Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt

Havana, Cuba

Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt

Havana, Cuba

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Leao-Ferreira S.M.,State University of Feira de Santana | Gusmao L.F.P.,State University of Feira de Santana | Castaneda Ruiz R.F.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt
Nova Hedwigia | Year: 2013

In a survey of saprobic conidial fungi from the semi-arid Caatinga biome, northeast of Brazil, three new species, Arachnophora polybrachiata, Hermatomyces uniseriatus and Vanakripa inexpectata, are proposed. Dendryphiosphaera taiensis is a new record for the American continent and Luzfridiella insignis, Memnoniella levispora, Periconia jabalpurensis, Pseudopetrakia kambakkamensis, Sadasivania girisa and Vanakripa rhizophorae are new records from South America. Notes, illustrations and descriptions based on natural substrates are presented for all species. © 2013 J. Cramer in Gebr. Borntraeger Verlagsbuchhandlung, Stuttgart, Germany.


Castaneda Ruiz R.F.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt | Abarca G.H.,Institute Ecologia | Mota R.M.A.,Institute Ecologia | Becerra C.I.,Institute Ecologia | And 3 more authors.
Mycotaxon | Year: 2010

Elotespora mexicana anam. gen. & sp. nov., found on decaying wood of an unidentified plant, is described and illustrated. It is distinguished by minute, scattered, cupulate conidiomata in which a single, large, muriform, elongate ellipsoid to cylindrical brown conidium is produced. The conidial development of this fungus is unclear.


Da Silva M.,Federal University of Viçosa | Castaneda-Ruiz R.F.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt | Pereira O.L.,Federal University of Viçosa | Barreto R.W.,Federal University of Viçosa
Mycotaxon | Year: 2012

A dematiaceous fungus associated with trichomes on leaflets of Dimorphandra mollis was collected during a survey of fungi associated with the genus Dimorphandra (Fabaceae). The host tree is endemic to the Brazilian Cerrado. Although widely distributed there, this plant has been neglected in mycological studies, since no fungus has ever been recorded in association with it. The new fungus produces large alveariform (skep or beehiveshaped), muriform, dictyosporous, distoseptate, verruculose conidia from large, thickened, dark washer-like conidiogenous loci. Among previously described anamorphic genera, this fungus is somewhat similar to Annellophragmia, Annellosympodia, Briansuttonia, Dictyospiropes, and Veracruzomyces as well as Spiropes dictyosporus but has some significant differences from those taxa. Hence, the new genus Alveariospora (type species: A. distoseptata sp. nov.) is proposed for this fungus. © 2012. Mycotaxon, Ltd.


Heredia G.,Institute Ecologia | Arias-Mota R.M.,Institute Ecologia | Castaneda-Ruiz R.F.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt | Gamboa-Angulo M.,Research Center Cientifica Of Yucatan
Mycological Progress | Year: 2012

During an investigation of anamorphic fungi on tropical plant debris from the Yucatan Peninsula, Mexico, two new species in the genera Hughesinia and Stachybotryna were described. Additionally, 15 other anamorphic fungi were determined; five of them are newly recorded for Mexico. Hughesinia heterospora sp. nov. is characterized by conidiophores macronematous light brown, conidiogenous cells monotretic and dark brown, muriform conidia which differ from other species of Hughesinia in having great morphological heterogeneity. Stachybotryna variegata sp. nov. is characterized by conidiophores macronematous light brown, variegated setae, brown below and hyaline towards the apex, conidiogenous cells monophialidic and ellipsoidal to broadly fusiform, guttulate, hyaline conidia. Descriptions, illustrations and keys are provided. © 2012 German Mycological Society and Springer.


Becerra-Hernandez C.I.,Institute Ecologia | Heredia G.,Institute Ecologia | Arias R.M.,Institute Ecologia | Castaneda-Ruiz R.F.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt | Mena-Portales J.,Institute Ecologia y Sistematica
Acta Botanica Mexicana | Year: 2011

A total of 15 species of saprobe anamorphic fungi collected in a fragment of jungle of the Centro de Interpretación y Convivencia con la Naturaleza Yumka' in the state of Tabasco are described. For all species studied, the number of records worldwide are scarce, a reason for which we consider them to be rare. Of the species studied, six are new reports for the Neotropical region and all represent new records for Mexico and Tabasco. In addition, eight of them had not been reported since their original description. A morphological description, illustrations and up-to-date known world distributions are included for each taxon. A new name Sporidesmium multiforme nom. nov is proposed for Sporidesmium polymorphum R.F. Castañeda. The descriptions that appear were done from material extracted directly from the leaf litter.


Pino J.,Institute Investigaciones para la Industria Alimentaria | Fuentes V.,Institute Investigaciones en Fruticultura Tropical | Barrios O.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt
Food Chemistry | Year: 2011

The steam volatile components of three cultivars of Cachucha mature peppers (Capsicum chinense Jacq.) were isolated by steam-distillation-continuous-extraction and analysed using GC and GC-MS. The composition of volatile compounds of the peppers differs clearly for the different cultivars. The content of volatile compounds, responsible for the flavour of Cachucha peppers, varied between 110.71 and 302.53mgkg-1. One hundred and thirty-six compounds were identified, from which hexyl isopentanoate, hexyl pentanoate, hexyl 2-methylbutanoate, 3,3-dimethylcyclohexanol, γ-himachalene and germacrene D were the major ones. © 2010 Elsevier Ltd.


Crous P.W.,Fungal Biodiversity Center | Crous P.W.,University Utrecht | Crous P.W.,Wageningen University | Verkley G.J.M.,Fungal Biodiversity Center | And 3 more authors.
Persoonia: Molecular Phylogeny and Evolution of Fungi | Year: 2012

The genus Dinemasporium is used as a case study to evaluate the importance of conidial appendages for generic level classification of coelomycetous fungi. Based on morphology and sequence data of the large subunit nuclear ribosomal RNA gene (LSU, 28S) and the internal transcribed spacers and 5.8S rRNA gene of the nrDNA operon, the genus Dinemasporium is circumscribed, and an epitype designated for D. strigosum, the type of the genus. A further five species are introduced in Dinemasporium, namely D. pseudostrigosum (isolated from Triticum aestivum, Germany and Stigmaphyllon sagraeanum, Cuba), D. americana (soil, USA), D. polygonum (Polygonum sachalinense, Netherlands), D. pseudoindicum (soil, USA), and D. morbidum (human sputum, Netherlands and hare dung, New Zealand). Brunneodinemasporium, based on B. brasiliense, is introduced to accommodate Dinema sporium like species with tightly aggregated brown conidiogenous cells, and pale brown conidia. Dendrophoma (= Amphitiarospora) is reinstated as distinct from Dinemasporium, and an epitype designated for D. cytisporoides, characterised by its superficial, stipitate to cupulate conidiomata, and small conidia with two polar, tubular, exogenous appendages. The genus Stauronema is reduced to synonymy under Dinemasporium. Pseudolachnea (1-septate conidia) is supported as distinct from Dinemasporium (aseptate conidia), and P. fraxini introduced as a novel species. Taxa in this generic complex differ by combination of morphological characters of conidiomata, setae, conidia and appendages. Appendage morphology alone is rejected as informative at the generic level. © 2012 Nationaal Herbarium Nederland & Centraalbureau voor Schimmelcultures.


Castaneda-Ruiz R.F.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt | Heredia G.,Institute Ecologia Ac | Arias R.M.,Institute Ecologia Ac
Mycotaxon | Year: 2013

Two microfungi collected from plant debris in cloud forests during a survey of the fungi associated with leaf litter in Veracruz are described and illustrated. Digitella rigidophora gen. et sp. nov. is distinguished by polytretic conidiogenous cells having a successive sympodial but rectilinear or geniculated proliferation and with discoid to papillateperforate thickened conidiogenous loci and digitate solitary dark brown to brown conidia. Redbia inflata sp. nov. is characterized by alternate, curved to coiled, slightly echinulate branches that possess a distinct ampulla at the ends and by coarsely verruculose, subhyaline, 0-1-septate conidia. © 2013. Mycotaxon, Ltd.


Xia J.-W.,Shandong Agricultural University | Ma L.-G.,Shandong Agricultural University | Ma Y.-R.,Shandong Agricultural University | Castaneda-Ruiz R.F.,Institute Investigaciones Fundamentales En Agricultura Tropical Alejandro Of Humboldt | Zhang X.-G.,Shandong Agricultural University
Cryptogamie, Mycologie | Year: 2013

Abstract Corynesporopsis curvularioides sp. nov. is described and illustrated from specimens collected on dead branches in Guangxi Province. The fungus is characterized by its terminal, monotretic conidiogenous cells with catenate, obclavate to ellipsoidal, pale brown to brown, 15-35 × 7-11 m, 1-5-euseptate conidia. Brachysporiellina pulneyensis, Catenularia cubensis and Kylindria excentrica are newly recorded from China. © 2013 Adac. Tous droits réservés.

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