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https://www.readbyqxmd.com/read/28414109/synthesis-and-characterization-of-chitosan-nanoparticles-and-chitosan-effect-on-fusarium-head-blight-and-oxidative-activity-in-wheat
#1
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
#2
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, barley and maize. 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 transcriptome analyses...
April 15, 2017: Molecular Plant Pathology
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
#3
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...
April 7, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28319793/early-response-of-wheat-antioxidant-system-with-special-reference-to-fusarium-head-blight-stress
#4
Valentina Spanic, Marija Viljevac Vuletic, Ivan Abicic, Tihana Marcek
Fusarium head blight (FHB) is a destructive fungal disease of wheat (Triticum aestivum L.) that causes significant grain yield losses and end-use quality reduction associated with contamination by the mycotoxin deoxynivalenol (DON). Three winter wheat varieties ('Vulkan', 'Kraljica' and 'Golubica') were screened for FHB resistance using artificial inoculation technique under field conditions. The aim of this study was to examine a relationship between FHB resistance and the effectiveness of enzyme antioxidant system of wheat varieties under different sampling times (3, 15, 24, 48, 96, 120 and 336 hai)...
March 14, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28231525/construction-of-new-est-ssrs-for-fusarium-resistant-wheat-breeding
#5
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
#6
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
#7
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
#8
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/28080216/occurrence-of-mycotoxins-in-wheat-grains-exposed-to-fungicides-on-fusarium-head-blight-control-in-southern-brazil
#9
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)...
April 3, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/27898755/examining-the-transcriptional-response-in-wheat-near-isogenic-lines-to-infection-and-deoxynivalenol-treatment
#10
Anna N Hofstad, Thomas Nussbaumer, Eduard Akhunov, Sanghyun Shin, Karl G Kugler, H Corby Kistler, Klaus F X Mayer, Gary J Muehlbauer
head blight (FHB) is a disease caused predominantly by the fungal pathogen that affects wheat and other small-grain cereals and can lead to severe yield loss and reduction in grain quality. Trichothecene mycotoxins, such as deoxynivalenol (DON), accumulate during infection and increase pathogen virulence and decrease grain quality. The locus on wheat chromosome 3BS confers Type II resistance to FHB and resistance to the spread of infection on the spike and has been associated with resistance to DON accumulation...
March 2016: Plant Genome
https://www.readbyqxmd.com/read/27898754/genome-wide-association-mapping-of-fusarium-head-blight-resistance-in-wheat-using-genotyping-by-sequencing
#11
Marcio P Arruda, Patrick Brown, Gina Brown-Guedira, Allison M Krill, Carrie Thurber, Keith R Merrill, Bradley J Foresman, Frederic L Kolb
Fusarium head blight (FHB) is one of the most important wheat ( L.) diseases worldwide, and host resistance displays complex genetic control. A genome-wide association study (GWAS) was performed on 273 winter wheat breeding lines from the midwestern and eastern regions of the United States to identify chromosomal regions associated with FHB resistance. Genotyping-by-sequencing (GBS) was used to identify 19,992 single-nucleotide polymorphisms (SNPs) covering all 21 wheat chromosomes. Marker-trait associations were performed with different statistical models, the most appropriate being a compressed mixed linear model (cMLM) controlling for relatedness and population structure...
March 2016: Plant Genome
https://www.readbyqxmd.com/read/27866226/high-accuracy-of-predicting-hybrid-performance-of-fusarium-head-blight-resistance-by-mid-parent-values-in-wheat
#12
Thomas Miedaner, Albert W Schulthess, Manje Gowda, Jochen C Reif, C Friedrich H Longin
Mid-parent values of Fusarium head blight (FHB) resistance tested across several locations are a good predictor of hybrid performance caused by a preponderance of additive gene action in wheat. Hybrid breeding is intensively discussed as one solution to boost yield and yield stability including an enhanced biotic stress resistance. Our objectives were to investigate (1) the heterosis for Fusarium head blight (FHB) resistance, (2) the importance of general (GCA) vs. specific combining ability (SCA) for FHB resistance, and (3) the possibility to predict the FHB resistance of the hybrids by the parental means...
February 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27844244/metabolo-transcriptome-profiling-of-barley-reveals-induction-of-chitin-elicitor-receptor-kinase-gene-hvcerk1-conferring-resistance-against-fusarium-graminearum
#13
Shailesh Karre, Arun Kumar, Dhananjay Dhokane, Ajjamada C Kushalappa
We report plausible disease resistance mechanisms induced by barley resistant genotype CI89831 against Fusarium head blight (FHB) based on metabolo-transcriptomics approach. We identified HvCERK1 as a candidate gene for FHB resistance, which is functional in resistant genotype CI9831 but non-functional in susceptible cultivars H106-371 and Zhedar-2. For the first time, we were able to show a hierarchy of regulatory genes that regulated downstream biosynthetic genes that eventually produced resistance related metabolites that reinforce the cell walls to contain the pathogen progress in plant...
February 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/27790188/fusarium-head-blight-resistance-qtl-in-the-spring-wheat-cross-kenyon-86ismn-2137
#14
Curt A McCartney, Anita L Brûlé-Babel, George Fedak, Richard A Martin, Brent D McCallum, Jeannie Gilbert, Colin W Hiebert, Curtis J Pozniak
Fusarium head blight (FHB), caused by Fusarium graminearum, is a very important disease of wheat globally. Damage caused by F. graminearum includes reduced grain yield, reduced grain functional quality, and results in the presence of the trichothecene mycotoxin deoxynivalenol in Fusarium-damaged kernels. The development of FHB resistant wheat cultivars is an important component of integrated management. The objective of this study was to identify QTL for FHB resistance in a recombinant inbred line (RIL) population of the spring wheat cross Kenyon/86ISMN 2137...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27788144/rna-seq-revealed-differences-in-transcriptomes-between-3adon-and-15adon-populations-of-fusarium-graminearum-in-vitro-and-in-planta
#15
Krishna D Puri, Changhui Yan, Yueqiang Leng, Shaobin Zhong
Fusarium graminearum is the major causal agent of Fusarium head blight (FHB) in barley and wheat in North America. The fungus not only causes yield loss of the crops but also produces harmful trichothecene mycotoxins [Deoxynivalenol (DON) and its derivatives-3-acetyldeoxynivalenol (3ADON) and 15-acetyldeoxynivalenol (15ADON), and nivalenol (NIV)] that contaminate grains. Previous studies showed a dramatic increase of 3ADON-producing isolates with higher aggressiveness and DON production than the 15ADON-producing isolates in North America...
2016: PloS One
https://www.readbyqxmd.com/read/27776114/wheat-fhb1-encodes-a-chimeric-lectin-with-agglutinin-domains-and-a-pore-forming-toxin-like-domain-conferring-resistance-to-fusarium-head-blight
#16
Nidhi Rawat, Michael O Pumphrey, Sixin Liu, Xiaofei Zhang, Vijay K Tiwari, Kaori Ando, Harold N Trick, William W Bockus, Eduard Akhunov, James A Anderson, Bikram S Gill
Fusarium head blight (FHB), caused by Fusarium graminearum, is a devastating disease of wheat and barley that leads to reduced yield and mycotoxin contamination of grain, making it unfit for human consumption. FHB is a global problem, with outbreaks in the United States, Canada, Europe, Asia and South America. In the United States alone, total direct and secondary economic losses from 1993 to 2001 owing to FHB were estimated at $7.67 billion. Fhb1 is the most consistently reported quantitative trait locus (QTL) for FHB resistance breeding...
October 24, 2016: Nature Genetics
https://www.readbyqxmd.com/read/27755583/characterization-of-triticum-aestivum-abscisic-acid-receptors-and-a-possible-role-for-these-in-mediating-fusairum-head-blight-susceptibility-in-wheat
#17
Cameron S Gordon, Nandhakishore Rajagopalan, Eddy P Risseeuw, Marci Surpin, Fraser J Ball, Carla J Barber, Leann M Buhrow, Shawn M Clark, Jonathan E Page, Chris D Todd, Suzanne R Abrams, Michele C Loewen
Abscisic acid (ABA) is a well-characterized plant hormone, known to mediate developmental aspects as well as both abiotic and biotic stress responses. Notably, the exogenous application of ABA has recently been shown to increase susceptibility to the fungal pathogen Fusarium graminearum, the causative agent of Fusarium head blight (FHB) in wheat and other cereals. However roles and mechanisms associated with ABA's modulation of pathogen responses remain enigmatic. Here the identification of putative ABA receptors from available genomic databases for Triticum aestivum (bread wheat) and Brachypodium distachyon (a model cereal) are reported...
2016: PloS One
https://www.readbyqxmd.com/read/27744264/involvement-of-the-fusarium-graminearum-cerato-platanin-proteins-in-fungal-growth-and-plant-infection
#18
Alessandra Quarantin, Anika Glasenapp, Wilhelm Schäfer, Francesco Favaron, Luca Sella
The genome of Fusarium graminearum, a necrotrophic fungal pathogen causing Fusarium head blight (FHB) disease of wheat, barley and other cereal grains, contains five genes putatively encoding for proteins with a cerato-platanin domain. Cerato-platanins are small secreted cysteine-rich proteins possibly localized in the fungal cell walls and also contributing to the virulence. Two of these F. graminearum proteins (FgCPP1 and FgCPP2) belong to the class of SnodProt proteins which exhibit phytotoxic activity in the fungal pathogens Botrytis cinerea and Magnaporthe grisea...
December 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27706030/metabolomics-and-cheminformatics-analysis-of-antifungal-function-of-plant-metabolites
#19
Miroslava Cuperlovic-Culf, NandhaKishore Rajagopalan, Dan Tulpan, Michele C Loewen
Fusarium head blight (FHB), primarily caused by Fusarium graminearum, is a devastating disease of wheat. Partial resistance to FHB of several wheat cultivars includes specific metabolic responses to inoculation. Previously published studies have determined major metabolic changes induced by pathogens in resistant and susceptible plants. Functionality of the majority of these metabolites in resistance remains unknown. In this work we have made a compilation of all metabolites determined as selectively accumulated following FHB inoculation in resistant plants...
September 30, 2016: Metabolites
https://www.readbyqxmd.com/read/27676181/multiple-minor-qtls-are-responsible-for-fusarium-head-blight-resistance-in-chinese-wheat-landrace-haiyanzhong
#20
Jin Cai, Shan Wang, Tao Li, Guorong Zhang, Guihua Bai
Fusarium head blight (FHB), caused by Fusarium graminearum Schwabe, is a devastating disease in wheat (Triticum aestivum L.). Use of host resistance is one of the most effective strategies to minimize the disease damage. Haiyanzhong (HYZ) is a Chinese wheat landrace that shows a high level of resistance to FHB spread within a spike (type II resistance). To map the quantitative trait loci (QTLs) in HYZ and identify markers tightly linked to the QTLs for FHB resistance, a population of 172 recombinant inbred lines (RILs) from a cross between HYZ and Wheaton (FHB susceptible) was genotyped using simple sequence repeats (SSRs) and single-nucleotide polymorphisms (SNPs) derived from genotyping-by-sequencing (GBS), and evaluated for percentage of symptomatic spikelets (PSSs) per spike in three greenhouse experiments...
2016: PloS One
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