Arturo Estrada Torres | Universidad Autónoma de Tlaxcala (original) (raw)

Papers by Arturo Estrada Torres

Background: We performed an ethnomycological study in a community in Tlaxcala, Central Mexico to ... more Background: We performed an ethnomycological study in a community in Tlaxcala, Central Mexico to identify the

The results of a biodiversity survey for myxomycetes, carried out in montane rainforests of the E... more The results of a biodiversity survey for myxomycetes, carried out in montane rainforests of the Ecological Reserve “Alturas de Banao” in the Macizo Guamuahaya Mountains of central Cuba, are reported here. The survey yielded more than 200 field collections of myxomycetes, and 56 species were identified, from these field collections and moist chamber culture collections. Amongst these were 23 species recorded for the first time from Cuba: Arcyria afroalpina, A. globosa, Badhamia melanospora, Ceratiomyxa sphaerosperma, Clastoderma debaryanum, Collaria lurida, Comatricha laxa, C. nigra, C. tenerrima, Craterium concinnum, Cribraria microcarpa, C. tenella, Diderma corrugatum, Didymium iridis, Echinostelium bisporum, E. minutum, Hemitrichia pardina, Licea bulbosa, L. erecta var. erectoides, L. scyphoides, Perichaena vermicularis, Physarum crateriforme, and P. galbeum, Dead leaves of the palm Roystonea regia were an especially productive substrate for myxomycetes, with members of the Trichi...

Revista Mexicana de Biodiversidad, 2018

African Journal of Biotechnology, 2016

Laccases are enzymes that have a great potential for use in breaking down toxic compounds. Fungal... more Laccases are enzymes that have a great potential for use in breaking down toxic compounds. Fungal laccases show high enzymatic activity, especially those produced by basidiomycetes. Depending on the culture conditions and the strain used, a variety of isoenzymes and/or enzymatic activities can be obtained. In this study, extracellular laccase enzymes produced by Pleurotus ostreatus was identified in a submerged culture (SmF), with and without copper sulphate as a chemical inducer, and in a solidstate culture (SSF), using wheat straw as natural inducer. This study was conducted to observe the expression of the enzymes produced under the culture conditions tested and their persistence during the culture, as well as the extracellular activity produced and the correspondence that the isoenzymes presented between the intracellular and extracellular media. A positive effect of the inducers on the specific laccase activity was observed either in SmF with copper sulphate or SSF (41.11 and 4...

Revista mexicana de micología, 1995

TA (2003). Descripcion y cultivo de un nuevo mixomicete, Licea succulenticola. Anales Jard.

Phytotaxa, 2019

A new sessile species of myxomycete, Licea aurea is described, based on material from the Andean ... more A new sessile species of myxomycete, Licea aurea is described, based on material from the Andean puna in Peru at almost 5000 m. It was isolated from moist chamber cultures of Azorella compacta litter and cultured on agar from spore to spore. It can be distinguished from other species in the genus by its small size, golden colour, dehiscence and smooth thick-walled spores with a thinner area. Life-cycle events are described and illustrated, from germination to sporulation. The morphology of the myxomycete specimens was examined using light and scanning electron microscopy, and both light and SEM micrographs of relevant details are included.

Revista mexicana de …, 2008

Journal of ethnobiology and ethnomedicine, Jan 11, 2007

Cultural significance is a keystone in quantitative ethnobiology, which offers the possibility to... more Cultural significance is a keystone in quantitative ethnobiology, which offers the possibility to make inferences about traditional nomenclature systems, use, appropriation and valuing of natural resources. In the present work, using as model the traditional mycological knowledge of Zapotecs from Oaxaca, Mexico, we analyze the cultural significance of wild edible resources. In 2003 we applied 95 questionnaires to a random sample of informants. With this data we integrated the Edible Mushroom Cultural Significance Index. This index included eight variables: frequency of mention, perceived abundance, use frequency, taste, multifunctional food use, knowledge transmission, health and economy. Data were analyzed in an inductive perspective using ordination and grouping techniques to reveal the behavior of species in a cultural multivariate dimension. In each variable the species had different conducts. Cantharellus cibarius s.l. was the species with most frequency of mention. Pleurotus s...

Cryptogamie Mycologie, 2015

Abstract — The aim of this study was to explore the systematic position of the fungi associated w... more Abstract — The aim of this study was to explore the systematic position of the fungi associated with the roots of M. uniflora in two localities of Tlaxcala, Mexico, using a phylogenetic approach. Thirty plants were sampled, fifteen from a coniferous forest dominated by Abies religiosa in La Malinche National Park, and fifteen from a mixed conifer-broadleaf forest dominated by Pseudotsuga menziesii in Sierra de Tlaxco. Our ITS analysis confirms the preference of M. uniflora to associate with Russulaceae, in particularly with Russula species. The roots of each plant were associated with a single fungal ITS sequence. They were analyzed phylogenetically by maximum likelihood, and were recovered in 12 moderate to well-supported clades within the genus Russula. In each of these clades only a single Russula species was associated with Monotropa in Mexico, except for clade Integrae for which two Mexican species were retrieved. A total of 13 Russula species were retrieved from the 30 Monotropa plants, four from La Malinche National Park, and 11 from Sierra de Tlaxco. Two species, R. aff. olivobrunnea and one unidentified species in subsection Lactarioideae, were shared among both localities. The Monotropa in the Abies forest of La Malinche National Park were dominated by a single species, R. aff. olivobrunnea, present in 11 of the 15 plants. In the Pseudotsuga forest of Sierra de Tlaxco, Monotropa was associated with a higher diversity of Russula, eleven species in total, seven of which were associated with a single plant, while the four other Russula had each been retrieved from two plants. Higher diversity of ectomycorrhizal host trees in the Sierra de Tlaxco site might possibly explain the higher richness of fungal associates as suggested by host association patterns of the involved species groups. This study brings the total number of Russula species that associate with Monotropa to forty-four. In the distribution area of Monotropoideae, nearly all terminal Russula clades (i.e. subsection level) that are involved in this mycoheterotroph association, equally harbor species that associate with mycoheterotroph orchids, whereas gasteromycetation appears to have exclusively evolved in clades that also harbor species developing mycoheterotroph associations.

Resumen. Se presentan los resultados de un muestreo de la myxobiota en la Reserva Ecológica Altur... more Resumen. Se presentan los resultados de un muestreo de la myxobiota en la Reserva Ecológica Alturas de Banao, situada en la cordillera de Guamuahaya en el centro de Cuba.

Fourteen species of arbuscular mycorrhizal fungi, isolated from several agroecosystems, are recor... more Fourteen species of arbuscular mycorrhizal fungi, isolated from several agroecosystems, are recorded from the Volcano La Malintzin, Tlaxcala, Mexico: Glomus claroides, Gl. etunicatum, Gl. mosseae, Sclerocystis clavispora, s. rubiformis, s. sinuosa, Acaulospora delicata, A. laevis, A. mellea, A. splendida, Gigaspora gigantea, G. margarita, Scutellospora dipurpurascens and Sc . pellucida. With exception of Glomus etunicatum and Sclerocystis sinuosa, all the species are described with notes about their distribution and affinity with other species of Glomales. Gl . claroides, Gl. etunicatum, Gl. mosseae, A. delicata, A. laevis, G. gigantea, G. margarita, Sc. dipurpurascens and Sc. pellucida were propagated in po·t pure cultures.

The results of a biodiversity survey of a xeric Mexican Biosphere Reserve are presented. This sur... more The results of a biodiversity survey of a xeric Mexican Biosphere Reserve are presented. This survey represents the first intensive study of cacti and succulent plants ever carried out for myxomycetes. The results include 104 species and one variety, identified from 1200 ...