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| Registros recuperados: 431 | |
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| ARENAS-CASTRO,Henry; MUNOZ-GOMEZ,Sergio A; CASTAÑO-CASTAÑO,Lorena; URIBE-ACOSTA,Melissa; LIZARAZO-MEDINA,Pilar Ximena. |
| Biological collections in natural history museums serve important purposes to the scientific community and the general public, however, their value and utility might be diminished by biodeterioration. We studied a biological collection that represents more than sixty years of avifauna sampling of Colombia, the country with the highest bird diversity. An initial inspection of the collection showed that the general appearance of some specimens was compromised by mold-like growth on their surfaces. We aimed at (i) identifying the taxonomic affiliation of these fungi, (ii) evaluating their cellulolytic activity, and (iii) probing chemical agents that could be utilized to control their growth. The most common fungi genera were Aspergillus, Penicillium,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bird collection; Cellulolytic activity; Fungi; Fungicides; Museum. |
| Ano: 2016 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000100016 |
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| Nogueira-Melo,Georgea Santos; Lira,Carla Rejane de Sousa; Ryvarden,Leif; Gibertoni,Tatiana Baptista. |
| ABSTRACT Junghuhnia is a cosmopolitan genus of Agaricomycetes (Basidiomycota), mostly characterized by having a dimitic hyphal system and encrusted cystidia. The genus comprises 37 legitimate species, eight of which have been reported in Brazil. This study provides updated information about the diversity and distribution of Junghuhnia in Brazil by reporting J. semisupiniformis for the first time from South America, J. globospora from Brazil, J. carneola from northeastern Brazil and the state of Pará, J. nitida from the state of Pernambuco, and J. subundata from the state of Amazonas. Descriptions of J. semisupiniformis and J. globosbora, as well a key to the accepted species of Junghuhnia from Brazil, are provided. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon Forest; Atlantic Forest; Caatinga; Fungi; Polypores. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200266 |
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| Nogueira-Melo,Georgea S.; Santos,Paulo J. P.; Gibertoni,Tatiana B.. |
| ABSTRACT This study aimed to investigate for the first time the ecological interactions between species of Agaricomycetes and their host plants in Brazilian mangroves. Thirty-two field trips were undertaken to four mangroves in the state of Pernambuco, Brazil, from April 2009 to March 2010. One 250 x 40 m stand was delimited in each mangrove and six categories of substrates were artificially established: living Avicennia schaueriana (LA), dead A. schaueriana (DA), living Rhizophora mangle (LR), dead R. mangle (DR), living Laguncularia racemosa (LL) and dead L. racemosa (DL). Thirty-three species of Agaricomycetes were collected, 13 of which had more than five reports and so were used in statistical analyses. Twelve species showed significant values for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungi; Estuaries; Host-fungi interaction; Host-relationships; Plant-fungi interaction. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400566 |
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| Nunes,Lucas; Burle,Giulia; Gumboski,Emerson Luiz; Dechoum,Michele. |
| ABSTRACT Lichens play a key role in natural ecosystems, as they can function as primary producers, recycle minerals and fix nitrogen. Despite their environmental importance, little is known about lichen ecology in Brazil, and especially about how abiotic factors may influence their spatial distribution. In this study, we aimed to verify how the cover and richness of corticolous lichens on Araucaria angustifolia trunks vary between two different habitats (Forest and Grassland). The photoquadrat sampling method was applied to A. angustifolia trunks. The Coral Point Count software with Excel extensions (CPCe) was used to analyze photographs for lichen cover and richness. Additionally, a redundancy analysis was conducted to estimate how five abiotic and two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascomycota; Corticolous lichens; Environmental selectivity; Fungi; Lichen ecology; Niche overlap. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100021 |
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| Nascimento,Cristiane de Almeida; Pires-Zottarelli,Carmen Lidia Amorim. |
| Para o estudo da diversidade de Chytridiales, coletas mensais de água e solo foram realizadas, de junho/2005 a junho/2006, no Parque Estadual da Serra da Cantareira, Estado de São Paulo. O isolamento destes fungos foi realizado por meio do método de iscagem múltipla de amostras de água e solo, em laboratório, com substratos celulósicos, quitinosos e queratinosos. Dezenove espécies foram identificadas, sendo quatro novas ocorrências para o Brasil, Cladochytrium setigerum Karling, Diplophlyctis intestina (Schenk) J. Schröt, Rhizophydium macroporosum Karling e Solutoparies pythii Whiffen ex W.H. Blackw. & Powell, e Septochytrium willoughbyi Dogma primeira citação para o Estado de São Paulo. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversidade; Fungi; Mata Atlântica; Quitridiomicetos. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062009000200018 |
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| Di Domenico, Adriana Sbardelotto; Busso, Cleverson; Hashimoto, Elisabete Hiromi; Frata, Marcela Tostes; Christ, Divair; Coelho, Sílvia Renata Machado. |
| The aim of this study was to assess alternatives for viable corn storage for small rural properties in two annual storage experiments. A 4×5 factorial design was used with four types of storage (conventional bags, hermetic bags, metal silos and corncobs) and five periods of storage (0, 3, 6, 9 and 12 months). We used corn hybrids 2B688RR and 30K73Hx cultivated in winter 2012 and summer 2012/2013 in the city of Dois Vizinhos, Paraná, Brazil. The moisture contents, counts of Aspergillus sp. and Fusarium sp., and the occurrence of aflatoxins (B1, B2, G1 and G2) were assessed. The kernels stored in hermetic bags had lower moisture contents. Aspergillus sp. and Fusarium sp. were observed in 20.37 and 86.11% of winter storage samples, respectively, and in 83.3... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.03.03.02-3; 5.07.01.03-7 Armazenamento de Produtos Agrícolas/Microbiologia de Alimentos Zea mays L.; Fungi; Mycotoxins; Grain storage; Food safety Armazenamento de Produtos Agrícolas/Microbilogia Aplicada. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/25621 |
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| Souza, Gisele Ferreira; Universidade Estadual de Maringá; Mossini, Simone Aparecida Galerani; Universidade Estadual de Maringá; Arroteia, Carla Cristina; Universidade Estadual de Maringá; Kemmelmeier, Carlos; Universidade Estadual de Maringá; Machinski Junior, Miguel; Universidade Estadual de Maringá. |
| Aflatoxins are carcinogens produced by Aspergillus flavus, A. parasiticus and A. nomius. In the present study, peanut samples were collected at different phenological stages of the plant during the 2007/2008 and 2008/2009 seasons and from stored peanuts harvested in 2007/2008. The mycoflora and aflatoxins in the peanuts were evaluated. The results showed the presence of Fusarium spp., Macrophomina spp., Trichoderma spp., Aspergillus spp. and Cladosporium spp. during the period of peanut maturation (39.8, 17.9, 8.2, 2.7 and 1.7%, respectively) and storage (49.8, 27.8, 12.5, 8.8 and 1.0%, respectively). However, aflatoxins were not detected in the samples. Of the 25 Aspergillus spp. isolates, 24 (96%) were producers of aflatoxin B1 (96%), 10 (40%) of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.02.00-1 mycotoxins; Fungi; Aspergillus spp.; Toxigenic potential; Arachis hypogaea L. Fitossanidade Microbiologia Toxicologia. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16972 |
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| Camerini, Felipe Vieira; Chanin, Carlo do Amaral; Borba, Carina Molins; Costa, Jorge Alberto Vieira; Burkert, Carlos André Veiga; Burkert, Janaína Fernandes de Medeiros. |
| Biosurfactant are surface active compounds with emulsifying capacity and are produced by microorganisms, and they may be affected by factors related to microbial cultivation, such as pH, salinity, incubation time, carbon and nitrogen sources. The aim of this work was to study the influence of the culture conditions on the production of biosurfactants by Phialemonium sp using agroindustrial wastes. The processing parameters of temperature, humidity and pH produced the most significant effects on the production of biosurfactant and emulsifying activity. The maximum concentration of biosurfactant obtained in this study was equivalent to a surface tension reduction of 8.5 mg L-1 surfactin commercial solution using wheat bran, pH of 4.5, and 0.5% of soybean oil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.07.01.00-2 fermentation; Fungi; Surfactin; Rice; Wheat; Surfactant; Lipase. 2.12.02.02-8. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43484 |
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| TRONCOZO,MARÍA I.; FIGOLI,CECILIA B.; FRANCO,MARIO E.E.; MIRÍFICO,MARÍA V.; BOSCH,ALEJANDRA; RAJCHENBERG,MARIO; BALATTI,PEDRO A.; SAPARRAT,MARIO C. N.. |
| Abstract Grape pomace from Vitis labrusca is an important sub-product of the “American table wine” industry. It is recalcitrant to degradation, and its accumulation is a serious problem with negative environmental impacts. We analyzed the ability of five white-rot fungi to transform this residue in-vitro. Mass loss and phenol removal in grape pomace treated with each fungus were compared after 30-day solid-state fermentation. Since Peniophora albobadia isolate LPSC 285 was the fungus that showed the highest degradative ability and the lowest free phenol levels in the residue transformed, we selected this fungus to monitor its effect on this residue after 30, 60, and 90 days of incubation. We analyzed mass loss of the residue caused by the fungus activity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungi; Grape pomace; Peniophora albobadia; Transformation; Vitis labrusca. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100704 |
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| KELECOM,ALPHONSE. |
| After 40 years of intensive research, chemistry of marine natural products has become a mature field. Since 1995, there are signals of decreased interest in the search of new metabolites from traditional sources such as macroalgae and octocorals, and the number of annual reports on marine sponges stabilized. On the contrary, metabolites from microorganisms is a rapidly growing field, due, at least in part, to the suspicion that a number of metabolites obtained from algae and invertebrates may be produced by associated microorganisms. Studies are concerned with bacteria and fungi, isolated from seawater, sediments, algae, fish and mainly from marine invertebrates such as sponges, mollusks, tunicates, coelenterates and crustaceans. Although it is still to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria; Fungi; Alkaloids; Despsipeptides; Terpenoids; Acetogenins; Biological activities. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000100012 |
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| Freire,B.C.; Garcia,V.C.; Quadrini,A.E.; Bentubo,H.D.L.. |
| ABSTRACT Boids are large, constrictor snakes that feed mostly on mammals, reptiles, and birds. These animals are commonly raised as pets, and their improper handling can favor the emergence of fungal infections, which can lead to dermatological diseases that are undiagnosed in nature. Here, we isolate and identify the filamentous fungi that compose the mycobiota of the scales of boid snakes kept in captivity at the Biological Museum of the Butantan Institute. Thirty individuals of four species were evaluated: four Eunectes murinus, twelve Boa constrictor constrictor, seven Corallus hortulanus, and seven Epicrates crassus. Microbiological samples were collected by rubbing small square carpets on the snake scales. We isolated five genera of fungi:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbiology; Filamentous; Fungi; Reptiles. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000401093 |
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| Aquino,S.; Lui,C.C.; Corrêa,B.. |
| ABSTRACT The quality of products derived from eggs depends on the quality of the raw material source and the industrial production. The contamination by fungi and bacteria can occur after exposure of the product in the retail market. The objective of this study was to evaluate the microbiological quality of 60 samples of derivated egg products and evaluate the effects of gamma radiation of cobalt-60, using the dose of 5 and 10 kGy, for decontamination of products collected in the retail market in the São Paulo city. The bacterial count was performed by the most probable number (MPN) and the fungal counts by serial dilution after plating surface. It was observed a decrease in the humidity and water activity (Aw) values of irradiated whole egg powder and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria; Sterilization; Fungi; Irradiation; Powdered egg. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000601683 |
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| Magalhães,Karine Matos; Lima,Maria Cecília Santana de; Santos,Ednilza Maranhão; Correia,Jozélia Maria de Sousa; Silva,Ana Carolina Borges Lins e. |
| Abstract: We present a checklist for the aquatic biodiversity from two reservoirs within a PPBio (Biodiversity Research Program) site in a peri-urban forest fragment, the Dois Irmãos State Park (PEDI), in Pernambuco, Brazil. We obtained the data via extensive field collection and information from a specialized literature survey. We recorded 397 species in 156 families; the animal was the most abundant group (140 species) followed by fungi taxa (103), periphyton (69), aquatic macrophytes (44), and terrestrial plants in flooded areas (41). This review reflects different sample efforts toward selected groups and allows the definition of a long-term protocol for guiding new research based on the identified knowledge gaps revealed. Future ecological research... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: PPBio; PEDI site; Aquatic macrophytes; Fungi; Aquatic Fauna. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400313 |
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| Wright,Jorge E.; Wright,Alicia M.. |
| A check-list of the fungi recorded from Iguazú National Park, one of the best known preserved areas in South America, has been compiled mainly on the basis of Rolf Singer´s and our own collections and publications. Ten species of Dictyosteliales, 4 of Myxomycetes, 4 of Pezizales, 9 of Hypocreales, 31 of other Ascomycetes, 3 Deuteromycotina and 314 of Basidiomycetes are annotated. This last group is by far the best known, and includes 13 species of jelly-fungi, 6 coral fungi, 84 resupinates, 90 Agaricales s. l., 111 polypores of which 26 are poroid Hymenochaetaceae, and 11 of Gasteromycetes. Furthermore, 8 Ascomycetes, 58 Basidiomycetes and 2 Deuteromycotina were determined to genus. Lichens have been excluded. The microfungi of the Park have hardly been... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Fungi; Subtropics. |
| Ano: 2005 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100004 |
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| Lavornia,Juan M; García,Renato A; Rosato,Vilma G; Kristensen,María J; Chayle,Jorge A; Saparrat,Mario N. |
| El Instituto de Botánica Carlos Spegazzini (IBCS) (UNLP, La Plata) contiene un herbario de hongos (LPS) de aproximadamente 40000 ejemplares, con 4200 especies tipo. El objetivo de este trabajo fue examinar los ejemplares de hongos liquenizados depositados en el IBCS, actualizar su taxonomía y denominación, revisar las especies con determinación dudosa, identificar aquellos no determinados, e incorporarlos en el Herbario LPS. Se estudiaron 192 ejemplares de 11 provincias de Argentina y de Brasil, Uruguay y Francia y de se determinaron en base a su exo-morfología, cortes histológicos y reacciones histoquímicas. También se realizaron Cromatografías en Capa Delgada (TLC) para estudiar los metabolitos presentes. Se estableció la distribución geográfica en... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungi; Herbario LPS; Líquenes; Argentina. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722017000100001 |
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| Cinto,Isabel E.; Dokmetzian,Diana A.; Ranalli,María E.. |
| The aim of this study was to delimit two Iodophanus species: I. carneus and I. testaceus , based on morphological characteristics and electrophoretic patterns of their intracellular isozymes. Twenty monosporic strains were used, including five belonging to I. granulipolaris as a control. Fourteen isozyme systems were tested, and the five having the best resolution selected: aspartate aminotransferase, esterases, alkaline phosphatase, glutamate dehydrogenase, and superoxide dismutase. These analyses confirmed the similarity between I. carneus and I. testaceus , since they both produced the same band patterns, which were in turn different from the band pattern of I. granulipolaris. So, as we couldn´t find any character wich permit us to classify the isolated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungi; Lodophanus; Isozymes; Synonymy; Taxonomy. |
| Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722007000200005 |
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| Registros recuperados: 431 | |
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