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| 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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| 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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| 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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| 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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| 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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| 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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