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Specian,Vânia; Sarragiotto,Maria Helena; Pamphile,João Alencar; Clemente,Edmar. |
Endophytic microorganisms, defined as fungi or bacteria that colonize the interior of plants without causing any immediate negative effects or damages, have reciprocal relationships with host plants. In some cases their presence is beneficial to the host due to the synthesis of bioactive compounds, among which several alcohols, esters, ketones and others that may react with other compounds and may be lethal to pathogenic microorganisms. Diaporthe helianthi (Phomopsis helianthi in its anamorphic phase) is available worldwide, especially in Europe, Asia and America. Isolated in Europe as an agent of the sunflower stem cancer, it has also been endophytically isolated from tropical and temperate plants. A D. helianthi strain isolated from Luehea divaricata has... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endophytic fungi; Diaporthe helianthi; Secondary metabolite; Phenolic compound; Tyrosol. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300045 |
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Orlandelli,Ravely Casarotti; Almeida,Tiago Tognolli de; Alberto,Raiani Nascimento; Polonio,Julio Cesar; Azevedo,João Lúcio; Pamphile,João Alencar. |
Endophytes are being considered for use in biological control, and the enzymes they secrete might facilitate their initial colonization of internal plant tissues and direct interactions with microbial pathogens. Microbial proteases are also biotechnologically important products employed in bioremediation processes, cosmetics, and the pharmaceutical, photographic and food industries. In the present study, we evaluated antagonism and competitive interactions between 98 fungal endophytes and Alternaria alternata, Colletotrichum sp., Phyllosticta citricarpa and Moniliophthora perniciosa. We also examined the proteolytic activities of endophytes grown in liquid medium and conducted cup plate assays. The results showed that certain strains in the assemblage of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antagonism; Competitive interaction; Dual culture; Cup plate; Protease. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000200359 |
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