title: Culturable fungal diversity of shrimp Litopenaeus vannamei boone from breeding farms in brazil.
abstract: Litopenaeus vannamei, which is the most common shrimp species cultivated in the northeast of Brazil, is very susceptible to microbial diseases, and this consequently affects productivity. There are reports of bacteria, viruses and protozoa in these shrimp, but not fungi. This study aims to isolate and identify fungi present in shrimp Litopenaeus vannamei, and in their nursery waters, at two breeding farms in Brazil. The pathogenic potential of the isolates was assessed through the qualitative detection of proteases and aflatoxin B production. The 146 isolated fungi comprised 46 species. Aspergillus, Penicillium and Furarium were the three most relevant genera and Aspergillus flavus was the predominant species with a total of 33 isolates. Most of the isolated species are known as potentially pathogenic to humans and other animals. Eighteen isolates of A. flavus and two of A. parasiticus were able to produce aflatoxin B and 33 out of the 46 species produced protease, indicating that these fungi may also become pathogenic to shrimp and their consumers.
authors.affiliation: Departamento de Micologia, Universidade Federal de Pernambuco , Recife, PE , Brasil.
authors.forename: Lidiane Roberta
authors.initials: LR
authors.lastname: Cruz da Silva
authors.forename: Odacy
authors.initials: O
authors.lastname: Camilo de Souza
authors.forename: Maria José
authors.initials: MJ
authors.lastname: Dos Santos Fernandes
authors.forename: Débora Maria
authors.initials: DM
authors.lastname: Massa Lima
authors.forename: Rosalie Reed
authors.initials: RR
authors.lastname: Rodrigues Coelho
authors.forename: Cristina Maria
authors.initials: CM
authors.lastname: Souza-Motta
keywords: aflatoxin B; fungi; protease; shrimp; water
references.citation: Mycopathologia. 1989 Nov;108(2):145-7
references.pmid: 2594048
references.citation: J Food Prot. 2003 May;66(5):882-5
references.pmid: 12747701
references.citation: Mycopathologia. 1984 Mar 15;85(1-2):65-8
references.pmid: 6203038
references.citation: Rev Iberoam Micol. 2005 Dec;22(4):194-202
references.pmid: 16499411
references.citation: Mycologia. 1974 Mar-Apr;66(2):365-9
references.pmid: 4208153
references.citation: Eukaryot Cell. 2004 Apr;3(2):527-35
references.pmid: 15075281
references.citation: Mycopathologia. 2002;156(3):193-205
references.pmid: 12749584
references.citation: Curr Allergy Asthma Rep. 2007 Sep;7(5):351-6
references.pmid: 17697643
references.citation: Appl Microbiol Biotechnol. 1997 Jan;47(1):1-11
references.pmid: 9035405
references.citation: J Fish Dis. 2004 Sep;27(9):507-15
references.pmid: 15357709
references.citation: Clin Microbiol Rev. 2000 Jan;13(1):122-43, table of contents
references.pmid: 10627494
references.citation: Crit Rev Toxicol. 1988;19(2):113-45
references.pmid: 3069332