نتایج جستجو برای: asprgillus flavus

تعداد نتایج: 3448  

Journal: :Molecular ecology 2012
Rodrigo A Olarte Bruce W Horn Joe W Dorner James T Monacell Rakhi Singh Eric A Stone Ignazio Carbone

Aspergillus flavus is the major producer of carcinogenic aflatoxins (AFs) in crops worldwide. Natural populations of A. flavus show tremendous variation in AF production, some of which can be attributed to environmental conditions, differential regulation of the AF biosynthetic pathway and deletions or loss-of-function mutations in the AF gene cluster. Understanding the evolutionary processes t...

2017
Mohamed Mannaa Ji Yeon Oh Ki Deok Kim

In our previous study, three bacterial strains, Bacillus megaterium KU143, Microbacterium testaceum KU313, and Pseudomonas protegens AS15, were selected as effective biocontrol agents against Aspergillus flavus on stored rice grains. In this study, we evaluated the inhibitory effects of the volatiles produced by the strains on A. flavus growth and aflatoxin production on stored rice grains. The...

Journal: :Toxins 2016
Houmiao Wang Yong Lei Liying Yan Liyun Wan Xiaoping Ren Silong Chen Xiaofeng Dai Wei Guo Huifang Jiang Boshou Liao

In the Aspergillus flavus (A. flavus)-peanut pathosystem, development and metabolism of the fungus directly influence aflatoxin contamination. To comprehensively understand the molecular mechanism of A. flavus interaction with peanut, RNA-seq was used for global transcriptome profiling of A. flavus during interaction with resistant and susceptible peanut genotypes. In total, 67.46 Gb of high-qu...

2017
Menza C. Nelson Lucy Kamau

Aflatoxin contaminates foods including peanuts. Aflatoxin is a carcinogenic toxin mainly produced bty Aspergillus flavus. Other Aspergillus species that rarely produce aflatoxins are A. nomius and A. niger. Aflatoxin is associated with liver failure, hepatocellular carcinoma (HCC) and death. Recent studies have shown that peanuts in Kenya are highly contaminated with aflatoxins but information ...

2017
Valdet Uka Geromy G. Moore Natalia Arroyo-Manzanares Dashnor Nebija Sarah De Saeger José Diana Di Mavungu

Cyclopiazonic acid (α-cyclopiazonic acid, α-CPA) is an indole-hydrindane-tetramic acid neurotoxin produced by various fungal species, including the notorious food and feed contaminant Aspergillus flavus. Despite its discovery in A. flavus cultures approximately 40 years ago, its contribution to the A. flavus mycotoxin burden is consistently minimized by our focus on the more potent carcinogenic...

2014
Xinliang Wu Bin Zhou Chao Yin Yong Guo Ying Lin Li Pan Bin Wang

Aspergillus flavus has received much attention owing to its severe impact on agriculture and fermented products induced by aflatoxin. Sclerotia morphogenesis is an important process related to A. flavus reproduction and aflatoxin biosynthesis. In order to obtain an extensive transcriptome profile of A. flavus and provide a comprehensive understanding of these physiological processes, the isolat...

2018
Gargi Rai Mohammad Ahmad Ansari Sajad Ahmad Dar Shyama Datt Neelima Gupta Sonal Sharma Shafiul Haque Vishnampettai Ganapathysubramanian Ramachandran Arpeeta Mazumdar Shivprakash Rudramurthy Arunaloke Chakrabarti Shukla Das

BACKGROUND Fungi, especially Aspergillus flavus, can cause chronic rhinosinusitis with nasal polyposis and modulate host innate immune components. The objective of this study was to examine the serum levels of T helper (Th) cell subset Th1, Th2, and Th17 cytokines and total IgE in patients having chronic rhinosinusitis with nasal polyposis and Aspergillus flavus infection. METHODS A case-cont...

Journal: :Medical mycology 2014
Luis A Ramírez-Camejo Ana P Torres-Ocampo José L Agosto-Rivera Paul Bayman

Aspergilloses are fungal diseases in humans and animals that is caused by members of the genus Aspergillus. Aspergillus flavus is an important opportunistic pathogen, second only to A. fumigatus as a cause of human aspergillosis. Differences in virulence among A. flavus isolates from clinical and other substrates and mating types are not well known. The fruit fly Drosophila melanogaster has bec...

2017
Shi Wang Yong-Soon Park Yang Yang Eli J. Borrego Tom Isakeit Xiquan Gao Michael V. Kolomiets

Ethylene (ET) emitted by plant tissues has been broadly reported to play important roles in plant development, response to environmental stresses and defense against certain pathogens. Recent evidence obtained from using in vitro fungal cultures exposed to ET suggested that exogenous ET may regulate the production of aflatoxin by Aspergilli. However, the function of endogenous, seed-derived ET ...

2018
Silin Ren Mingkun Yang Yuewei Yue Feng Ge Yu Li Xiaodong Guo Jia Zhang Feng Zhang Xinyi Nie Shihua Wang

Aspergillus flavus (A. flavus) is a ubiquitous saprophytic and pathogenic fungus that produces the aflatoxin carcinogen, and A. flavus can have tremendous economic and health impacts worldwide. Increasing evidence demonstrates that lysine succinylation plays an important regulatory role in metabolic processes in both bacterial and human cells. However, little is known about the extent and funct...

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