Publications by authors named "María Belén Pildain"

4 Publications

  • Page 1 of 1

Diversity of exotic ectomycorrhizal from pine plantations in Patagonia.

Mycologia 2019 Sep-Oct;111(5):782-792. Epub 2019 Sep 23.

Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.

We present an account of introduced from plantings of exotic pine plantations in Argentine Patagonia. Nuc rDNA internal transcribed spacer ITS1-5.8S-ITS2 (ITS) and nuc 28S rDNA (28S) sequences were used to identify specimens from Argentina and examine their relationships with geographically different species. Based on phylogenetic analyses, we confirm that four species of occur in pine plantations across Patagonia. Several collections from plantations across different provinces cluster with , a species within . subg. . The majority of Patagonian , however, form three different lineages in . subg. . The first of these, sensu Trappe, includes numerous collections from , and stands of North American affiliation. The second, sensu Martin and Garcia from plantations, clusters in clade IIIa of the complex, which also includes the holotype collection of from the Czech Republic. The third species in . subg. , and fourth species overall from Patagonia, is from plantations. Multiplex polymerase chain reaction (PCR) of numerous samples failed to produce an amplicon indicative of either Japanese or New Zealand shoro.
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http://dx.doi.org/10.1080/00275514.2019.1647395DOI Listing
March 2020

A discussion on the genus (Hymenochaetaceae, Hymenochaetales) and first record of from southern South America.

MycoKeys 2018 28(38):77-91. Epub 2018 Aug 28.

Laboratorio de Química de Productos Naturales, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Región del Bío Bío, Chile.

has traditionally been delimited based on the gross morphology of the basidiomes, hyphal structure and basdiospores. Recently, phylogenetic studies supported the incorporation of an extensive number of species within the genus. Although most of its species are nested in the 'Phellinotus clade' (Hymenochaetaceae, Basidiomycota), genera such as , and were not included in previous analysis. To further our understanding of the genus, new sequences from 28S and ITS nuc rDNA genes were jointly analysed with a large selection of taxa in the 'Phellinotus clade', also with re-examination of morphological and ecological data. Results showed several lineages in what has hitherto been considered to represent , indicating that the genus is paraphyletic as presently circumscribed. There is a well-supported core group that includes the type species and nine other monophyletic lineages with high support, of which those representing , and are distinct from the core group by macro and micromorphological traits and/or biogeographic distribution. , a species described from SE USA, was found in the Patagonian forests of southern Argentina and Chile; it is the taxon responsible for the white heart-rot found on standing and one of the taxa decaying wooden tiles of historic churches in Chiloé Is., Chile.
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http://dx.doi.org/10.3897/mycokeys.38.27310DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6160837PMC
August 2018

The phylogenetic position of poroid Hymenochaetaceae (Hymenochaetales, Basidiomycota) from Patagonia, Argentina.

Mycologia 2015 Jul-Aug;107(4):754-67. Epub 2015 Apr 24.

Centro Forestal CIEFAP-CONICET, CC14, 9200 Esquel, Chubut, Argentina and Universidad Nacional de la Patagonia SJ Bosco, Ruta 259 km 16.2, 9200 Esquel, Chubut, Argentina.

Six poroid Hymenochaetaceae from Patagonia, Argentina, were studied phylogenetically with nuc rDNA internal transcribed spacer (ITS) and partial 28S rDNA sequences, together with morphological data. Two new genera and a new species are introduced as well as two new combinations proposed. Arambarria destruens gen. et sp. nov. is proposed for a taxon fruiting on fallen or standing, dead Diostea juncea and Lomatia hirsuta and previously recorded erroneously as Inocutis jamaicensis; it is distinguished by annual, effused to effused-reflexed basidiomes forming pilei, a monomitic hyphal system, thick-walled and yellowish basidiospores (brownish chestnut in potassium hydroxide solution), lack of a granular core in the context and lack of setoid elements. Nothophellinus gen. nov. is proposed to accommodate Phellinus andinopatagonicus, the main white wood-rotting polypore of standing Nothofagus pumilio and also an important wood-decayer of other Nothofagus species from southern Argentina and Chile. It is morphologically similar to Phellopilus (type species P. nigrolimitatus) but differs by lacking setae. The new combinations Pseudoinonotus crustosus and Phellinopsis andina are proposed for Inonotus crustosus and Phellinus andinus, respectively. Phellinus livescens, which decays the sapwood of several standing Nothofagus species, is closely related to Phellinus uncisetus, a Neotropical species related to Fomitiporia; for the time being P. livescens is retained in Phellinus sensu lato. An unidentified taxon responsible for a white heart-rot in living Austrocedrus chilensis grouped with Phellinus caryophyllii and Fulvifomes inermis, but its generic affinities remain ambiguous. Transmission electron microscopy studies confirm this unidentified taxon has an imperforate parenthesome, which is typical of the Hymenochaetaceae.
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http://dx.doi.org/10.3852/14-170DOI Listing
September 2015

Phylogenetic relationships of Hydnum peroxydatum support the synonymy of Hydnochaete with Hymenochaete (Hymenochaetaceae, Agaricomycetes).

Mycologia 2014 Mar-Apr;106(2):323-7

Programa de Pós-Graduação em Botânica, Departamento de Botânica, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, CEP 91501-970, Rio Grande do Sul, Brazil.

A combined dataset of rDNA ITS and LSU sequences was used to infer the phylogenetic relationships of Hydnochaete peroxydata (≡ Hydnum peroxydatum), the type species of Hydnochaete. The species was retrieved nested within the Hymenochaete s. str. clade; therefore Hydnochaete is regarded as a synonym of Hymenochaete and the new combination Hymenochaete peroxydata is proposed.
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http://dx.doi.org/10.3852/106.2.323DOI Listing
July 2014