نتایج جستجو برای: a flavus

تعداد نتایج: 13433016  

Journal: :Journal of medical microbiology 2004
Yoshiyuki Okumura Kenji Ogawa Toshiaki Nikai

Elastolytic and elastase inhibitory activities were investigated for 13 strains of Aspergillus fumigatus, three strains of Aspergillus flavus and three strains of Aspergillus niger. Nine of the 13 strains of A. fumigatus and all strains of A. flavus demonstrated elastase activity (more than 1 unit ml(-1)). Six of the 13 strains of A. fumigatus and all strains of A. flavus expressed elastase inh...

2017
Rajtilak Majumdar Kanniah Rajasekaran Christine Sickler Matthew Lebar Bryan M. Musungu Ahmad M. Fakhoury Gary A. Payne Matt Geisler Carol Carter-Wientjes Qijian Wei Deepak Bhatnagar Jeffrey W. Cary

Aspergillus flavus is an opportunistic plant pathogen that colonizes and produces the toxic and carcinogenic secondary metabolites, aflatoxins, in oil-rich crops such as maize (Zea mays ssp. mays L.). Pathogenesis-related (PR) proteins serve as an important defense mechanism against invading pathogens by conferring systemic acquired resistance in plants. Among these, production of the PR maize ...

2017
Min-Jeong Kim Chang-Ki Shim Yong-Ki Kim Sung-Jun Hong Jong-Ho Park Eun-Jung Han Seok-Cheol Kim

Seed dehiscence of ginseng (Panax ginseng C. A. Mayer) is affected by moisture, temperature, storage conditions and microbes. Several microbes were isolated from completely dehisced seed coat of ginseng cultivars, Chunpoong and Younpoong at Gumsan, Korea. We investigated the potential of five Talaromyces flavus isolates from the dehiscence of ginseng seed in four traditional stratification faci...

2015

Aspergillus flavus (A. flavus) producing aflatoxin frequently contaminates crops such as soybeans. The growth of this mold on soybeans and other foodstuffs is affected by temperature and relative humidity (RH). The aim of this study was to measure the growth of A. flavus BIO 2237 and aflatoxin production at different temperatures and RH. Aspergillus flavus BIO 2237 was isolated from Indonesia o...

Journal: :mycologia iranica 2014
mahmoud houshyarfard hamid rouhani mahrokh falahati-rastegar saeed malekzadeh-shafaroudi esmat mehdikhani-moghaddam

abstract: fifteen non-aflatoxigenic strains of aspergillus flavus, represent a wide range of geographic regions of iran (six provinces include fars, ardebil, guilan, golestan, kerman and semnan) and vegetative compatibility groups (vcgs), were collected from corn (zea mays l.), peanut (arachis hypogaea l.) and pistachio (pistachia vera l.) soils and kernels, were screened for the presence of af...

The infection of Aspergillus flavus and its aflatoxin production pose a severe threat to humans, animals as well as plants life. Their inhibition using green techniques are considered as one of the important challenges. The present study outlines the antifungal activity of the ZnO nanoparticles (NPs) synthesized from lemongrass leaf extract and their effect on the mycelial growth of <e...

Journal: :Journal of food science 2011
A J De Lucca C H Carter-Wientjes S Boué D Bhatnagar

UNLABELLED Trans-2-hexenal, a volatile aldehyde, is produced by soybean (Glycine max [L.] Merr) and other plants via the lipoxygenase pathway. In vitro tests showed it significantly (P < 0.001) reduced Aspergillus flavus germinating conidial viability at 10 μM, with approximately 95% viability reduction observed at 20 μM. The viability of nongerminated conidia was not reduced. To test the effec...

2014
Parvin Dehghan Tien Bui Leona T Campbell Yu-Wen Lai Nai Tran-Dinh Farideh Zaini Dee A Carter

BACKGROUND Aspergillus flavus is intensively studied for its role in infecting crop plants and contaminating produce with aflatoxin, but its role as a human pathogen is less well understood. In parts of the Middle East and India, A. flavus surpasses A. fumigatus as a cause of invasive aspergillosis and is a significant cause of cutaneous, sinus, nasal and nail infections. METHODS A collection...

2013
Katinka Varga Előd Kondorosy

Two new Vertomannus species, Vertomannus flavus sp. n. (south Vietnam) and Vertomannus borneensis sp. n. (Borneo) are described. Vertomannus (Elongatomannus), subgen. n. (type species: Vertomannus flavus) is proposed.

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
ساناز چگینی گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج. کیوان بهبودی گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج. محمد جوان نیکخواه گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج. محسن فرزانه گروه کشاورزی، پژوهشکدة گیاهان و مواد اولیۀ دارویی دانشگاه شهید بهشتی، تهران.

in this investigation the effect of trichoderma isolates in inhibition of aspergillus flavus growth and reducing of aflatoxin b1 (afb1) was studied in culture media and pistachio nuts. among trichoderma isolates, t1, t3, t4 and t17 isolates showed significant impact on inhibiting of a. flavus r5growth. t3 and t4 isolates were the most effective isolates, which caused 84.40% and 77.88% reduction...

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