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fusarium wheat or triticum

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https://www.readbyqxmd.com/read/28633506/role-of-glucagon-like-peptide-1and-gastric-inhibitory-peptide-in-anorexia-induction-following-oral-exposure-to-the-trichothecene-mycotoxin-deoxynivalenol-vomitoxin
#1
Hui Jia, Wen-Da Wu, Xi Lu, Jie Zhang, Cheng-Hua He, Hai-Bin Zhang
Deoxynivalenol (DON), which is a Type B trichothecene mycotoxin produced by Fusarium, frequently contaminates cereal staples, such as wheat, barley and corn. DON threatens animal and human health by suppressing food intake and impairing growth. While anorexia induction in mice exposed to DON has been linked to the elevation of the satiety hormones cholecystokinin (CCK) and peptide YY3-36(PYY3-36) in plasma, the effects of DON on the release of other satiety hormones, such as glucagon-like peptide-1 (GLP-1) and gastric inhibitory peptide (GIP), have not been established...
June 19, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28612272/geographic-distribution-of-phylogenetic-species-of-the-fusarium-graminearum-species-complex-and-their-8-ketotrichothecene-chemotypes-on-wheat-spikes-in-iran
#2
Mostafa Abedi-Tizaki, Doustmorad Zafari
Isolates of the Fusarium graminearum species complex (FGSC, n = 446) were collected from wheat spikes from northern and western regions of Iran with a history of Fusarium head blight (FHB) occurrences. The trichothecene mycotoxin genotypes/chemotypes, the associated phylogenetic species, and geographical distribution of these isolates were analyzed. Two phylogenetic species, Fusarium asiaticum and F. graminearum, were identified and were found to belong to sequence characterized amplified region (SCAR) groups V and I...
June 14, 2017: Mycotoxin Research
https://www.readbyqxmd.com/read/28604626/presence-of-enniatins-and-beauvericin-in-romanian-wheat-samples-from-raw-material-to-products-for-direct-human-consumption
#3
Oana Stanciu, Cristina Juan, Doina Miere, Felicia Loghin, Jordi Mañes
In this study, a total of 244 wheat and wheat-based products collected from Romania were analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS) in order to evaluate the presence of four enniatins (ENs; i.e., ENA, ENA1, ENB, and ENB1) and beauvericin (BEA). For the wheat samples, the influence of agricultural practices was assessed, whereas the results for the wheat-based products were used to calculate the estimated daily intake of emerging mycotoxins through wheat consumption for the Romanian population...
June 12, 2017: Toxins
https://www.readbyqxmd.com/read/28597241/biocontrol-of-the-toxigenic-plant-pathogen-fusarium-culmorum-by-soil-fauna-in-an-agroecosystem
#4
Friederike Meyer-Wolfarth, Stefan Schrader, Elisabeth Oldenburg, Joachim Weinert, Joachim Brunotte
In 2011 and 2013, a field experiment was conducted in a winter wheat field at Adenstedt (northern Germany) to investigate biocontrol and interaction effects of important members of the soil food web (Lumbricus terrestris, Annelida; Folsomia candida, Collembola and Aphelenchoides saprophilus, Nematoda) on the phytopathogenic fungus Fusarium culmorum in wheat straw. Therefore, soil fauna was introduced in mesocosms in defined numbers and combinations and exposed to either Fusarium-infected or non-infected wheat straw...
June 8, 2017: Mycotoxin Research
https://www.readbyqxmd.com/read/28587179/screening-of-deoxynivalenol-producing-strains-and-elucidation-of-possible-toxigenic-molecular-mechanism
#5
Xiangfeng Zheng, Xiaoli Zhang, Lina Zhao, Maurice T Apaliya, Qiya Yang, Wei Sun, Xiaoyun Zhang, Hongyin Zhang
In this study, seven strains of Fusarium graminearum were isolated from wheat, of which six were identified to produce deoxynivalenol and the production of deoxynivalenol was assessed. F. graminearum strain Fg1 was noted to produce 1.0 μg/g deoxynivalenol during the incubation period in the Czapek yeast broth, while none was detected in F. graminearum strain Fg2. Hence, the differences in proteomes and transcriptomes of Fg1 and Fg2 were compared to analyze the mechanism underlying deoxynivalenol production...
June 1, 2017: Toxins
https://www.readbyqxmd.com/read/28573418/rising-atmospheric-co2-concentration-may-imply-higher-risk-of-fusarium-mycotoxin-contamination-of-wheat-grains
#6
Szilvia Bencze, Katalin Puskás, Gyula Vida, Ildikó Karsai, Krisztina Balla, Judit Komáromi, Ottó Veisz
Increasing atmospheric CO2 concentration not only has a direct impact on plants but also affects plant-pathogen interactions. Due to economic and health-related problems, special concern was given thus in the present work to the effect of elevated CO2 (750 μmol mol(-1)) level on the Fusarium culmorum infection and mycotoxin contamination of wheat. Despite the fact that disease severity was found to be not or little affected by elevated CO2 in most varieties, as the spread of Fusarium increased only in one variety, spike grain number and/or grain weight decreased significantly at elevated CO2 in all the varieties, indicating that Fusarium infection generally had a more dramatic impact on the grain yield at elevated CO2 than at the ambient level...
June 1, 2017: Mycotoxin Research
https://www.readbyqxmd.com/read/28555151/molecular-cytogenetic-characterization-of-two-triticum-secale-thinopyrum-trigeneric-hybrids-exhibiting-superior-resistance-to-fusarium-head-blight-leaf-rust-and-stem-rust-race-ug99
#7
Yi Dai, Yamei Duan, Huiping Liu, Dawn Chi, Wenguang Cao, Allen Xue, Yong Gao, George Fedak, Jianmin Chen
Fusarium head blight (FHB), leaf rust, and stem rust are the most destructive fungal diseases in current world wheat production. The diploid wheatgrass, Thinopyrum elongatum (Host) Dewey (2n = 2x = 14, EE) is an excellent source of disease resistance genes. Two new Triticum-Secale-Thinopyrum trigeneric hybrids were derived from a cross between a hexaploid triticale (X Triticosecale Wittmack, 2n = 6x = 42, AABBRR) and a hexaploid Triticum trititrigia (2n = 6x = 42, AABBEE), were produced and analyzed using genomic in situ hybridization and molecular markers...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28525967/candidate-gene-based-association-mapping-in-fusarium-culmorum-for-field-quantitative-pathogenicity-and-mycotoxin-production-in-wheat
#8
Valheria Castiblanco, Jose J Marulanda, Tobias Würschum, Thomas Miedaner
BACKGROUND: Quantitative traits are common in nature, but quantitative pathogenicity has received only little attention in phytopathology. In this study, we used 100 Fusarium culmorum isolates collected from natural field environments to assess their variation for two quantitative traits, aggressiveness and deoxynivalenol (DON) production on wheat plants grown in four different field environments (location-year combinations). Seventeen Fusarium graminearum pathogenicity candidate genes were assessed for their effect on the aggressiveness and DON production of F...
May 19, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28510187/identification-and-trichothecene-genotypes-of-fusarium-graminearum-species-complex-from-wheat-in-taiwan
#9
Chih-Li Wang, Yi-Hong Cheng
BACKGROUND: Fusarium head blight (FHB) of wheat caused by Fusarium graminearum species complex (FGSC) is a devastating disease worldwide. The pathogens not only reduce the yield of wheat, but also impact the quality of wheat by contamination with trichothecene mycotoxins. A systematic investigation on the pathogens of FHB in Taiwan is lacking. Here, molecular and morphological approaches were used to identify species of the Taiwanese FGSC isolates and determine their trichothecene genotypes...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28472144/aspergillus-ficuum-phytase-activity-is-inhibited-by-cereal-grain-components
#10
Zelalem Eshetu Bekalu, Claus Krogh Madsen, Giuseppe Dionisio, Henrik Brinch-Pedersen
In the current study, we report for the first time that grain components of barley, rice, wheat and maize can inhibit the activity of Aspergillus ficuum phytase. The phytase inhibition is dose dependent and varies significantly between cereal species, between cultivars of barley and cultivars of wheat and between Fusarium graminearum infected and non-infected wheat grains. The highest endpoint level of phytase activity inhibition was 90%, observed with grain protein extracts (GPE) from F. graminearum infected wheat...
2017: PloS One
https://www.readbyqxmd.com/read/28466509/a-spatial-temporal-analysis-of-the-fusarium-graminearum-transcriptome-during-symptomless-and-symptomatic-wheat-infection
#11
Neil A Brown, Jess Evans, Andrew Mead, Kim E Hammond-Kosack
Fusarium head blight of wheat is one of the most serious and hazardous crop diseases worldwide. Here, a transcriptomic investigation of Fusarium graminearum reveals a new model for symptomless and symptomatic wheat infection. The predicted metabolic state and secretome of F. graminearum were distinct within symptomless and symptomatic wheat tissue. Transcripts for genes involved in the biosynthesis of the mycotoxin, deoxynivalenol, plus other characterised and putative secondary metabolite clusters increased in abundance in symptomless tissue...
May 2, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28463723/abiotic-conditions-leading-to-fum-gene-expression-and-fumonisin-accumulation-by-fusarium-proliferatum-strains-grown-on-a-wheat-based-substrate
#12
Eugenia Cendoya, Laetitia Pinson-Gadais, María C Farnochi, María L Ramirez, Sylvain Chéreau, Giselè Marcheguay, Christine Ducos, Christian Barreau, Florence Richard-Forget
Fusarium proliferatum produces fumonisins B not only on maize but also on diverse crops including wheat. Using a wheat-based medium, the effects of abiotic factors, temperature and water activity (aW), on growth, fumonisin biosynthesis, and expression of FUM genes were compared for three F. proliferatum strains isolated from durum wheat in Argentina. Although all isolates showed similar profiles of growth, the fumonisin production profiles were slightly different. Regarding FUM gene transcriptional control, both FUM8 and FUM19 expression showed similar behavior in all tested conditions...
April 25, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28463719/agricultural-factors-affecting-fusarium-communities-in-wheat-kernels
#13
Ida Karlsson, Hanna Friberg, Anna-Karin Kolseth, Christian Steinberg, Paula Persson
No abstract text is available yet for this article.
April 21, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28433743/the-antibiotic-polymyxin-b-exhibits-novel-antifungal-activity-against-fusarium-species
#14
Li-Hang Hsu, Hsuan-Fu Wang, Pei-Lun Sun, Fung-Rong Hu, Ying-Lien Chen
The genus Fusarium comprises many species, including Fusarium oxysporum, Fusarium solani, Fusarium graminearum and Fusarium verticillioides, and causes severe infections in plants and humans. In clinical settings, Fusarium is the third most frequent mould to cause invasive fungal infections after Aspergillus and the Mucorales. F. solani and F. oxysporum are the most prevalent Fusarium spp. causing clinical disease. However, few effective antifungal drugs are available to treat human and plant Fusarium infections...
June 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28424497/the-glycogen-synthase-kinase-mogsk1-regulated-by-mps1-map-kinase-is-required-for-fungal-development-and-pathogenicity-in-magnaporthe-oryzae
#15
Tengsheng Zhou, Yasin F Dagdas, Xiaohan Zhu, Shiqin Zheng, Liqiong Chen, Zachary Cartwright, Nicholas J Talbot, Zonghua Wang
Magnaporthe oryzae, the causal agent of blast disease, is one of the most destructive plant pathogens, causing significant yield losses on staple crops such as rice and wheat. The fungus infects plants with a specialized cell called an appressorium, whose development is tightly regulated by MAPK signaling pathways following the activation of upstream sensors in response to environmental stimuli. Here, we show the expression of the Glycogen synthase kinase 3 (GSK3) MoGSK1 in M. oryzae is regulated by Mps1 MAP kinase, particularly under the stressed conditions...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28414109/synthesis-and-characterization-of-chitosan-nanoparticles-and-their-effect-on-fusarium-head-blight-and-oxidative-activity-in-wheat
#16
A Kheiri, S A Moosawi Jorf, A Malihipour, H Saremi, M Nikkhah
The main aim of present study was to prepare chitosan (CS) and chitosan nanoparticles (CS/NPs) to evaluate their antifungal and oxidative activity. CS/NPs were prepared based on the ionic gelation of CS with tripolyphosphate (TPP) anions by using centrifugation and pH change. The obtained nanoparticles (NPs) were characterized by size and zeta potential analysis. The antifungal activity of the CS and CS/NPs were evaluated on the Fusarium graminearum, which causes Fusarium head blight (FHB) on wheat by the method of spraying on the Potato dextrose agar (PDA) medium...
April 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28411402/transcriptomics-of-cereal-fusarium-graminearum-interactions-what-we-have-learned-so-far
#17
REVIEW
Kemal Kazan, Donald M Gardiner
The ascomycete fungal pathogen Fusarium graminearum causes the globally important Fusarium head blight (FHB) disease on cereal hosts, such as wheat and barley. In addition to reducing grain yield, infection by this pathogen causes major quality losses. In particular, the contamination of food and feed with the F. graminearum trichothecene toxin deoxynivalenol (DON) can have many adverse short- and long-term effects on human and animal health. During the last decade, the interaction between F. graminearum and both cereal and model hosts has been extensively studied through transcriptomic analyses...
April 15, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28407973/occurrence-of-deoxynivalenol-and-deoxynivalenol-3-glucoside-in-durum-wheat-from-argentina
#18
Sofía A Palacios, Jessica G Erazo, Biancamaria Ciasca, Veronica M T Lattanzio, María M Reynoso, María C Farnochi, Adriana M Torres
The occurrence of deoxynivalenol, 3- and 15-deoxynivalenol and deoxynivalenol-3-glucoside in 84 durum wheat samples, from the Argentinean main growing area, was investigated during 2012/13 and 2013/14 using LC-MS/MS. Deoxynivalenol was found in all samples at concentrations varying between <LOQ (50μg/kg) and 9480μg/kg. Deoxynivalenol-3-glucoside was detected in 94% of the samples at concentrations ranging from <LOQ (50μg/kg) to 850μg/kg. Moreover, the acetylated derivatives were also detected but at lower frequency (49%)...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28407119/a-barley-udp-glucosyltransferase-inactivates-nivalenol-and-provides-fusarium-head-blight-resistance-in-transgenic-wheat
#19
Xin Li, Herbert Michlmayr, Wolfgang Schweiger, Alexandra Malachova, Sanghyun Shin, Yadong Huang, Yanhong Dong, Gerlinde Wiesenberger, Susan McCormick, Marc Lemmens, Philipp Fruhmann, Christian Hametner, Franz Berthiller, Gerhard Adam, Gary J Muehlbauer
Fusarium Head Blight is a disease of cereal crops that causes severe yield losses and mycotoxin contamination of grain. The main causal pathogen, Fusarium graminearum, produces the trichothecene toxins deoxynivalenol or nivalenol as virulence factors. Nivalenol-producing isolates are most prevalent in Asia but co-exist with deoxynivalenol producers in lower frequency in North America and Europe. Previous studies identified a barley UDP-glucosyltransferase, HvUGT13248, that efficiently detoxifies deoxynivalenol, and when expressed in transgenic wheat results in high levels of type II resistance against deoxynivalenol-producing F...
April 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28392426/population-genetic-structure-and-mycotoxin-potential-of-the-wheat-crown-rot-and-head-blight-pathogen-fusarium-culmorum-in-algeria
#20
Imane Laraba, Houda Boureghda, Nora Abdallah, Oussama Bouaicha, Friday Obanor, Antonio Moretti, David M Geiser, Hye-Seon Kim, Susan P McCormick, Robert H Proctor, Amy C Kelly, Todd J Ward, Kerry O'Donnell
Surveys for crown rot (FCR) and head blight (FHB) of Algerian wheat conducted during 2014 and 2015 revealed that Fusarium culmorum strains producing 3-acetyl-deoxynivalenol (3ADON) or nivalenol (NIV) were the causal agents of these important diseases. Morphological identification of the isolates (n FCR=110, n FHB=30) was confirmed by sequencing a portion of TEF1. To assess mating type idiomorph, trichothecene chemotype potential and global population structure, the Algerian strains were compared with preliminary sample of F...
June 2017: Fungal Genetics and Biology: FG & B
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