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https://www.readbyqxmd.com/read/29230232/chemosensitization-of-fusarium-graminearum-to-chemical-fungicides-using-cyclic-lipopeptides-produced-by-bacillus-amyloliquefaciens-strain-jck-12
#1
Kihyun Kim, Yoonji Lee, Areum Ha, Ji-In Kim, Ae Ran Park, Nan Hee Yu, Hokyoung Son, Gyung Ja Choi, Hae Woong Park, Chul Won Lee, Theresa Lee, Yin-Won Lee, Jin-Cheol Kim
Fusarium head blight (FHB) caused by infection with Fusarium graminearum leads to enormous losses to crop growers, and may contaminate grains with a number of Fusarium mycotoxins that pose serious risks to human and animal health. Antagonistic bacteria that are used to prevent FHB offer attractive alternatives or supplements to synthetic fungicides for controlling FHB without the negative effects of chemical management. Out of 500 bacterial strains isolated from soil, Bacillus amyloliquefaciens JCK-12 showed strong antifungal activity and was considered a potential source for control strategies to reduce FHB...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29226147/antifungal-activity-of-aqueous-extracts-of-some-dominant-algerian-medicinal-plants
#2
Nasrine Salhi, Sultan Ayesh Mohammed Saghir, Valeria Terzi, Iman Brahmi, Naima Ghedairi, Samia Bissati
Aim: This study investigated the antifungal properties of aqueous extracts obtained from indigenous plants that grow spontaneously in the Northern Sahara of Algeria. The activities of these plants in controlling two fungal species that belong to Fusarium genus were evaluated in an in vitro assay. Materials and Methods: Fresh aerial parts of four plant species (Artemisia herba alba, Cotula cinerea, Asphodelus tenuifolius, and Euphorbia guyoniana) were collected for the preparation of aqueous extracts...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29222453/transcriptome-analysis-of-brachypodium-during-fungal-pathogen-infection-reveals-both-shared-and-distinct-defense-responses-with-wheat
#3
Jonathan J Powell, Jason Carere, Gaurav Sablok, Timothy L Fitzgerald, Jiri Stiller, Michelle L Colgrave, Donald M Gardiner, John M Manners, John P Vogel, Robert J Henry, Kemal Kazan
Fusarium crown rot (FCR) of wheat and barley, predominantly caused by the fungal pathogen Fusarium pseudograminearum, is a disease of economic significance. The quantitative nature of FCR resistance within cultivated wheat germplasm has significantly limited breeding efforts to enhanced FCR resistance in wheat. In this study, we characterized the molecular responses of Brachypodium distachyon (Brachypodium hereafter) to F. pseudograminearum infection using RNA-seq to determine whether Brachypodium can be exploited as a model system towards better understanding of F...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29220474/database-of-resistance-related-metabolites-in-wheat-fusarium-head-blight-disease-mwfd
#4
Anuradha Surendra, Miroslava Cuperlovic-Culf
https://bioinfo.nrc.ca/mwfd/index.php.
January 1, 2017: Database: the Journal of Biological Databases and Curation
https://www.readbyqxmd.com/read/29216556/influence-of-water-activity-and-temperature-on-growth-and-fumonisin-production-by-fusarium-proliferatum-strains-on-irradiated-wheat-grains
#5
Eugenia Cendoya, María Del Pilar Monge, Stella Maris Chiacchiera, María Cecilia Farnochi, María Laura Ramirez
Wheat is the most important cereal consumed by the Argentine population. In previous studies performed in durum and common wheat grains in this country it has been observed fumonisin contamination as well as high incidence of Fusarium proliferatum. Fumonisins are toxic fungal metabolites, and consumption of fumonisin-contaminated maize has been epidemiologically associated with oesophageal cancer and neural tube defects in some human populations. Using irradiated wheat-grains, the effects of abiotic factors, temperature (15, 25, and 30°C) and water activity (aW; 0...
December 4, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29209889/fusarium-head-blight-incidence-and-mycotoxin-accumulation-in-three-durum-wheat-cultivars-in-relation-to-sowing-date-and-density
#6
Anna Gorczyca, Andrzej Oleksy, Dorota Gala-Czekaj, Monika Urbaniak, Magdalena Laskowska, Agnieszka Waśkiewicz, Łukasz Stępień
Durum wheat (Triticum turgidum var. durum) is an important crop in Europe, particularly in the Mediterranean countries. Fusarium head blight (FHB) is considered as one of the most damaging diseases, resulting in yield and quality reduction as well as contamination of grain with mycotoxins. Three winter durum wheat cultivars originating from Austria, Slovakia, and Poland were analyzed during 2012-2014 seasons for FHB incidence and Fusarium mycotoxin accumulation in harvested grain. Moreover, the effects of sowing density and delayed sowing date were evaluated in the climatic conditions of Southern Poland...
December 5, 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/29198016/advantages-and-limitations-of-multiple-trait-genomic-prediction-for-fusarium-head-blight-severity-in-hybrid-wheat-triticum-aestivum-l
#7
Albert W Schulthess, Yusheng Zhao, C Friedrich H Longin, Jochen C Reif
Predictabilities for wheat hybrids less related to the estimation set were improved by shifting from single- to multiple-trait genomic prediction of Fusarium head blight severity. Breeding for improved Fusarium head blight resistance (FHBr) of wheat is a very laborious and expensive task. FHBr complexity is mainly due to its highly polygenic nature and because FHB severity (FHBs) is greatly influenced by the environment. Associated traits plant height and heading date may provide additional information related to FHBr, but this is ignored in single-trait genomic prediction (STGP)...
December 2, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29173636/development-of-a-pcr-rflp-method-based-on-the-transcription-elongation-factor-1-%C3%AE-gene-to-differentiate-fusarium-graminearum-from-other-species-within-the-fusarium-graminearum-species-complex
#8
Gabriela Garmendia, Mariana Umpierrez-Failache, Todd J Ward, Silvana Vero
Fusarium head blight (FHB) is a destructive disease of cereals crops worldwide and a major food safety concern due to grain contamination with trichothecenes and other mycotoxins. Fusarium graminearum, a member of the Fusarium graminearum species complex (FGSC) is the dominant FHB pathogen in many parts of the world. However, a number of other Fusarium species, including other members of the FGSC, may also be present for example in Argentina, New Zealand, Ethiopia, Nepal, Unites States in cereals such as wheat and barley...
April 2018: Food Microbiology
https://www.readbyqxmd.com/read/29173624/causal-agents-of-fusarium-head-blight-of-durum-wheat-triticum%C3%A2-durum-desf-in-central-italy-and-their-in%C3%A2-vitro-biosynthesis-of-secondary-metabolites
#9
G Beccari, V Colasante, F Tini, M T Senatore, A Prodi, M Sulyok, L Covarelli
Durum wheat samples harvested in central Italy (Umbria) were analyzed to: evaluate the occurrence of the fungal community in the grains, molecularly identify the Fusarium spp. which are part of the Fusarium head blight (FHB) complex and characterize the in vitro secondary metabolite profiles of a subset of Fusarium strains. The Fusarium genus was one of the main components of the durum wheat fungal community. The FHB complex was composed of eight species: Fusarium avenaceum (61%), F. graminearum (22%), F...
April 2018: Food Microbiology
https://www.readbyqxmd.com/read/29160900/fusarium-graminearum-pathogen-or-endophyte-of-north-american-grasses
#10
Lotus A Lofgren, Nicholas R LeBlanc, Amanda K Certano, Jonny Nachtigall, Kathryn M LaBine, Jakob Riddle, Karen Broz, Yanhong Dong, Bianca Bethan, Christopher W Kafer, H Corby Kistler
Mycotoxin-producing Fusarium graminearum and related species cause Fusarium head blight on cultivated grasses, such as wheat and barley. However, these Fusarium species may have had a longer evolutionary history with North American grasses than with cultivated crops and may interact with the ancestral hosts in ways which are biochemically distinct. We assayed 25 species of asymptomatic native grasses for the presence of Fusarium species and confirmed infected grasses as hosts using re-inoculation tests. We examined seed from native grasses for the presence of mycotoxin-producing Fusarium species and evaluated the ability of these fungi to produce mycotoxins in both native grass and wheat hosts using biochemical analysis...
November 21, 2017: New Phytologist
https://www.readbyqxmd.com/read/29160856/correction-s-vogelgsang-et-al-fusarium-mycotoxins-in-swiss-wheat-a-survey-of-growers-samples-between-2007-and-2014-shows-strong-year-and-minor-geographic-effects-toxins-2017-9-246
#11
Susanne Vogelgsang, Tomke Musa, Irene Bänziger, Andreas Kägi, Thomas D Bucheli, Felix E Wettstein, Matias Pasquali, Hans-Rudolf Forrer
No abstract text is available yet for this article.
November 21, 2017: Toxins
https://www.readbyqxmd.com/read/29156605/performance-indices-in-wheat-chlorophyll-a-fluorescence-and-protein-quality-influenced-by-fhb
#12
Valentina Spanic, Marija Viljevac Vuletic, Georg Drezner, Zvonimir Zdunic, Daniela Horvat
Very little is known about the physiological interactions between wheat quality and Fusarium head blight (FHB), which substantially reduces wheat grain yield and quality worldwide. In order to investigate stress-induced changes in flag leaves from plants artificially inoculated with Fusarium, we screened for chlorophyll a fluorescence transient at 1, 2, 4, 7 and 14 days after Fusarium inoculation. Our results indicate that the maximum quantum yield of photochemistry (Fv/Fm) and the performance index (PI) were not affected by FHB, but there were significant differences in those two traits between different varieties and measurement times...
November 20, 2017: Pathogens
https://www.readbyqxmd.com/read/29146152/improved-antifungal-activity-of-barley-derived-chitinase-i-gene-that-overexpress-a-32kda-recombinant-chitinase-in-escherichia-coli-host
#13
Nida Toufiq, Bushra Tabassum, Muhammad Umar Bhatti, Anwar Khan, Muhammad Tariq, Naila Shahid, Idrees Ahmad Nasir, Tayyab Husnain
Agricultural crops suffer many diseases, including fungal and bacterial infections, causing significant yield losses. The identification and characterisation of pathogenesis-related protein genes, such as chitinases, can lead to reduction in pathogen growth, thereby increasing tolerance against fungal pathogens. In the present study, the chitinase I gene was isolated from the genomic DNA of Barley (Hordeum vulgare L.) cultivar, Haider-93. The isolated DNA was used as template for the amplification of the ∼935bp full-length chitinase I gene...
October 31, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29145415/plant-organ-cultures-as-masked-mycotoxin-biofactories-deciphering-the-fate-of-zearalenone-in-micropropagated-durum-wheat-roots-and-leaves
#14
Laura Righetti, Enrico Rolli, Gianni Galaverna, Michele Suman, Renato Bruni, Chiara Dall'Asta
"Masked mycotoxins" senso strictu are conjugates of mycotoxins resulting from metabolic pathways activated by the interplay between pathogenic fungi and infected plants. Zearalenone, an estrogenic mycotoxin produced by Fusarium spp, was the first masked mycotoxin ever described in the literature, but its biotransformation has been studied to a lesser extent if compared to other compounds such as deoxynivalenol. We presented herein the first application of organ and tissue culture techniques to study the metabolic fate of zearalenone in durum wheat, using an untargeted HR-LCMS approach...
2017: PloS One
https://www.readbyqxmd.com/read/29140092/determinants-and-expansion-of-specificity-in-a-trichothecene-udp-glucosyltransferase-from-oryza-sativa
#15
Karl M Wetterhorn, Kaitlyn Gabardi, Herbert Michlmayr, Alexandra Malachova, Mark Busman, Susan Patricia McCormick, Franz Berthiller, Gerhard Adam, Ivan Rayment
Family 1 UDP-glycosyltransferases in plants (UGTs) primarily form glucose conjugates of small molecules and, besides other functions, play a role in detoxification of xenobiotics. Indeed, overexpression of a barley UGT in wheat has been shown to control Fusarium head blight, where this is a plant disease of global significance that leads to reduced crop yields and contamination with trichothecene mycotoxins such as deoxynivalenol (DON), T-2 toxin and many other structural variants. The UGT Os79 from rice has emerged as a promising candidate for inactivation of mycotoxins on account of its ability to glycosylate DON, nivalenol and hydrolyzed T-2 toxin (HT-2)...
November 15, 2017: Biochemistry
https://www.readbyqxmd.com/read/29122868/genome-sequence-of-fusarium-graminearum-item-124-atcc-56091-a-mycotoxigenic-plant-pathogen
#16
Antonio Zapparata, Daniele Da Lio, Stefania Somma, Isabel Vicente Muñoz, Luca Malfatti, Giovanni Vannacci, Antonio Moretti, Riccardo Baroncelli, Sabrina Sarrocco
Fusarium graminearum is among the main causal agents of Fusarium head blight (FHB), or scab, of wheat and other cereals, caused by a complex of Fusarium species, worldwide. Besides causing economic losses in terms of crop yield and quality, F. graminearum poses a severe threat to animal and human health. Here, we present the first draft whole-genome sequence of the mycotoxigenic Fusarium graminearum strain ITEM 124, also providing useful information for comparative genomics studies.
November 9, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29117786/molecular-characterization-and-functional-analysis-of-pr-1-like-proteins-identified-from-the-wheat-head-blight-fungus-fusarium-graminearum
#17
Shunwen Lu, Michael Edwards
The group 1 pathogenesis-related (PR-1) proteins originally identified from plants and their homologues are also found in other eukaryotic kingdoms. Studies on non-plant PR-1-like (PR-1L) proteins have been pursued widely in humans/animals but rarely in filamentous ascomycetes. Here we report the characterization of four PR-1L proteins identified from the ascomycete fungus Fusarium graminearum, the primary cause of Fusarium head blight of wheat and barley. Molecular cloning revealed that the four FgPR-1L proteins are all encoded by small open reading frames (612 to 909 bp) that are often interrupted by introns, in contrast to plant PR-1 genes that lack introns...
November 8, 2017: Phytopathology
https://www.readbyqxmd.com/read/29105597/deoxynivalenol-in-wheat-maize-wheat-flour-and-pasta-surveys-in-hungary-in-2008-2015
#18
Helga Tima, Adrienn Berkics, Zoltán Hannig, András Ittzés, Eleonóra Kecskésné Nagy, Csilla Mohácsi-Farkas, Gabriella Kiskó
Among Fusarium mycotoxins deoxynivalenol (DON) is the most common contaminant in case of cereals and cereal based foods in Hungary. In this study Hungarian wheat (n=305), maize (n=108), wheat flour (n=179), pasta (n=226) samples were analysed (N=818). The samples were collected in 2008-2015 in Hungary. Applied methods of analysis were enzyme-linked immunosorbent assay (ELISA) and liquid-chromatography coupled with a mass spectrometer (LC-MS). Results were compared and evaluated with Hungarian wheather data...
November 6, 2017: Food Additives & Contaminants. Part B, Surveillance
https://www.readbyqxmd.com/read/29105256/fusarium-crown-rot-caused-by-fusarium-pseudograminearum-in-cereal-crops-recent-progress-and-future-prospects
#19
Kemal Kazan, Donald Gardiner
Diseases caused by Fusarium pathogens inflict major yield and quality losses on many economically important plant species worldwide, including cereals. Fusarium crown rot (FCR) caused by Fusarium pseudograminearum is a cereal disease that occurs in many arid and semi-arid cropping regions of the world. In recent years, this disease has become more prevalent, in part due to the adoption of moisture-preserving cultural practices such as minimum tillage and stubble retention. In this pathogen profile, we present a brief overview of recent research efforts that not only have advanced our understanding of the interactions between F...
November 4, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/29096362/gold-nanoparticle-enhanced-multiplexed-imaging-surface-plasmon-resonance-ispr-detection-of-fusarium-mycotoxins-in-wheat
#20
Md Zakir Hossain, Chris M Maragos
A rapid, sensitive and multiplexed imaging surface plasmon resonance (iSPR) biosensor assay was developed and validated for three Fusarium toxins, deoxynivalenol (DON), zearalenone (ZEA) and T-2 toxin. The iSPR assay was based on a competitive inhibition format with secondary antibodies (Ab2) conjugated to gold nanoparticles (AuNPs) used as a signal amplification tag. Signal was amplified nearly 25-fold for DON, 90-fold for ZEA and 12-fold for T-2 toxin assay using Ab2-AuNPs. Analyses, including steps to regenerate the sensor, took 17...
October 16, 2017: Biosensors & Bioelectronics
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