1,721,033 research outputs found
Airborne fungi in an Italian rice mill
No full textStudies employing volumetric spore trap (VSP) and gravity settling culture plates (GSC) were conducted in order to analyse the air spora of a rice mill at Pavia, Italy, from October-December 1988. Results revealed a variety of fungal spores belonging to different genera and including recognized rice pathogenic fungi. The most frequent genera by GSC method included Acremonium, Alternaria, Aspergillus, Aureobasidium, Cladosporium, Epicoccum, Fusarium, Helminthosporium, Mucor, Nigrospora, Penicillium, Rhizopus, Trichoderma, Trichothecium, and some unidentified fungi. Environmental assessment of fungal spores by VSP revealed that the most prevalent fungi were:Alternaria, Cladosporium, Epicoccum, Helminthosporium, Nigrospora, Pyricularia, Tilletia and hyaline, dark and coloured types of ascospores and basidiospores. Airborne fungal spore concentrations were particularly high (5,000-6,000 spores/m3) in the rooms of the rice mill where the initial stages of rough rice transformation take place, and dropped to 2,500 spores/m3 in the last room, where workers are. During a temporary interruption of the working processes, air spora concentration dropped below 1,000 spores/m3. Cladosporium, Epicoccum and Nigrospora spores were predominant in all subdivisions of the indoor environments of the rice mill
Fungi isolated from Antarctic mosses
No full textMicrofungi were isolated from different moss species in Victoria Land. Twenty-eight taxa belonging to 18 genera were identified. New records for continental Antarctica were: Arthrobotrys superba, Conidiobolus sp., Penicillium minioluteum, Verticillium psalliotae and V. lamellicola. The most frequently isolated fungal species were: Cladosporium cladosporioides, Cryptococcus albidus, Cryptococcus laurentii, Geomyces pannorum var. pannorum, G. pannorum var. vinaceus, Mortierella antarctica, Cadophora malorum, Phoma herbarum and V. lecanii, Bryum pseudotriquetrum was the moss richest in fungal species. Within the Antarctic environment, moss is one of the microhabitats richest in microfungi, particularly in psychrophilic indigenous species
Micromiceti associati a suoli strutturati del tipo cuscinatti erbosi nelle Alpi Retiche. Dati preliminari.
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
