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Registros recuperados: 9
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Antibiosis and dark-pigments secretion by the phytopathogenic and environmental fungal species after interaction in vitro with a Bacillus subtilis isolate BABT
Machado,Alexandre Paulo; Vivi,Viviane Karolina; Tavares,José Roberto; Gueiros Filho,Frederico José; Fischman,Olga.
In this work, different reactions in vitro between an environmental bacterial isolate and fungal species were related. The Gram-positive bacteria had terminal and subterminal endospores, presented metabolic characteristics of mesophilic and acidophilic growth, halotolerance, positive to nitrate reduction and enzyme production, as caseinase and catalase. The analysis of partial sequences containing 400 to 700 bases of the 16S ribosomal RNA gene showed identity with the genus Bacillus. However, its identity as B. subtilis was confirmed after analyses of the rpoB, gyrA, and 16S rRNA near-full-length sequences. Strong inhibitory activity of environmental microorganisms, such as Penicillium sp, Aspergillus flavus, A. niger, and phytopathogens, such as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacillus subtilis; Phytopathogenic fungi; Environmental fungi; Microbial interaction.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500001
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Antifungal activity of essential oil isolated from Ocimum gratissimum L. (eugenol chemotype) against phytopathogenic fungi BABT
Faria,Terezinha de Jesus; Ferreira,Rafael Sottero; Yassumoto,Lidiane; Souza,José Roberto Pinto de; Ishikawa,Noemia Kazue; Barbosa,Aneli de Melo.
An investigation of antifungal activity of the essential oil obtained by steam-distillation (1.1% w/w) of the aerial parts of Ocimum gratissimum and of an ethanolic extract from the steam-distillation residue was carried out using the agar diffusion method. The results revealed that the essential oil inhibited the growth of all fungi tested, including the phytopathogens, Botryosphaeria rhodina, Rhizoctonia sp. and two strains of Alternaria sp., while the extract from the residue was inactive. The essential oil was subjected to TLC bioautography used to detect fungitoxic constituents. The compound that showed antifungal activity was isolated and identified as eugenol. GC/MS analysis showed that eugenol was the main constituent of the essential oil studied....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ocimum gratissimum; Antifungal activity; Eugenol; Phytopathogenic fungi.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700002
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Atividade antifúngica de óleos essenciais de espécies de Hyptidinae (Lamiaceae) sobre Aspergilus niger e Rhizopus stolonifer. Repositório Alice
SANTOS, U. S. dos; OLIVEIRA, L. M. de; CARVALHO, J. R. de S.; COSTA, E. S. S.; BARROS, E. S. de; RIBEIRO JUNIOR, P. M.; SOUZA, A. V. de.
Este trabalho foi desenvolvido com o objetivo de avaliar a ação fungitóxica in vitro de óleos essenciais de Eplingiella fruticosa (Salzm. Ex Benth.) Harley & J.F.B.Pastore, Gymneia platanifolia (Mart. ex Benth.) Harley & J.F.B. Pastore e Medusantha martiusii (Benth.) Harley & J.F.B. Pastore sobre o crescimento de Aspergilus niger Van Tieghem e Rhizopus stolonifer (Ehrenb.: Fr.) Vuill, agentes causais de podridões em pós-colheita de frutas
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Aspergillus niger; Rhizopus stolonifer; Óleo essencial; Biodiversidade; Podridão pós-colheita; Doença; Planta medicinal; Fungos fitopatagênicos; Fruta; Post-harvest rottenness; Phytopathogenic fungi; Medicinal plants; Plant disease.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1086446
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Finding the missing link: resolving the Coryneliomycetidae within Eurotiomycetes Naturalis
Wood, A.R.; Damm, U.; Linde, E.J. van der; Groenewald, J.Z.; Cheewangkoon, R.; Crou, P.W..
Species belonging to the Coryneliaceae and parasitizing Podocarpaceae hosts were collected from different locations in South Africa and studied morphologically by light microscopy and molecularly by obtaining partial nrDNA (ITS-1/5.8S/ITS-2, 18S and 28S) gene sequences. The position of the Coryneliaceae within the Eurotiomycetidae was not confirmed and a new subclass, Coryneliomycetidae, was introduced. While Eurotiomycetidae usually form cleistothecia/gymnothecia with evanescent, unitunicate asci, and Chaetothyriomycetidae mostly perithecia with bitunicate/fissitunicate to evanescent asci, Coryneliomycetidae form pseudothecial mazaedial ascomata, initially with double-walled asci with the outer layer deliquescing, resulting in passive ascospore release....
Tipo: Article / Letter to the editor Palavras-chave: Corynelia; DNA phylogeny; Lagenulopsis; Phytopathogenic fungi; Sordariomycetes; Systematics; Tripospora.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/611852
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Growth rate inhibition of phytopathogenic fungi by characterized chitosans BJM
Oliveira Junior,Enio N.; Gueddari,Nour E. El; Moerschbacher,Bruno. M.; Franco,Telma T..
The inhibitory effects of fifteen chitosans with different degrees of polymerization (DP) and different degrees of acetylation (F A) on the growth rates (GR) of four phytopathogenic fungi (Alternaria alternata, Botrytis cinerea, Penicillium expansum, and Rhizopus stolonifer) were examined using a 96-well microtiter plate and a microplate reader. The minimum inhibitory concentrations (MICs) of the chitosans ranged from 100 µg × mL-1 to 1,000 µg × mL-1 depending on the fungus tested and the DP and F A of the chitosan. The antifungal activity of the chitosans increased with decreasing F A. Chitosans with low F A and high DP showed the highest inhibitory activity against all four fungi. P. expansum and B. cinerea were relatively less susceptible while A....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chitosan; Antifungal activity; Fungal morphology; Phytopathogenic fungi.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200046
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Secondary metabolites from Diplodia maydis and Sclerotium rolfsii with antibiotic activity BJM
Nogueira,Marisa Alves; Diaz,Gaspar; Andrioli,William; Falconi,Fabiana André; Stangarlin,José Renato.
Ethyl acetate extracts of the phytopathogenic fungi Diplodia maydis and Sclerotium rolfsii presented antibacterial activity against multidrug resistant bacteria isolated from patients in the University Hospital (HUOP-Unioeste, Brazil).
Tipo: Info:eu-repo/semantics/other Palavras-chave: Diplodia maydis; Sclerotium rolfsii; Multidrug resistance; Phytopathogenic fungi; Secondary metabolites.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000100002
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Strains of Lentinula edodes suppress growth of phytopathogenic fungi and inhibit Alagoas serotype of vesicular stomatitis virus BJM
Sasaki,Selma H.; Linhares,Rosa E.C.; Nozawa,Carlos M.; Montalván,Ricardo; Paccola-Meirelles,Luzia D..
Four Lentinula edodes strains (Le10, 46, K2, Assai) were assessed for their antagonistic effect on four filamentous fungus species of agricultural importance (Helminthosporium euphorbiae, Helminthosporium sp, Fusarium solani and Phomopsis sojae) and on Alagoas serotype of Vesicular Stomatitis Virus (VSA). The L. edodes strains studied had variable effects on the filamentous fungi and on VSA. The K2 and Le10 strains were antagonistic on the fungi assessed and the 46 and K2 strains were efficient on the Vesicular Stomatitis Virus. The results widened the list of beneficial effects of L. edodes on the control and prevention of animal pathogenic virus and filamentous fungi.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytopathogenic fungi; Shiitake; Inhibition; Vesicular Stomatitis Virus (Alagoas).
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000100012
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Taxonomic and phylogenetic re-evaluation of Microdochium, Monographella and Idriella Naturalis
Hernández-Restrepo, M.; Groenewald , J.Z.; Crous, P.W..
Based on morphology and DNA sequence data the taxonomic relationships of Microdochium, Monographella and Idriella were reassessed. Microdochium is morphologically and phylogenetically circumscribed, and the sexual genus Monographella treated as synonym on the basis that Microdochium has more species, is more commonly encountered, and more frequently used in literature. An epitype is designated for Microdochium phragmites, and several well-known species are redefined based on their morphology and DNA sequence data (LSU, ITS, BTUB and RPB2). Furthermore, the revision of Microdochium led to six new combinations (M. albescens, M. consociatum, M. fusariisporum, M. maydis, M. opuntiae and M. stevensonii) and six new species (M. citrinidiscum, M. colombiense, M....
Tipo: Article / Letter to the editor Palavras-chave: Cereals; Grasses; Phytopathogenic fungi; Sordariomycetes; Xylariales.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/607373
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The toxicity of jack bean [Canavalia ensiformis (L.) DC.] canatoxin to plant pathogenic fungi BJB
OLIVEIRA,A. E. A.; GOMES,V. M.; SALES,M. P.; FERNANDES,K. V. S.; CARLINI,C. R.; XAVIER-FILHO,J..
Protein fractions obtained from seeds of the jack bean (Canavalia ensiformis) as well as the amino acid canavanine, present in these seeds, were tested for their capacity to inhibit the growth of the phytopathogenic fungi Macrophomina phaseolina, Colletotrichum gloesporioides, Sclerotium rolfsii and Fusarium oxysporum. We found that most of the proteins examined and also canavanine did not have any effect on the growth of these fungi. On the other hand the toxic protein canatoxin was found to be effective, at a concentration of 2%, in the inhibition of the growth of M. phaseolina, C. gloesporioides and S. rolfsii.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canavalia ensiformis; Jack bean seeds; Canatoxin; Phytopathogenic fungi.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000100008
Registros recuperados: 9
Primeira ... 1 ... Última
 

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