1,721,002 research outputs found
Checklist of the Argentine Agaricales 6. Paxillaceae, Gomphidiaceae, Boletaceae, and Russulaceae
Full text linkA checklist of species belonging to families Paxillaceae, Gomphidiaceae, Boletaceae, and Russulaceae was made for Argentina. The list includes all species published up to 2011. Sixteen genera and 54 species are recorded: 15 species from Paxillaceae, 3 from Gomphidiaceae, 11 from Boletaceae, and 25 from Russulaceae.Fil: Niveiro, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentin
Two new species of Hohenbuehelia from Argentina
No full textDuring a revision of the genus Hohenbuehelia in Argentina, two new specieswere found: H. austrocedri from the province of Chubut, and H. minutissimafrom the province of Buenos Aims. Both belong to subgenus Hohenbuehelia section Nigricans. In the present paper we describe and illustrate the two new species and compare them with H. singeri, H. nigra, H. bullulifera and H. unguicularis. In addition, we studied the holotype of H. pilitomaculoides, which we reduceto a synonym of H. nigra.Fil: Fazio, Alejandra Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas ; Argentin
Naturally Occurring Strains of Edible Mushrooms: A Source to Improve the Mushroom Industry
No full textMushroom cultivation worldwide is based mainly on three species: Agaricus bisporus, Pleurotus ostreatus, and Lentinula edodes. Species can be classified based on how they obtain their nutrients: symbiotic, growing in association with other organisms; pathogenic or parasitic, causing harm to other organisms; and saprobic, growing on dead organic matter. The symbiotic species of edible mushrooms are associated with trees and the production of fruiting bodies requires high investment and time. The current production of mushrooms is based on the domestication process of many strains, and were selected because of their quality and productivity. Steps for domestication of naturally occurring species of mushroom include strain isolation, determination of optimal conditions for mycelia growth, spawn production, and mushroom parameters. The study of naturally occurring species could be a useful practice to improve yields, to introduce new species to markets, and to preserve germplasm of fungal species before their natural environments are disrupted or destroyed by human action.Fil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentin
Optimal conditions for the fruit body production of natural occurring strains of Lentinus tigrinus
Full text linkLentinus tigrinus is a species with a fleshy pileus, strong odor and agreeable taste. In order to determine the optimal conditions for the production of this species, three substrates based on Salix sp. sawdust, wheat straw and supplements were tested in 500 g dry weight bags at two different fruiting temperatures. Naturally occurring strains of this species were incubated at 30 °C. Primordium initiation could be observed 11–16 days after induction conditions began. This species produced highest yields with biological efficiency (BE) of 62% with supplemented sawdust at 25 °C. When bags were reduced to 100 g dry weight, spawning run time was reduced from 28 to 30 to 10 to 14 days and BE increased more than 100%. L. tigrinus is a promising species with possibilities for commercial production.Fil: Lechner, Bernardo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas ; Argentin
Cultivation requirements and substrate degradation of the edible mushroom Gymnopilus pampeanus—A novel species for mushroom cultivation
No full textThe production of new species of edible mushrooms is an innovative way to recycle agro-industrial wastes into food production. The genus Gymnopilus has a large number of xylophagous species being Gymnopilus pampeanus the only consumed species. The objective of this work is to determine the optimal condition needed to cultivate G. pampeanus, to evaluate its biological efficiency and to determine the biodegradation of substrate. Populus and Eucalyptus sawdust were used as substrates for production. We determined that light is necessary for a normal development of primordia. Strain ICFC 748/12 produces the highest biological efficiency on Populus sawdust reaching a mean of 70.67%. G. pampeanus has a strong capacity to degrade Eucalyptus and Populus. This mushroom has the ability to decompose cellulose and also to decay lignin, thus being white rot fungi. This is the first report of the cultivation of this species on lignocellulosic waste which turns it into a promising species for commercial production.Fil: Colavolpe, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentin
Hemimycena longipleurocystidiata (Mycenaceae, Agaricomycetes), a new species from the Argentinean Atlantic Forest
Full text linkThe Atlantic Forest is the second largest South American tropical-subtropical rainforest and one of the most diverse ecosystems on earth. Hemimycena longipleurocystidiata, a fungal species collected in the Argentinean Atlantic forest, is proposed as new. It is characterized by its whitish and large basidiomata with large pleuro- and cheilocystidia. The species is here described and illustrated and a key is provided to the Hemimycena species known from Argentina.Fil: Niveiro, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Popoff, Orlando Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentin
Mycena holoporphyra (Mycenaceae, Agaricomycetes), first record from Argentina
Full text linkEste es el primer registro de Mycena holoporphyra para la micobiota Argentina. Se describe e ilustra esta especie, analizan las diferencias con las especies cercanas, y se incluye una clave para identificar las especies de Mycena sect. Calodontes subsect. Purae de la Argentina.This is the first record of Mycena holoporphyra for the Argentinean mycobiota. We describe and illustrate this especies, and discuss differences with its closest taxa. A key to the species of Mycena sect. Calodontes subsect. Purae from Argentina is also includedFil: Niveiro, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Popoff, Orlando Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; Argentin
Functional evaluation of ToxA promoter in Trichoderma reesei Rut-C30
Full text linkIn order to expand the collection of promoters studied in Trichoderma reesei Rut-C30, a functional study of the ToxA promoter was carried out by analysis of GFP expression in T. reesei Rut-C30. For this purpose, the binary pCBCT expression vector was employed to transform T. reesei Rut-C30. The transformants obtained were evaluated by means of fluorescence microscopy, fluorometry, dot blot and Western blot analysis. The low levels of cytoplasmic GFP protein in fungal hyphae suggest that ToxA promoter works as a weak constitutive promoter which can drive successfully the expression of heterologous proteins in T. reesei Rut-C30Fil: Ortiz, Gastón Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; ArgentinaFil: Blasco, Martín. Instituto Nacional de Tecnología Industrial; Argentin
Mushroom cultivation and biogas production: A sustainable reuse of organic resources
No full textThe industry of mushroom cultivation uses a wide variety of lignocellulosic waste and is considered a very efficient way to recycle agro-residues and to produce food. This activity generates tons of spent mushroom substrate (SMS) every year, causing a significant disposal challenge. The SMS is a useful resource for the generation of biogas, since raw material is digested by the metabolism of fungi, performing as a pre-treatment, thus facilitating the subsequent anaerobic digestion and increasing the yield of methane production. Forty-one species of fungi have been used as pre-treatment in different types of residues; among them, 13 were cultivated mushrooms. The potential production of methane using SMS pre-treated with cultivated mushrooms should be added to the list of other common residues used, such as food/vegetable waste and pig manure. Biogas can be used as fuel, and the residues from biogas can be used as fertilizers for food crops. These productive activities can be integrated in a virtuous circle of reuse of organic resources; in which the waste of one activity is used as a substrate for another activity. Given the huge amount of SMS produced, we propose to integrate it into a virtuous circle of resource reutilization for energy generation, particularly as a viable substrate for biogas generation.Fil: Perez Chávez, Ana Marión. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: Mayer, Leopoldo. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentin
Utilization of new naturally occurring strains and supplementation to improve the biological efficiency of the edible mushroom Agrocybe cylindracea
No full textTo evaluate the importance of searching new naturally occurring strains to raise yields in mushroom production, eight wild and four commercial strains of Agrocybe cylindracea were cultivated on wheat straw. The highest biological efficiencies (BE) (54.5–72.4%) were obtained with three wild and two commercial strains when cultured on non-supplemented wheat straw. Rolled oats or soybean flour supplementation were tested using three selected strains, increasing BEs up to 1.2, 0.5 and 0.7-fold, respectively. This effect of supplementation was stronger in the Asiatic wild strain, yielding up to 41.1 and 30% more than the two other strains with rolled oats and soybean flour, respectively. The Asiatic wild strain cultivated with soybean flour supplementation achieved an average biological efficiency of 179%, to our knowledge, the highest reported for this species. These results show the importance of searching for new naturally occurring strains in combination with supplemented wheat straw substrate for raising yields in A. cylindracea cultivation.Fil: Uhart, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: Piscera, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: Alberto, Edgardo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentin
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