Vesicular Arbuscular Mycorrhizal Fungi
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Ocorrência de micorriza vesicular-arbuscular em Erva-mate (Ilex paraguariensis St. Hil.).
1986
Boletim de Pesquisa Florestal. Publicado em: 2011
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2. High coffee population to improve fertility of an oxisol.
The objective of this work was to evaluate the effect of coffee (Coffea arabica L.) population densities on the chemical and microbiological properties of an Oxisol. The work was carried out on soil samples of 0-20 cm depth originated from an experimental site which had been used for coffee tree spacing studies during 15 years, in Parana State, Brazil. Eight
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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3. Efeitos de fungos MVA e doses de fosforo nos teores de nutrientes em tangerineira 'Cleopatra'.
Este estudo foi conduzido na escola Superior de Agricultura de Lavras, com o objetivo de verificar os efeitos de doses de fosforo e da infeccao com fundo micorrizico vesicular-arbuscular sobre os teores de P, Ca, Mg, S, Cu e Mn em tangerineiras 'Cleopatra', ate o ponto de repicagem. O delineamento experimental adotado foi inteiramente casualizado, em esquema
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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4. Uso de microorganismos promotores de crescimento como tecnologia para incrementar a produção de madeira e sequestro de carbono de Schizolobium amazonicum Huber ex Ducke (Paricá) em condições de campo
Schizolobium amazonicum Heber ex Ducke occurs naturally in Amazon and presents huge commercial importance due to its rapid growth and excellent performance on cropping systems a fact that has been raising much interest in the study of new strategies to increase more efficiently the wood yield. The use of soil microorganisms and its growth-promoting potent
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/04/2010
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5. Atividades enzimáticas na rizosfera de espécies leguminosas nativas mediadas por rizobactérias e micorrizas arbusculares
Early soil-quality indicators may be useful when monitoring plant reestablishment, especially in degraded environments. Among soil-quality indicators, soil enzymes may reflect the potential in turning some nutrients available for plants, since most of them are related to nutrients transformation in soil. Besides the intrinsic effects of vegetation on soil en
Publicado em: 2005
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6. Produção de mudas cítricas em viveiro: uso de substrato alternativo e inoculação com Xylella fastidiosa. / Production of citrus seedlings in nursery: use of alternative substratum and inoculation with Xylella fastidiosa.
Alternative substrates have being used for a better establishment of plants at nursery stages, thus ensuring that healthier plants will be transferred to the field. In the case of Citrus, this is a concern especially when there is a past history of diseases at field conditions, such as Citrus Variegated Chlorosis caused by Xylella fastidiosa (X.f.). This stu
Publicado em: 2004
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7. Identification of a Vesicular-Arbuscular Mycorrhizal Fungus by Using Monoclonal Antibodies in an Enzyme-Linked Immunosorbent Assay †
Spore morphology is currently used to identify species of vesicular-arbuscular mycorrhizal fungi. We report the first use of a highly specific immunological method for identification of a vesicular-arbuscular mycorrhizal fungus. Two monoclonal antibodies were produced against Glomus occultum. Monoclonal antibodies reacted strongly with both spores and hyphae
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8. Extensive In Vitro Hyphal Growth of Vesicular-Arbuscular Mycorrhizal Fungi in the Presence of CO2 and Flavonols
Various flavonoids were tested for their ability to stimulate in vitro growth of germinated spores of vesicular-arbuscular mycorrhizal fungi. Experiments were performed in the presence of 2% CO2, previously demonstrated to be required for growth of Gigaspora margarita (G. Bécard and Y. Piché, Appl. Environ. Microbiol. 55:2320-2325, 1989). Only the flavonol
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9. Stimulation of Vesicular-Arbuscular Mycorrhizal Fungi by Mycotrophic and Nonmycotrophic Plant Root Systems
Transformed root cultures of three nonmycotrophic and one mycotrophic plant species stimulated germination and hyphal growth of the vesicular-arbuscular mycorrhizal fungus Glomus etunicatum (Becker & Gerd.) in a gel medium. However, only roots of the mycotrophic species (carrot) supported continued hyphal exploration after 3 to 4 weeks and promoted appressor
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10. Increased Sporulation of Vesicular-Arbuscular Mycorrhizal Fungi by Manipulation of Nutrient Regimens †
Adjustment of pot culture nutrient solutions increased root colonization and sporulation of vesicular-arbuscular mycorrhizal (VAM) fungi. Paspalum notatum Flugge and VAM fungi were grown in a sandy soil low in N and available P. Hoagland nutrient solution without P enhanced sporulation in soil and root colonization of Acaulospora longula, Scutellospora heter
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11. Airstream Fractionation of Vesicular-Arbuscular Mycorrhizal Fungi: Concentration and Enumeration of Propagules
Spores and fragments of vesicular-arbuscular mycorrhizal fungi in dry soils were concentrated up to 100-fold when the soils were partitioned by fluidization and elutriation with a series of upward airstreams at progressively increasing velocities. The propagules were transported with the finer soil particles according to their equivalent spherical diameters.
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12. Partitioning of Intermediary Carbon Metabolism in Vesicular-Arbuscular Mycorrhizal Leek.
Vesicular-arbuscular mycorrhizal fungi are symbionts for a large variety of crop plants; however, the form in which they take up carbon from the host is not established. To trace the course of carbon metabolism, we have used nuclear magnetic resonance spectroscopy with [13C]glucose labeling in vivo and in extracts to examine leek (Allium porrum) roots coloni