Differentiation between Aspergillus flavus and Aspergillus parasiticus isolates originated from wheat
نویسندگان
چکیده
منابع مشابه
Characterization of aflatoxigenic Aspergillus flavus and A. parasiticus strain isolates from animal feedstuffs in northeastern Iran
Aflatoxins are secondary toxic metabolites produced by some Aspergillus spp. particularly, Aspergillus flavus and A. parasiticus that contaminate food and feed. The objective of this study was to evaluate the contamination of feedstuffs with Aspergillus spp. and detect genes involved in the aflatoxin biosynthesis pathway of A. flavus and A. parasiticus isolates. A total of 110 cow feed samples ...
متن کاملPossible implications of reciprocity between ethylene and aflatoxin biogenesis in Aspergillus flavus and Aspergillus parasiticus.
Aspergillus flavus and Aspergillus parasiticus produced ethylene during early growth. However, the onset of toxin biosynthesis was marked by the absence of ethylene evolution. 2-Chloroethyl phosphonic acid, an ethylene-generating compound, inhibited aflatoxin biosynthesis in vivo. The reciprocal relationship between the production of aflatoxin and ethylene by the organism may indicate the invol...
متن کاملAflatoxigenic isolates of Aspergillus flavus from pecans.
Of 120 isolates of the Aspergillus flavus group from pecans used in bakery products, 85 were shown to produce aflatoxin on yeast extract sucrose medium. Extracts from moldy sections of raw pecans obtained commercially at the retail level showed aflatoxin-like spots on thin-layer chromatography. Cooked (autoclaved) pecans inoculated with toxigenic isolates of A. flavus were also good substrates ...
متن کاملCharacterization of aflatoxigenic Aspergillus flavus and A. parasiticus strain isolates from animal feedstuffs in northeastern Iran.
Aflatoxins are secondary toxic metabolites produced by some Aspergillus spp. particularly, Aspergillus flavus and A. parasiticus that contaminate food and feed. The objective of this study was to evaluate the contamination of feedstuffs with Aspergillus spp. and detect genes involved in the aflatoxin biosynthesis pathway of A. flavus and A. parasiticus isolates. A total of 110 cow feed samples ...
متن کاملمقایسهی رشد قارچ Aspergillus parasiticus و Aspergillus flavus در شرایط مختلف دما، رطوبت و pH
چکیده قارچ‌های Aspergillus parasiticusو Aspergillus flavusاز مهمترین عوامل آلودهکنندهی موادغذایی و دارای قابلیت تولید توکسینهای سرطانزا میباشند. آگاهی از شرایط بهینهی رشد، به کنترل و ممانعت از آلودگی و سمزایی این قارچ‌ها کمک می‌کند. این آزمایش به منظور بررسی تأثیر دما، pH و میزان رطوبتبذر بر رشد این دو گونه قارچ اجرا شد. تاثیر رطوبت بذر (در سطوح 15، 18، 21، 24، 27 و 30 درصد) و دما (...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ABI Genetika
سال: 2018
ISSN: 0534-0012,1820-6069
DOI: 10.2298/gensr1801143n