycete fungi that are native to temperate forests in the Northern Hemisphere. Recently, many new species of Tuber have been described in North America and Asia, based on morphological characteristics and molecular data. Here we describe and illustrate a new species,...
Article
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Antecedentes y Objetivos: En México se han reportado 42 especies de ascomicetos con hábito hipogeo; son pocas considerando el conocimiento de otros grupos de hongos. El objetivo de este trabajo fue incrementar el conocimiento sobre la diversidad y distribución de especies de hongos hipogeos para México. Métodos: Se realizaron recolectas en diverso...
Article
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Mayamontana coccolobae Castellano, Trappe and Lodge is described for the first time from Mexico and the second time worldwide. It is characterized by the orange, subhypogeous basidiomata and the wrinkled subglobose spores with conspicuous hilar appendix. It is not a very common species in the region and is recorded from disturbed lowland forest and...
Article
Full-text available
Mayamontana coccolobae Castellano, Trappe and Lodge is described for the first time from Mexico and the second time worldwide. It is characterized by the orange, subhypogeous basidiomata and the wrinkled subglobose spores with conspicuous hilar appendix. It is not a very common species in the region and is recorded from disturbed lowland forest and...
Article
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El género Hydnotrya comprende alrededor de 13 especies de Ascomicetos hipogeos, secuestrados ectomicorrízicos distribuidos exclusivamente en bosques templados del hemisferio norte. En este trabajo se describe e ilustra por primera vez una especie de este género, Hydnotrya cerebriformis, para México. Esta especie se distribuye en el Eje Neovolcánico...
Article
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Background and Aims: Delastria rosea is a hypogeous fungus characterized by its rose gleba and globose ascospores with reticulated ornamentation. Its previously known distribution ranges from Northern Africa, Southern Europe to California in the United States of America. The aim of this study is to record D. rosea for the Mexican mycobiota. Methods...
Article
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Little is known of the truffle-like fungi of northern Mexico. Few mycologists have collected truffle-like specimens in this area. The wide diversity of habitat and potential mycorrhizal partners portend a unique and varied truffle-like mycota. In the conduct of recent field studies in this region we collected many interesting truffle-like specimens...
Article
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Stephanospora michoacanensis is presented as a new species from North America. This angiocarpic species is recognized by its yellowcream peridial surface color, and broadly ellipsoid to subglobose, spiny or crested, inamyloid spores with a distinct, complete or nearly complete corona at its base. Stephanospora michoacanensis is similar to S. caroti...
Article
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El género Trappea (Zeller) Castellano pertenece a la familia Trappeaceae en el orden Hysterangiales y se distingue de Hysterangium, donde anteriormente se situaba, por la presencia de una capa persistente de lóculos estériles junto al peridio, además, presenta esporas pequeñas y lisas, actualmente se reconocen 4 especies y 1 variedad (Kirk, et al.,...
Chapter
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In the present work, about 2000 specimens of macrofungicollected by the authors during 25 years of survey in the state of Tamaulipas were reviewed. They come from 39 localities at 10 municipalities with tropical and temperate oak forerst. The materials are deposited at the ITCV and ENCB herbaria. Three hundred and sixty-three species and one variet...
Chapter
Full-text available
Cantharellus cibarius is a wild fungus that forms ectomycorrhizal associations with a number of hosts in nature and is a choice edible species that people collects for food every year in different countries of Europe, in Northamerica and Latin America including México (Corner, 1966; Moore et al., 1989; Froideveaux, 1975; Mousain, 1979; Trappe, 1972...
Article
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Truffles have evolved from epigeous (aboveground) ancestors in nearly every major lineage of fleshy fungi. Because accelerated rates of morphological evolution accompany the transition to the truffle form, closely related epigeous ancestors remain unknown for most truffle lineages. This is the case for the quintessential truffle genus Tuber, which...
Data
Economically important Tuber species determined by 2009 market prices (USD) in the USA. (XLS)
Data
Collection information and GenBank accession information for taxa sampled. (XLS)
Data
Primers used in this study. (XLS)
Article
Fungal mitospores may function as dispersal units and/ or spermatia and thus play a role in distribution and/or mating of species that produce them. Mitospore production in ectomycorrhizal (EcM) Pezizales is rarely reported, but here we document mitospore production by a high diversity of EcM Pezizales on three continents, in both hemispheres. We s...
Article
Full-text available
Las especies del género Elaphomyces son poco conocidas en México a pesar de su importancia ecológica y tradicional. En este trabajo se citan por primera vez para México Elaphomyces aculeatus y E. maculatus y para el Estado de Michoacán, E. muricatus. Los especímenes fueron colectados de bosques de pino-encino, encino y bosque mesófilo de montaña. L...
Article
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Las especies del género Tuber han recibido escasa atención taxonómica en México, a pesar de su gran importancia ecológica y económica. A la fecha, 10 especies han sido descritas para el país. En este estudio se describen por primera vez para la micobiota Mexicana a Tuber canaliculatum, T. gibbosum y T. malacodermum. Las especies fueron determinadas...
Article
Full-text available
Recent surveys of belowground fungal biodiversity in México and USA have revealed many undescribed truffle species, including many in the genus Tuber. Here we describe seven new species: Tuber beyerlei, T. castilloi, T. guevarai, T. lauryi, T. mexiusanum, T. miquihuanense and T. walkeri. Phylogenetic analyses place these species within the Maculatu...
Article
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We describe Elaphomyces verruculosus as new species from eastern North America, ranging from Quebec, Canada south along the eastern USA and along the Gulf Coast to northeastern México. E. verruculosus is similar in overall morphology to E. granulatus of Europe In addition we re-describe E. appalachiensis and report it as occurring in Florida, Iowa,...
Article
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Two new species of hypogeous Pezizales in the Pyronemataceae are described from montane cloud forests in Mexico. Genea mexicana can be recognised by ITS sequence analysis and its distinct spore and seta dimensions; Geopora tolucana by ITS sequence analysis and its light brown hymenium, broadly ellipsoid ascospores and host preference. It belongs to...
Article
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The species of Ramaria are ecologically and economically important, however, studies on this genus are very scarce in México. Due to this, a taxonomic study on this taxon was performed. Three new Ramaria spp. in the subgenus Laeticolora are described from oak dominated forests of central Mexico: R. persicina is recognized by its pink to pinkish ora...
Article
Full-text available
The species of Ramaria are ecologically and economically important, however, studies on this genus are very scarce in México. Due to this, a taxonomic study on this taxon was performed. Three new Ramaria spp. in the subgenus Laeticolora are described from oak dominated forests of central Mexico: R. persicina is recognized by its pink to pinkish ora...
Article
Full-text available
A molecular analysis of LSU and ITS portions of rDNA from Pachyphloeus ascocarp collections in the United States and Mexico gives strong bootstrap support for four clades within the genus. Two clades include collections from Iowa and Mexico. From one of these, a new species of Pachyphloeus, is described from oak woodlands. Pachyphloeus marroninus i...
Article
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Melanogaster minysporus is described as a new species from northern Mexico (Nuevo Leon). It is distinctive in the genus in having a bright yellow peridium that stains reddish where bruised in fresh and small spores.
Article
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Three new species of Hysterangium (H. quercicola, H. latisporum, and H. velatisporum) are described from northern Mexico. In addition, one previously described Hysterangium species (H. aureum) is recorded for the first time from Mexico.
Article
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Melanogaster minysporus is described as a new species from northern Mexico (Nuevo Leon). It is distinctive in the genus in having a bright yellow peridium that stains reddish where bruised in fresh and small spores.
Article
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Tuber regimontanum is described as a new species from the N of Mexico (Nuevo Leon). It is close to T. melanosporum and T. indicum but these species have smaller spores then the described species. Molecular analysis of the the ITS ribosomal has shown these threes species are significatly differents. With the new species are until now six Tuber speci...
Article
Full-text available
Tuber regimontanum is described as a new species from the N of Mexico (Nuevo Leon). It is close to T. melanosporum and T. indicum but these species have smaller spores then the described species. Molecular analysis of the the ITS ribosomal has shown these threes species are significatly differents. With the new species are until now six Tuber speci...
Article
Full-text available
A preliminar molecular taxonomical study of Cantharellus ciborium, C. minor, C. cinnabarinus and Cantharellus sp., was preformed.
Article
Full-text available
A molecular analysis of LSU and ITS portions of rDNA from Pachyphloeus ascocarp collections in the United States and Mexico gives strong bootstrap support for four clades within the genus. Two clades include collections from Iowa and Mexico. From one of these, a new species of Pachyphloeus, is described from oak woodlands. Pachyphloeus marroninus i...

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Projects (3)
Project
Composición, diversidad, distribución y ecología de los hongos arbusculares en el estado de Tamaulipas