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Role of killer factors in the inhibitory activity of bio-control yeasts against Penicillium expansum and Aspergillus ochraceus BABT
Portes,Ciro da Silva; Oliveira,Andriélen Virke de; Simer,Patrícia; Lunkes,Alessandra Machado; Coelho,Alexandre Rodrigo.
This work evaluated the antagonism of killer positive yeast strains (isolated from 11 samples of different frozen fruit pulps) against the strains of Penicillium expansum and Aspergillus ochraceus. Of the total 41 killer yeasts tested in YM agar, 19 showed antibiosis against P. expansum and A. ochraceus, with inhibition zone ranging from 10 to 18 mm and 10 to 19 mm, respectively. In the following step, the extracellular activity of Kluyveromyces sp. FP4(13) was tested performing the assay in YM broth. The antifungal activity of Kluyveromyces sp. FP4(13) cell-free culture supernatant (25ºC/96 h) was more effective against the conidia germination, showing inhibition rates of 93.33 and 86.44% for P. expansum and A. ochraceus, respectively. The micelial growth...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Moulds; Killer yeasts; Biocontrol; Antibiosis.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000400012
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The genera of Hyphomycetes – 2011 update Naturalis
Seifert, K.A.; Gams, W..
This supplement to the taxonomic monograph The Genera of Hyphomycetes summarises information on 23 accepted new genera and c. 160 species described in 2011. These include three dematiaceous genera (Funbolia, Noosia, Pyrigemmula, all related to Dothideomycetes), a bulbil-producing genus, Spiroplana (Pleosporales), and two endophytic genera, the sterile Periglandula (Clavicipitaceae), and the hyaline, sympodial Micronematobotrys (Pyronemataceae). Slow-growing, morphologically-reduced, darkly pigmented fungi continue to be the source of new taxa, including the new genus Atramixtia (Dothioraceae). Eight new genera of darkly pigmented chlamydosporelike anamorphs were described from marine or subtidal environments (Glomerulispora, Halozoön, Hiogispora,...
Tipo: Article / Letter to the editor Palavras-chave: Anamorphic fungi; DNA barcoding; Moulds; New genera; New species.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/532291
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