Consulta: subjectFacets:"Ochratoxigenic fungi"
Registros recuperados: 2
Data/hora: 01/06/2024 03:29:31

An overview on molecular markers for detection of ochratoxigenic fungi in coffee neans
Provedor de dados: 52
Autores: Fungaro,Maria Helena Pelegrinelli; Sartori,Daniele.
Ochratoxin A (OTA) is one of the most abundant food-contaminating mycotoxins. Its occurrence in several agricultural commodities has been considered a worldwide problem. This toxin is mainly produced by Aspergillus species. OTA has nephrotoxic, immunosuppressive, and carcinogenic effects and consequently the contamination with this toxin represents a high risk for human and animal health. In the last 5 years, several investigators have applied molecular methods in order to develop PCR assays for identifying and quantifying OTA-producing fungi in coffee beans samples. The main objective is to allow the detection of microorganisms capable of producing OTA, preferentially prior to ochratoxin production and accumulation. In this contribution several of these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ochratoxigenic fungi; Molecular marker; PCR detection; Molecular identification.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700001

Identification of a splicing coactivator gene that affects the production of ochratoxin a in Aspergillus carbonarius
Provedor de dados: 52
Autores: Lunardi,Lígia Uno; Guembarovski,Roberta Losi; Hanai,Luiz Ricardo; Cristiano,Valderi; Vieira,Maria Lucia Carneiro; Sartori,Daniele; Fungaro,Maria Helena Pelegrinelli.
Ochratoxin A is a mycotoxin produced by some fungi species. Among them, Aspergillus carbonarius is considered a powerful producer. Genes involved in the ochratoxin A biosynthesis pathway have been identified in some producer species. However, there are few studies that purpose to identify these genes in A. carbonarius. The use of insertion mutants to identify genes associated with certain properties has been increased in the literature. In this work, the region of T-DNA integration was investigated in one A. carbonarius ochratoxin-defective mutant previously obtained by Agrobacterium tumefaciens-mediated transformation, in order to find an association between interrupted gene and the biosynthesis of ochratoxin A. The integration occurred in a gene that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ochratoxigenic fungi; Mycotoxin; Real time PCR; Splicing coactivator protein.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700018