Data/hora: 18/06/2024 09:33:04

Provedor de dados: | 58
País: | Brazil
Título: | The potential of compounds isolated from Xylaria spp. as antifungal agents against anthracnose
Autores: | Elias,Luciana M.; Fortkamp,Diana; Sartori,Sérgio B.; Ferreira,Marília C.; Gomes,Luiz H.; Azevedo,João L.; Montoya,Quimi V.; Rodrigues,André; Ferreira,Antonio G.; Lira,Simone P.
Data: | 2018-12-01
Ano: | 2018
Palavras-chave: | 2-Hexylidene-3-methylbutanedioic acid; Amazon; Anthracnose; Plant pathogen.
Resumo: | ABSTRACT Anthracnose is a crop disease usually caused by fungi in the genus Colletotrichum or Gloeosporium. These are considered one of the main pathogens, causing significant economic losses, such as in peppers and guarana. The current forms of control include the use of resistant cultivars, sanitary pruning and fungicides. However, even with the use of some methods of controlling these cultures, the crops are not free of anthracnose. Additionally, excessive application of fungicides increases the resistance of pathogens to agrochemicals and cause harm to human health and the environment. In order to find natural antifungal agents against guarana anthracnose, endophytic fungi were isolated from Amazon guarana. The compounds piliformic acid and cytochalasin D were isolated by chromatographic techniques from two Xylaria spp., guided by assays with Colletotrichum gloeosporioides. The isolated compounds were identified by spectrometric techniques, as NMR and mass spectrometry. This is the first report that piliformic acid and cytochalasin D have antifungal activity against C. gloeosporioides with MIC 2.92 and 2.46 µmol mL-1 respectively. Captan and difenoconazole were included as positive controls (MIC 16.63 and 0.02 µmol mL-1, respectively). Thus, Xylaria species presented a biotechnological potential and production of different active compounds which might be promising against anthracnose disease.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000400840
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1016/j.bjm.2018.03.003
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.49 n.4 2018
Fonte: | info:eu-repo/semantics/openAccess