Botanical origin of honey from south of Caldén district (Argentina)

We performed palynological analysis of 75 honey samples from the south of Caldén district, which is the part of the phytogeographical province del Espinal. Prosopis caldenia, "caldén" (Fabaceae) is the dominant arboreal species in this region. 79 pollen types that belong to 36 plant families were identified. Honeydew elements are absent or present in negligible amounts. Native flora is intensely utilized. Main nectar sources that characterize monofloral honey samples, are these natives Condalia microphylla (Rhamnaceae), Prosopis sp. and Vicia sp. (Fabaceae), Larrea divaricata (Zygophyllaceae) and Brassicaceae, which are foreign to the area. The pollen from these plants along with the pollen of Trichocline sp. (Asteraceae) and Prosopidastrum globosum (Fabaceae), Schinus fasciculatus (Anacardiaceae), Astereae and Lycium sp. (Solanaceae), characterize honey from Caldén.Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plat

Botanical origin of honey from south of Caldén district (Argentina)

We performed palynological analysis of 75 honey samples from the south of Caldén district, which is the part of the phytogeographical province del Espinal. Prosopis caldenia, "caldén" (Fabaceae) is the dominant arboreal species in this region. 79 pollen types that belong to 36 plant families were identified. Honeydew elements are absent or present in negligible amounts. Native flora is intensely utilized. Main nectar sources that characterize monofloral honey samples, are these natives Condalia microphylla (Rhamnaceae), Prosopis sp. and Vicia sp. (Fabaceae), Larrea divaricata (Zygophyllaceae) and Brassicaceae, which are foreign to the area. The pollen from these plants along with the pollen of Trichocline sp. (Asteraceae) and Prosopidastrum globosum (Fabaceae), Schinus fasciculatus (Anacardiaceae), Astereae and Lycium sp. (Solanaceae), characterize honey from Caldén.Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plat

Lagarobasidium calongei (Aphyllophorales, Basidiomycota), a new species of corticioid fungi from Azores Islands

6 pages, 3 figures.[EN] On the base of morphologic and molecular studies, a new species of the genus Lagarobasidium (Aphyllophorales, Basi - diomycota), is described and illustrated. This new species was collected on Pico Island (Azores) and is characterized by having two types of cystidia, clavate leptocystidia and cylindrical skeletocystidia, and smooth, thick-walled spores. It is compared with Lagarobasidium detriticum (Bourdot) Jülich and L. cymosum (D.P. Rogers & H.S. Jacks.) Jülich, until now the only two species of the genus.[ES] Sobre la base de estudios morfológicos y moleculares se describe e ilustra una nueva especie dentro del género Lagarobasidium (Aphyllophorales, Basidiomycota). Esta nueva especie, recolectada en la isla de Pico (Azores), se caracteriza por presentar dos tipos de cistidios, leptocistidios claviformes y esqueletocistidios cilíndricos, y esporas lisas con paredes gruesas. Se compara con Lagarobasidium detriticum (Bourdot) Jülich y L. cymosum (D.P. Rogers & H.S. Jacks.) Jülich, las otras dos especies del género.Financial support was given by DGI project n.º CGL2005- 01192, Biogeographic interconnections of the Corticiaceae (Aphyl lo phorales, Basidiomycota) of the Macaronesian Islands.Peer reviewe

Una visión de género en el Área de Recursos Naturales

Not availableSe me pide que escriba, dentro de este monográfico dedicado a una «visión de género» en el CSIC, acerca de la situación concreta en el área de Recursos Naturales. El encargo que se me hace es para mí doblemente complicado. Por un lado, he de escribir sobre algo de lo que únicamente tengo una vaga opinión personal, a buen seguro sesgada, fruto de mi particular experiencia y de mi trayectoria vital lo que, para el caso que nos ocupa, tampoco es tan importe pues es la opinión de una entre muchas. Por otro, es un tema sumamente complejo y abordarlo con el rigor metodológico suficiente, como para poder extraer conclusiones que tengan algún interés general, es algo que se escapa, desde todo punto de vista, a mis conocimientos y a los datos de los que dispongo. De tal modo que lo que a continuación viene es fruto de una opinión particular aunque, para emitirla, he procurado documentarme previamente. Los datos objetivos, relativos a la situación concreta de las investigadoras del CSIC, los he tomado, entre otras fuentes, del «Estudio sobre mujeres investigadoras del CSIC» [http://www.csic.es] y, los relativos al área, del último Plan de Actuación del CSIC, 2000-2004. He consultado, así mismo, otras fuentes relativas a la plantilla actual de personal investigador del Organismo

Towards a unified paradigm for sequence-based identification of fungi

Kõljalg, Urmas et al.The nuclear ribosomal internal transcribed spacer (ITS) region is the formal fungal barcode and in most cases the marker of choice for the exploration of fungal diversity in environmental samples. Two problems are particularly acute in the pursuit of satisfactory taxonomic assignment of newly generated ITS sequences: (i) the lack of an inclusive, reliable public reference data set and (ii) the lack of means to refer to fungal species, for which no Latin name is available in a standardized stable way. Here, we report on progress in these regards through further development of the UNITE database (http://unite.ut.ee) for molecular identification of fungi. All fungal species represented by at least two ITS sequences in the international nucleotide sequence databases are now given a unique, stable name of the accession number type (e.g. Hymenoscyphus pseudoalbidus|GU586904|SH133781.05FU), and their taxonomic and ecological annotations were corrected as far as possible through a distributed, third-party annotation effort. We introduce the term ‘species hypothesis’ (SH) for the taxa discovered in clustering on different similarity thresholds (97–99%). An automatically or manually designated sequence is chosen to represent each such SH. These reference sequences are released (http://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and in the QIIME pipeline. The system and the data will be updated automatically as the number of public fungal ITS sequences grows. We invite everybody in the position to improve the annotation or metadata associated with their particular fungal lineages of expertise to do so through the new Web-based sequence management system in UNITE.The North European Forest Mycologists network is acknowledged for support. Urmas Kõljalg and Kessy Abarenkov are supported by the Estonian Research Council grant no 8235.Peer reviewe

Molecular analyses confirm Brevicellicium in Trechisporales

The genus Brevicellicium encompasses wood-inhabiting corticioid fungi characterized by isodiametric subhymenial hyphae, short basidia, and smooth, often subangular spores with a distinct apiculus. Eight new LSU nrDNA sequences and 13 new ITS nrDNA of this genus, including the type species, were aligned with 47 and 42 accessions respectively of species of Trechisporales obtained from GenBank, and phylogenetic analyses were performed. The order Trechisporales was confirmed as a monophyletic group; the genera Porpomyces, Sistotremastrum, Subulicystidium and Trechispora form a highly supported clade where all Brevicellicium sequences are included. Our analyses also support that this genus belongs to Hydnodontaceae. A new species, Brevicellicium atlanticum from the Azores Archipelago, is described.Peer Reviewe

Botanical origin of honey from south of Caldén district (Argentina)

We performed palynological analysis of 75 honey samples from the south of Caldén district, which is the part of the phytogeographical province del Espinal. Prosopis caldenia, "caldén" (Fabaceae) is the dominant arboreal species in this region. 79 pollen types that belong to 36 plant families were identified. Honeydew elements are absent or present in negligible amounts. Native flora is intensely utilized. Main nectar sources that characterize monofloral honey samples, are these natives Condalia microphylla (Rhamnaceae), Prosopis sp. and Vicia sp. (Fabaceae), Larrea divaricata (Zygophyllaceae) and Brassicaceae, which are foreign to the area. The pollen from these plants along with the pollen of Trichocline sp. (Asteraceae) and Prosopidastrum globosum (Fabaceae), Schinus fasciculatus (Anacardiaceae), Astereae and Lycium sp. (Solanaceae), characterize honey from Caldén.Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plat