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Arbuscular mycorrhizal fungal communities and soil aggregation as affected by cultivation of various crops during the sugarcane fallow period Rev. Bras. Ciênc. Solo
Truber,Priscila Viviane; Fernandes,Carolina.
Management systems involving crop rotation, ground cover species and reduced soil tillage can improve the soil physical and biological properties and reduce degradation. The primary purpose of this study was to assess the effect of various crops grown during the sugarcane fallow period on the production of glomalin and arbuscular mycorrhizal fungi in two Latosols, as well as their influence on soil aggregation. The experiment was conducted on an eutroferric Red Latosol with high-clay texture (680 g clay kg-1) and an acric Red Latosol with clayey texture (440 g kg-1 clay) in Jaboticabal (São Paulo State, Brazil). A randomized block design involving five blocks and four crops [soybean (S), soybean/fallow/soybean (SFS), soybean/millet/soybean (SMS) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glomalin; Hyphae; Eutroferric Red Latosol; Acric Red Latosol.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200006
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Esophageal pythiosis in an ostrich (Struthio camelus) Arq. Bras. Med. Vet. Zootec.
Souto,E.P.F.; Pessoa,C.R.M.; Pessoa,A.F.A.; Trost,M.E.; Kommers,G.D.; Correa,F.R.; Dantas,A.F.M..
RESUMO Uma avestruz-do-pescoço-vermelho, com dois anos de idade, apresentava um nódulo no terço médio do esôfago e foi submetida a procedimento cirúrgico. Histologicamente, observou-se uma área focalmente extensa de necrose estendendo-se da túnica mucosa à muscular, e, em algumas secções, à túnica adventícia. Circundando a área de necrose, observou-se uma reação inflamatória composta principalmente por granulócitos e macrófagos, associada à fibroplasia e neovascularização. Em meio às áreas de necrose e inflamação, verificavam-se numerosas imagens negativas de hifas em seções longitudinais e transversais, melhor apreciadas pela coloração de metenamina nitrato de prata de Grocott. O diagnóstico definitivo de infecção por Pythium insidiosum foi confirmado por...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Avian diseases; Esophagitis; Hyphae.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000301081
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Evaluation of the mycelial network formed by arbuscular mycorrhizal hyphae in the rhizosphere of papaya and other plants under intercropping system BJM
Cruz,André Freire; Ishii,Takaaki; Matsumoto,Isao; Kadoya,Kazuomi.
An experiment was carried out under greenhouse conditions to observe the distribution of arbuscular mycorrhizal (AM) hyphae in the rhizosphere of papaya and other plants under intercropping system. Special acrylic root boxes with three compartments, separated by nylon mesh screens, were constructed. One outer compartment contained seedlings of papaya (Carica papaya L.) and other contained seedlings of bahiagrass (Paspalum notatum Flügge) or millet (Pennisetum glaucum L. R. Br.). The central compartment was inoculated with an AM fungus (Gigaspora margarita). In another experiment, the outer compartments were treated with 25% MeOH eluates of bahiagrass (BRE) and millet (MRE) root extracts. A control box, containning only papaya seedlings was also prepared....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hyphae; Root extracts; Papaya; Arbuscular mycorrhizal fungi.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000100015
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Architecture and relevance of several strongly adhered biofilms over a polyester imide (PEI) surface BJM
Soncini-Júnior,Giancarlo; Franchetti,Sandra Mara Martins; Marconato,José Carlos.
A microscopical study was undertaken to analyze the eventual fungi adhesion over a polyester imide surface in enameled copper wires. Scanning electron microscopy allowed to observe in these adhered biofilms, a high amount of pigments, hyphae and its enzymatic arsenal probably acting in the surface of the polymer. Due to the highly aromatic nature of this polyester and the residual phenol derivates still present in the reticulated polymer, an antifungal activity could be expected, but no significant changes were noted in fungal growing and in the adhesion process. Additionally, the wires showed completely failure in all insulation properties. The studies aimed to understand and evaluate the great fungi potential that could be explored in biodeterioration...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fungi; Biofilms; Hyphae; Pigments; Adhesion; Scanning electron microscopy; Polymeric surface; Polyester-imide; Enameled copper wires.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500036
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