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| Registros recuperados: 28 | |
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| Oliveira,João Ricardo Gonçalves de; Morais,Thiago Alberto de Lima; Melo,Natoniel Franklin de; Yano‑Melo,Adriana Mayumi. |
| The objective of this work was to assess the potential of three isolates of arbuscular mycorrhizal fungi to promote growth of micropropagated plantlets of Tapeinochilos ananassae during acclimatization. The experiment was carried out in greenhouse, in a completely randomized block design, with four inoculation treatments: non‑inoculated control and plants inoculated with Glomus etunicatum, Acaulospora longula or Gigaspora albida, with ten replicates. After 90 days, the following parameters were evaluated: survival rate, height, leaf and tiller number, leaf area, fresh and dry biomass, contents of macro‑ and micronutrients in the root and shoot, glomerospore number, and mycorrhizal colonization. The survival percentage was 100%, except for plants inoculated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glomeromycota; Growth promotion; Micropropagation; Mineral nutrition; Tropical flowers. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000900018 |
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| SANTIAGO, F. L. de A.; BARBOSA, M. V.; CARNEIRO, M. A. C.; SAGGIN JUNIOR, O. J.. |
| Nas coleções de Fungos Micorrízicos Arbusculares (FMAs) a criopreservação é restrita, pois devido ao grande tamanho e conteúdo líquido dos esporos, eles são mortos pelo congelamento. Poucos estudos mostram sucesso na criopreservação de FMAs, utilizando condições bastante caras e inacessíveis à maioria das coleções. O objetivo desse estudo foi avaliar adaptações aos protocolos de criopreservação, para utilização nas condições e equipamentos disponíveis na maioria das instituições de pesquisa nacionais. Foi testado o efeito do encapsulamento em alginato de sódio sobre a germinação dos esporos de quatro espécies de FMAs (Rhizophagus clarus, Dentiscutata heterogama; Acaulospora morrowiae e Gigaspora margarita) e, com a espécie que apresentou maior taxa de... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Coleção biológica; Preservação de germoplasma; Crioprotetores; Congelamento; Glomeromycota. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126137 |
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| Teixeira,Anita Fernanda dos Santos; Kemmelmeier,Karl; Marascalchi,Matheus Nicoletti; Stürmer,Sidney Luiz; Carneiro,Marco Aurélio Carbone; Moreira,Fatima Maria de Souza. |
| ABSTRACT Arbuscular mycorrhizal fungi (AMF) interact symbiotically with most plant species, facilitating revegetation of areas under rehabilitation. The aim of this study was to evaluate the inoculum potential, density, and diversity of AMF spores in five environments, as well as the relation of species with soil properties. Soil samples were collected in five environments in a mining area and its surroundings in the Quadrilátero Ferrífero, Minas Gerais (Brazil): tailings piles in rehabilitation with grass, canga, Cerrado, native forest, and eucalyptus plantation; these samples were subjected to chemical and physical analyses. Spores were directly extracted from field samples and from trap cultures (TCs) established in two locations in the Southeast and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tailings piles; Glomeromycota; Ironstone; Rehabilitation.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000500511 |
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| Souza,Tancredo Augusto Feitosa de; Rodriguez-Echeverría,Susana; Andrade,Leonaldo Alves de; Freitas,Helena. |
| Abstract Many plant species from Brazilian semi-arid present arbuscular mycorrhizal fungi (AMF) in their rhizosphere. These microorganisms play a key role in the establishment, growth, survival of plants and protection against drought, pathogenic fungi and nematodes. This study presents a quantitative analysis of the AMF species associated with Mimosa tenuiflora, an important native plant of the Caatinga flora. AMF diversity, spore abundance and root colonization were estimated in seven sampling locations in the Ceará and Paraíba States, during September of 2012. There were significant differences in soil properties, spore abundance, percentage of root colonization, and AMF diversity among sites. Altogether, 18 AMF species were identified, and spores of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AMF community structure; AMF-plant pairing; Dryland; Glomeromycota. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200359 |
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| Souchie,Edson L.; Saggin-Júnior,Orivaldo J.; Silva,Eliane M.R.; Campello,Eduardo F.C.; Azcón,Rosario; Barea,Jose M.. |
| Communities of P-solubilizing bacteria, fungi and arbuscular mycorrhizal fungi, were evaluated in two different ecosystems. Samplings taken from two areas of Atlantic forest, in Paraty - RJ, Brazil, one with a secondary forest and the other with a grass pasture were studied. Four growth media: GL (glucose and yeast extract), GES (glucose, soil extract, KNO3, CaCl2, MgSO4, NaCl, FeEDTA and micronutrients solution), GAGES (glucose, soil extract, arabinose, glycerol, CaCl2, MgSO4 and NaCl) and GELP (glucose, soil extract, yeast extract, peptone, CaCl2, MgSO4 and NaCl) were evaluated for the isolation of P-solubilizing microorganisms. The identification of P-solubilizing bacteria was based on 16 S rDNA sequence analysis, while the identification of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphate; Enterobacteriaceae; Atlantic Forest; Glomeromycota; Soil microorganisms. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000100016 |
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| Novais,Candido Barreto de; Pepe,Alessandra; Siqueira,José Oswaldo; Giovannetti,Manuela; Sbrana,Cristiana. |
| ABSTRACT: Arbuscular mycorrhizal fungi (AMF), which live in symbiosis with 80 % of plants, are not able to grow when separated from their hosts. Spore germination is not host-regulated and germling growth is shortly arrested in the absence of host roots. Germling survival chances may be increased by hyphal fusions (anastomoses), which allow access to nutrients flowing in the extraradical mycelium (ERM). Perfect anastomoses, occurring with high frequency among germlings and the ERM of the same isolate, show protoplasm continuity and disappearance of hyphal walls. A low frequency of perfect fusions has been detected among co-specific genetically different isolates, although fungal nuclei have been consistently detected in all perfect fusions, suggesting... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glomeromycota; Hyphal fusions; Incompatible hyphal interactions; Protoplasmic flow; Nuclear migration. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000500411 |
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| Azevedo,Lucas Carvalho Basilio de; Stürmer,Sidney Luiz; Lambais,Marcio Rodrigues. |
| Sugarcane (Saccharum spp.) is grown on over 8 million ha in Brazil and is used to produce ethanol and sugar. Some sugarcane fields are burned to facilitate harvesting, which can affect the soil microbial community. However, whether sugarcane pre-harvest burning affects the community of arbuscular mycorrhizal fungi (AMF) and symbioses development is not known. In this study, we investigated the early impacts of harvest management on AMF spore communities and root colonization in three sugarcane varieties, under two harvest management systems (no-burning and pre-harvest burning). Soil and root samples were collected in the field after the first harvest of sugarcane varieties SP813250, SP801842, and RB72454, and AMF species were identified based on spore... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glomeromycota; Slash-and-burn; Sugarcane harvest management; No-burning. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300032 |
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| Lopes Leal,Patrícia; Varón-López,Maryeimy; Gonçalves de Oliveira Prado,Isabelle; Valentim dos Santos,Jessé; Fonsêca Sousa Soares,Cláudio Roberto; Siqueira,José Oswaldo; de Souza Moreira,Fatima Maria. |
| Abstract Spore counts, species composition and richness of arbuscular mycorrhizal fungi, and soil glomalin contents were evaluated in a soil contaminated with Zn, Cu, Cd and Pb after rehabilitation by partial replacement of the contaminated soil with non-contaminated soil, and by Eucalyptus camaldulensis planting with and without Brachiaria decumbens sowing. These rehabilitation procedures were compared with soils from contaminated non-rehabilitated area and non-contaminated adjacent soils. Arbuscular mycorrhizal fungi communities attributes were assessed by direct field sampling, trap culture technique, and by glomalin contents estimate. Arbuscular mycorrhizal fungi was markedly favored by rehabilitation, and a total of 15 arbuscular mycorrhizal fungi... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glomeromycota; Heavy metals; Soil contamination; Mycorrhiza; Revegetation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400853 |
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| Irrazabal,G.; Schalamuk,S.; Velázquez,M. S.; Cabello,M.. |
| Se investigó la presencia de hongos formadores de micorrizas arbusculares asociados a plantas colectadas en un agroecosistema y en un bosque nativo de tala, en la provincia de Buenos Aires. Las especies que constituyen un nuevo registro para la Argentina son: Scutellospora dipapillosa (Walker & Koske) Walker & Sanders y Scutellospora fulgida Koske & Walker halladas en la rizósfera de Triticum aestivum L.; Scutellospora gilmorei (Trappe & Gerd.) Walker & Sanders, en la rizósfera de Celtis tala Gill. Ex Planch., Scutia buxifolia Reiss. y plantas herbáceas; Acaulospora delicata Walker, Pfeiffer & Bloss. y Glomus clarum Nicolson & Schenck, halladas en ambos sitios. Estas especies son citadas, descriptas e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glomeromycota; Micorrizas arbusculares; Agroecosistema; Talares. |
| Ano: 2005 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100003 |
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| Silva,Maryluce Albuquerque da; Silva,Fábio Sérgio Barbosa da; Yano-Melo,Adriana Mayumi; Melo,Natoniel Franklin de; Maia,Leonor Costa. |
| Visando selecionar fungos micorrízicos arbusculares (FMA) e substratos para produção de mudas micropropagadas de alpinia (Alpinia purpurata) e sorvetão (Zingiber spectabile), conhecidas espécies ornamentais tropicais, foram inoculadas mudas com 1.500 propágulos infectivos de Gigaspora albida, Glomus etunicatum e Acaulospora longula, em recipientes contendo: (a) solo; (b) solo e vermicomposto (3:1) e (c) solo, areia e vermicomposto (2:2:1). O delineamento foi inteiramente casualizado em fatorial de: quatro tratamentos de inoculação (três com FMA e controle não inoculado), três substratos, oito repetições, para cada vegetal. Após 70 (Z. spectabile) e 100 (A. purpurata) dias da inoculação, parâmetros de crescimento da planta foram avaliados tais como altura,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Micropropagação; Glomeromycota; Flores tropicais. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000200001 |
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| Gomide,Plínio Henrique Oliveira; Silva,Marx Leandro Naves; Soares,Cláudio Roberto Fonsêca Sousa; Cardoso,Evaldo Luis; Carvalho,Fernanda de; Leal,Patrícia Lopes; Marques,Rodrigo Magalhães; Stürmer,Sidney Luiz. |
| O bioma Pantanal é reconhecido como uma das maiores extensões úmidas contínua do planeta, com fauna e flora de rara beleza e abundância. Estudos para acessar a diversidade de fungos micorrízicos arbusculares (FMA) nesse ambiente são inexistentes. O objetivo deste trabalho foi avaliar a ocorrência de FMA nas diferentes fitofisionomias do Pantanal da Nhecolândia, Mato Grosso do Sul. Foram coletadas amostras de solo no período seco e chuvoso em um Neossolo Quartzarênico, em fitofisionomias sujeitas a distintos regimes de inundação: livres de inundação - Floresta Semidecídua (FS) e Cerradão (CE); sujeitos à inundação ocasional - Campo limpo, predominando Elyonorus muticus (CLE) e Cerrado (CC); e sujeitos à inundação sazonal - Campo limpo, predominando... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Micorrizas; Diversidade; Riqueza de espécies; Abundância de esporos; Glomeromycota. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400007 |
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| NUNES,HELIAB B.; GOTO,BRUNO T.; COIMBRA,JOÃO LUIZ; OLIVEIRA,JAMILE S.; TAVARES,DÉRICA G.; ROCHA,MARCELO S.; SILVA,FABIANE L.; SOARES,ANA CRISTINA F.. |
| Abstract: Conventional cotton production in western Bahia, Brazil, involves intensive use of agricultural inputs and mechanization, which may affect arbuscular mycorrhizal fungi (AMF). This work aimed at studying the impact of conventional and organic cotton production in the AMF of western Bahia. Soil samples were obtained from conventional white cotton and colored cotton organic production systems as well as from native Cerrado areas, close to the white cotton fields, and from the subcaducifolia vegetation, close to the organic colored cotton farms. The most frequent species in the conventional farming areas belonged to the genera Acaulospora (10 spp.); Glomus (8 spp.); Dentiscutata (3 spp.); Ambispora, Pacispora and Scutellospora (2 spp. each), as well... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycorrhiza; BRS Safira cotton variety; BRS 336 variety; Glomeromycota. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700858 |
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| Registros recuperados: 28 | |
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