نتایج جستجو برای: fumonisin

تعداد نتایج: 1131  

Journal: :Applied and environmental microbiology 2003
Joseph E Flaherty Anna Maria Pirttilä Burton H Bluhm Charles P Woloshuk

Fumonisins are a group of mycotoxins that contaminate maize and cause leukoencephalomalacia in equine, pulmonary edema in swine, and promote cancer in mice. Fumonisin biosynthesis in Fusarium verticillioides is repressed by nitrogen and alkaline pH. We cloned a PACC-like gene (PAC1) from F. verticillioides. PACC genes encode the major transcriptional regulators of several pH-responsive pathways...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2000
G W Smith P D Constable R M Eppley M E Tumbleson L A Gumprecht W M Haschek-Hock

Fumonisins are mycotoxins produced by Fusarium verticillioides, which induce acute pulmonary edema in swine. We previously reported that ingestion of fumonisin-containing culture material decreases cardiovascular function in swine (1996,a,b; Fundam. Appl. Toxicol. 31, 169-172; 33, 140-148; 1999, Am. J Vet. Res. 60, 1291-1300). The main purpose of this study was to confirm that fumonisin B(1) wa...

2009
Abu Bakar

Problem statements: Fumonisin was a mycotoxin produced mainly by fungi belonging to the genus Fusarium in various foods and feeds. They occurred worldwide and were found predominantly in corn and in corn-based animal feeds and also can be found in other crops. Contamination of food and feed with fumonisins has been implicated in and associated with a number of diseases in both livestock as well...

Journal: :Environmental Health Perspectives 2001
JR Barrett

Mold-produced toxins have tainted food crops probably since the beginnings of agriculture. These mycotoxins can occur when certain molds infect food crops before or after harvest. Both humans and animals are vulnerable to poisoning through consumption of contaminated foods, with acute or chronic illness—including cancer—a potential result. A study by Paul K. Chelule of the University of Natal i...

Journal: :Applied and environmental microbiology 1994
T Yoshizawa A Yamashita Y Luo

Forty-seven corn samples were collected in 1989 from Linxian and Shangqiu Counties in Henan Province, the high- and low-risk areas, respectively, for human esophageal cancer in the People's Republic of China. The samples were analyzed for fumonisin (fumonisin B1 [FB1] and FB2) contamination. Of the fumonisin-positive samples, the mean levels in Linxian corn were found to be 872 ng/g for FB1 and...

2010
Elisabete Yurie Sataque Ono Silvia Helena Sofia Tatiana de Ávila Miguel Yoshitsugu Sugiura Elisa Yoko Hirooka

In this study a total of 16 Fusarium verticillioides strains isolated from corn feed samples were characterized by fumonisin (FB) production and random amplified polymorphic DNA (RAPD). All the strains produced FB1 and FB2 with levels ranging from 2.41 to 3996.36 μg/g, and from 1.18 to 1209.91 μg/g, respectively. From the 16 F. verticillioides strains, four were identified as low (3.59 to 1289....

Afshin Zarghi, H Yazdanpanah P Eskandari Gheidari SK Mirkarimi

Fumonisin B1 (FB1) is the most abundant of the fumonisin mycotoxins, mainly produced in corn by fungi of the genus Fusarium. FB1 has been shown to be hepatocarcinogenic and nephrocarcinogenic in animals. Contamination of corn with FB1 was assayed in samples collected from Mazandaran Province, situated on the Caspian littoral of Iran, in September 2000. In this survey, 38 corn samples were analy...

Journal: :iranian journal of public health 0
issa gholamour azizi dept. of mycology sciences, babol branch, islamic azad university, babol, iran. samaneh rouhi

fumonisins and aflatoxins are mycotoxins that are produced by fusarium and aspergillus genus respectively. due to the toxicity of aflatoxin and fumonisin and its effects on human and animals' health, the purpose of this study was analysis of total fumonisin and total aflatoxin contamination in biscuit and cookie samples in babol city, northern iran.thirty biscuit (n=15) and cookie (n=15) sample...

Journal: :Journal of agricultural and food chemistry 2000
A E Desjardins R D Plattner

Fumonisins are polyketide mycotoxins produced by Fusarium verticillioides (synonym F. moniliforme), a major pathogen of maize (Zea mays) worldwide. Most field strains produce high levels of fumonisin B(1) (FB(1)) and low levels of the less-oxygenated homologues FB(2) and FB(3), but fumonisin B(1)-nonproducing field strains have been obtained by natural variation. To test the role of various fum...

2016
Martha M. Vaughan Alisa Huffaker Eric A. Schmelz Nicole J. Dafoe Shawn A. Christensen Heather J. McAuslane Hans T. Alborn Leon Hartwell Allen Peter E. A. Teal

Changes in climate due to rising atmospheric carbon dioxide concentration ([CO2]) are predicted to intensify episodes of drought, but our understanding of how these combined conditions will influence crop-pathogen interactions is limited. We recently demonstrated that elevated [CO2] alone enhances maize susceptibility to the mycotoxigenic pathogen, Fusarium verticillioides (Fv) but fumonisin le...

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