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fusarium wheat or triticum

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https://www.readbyqxmd.com/read/28231525/construction-of-new-est-ssrs-for-fusarium-resistant-wheat-breeding
#1
Aysen Yumurtaci, Hulya Sipahi, Ayed Al-Abdallat, Abdulqader Jighly, Michael Baum
Surveying Fusarium resistance in wheat with easy applicable molecular markers such as simple sequence repeats (SSRs) is a prerequest for molecular breeding. Expressed sequence tags (ESTs) are one of the main sources for development of new SSR candidates. Therefore, 18.292 publicly available wheat ESTs were mined and genotyping of newly developed 55 EST-SSR derived primer pairs produced clear fragments in ten wheat cultivars carrying different levels of Fusarium resistance. Among the proved markers, 23 polymorphic EST-SSRs were obtained and related alleles were mostly found on B and D genome...
February 11, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28212314/a-gin4-like-protein-kinase-gil1-involvement-in-hyphal-growth-asexual-development-and-pathogenesis-in-fusarium-graminearum
#2
Dan Yu, Shijie Zhang, Xiaoping Li, Jin-Rong Xu, Zachary Schultzhaus, Qiaojun Jin
Fusarium graminearum is the main causal agent of Fusarium head blight (FHB) on wheat and barley. In a previous study, a GIN4-like protein kinase gene, GIL1, was found to be important for plant infection and sexual reproduction. In this study we further characterized the functions of GIL1 kinase in different developmental processes. The Δgil1 mutants were reduced in growth, conidiation, and virulence, and formed whitish and compact colonies. Although phialide formation was rarely observed in the mutants, deletion of GIL1 resulted in increased hyphal branching and increased tolerance to cell wall and cell membrane stresses...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28198421/tawrky70-transcription-factor-in-wheat-qtl-2dl-regulates-downstream-metabolite-biosynthetic-genes-to-resist-fusarium-graminearum-infection-spread-within-spike
#3
Udaykumar Kage, Kalenahalli N Yogendra, Ajjamada C Kushalappa
A semi-comprehensive metabolomics was used to identify the candidate metabolites and genes to decipher mechanisms of resistance in wheat near-isogenic lines (NILs) containing QTL-2DL against Fusarium graminearum (Fg). Metabolites, with high fold-change in abundance, belonging to hydroxycinnamic acid amides (HCAAs): such as coumaroylagmatine, coumaroylputrescine and Fatty acids: phosphatidic acids (PAs) were identified as resistance related induced (RRI) metabolites in rachis of resistant NIL (NIL-R), inoculated with Fg...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28163582/mapping-a-qtl-conferring-resistance-to-fusarium-head-blight-on-chromosome-1b-in-winter-wheat-triticum-aestivum-l
#4
Zenta Nishio, Chihiro Onoe, Miwako Ito, Tadashi Tabiki, Koichi Nagasawa, Hideho Miura
Fusarium head blight (FHB) is one of the most devastating diseases of wheat (Triticum aestivum L.), and the development of cultivars with FHB resistance is the most effective way to control the disease. Yumechikara is a Japanese hard red winter wheat cultivar that shows moderate resistance to FHB with superior bread-making quality. To identify quantitative trait loci (QTLs) for FHB resistance in Yumechikara, we evaluated doubled haploid lines derived from a cross between Yumechikara and a moderate susceptible cultivar, Kitahonami, for FHB resistance in a 5-year field trial, and we analyzed polymorphic molecular markers between the parents...
December 2016: Breeding Science
https://www.readbyqxmd.com/read/28159864/resistance-to-multiple-soil-borne-pathogens-of-the-pacific-northwest-u-s-a-is-co-located-in-a-wheat-recombinant-inbred-line-population
#5
Alison L Thompson, Aaron K Mahoney, Richard W Smiley, Timothy C Paulitz, Scot Hulbert, Kim Garland-Campbell
Soil-borne pathogens of the Pacific Northwest, U.S.A. decrease yields in both spring and winter wheat. Pathogens of economic importance include Fusarium culmorum, Pratylenchus neglectus, P. thornei, and Rhizoctonia solani AG8. Few options are available to growers to manage these pathogens and reduce yield loss, therefore the focus for breeding programs is on developing resistant wheat cultivars. A recombinant inbred line population, LouAu (MP-7, NSL 511036), was developed to identify quantitative trait loci associated with resistance to P...
February 3, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28159289/untargeted-metabolomics-based-on-ultra-high-performance-liquid-chromatography-high-resolution-mass-spectrometry-merged-with-chemometrics-a-new-predictable-tool-for-an-early-detection-of-mycotoxins
#6
Josep Rubert, Laura Righetti, Milena Stranska-Zachariasova, Zbynek Dzuman, Jana Chrpova, Chiara Dall'Asta, Jana Hajslova
In order to explore the early detection of mycotoxins in wheat three standardized approaches (Fusarium disease severity, PCR assays for Fusarium spp. identification and mycotoxin quantification) and a novel untargeted metabolomics strategy were jointly assessed. In the first phase of this research, standardized approaches were able to quantify mycotoxins and identify Fusarium spp. Then, an UHPLC-QTOF metabolic fingerprinting method was developed to investigate plant-pathogen cross-talk. At the same time, chemometrics analysis demonstrated to be a powerful tool in order to distinguish low and strong infection levels...
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28142217/the-cyclase-associated-protein-fgcap1-has-both-pka-dependent-and-independent-functions-during-don-production-and-plant-infection-in-fusarium-graminearum
#7
Tao Yin, Qiang Zhang, Jianhua Wang, Huiquan Liu, Chenfang Wang, Jin-Rong Xu, Cong Jiang
Fusarium graminearum is a causal agent of wheat scab and a producer of trichothecene mycotoxin deoxynivalenol (DON). The expression of trichothecene biosynthesis (TRI) genes and DON production are mainly regulated by the cAMP-PKA pathway and two pathway-specific transcription factors (TRI6 and TRI10). Interestingly, mutants deleted of TRI6 had reduced expression of several components of cAMP signaling, including the FgCAP1 adenylate binding protein gene that has not been functionally characterized in F. graminearum...
January 31, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28134269/conversion-from-long-term-cultivated-wheat-field-to-jerusalem-artichoke-plantation-changed-soil-fungal-communities
#8
Xingang Zhou, Jianhui Zhang, Danmei Gao, Huan Gao, Meiyu Guo, Li Li, Mengliang Zhao, Fengzhi Wu
Understanding soil microbial communities in agroecosystems has the potential to contribute to the improvement of agricultural productivity and sustainability. Effects of conversion from long-term wheat plantation to Jerusalem artichoke (JA) plantation on soil fungal communities were determined by amplicon sequencing of total fungal ITS regions. Quantitative PCR and PCR-denaturing gradient gel electrophoresis were also used to analyze total fungal and Trichoderma spp. ITS regions and Fusarium spp. Ef1α genes...
January 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28132080/fvsnf1-the-sucrose-non-fermenting-protein-kinase-gene-of-fusarium-virguliforme-is-required-for-cell-wall-degrading-enzymes-expression-and-sudden-death-syndrome-development-in-soybean
#9
Kazi T Islam, Jason P Bond, Ahmad M Fakhoury
Fusarium virguliforme is a soil-borne pathogenic fungus that causes sudden death syndrome (SDS) in soybean. Its pathogenicity is believed to require the activity of cell-wall-degrading enzymes (CWDEs). The sucrose non-fermenting protein kinase 1 gene (SNF1) is a key component of the glucose de-repression pathway in yeast, and a regulator of gene expression for CWDEs in some plant pathogenic fungi. To elucidate the functional role of the SNF1 homolog in F. virguliforme, FvSNF1 was disrupted using a split-marker strategy...
January 28, 2017: Current Genetics
https://www.readbyqxmd.com/read/28109774/a-tomatinase-like-enzyme-acts-as-a-virulence-factor-in-the-wheat-pathogen-fusarium-graminearum
#10
Jason Carere, Aurélie H Benfield, Mélodie Ollivier, Chunji J Liu, Kemal Kazan, Donald M Gardiner
During their interactions with plants, fungal pathogens employ large numbers of pathogenesis-associated molecules including secreted effectors and enzymes that can degrade various defence compounds. However, in many cases, in planta targets of pathogen-produced enzymes remain unknown. We identified a gene in the wheat pathogen Fusarium graminearum, encoding a putative enzyme that shows 84% sequence identity to FoTom1, a tomatinase produced by the tomato pathogen Fusarium oxysporum f. sp. lycopersici. In F. oxysporum f...
January 18, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28107943/development-of-a-nanoarray-capable-of-the-rapid-and-simultaneous-detection-of-zearalenone-t2-toxin-and-fumonisin
#11
Sara E McNamee, Francesca Bravin, Giulia Rosar, Christopher T Elliott, Katrina Campbell
Fusarium mycotoxins such as trichothecenes, zearalenone and fumonisins occur on a worldwide basis in cereal grains, animal feeds and forages. Practical solutions for multiple mycotoxin determination in samples are required by industry and regulators for cost effective screening purposes. The feasibility of developing a novel multiplex nanoarray for the simultaneous and semi-quantitative detection of three regulated mycotoxins: zearalenone (ZEA), T2-toxin (T2) and fumonisin B1 (FUM) was examined. Additionally, the assay was also able to detect HT2 toxin and fumonisin B2 and B3 due to the cross reactivity profiles of the antibodies used...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28080216/occurrence-of-mycotoxins-in-wheat-grains-exposed-to-fungicides-on-fusarium-head-blight-control-in-southern-brazil
#12
Leandro N Marques, Ionara R Pizzutti, Ricardo S Balardin, Ingrid D Dos Santos, Jonatan V Dias, Marlon T Stefanello, Pablo T Serafini
Mycotoxins occurrence in wheat grains impose risks to human and animal health. The southern Brazil has favorable weather conditions for Fusarium graminearum infections and consequently for mycotoxins accumulation on grains. The goal of this study was to evaluate the behavior of new wheat commercial genotypes to Fusarium Head Blight (FHB), to control performance of new fungicide formulations and their relationship with mycotoxins concentration in grains. The manly mycotoxin occurrence on wheat grains in southern Brazil was deoxynivalenol (DON)...
January 12, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28064121/characterization-of-fusarium-graminearum-isolates-recovered-from-wheat-samples-from-argentina-by-fourier-transform-infrared-spectroscopy-phenotypic-diversity-and-detection-of-specific-markers-of-aggressiveness
#13
Cecilia B Fígoli, Rodrigo Rojo, Laura A Gasoni, Gisele Kikot, Mariana Leguizamón, Raúl R Gamba, Alejandra Bosch, Teresa M Alconada
Fusarium graminearum is the primary causal agent of Fusarium head blight of wheat in Argentina. This disease affects crop yields and grain quality also reducing the wheat end-use, and causing mycotoxin contamination. The aim of this work was to analyze the phenotypic characteristics associated with phenotypic diversity and aggressiveness of 34 F. graminearum sensu stricto isolates recovered from Argentinean fields in the 2008 growing season using the Fourier Transform Infrared (FTIR) dried film technology. We applied this technique also to search for spectral specific markers associated with aggressiveness...
March 6, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27988803/trans-glycosylation-capacity-of-a-highly-glycosylated-multi-specific-%C3%AE-glucosidase-from-fusarium-solani
#14
Manel Boudabbous, Ines Ben Hmad, Walid Saibi, Mariem Mssawra, Hafedh Belghith, Ali Gargouri
An extracellular β-glucosidase from Fusaruim solani cultivated on wheat bran was purified by only two chromatographic steps. The purified enzyme exhibited optimal temperature and pH at 60 °C and pH 5, respectively. The purified β-glucosidase behaves as a very large protein due to its high degree of glycosylation. More interestingly, the endoglycosidase H (Endo H) treatment led to 97.55% loss of its initial activity after 24 h of treatment. Besides, the addition of Tunicamycin (nucleoside antibiotic blocking the N-glycosylation first step) during the culture of the fungus affected seriously the glycosylation of the enzyme...
December 17, 2016: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/27973454/frequent-occupational-exposure-to-fusarium-mycotoxins-of-workers-in-the-swiss-grain-industry
#15
Hélène Niculita-Hirzel, Gregoire Hantier, Ferdinand Storti, Gregory Plateel, Thierry Roger
Type B trichotecens such as deoxynivalenol (DON), 3-acetyldeoxynivalenol (3-ADON), 15-acetyldeoxynivalenol (15-ADON), nivalenol (NIV) and zearalenone (ZEN) are mycotoxins contaminating wheat and wheat dust. Mycotoxins are toxic upon ingestion and considered potentially toxic when inhaled. Whereas dietary exposure to mycotoxins is controlled in food, data on occupational exposure by inhalation by grain workers are scarce. The objectives of this study were to determine the incidence of DON, 3-ADON, 15-ADON, NIV and ZEN in aerosols generated during grain harvesting and unloading and the risk of exposure of grain workers...
December 12, 2016: Toxins
https://www.readbyqxmd.com/read/27941094/the-fusarium-crown-rot-pathogen-fusarium-pseudograminearum-triggers-a-suite-of-transcriptional-and-metabolic-changes-in-bread-wheat-triticum-aestivum-l
#16
Jonathan J Powell, Jason Carere, Timothy L Fitzgerald, Jiri Stiller, Lorenzo Covarelli, Qian Xu, Frank Gubler, Michelle L Colgrave, Donald M Gardiner, John M Manners, Robert J Henry, Kemal Kazan
BACKGROUND AND AIMS: Fusarium crown rot caused by the fungal pathogen Fusarium pseudograminearum is a disease of wheat and barley, bearing significant economic cost. Efforts to develop effective resistance to this disease have been hampered by the quantitative nature of resistance and a lack of understanding of the factors associated with resistance and susceptibility. Here, we aimed to dissect transcriptional responses triggered in wheat by F. pseudograminearum infection. METHODS: We used an RNA-seq approach to analyse host responses during a compatible interaction and identified >2700 wheat genes differentially regulated after inoculation with F...
December 10, 2016: Annals of Botany
https://www.readbyqxmd.com/read/27938326/whole-genome-sequencing-and-comparative-genomics-of-closely-related-fusarium-head-blight-fungi-fusarium-graminearum-f-meridionale-and-f-asiaticum
#17
Sean Walkowiak, Owen Rowland, Nicolas Rodrigue, Rajagopal Subramaniam
BACKGROUND: The Fusarium graminearum species complex is composed of many distinct fungal species that cause several diseases in economically important crops, including Fusarium Head Blight of wheat. Despite being closely related, these species and individuals within species have distinct phenotypic differences in toxin production and pathogenicity, with some isolates reported as non-pathogenic on certain hosts. In this report, we compare genomes and gene content of six new isolates from the species complex, including the first available genomes of F...
December 9, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27929076/aphids-transform-and-detoxify-the-mycotoxin-deoxynivalenol-via-a-type-ii-biotransformation-mechanism-yet-unknown-in-animals
#18
N De Zutter, K Audenaert, N Arroyo-Manzanares, M De Boevre, C Van Poucke, S De Saeger, G Haesaert, G Smagghe
Biotransformation of mycotoxins in animals comprises phase I and phase II metabolisation reactions. For the trichothecene deoxynivalenol (DON), several phase II biotransformation reactions have been described resulting in DON-glutathiones, DON-glucuronides and DON-sulfates made by glutathione-S-transferases, uridine-diphosphoglucuronyl transferases and sulfotransferases, respectively. These metabolites can be easily excreted and are less toxic than their free compounds. Here, we demonstrate for the first time in the animal kingdom the conversion of DON to DON-3-glucoside (DON-3G) via a model system with plant pathogenic aphids...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27924538/targeting-trichothecene-biosynthetic-genes
#19
Songhong Wei, Theo van der Lee, Els Verstappen, Marga van Gent, Cees Waalwijk
Biosynthesis of trichothecenes requires the involvement of at least 15 genes, most of which have been targeted for PCR. Qualitative PCRs are used to assign chemotypes to individual isolates, e.g., the capacity to produce type A and/or type B trichothecenes. Many regions in the core cluster (consisting of 12 genes) including intergenic regions have been used as targets for PCR, but the most robust assays are targeted to the tri3 and tri12 genes. Quantitative PCRs, that work across trichothecene-producing members of the Fusarium head blight complex, are described along with procedures to quantify the amount of fungal biomass in wheat samples...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27916862/contrasting-roles-of-deoxynivalenol-and-nivalenol-in-host-mediated-interactions-between-fusarium-graminearum-and-sitobion-avenae
#20
Jassy Drakulic, Mohd Haziq Kahar, Olubukola Ajigboye, Toby Bruce, Rumiana V Ray
Fusarium graminearum is the predominant causal species of Fusarium head blight in Europe and North America. Different chemotypes of the species exist, each producing a plethora of mycotoxins. Isolates of differing chemotypes produce nivalenol (NIV) and deoxynivalenol (DON), which differ in toxicity to mammals and plants. However, the effect of each mycotoxin on volatile emissions of plant hosts is not known. Host volatiles are interpreted by insect herbivores such as Sitobion avenae, the English grain aphid, during host selection...
November 30, 2016: Toxins
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