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Arbuscular mycorrhizal fungal communities in native and in replanted Araucaria forest Scientia Agricola
Moreira,Milene; Baretta,Dilmar; Tsai,Siu Mui; Cardoso,Elke Jurandy Bran Nogueira.
Araucaria angustifolia is an important Brazilian conifer, but it is endangered of extinction due to excessive logging. The objective of the present case study was to survey data on the diversity of AMF in Araucaria angustifolia forests, and to learn whether it is possible to discriminate between the AMF communities associated with natural, introduced, and impacted-by-anthropogenic-action ecosystems. Three ecosystems representative of the Campos do Jordão (São Paulo State, Brazil) region were selected, as follows: (i) a native climax forest, with predominance of Araucaria trees, without anthropogenic interference (NF), (ii) Araucaria forest introduced in 1959 (RE), and (iii) Araucaria forest introduced in 1958, submitted to accidental fire in July 2001...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AMF; Brazil Pine; Diversity; Spore density; Accidental fire.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000500013
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Arbuscular mycorrhizal fungi on the biomass and nutrition of Urochloa decumbens at different soil densities PAB
Sales,Luciane Reis; Silva,Geanderson Nascimento da; Siqueira,Raphael Henrique da Silva; Carneiro,Marco Aurélio Carbone; Faquin,Valdemar.
Abstract: The objective of this work was to evaluate the influence of arbuscular mycorrhizal fungi (AMF) on the accumulation of shoot and root biomass and on the nutrient contents of Urochloa decumbens grown in soils with different densities. The experiment was carried out in a randomized complete block design, in a 4x2 factorial arrangement: four soil densities (1.0, 1.2, 1.4, and 1.6 kg dm-3) with and without inoculation of AMF, with four replicates. The biomass accumulation (dry matter weight of shoot and roots) and macro- and micronutrient contents of U. decumbens were determined at different soil densities. The mycorrhizal colonization of the plants was evaluated, and the number of mycorrhizal spores present in the soil was determined. The biomass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AMF; Dry matter; Macro - and micronutrients; Soil compaction.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000800943
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Diversity of arbuscular mycorrhizal fungi in forest ecosystems of Brazil: a review. Repositório Alice
WINAGRASKI, E; KASCHUK, G.; MONTEIRO, P. H. R.; AUER, C. G.; HIGA, A. R..
Plants can stablish symbiosis with arburcular mycorrhiza fungi (AMF), in which the fungus uses carbohydrates synthesized by plant photosynthesis in exchange for soil nutrients. AMF symbiosis may benefit plants by increasing the rates of nutrient uptake, tolerance to abiotic stresses, protection against pathogens and, by promoting resilience of forest species to adverse conditions. Knowledge about the diversity of mycorrhizas may help stablish relationships of species selection, AMF production and inoculation. Therefore, the objective of this review is to compile information to identify existing patterns in AMF diversity in Brazilian forest ecosystems. Compilation was based in 74 articles (in English, Portuguese and Spanish languages) searched in the Web of...
Tipo: Artigo de periódico Palavras-chave: Bioma; Planted forest; Succession; Symbiotic association; Floresta plantada; AMF; Micorriza; Mycorrhizal fungi.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1108467
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Do different arbuscular mycorrhizal fungi affect the formation and stability of soil aggregates? Ciência e Agrotecnologia
Barbosa,Marisângela Viana; Pedroso,Daniela de Fátima; Curi,Nilton; Carneiro,Marco Aurélio Carbone.
ABSTRACT Soil structure, which is defined by the arrangement of the particles and the porous space forming aggregates, is one of the most important properties of the soil. Among the biological factors that influence the formation and stabilization of soil aggregates, arbuscular mycorrhizal fungi (AMF) are distinguished due to extrarradicular hyphae and glomalin production. In this context, the objective of this study was to evaluate different AMF (Acaulospora colombiana, Acaulospora longula, Acaulospora morrowiae, Paraglomus occultum and Gigaspora margarita) associated with Urochloa brizantha (A. Rich.) Stapf on soil aggregate stability. The study was conducted in a completely randomized design, using an Oxisol and autoclaved sand 2:1 (v/v), with seven...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AMF; Urochloa brizantha; Extrarradicular mycelia; Aggregation soil and structure..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100218
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Effect of Inoculation of Pineapple Plantlets with Arbuscular Mycorrhizal Fungi Obtained from Different Inoculum Sources Multiplied by the On-Farm Method Rev. Bras. Ciênc. Solo
Moreira,Bruno Coutinho; Prates Junior,Paulo; Jordão,Thuany Cerqueira; Silva,Marliane de Cássia Soares da; Ribeiro,Ana Paula Ferreira; Stürmer,Sidney Luiz; Salomão,Luiz Carlos Chamhum; Otoni,Wagner Campos; Kasuya,Maria Catarina Megumi.
ABSTRACT The production of inoculum from arbuscular mycorrhizal fungi (AMF) at a large scale and low cost is essential for establishing methods to assist in producing pineapple plantlets with high nutritional and phytosanitary quality. However, this objective is difficult to accomplish because of the biotrophic nature of these fungi. The on-farm multiplication method for AMF inoculum presents a good alternative to supply the demand for the production of glomerospores. This study aimed to multiply and evaluate AMF inoculum originating from isolated species (including Rhizophagus clarus, Claroideoglomus etunicatum) versus native AMF from pineapple and coffee plantations multiplied by the on-farm method on the colonization in pineapple plantlets. Initially,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycorrhizal inoculant; Spore viability; AMF; Rhizophagus clarus; Claroideoglomus etunicatum.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100409
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Interactions between an arbuscular mycorrhizal fungus (Scutellospora heterogama) and the root-knot nematode (Meloidogyne incognita) on sweet passion fruit (Passiflora alata) BABT
Anjos,Érika Cristina Teixeira dos; Cavalcante,Uided Maaze Tiburcio; Gonçalves,Danielle Maria Correia; Pedrosa,Elvira Maria Regis; Santos,Venézio Felipe dos; Maia,Leonor Costa.
The effects of inoculation of sweet passion fruit plants with the arbuscular mycorrhizal (AM) fungus Scutellospora heterogama on the symptoms produced by Meloidogyne incognita race 1 and its reproduction were evaluated in two greenhouse experiments. In the 1st, the M. incognita (5000 eggs/plant) and S. heterogama (200 spores/plant) inoculations were simultaneous; in the 2nd, the nematodes were inoculated 120 days after the fungal inoculation. In both the experiments, 220 days after AM fungal inoculation, plant growth was stimulated by the fungus. In disinfested soil, control seedlings (without S. heterogama) were intolerant to parasitism of M. incognita, while the growth of mycorrhized seedlings was not affected. Sporulation of S. heterogama was negatively...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AMF; Biological control; Mycorrhizal symbiosis; Nematode reproduction; Passifloraceae.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400008
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Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil BJM
Gattai,Graziella S; Pereira,Sônia V; Costa,Cynthia M. C; Lima,Cláudia E. P; Maia,Leonor C.
The goals of this study were to evaluate the microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants (Caesalpinia ferrea, Mimosa tenuiflora and Erythrina velutina) in lead contaminated soil from the semi-arid region of northeastern of Brazil (Belo Jardim, Pernambuco). Dilutions were prepared by adding lead contaminated soil (270 mg Kg-1) to uncontaminated soil (37 mg Pb Kg soil-1) in the proportions of 7.5%, 15%, and 30% (v:v). The increase of lead contamination in the soil negatively influenced the amount of carbon in the microbial biomass of the samples from both the dry and rainy seasons and the metabolic quotient only differed between the collection seasons in the 30% contaminated soil. The average value of the acid phosphatase...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AMF; Contaminated soil; Heavy metals; Mycorrhizae; Semi-arid.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300004
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Optimization of the production of mycorrhizal inoculum on substrate with organic fertilizer BJM
Coelho,Ieda R; Pedone-Bonfim,Maria VL; Silva,Fábio SB; Maia,Leonor C.
The system for production of inoculum of arbuscular mycorrhizal fungi (AMF) using sand and vermiculite irrigated with nutrient solution is promising. However, organic amendments added to the substrate can stimulate sporulation of AMF and replace the nutrient solution. The aim of this study was to maximize the production of AMF (Acaulospora longula, Claroideoglomus etunicatum, Dentiscutata heterogama and Gigaspora albida) using selected organic substrates (vermicompost, coir dust and Tropstrato) together with sand and vermiculite. The production of spores varied among the tested AMF and according to the organic source added to the substrate. The vermicompost promoted higher sporulation of A. longula in relation to the other AMF and substrates. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AMF; Biofertilizer; Vermicomposto; Inoculum.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400007
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Producción de un biofertilizante a partir de HMA para el cultivo de maíz en suelos de sabana. Colegio de Postgraduados
Osorio Miranda, Mateo.
El presente trabajo se realizó con el objetivo de seleccionar un consorcio de hongos micorrícicos arbusculares (HMA) para producir un biofertilizante destinado al maíz cultivado en suelos de sabana. En un estudio previo se caracterizaron y clasificaron taxonómicamente HMA asociados al maíz en suelos de sabana en Tabasco. A partir de estas cepas se obtuvieron cinco consorcios que fueron evaluados en el presente estudio mediante la prueba del Número más Probable de Propágulos, seleccionando los tres consorcios más efectivos. Estos fueron propagados en diferentes sustratos para determinar el más adecuado para formular el biofertilizante. Los sustratos ensayados fueron: Cachaza Composteada y suelos Fluvisol y Acrisol, estériles y no estériles, en un diseño de...
Palavras-chave: HMA; Maíz; Inoculantes; Consorcios; Biofertilizante; Rendimiento; AMF; Maize; Inoculants; Consortia; Biofertilizers; Yield corn; Producción Agroalimentaria en el Trópico; Maestría.
Ano: 2011 URL: http://hdl.handle.net/10521/575
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Producción de un biofertilizante a partir de HMA para el cultivo de maíz en suelos de sabana. Colegio de Postgraduados
Osorio Miranda, Mateo.
El presente trabajo se realizó con el objetivo de seleccionar un consorcio de hongos micorrícicos arbusculares (HMA) para producir un biofertilizante destinado al maíz cultivado en suelos de sabana. En un estudio previo se caracterizaron y clasificaron taxonómicamente HMA asociados al maíz en suelos de sabana en Tabasco. A partir de estas cepas se obtuvieron cinco consorcios que fueron evaluados en el presente estudio mediante la prueba del Número más Probable de Propágulos, seleccionando los tres consorcios más efectivos. Estos fueron propagados en diferentes sustratos para determinar el más adecuado para formular el biofertilizante. Los sustratos ensayados fueron: Cachaza Composteada y suelos Fluvisol y Acrisol, estériles y no estériles, en un diseño de...
Palavras-chave: HMA; Maíz; Inoculantes; Consorcios; Biofertilizante; Rendimiento; AMF; Maize; Inoculants; Consortia; Biofertilizers; Yield corn; Producción Agroalimentaria en el Trópico; Maestría.
Ano: 2011 URL: http://hdl.handle.net/10521/575
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The role of plant-associated bacteria, fungi, and viruses in drought stress mitigation. Repositório Alice
POUDEL, M.; MENDES, R.; COSTA, L. S. A. S.; BUENO, C. G.; MENG, Y.;  FOLIMONOVA, S. Y.; GARRETT, K. A.; MARTINS, S. J..
Abstract: Drought stress is an alarming constraint to plant growth, development, and productivity worldwide. However, plant-associated bacteria, fungi, and viruses can enhance stress resistance and cope with the negative impacts of drought through the induction of various mechanisms, which involve plant biochemical and physiological changes. These mechanisms include osmotic adjustment, antioxidant enzyme enhancement, modification in phytohormonal levels, biofilm production, increased water and nutrient uptake as well as increased gas exchange and water use efficiency. Production of microbial volatile organic compounds (mVOCs) and induction of stress-responsive genes by microbes also play a crucial role in the acquisition of drought tolerance. This review...
Tipo: Artigo de periódico Palavras-chave: Food security; Plant-microbiome interaction; AMF; PGPR; Fauna Microbiana; Microbiologia do Solo; Solo; Microbiome; Climate change; Food security; Arabidopsis.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1140859
Registros recuperados: 11
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