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wheat Fhb

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https://www.readbyqxmd.com/read/27898755/examining-the-transcriptional-response-in-wheat-near-isogenic-lines-to-infection-and-deoxynivalenol-treatment
#1
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
#2
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
#3
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...
November 19, 2016: 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
#4
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...
November 14, 2016: Plant Molecular Biology
https://www.readbyqxmd.com/read/27790188/fusarium-head-blight-resistance-qtl-in-the-spring-wheat-cross-kenyon-86ismn-2137
#5
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
#6
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
#7
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
#8
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
#9
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...
October 4, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27706030/metabolomics-and-cheminformatics-analysis-of-antifungal-function-of-plant-metabolites
#10
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
#11
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
https://www.readbyqxmd.com/read/27671121/pvpgip2-accumulation-in-specific-floral-tissues-but-not-in-the-endosperm-limits-fusarium-graminearum-infection-in-wheat
#12
Silvio Tundo, Michela Janni, Ilaria Moscetti, Giulia Mandalà, Daniel Savatin, Ann Blechl, Francesco Favaron, Renato D'Ovidio
Fusarium Head Blight (FHB) caused by Fusarium graminearum is one of the most destructive fungal diseases of wheat worldwide. The pathogen infects the spike at flowering time and causes severe yield losses, deterioration of grain quality, and accumulation of mycotoxins. The understanding of the precise means of pathogen entry and colonization of floral tissue is crucial to providing effective protection against FHB. Polygalacturonase inhibiting proteins (PGIPs) are cell wall proteins that inhibit the activity of polygalacturonases (PGs), a class of pectin-depolymerizing enzymes secreted by microbial pathogens, including Fusaria...
September 27, 2016: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/27664927/application-of-chitosan-and-chitosan-nanoparticles-for-the-control-of-fusarium-head-blight-of-wheat-fusarium-graminearum-in-vitro-and-greenhouse
#13
A Kheiri, S A Moosawi Jorf, A Malihipour, H Saremi, M Nikkhah
Fusarium head blight (FHB) disease caused by Fusarium graminearum is one of the most important diseases of wheat in humid and warm areas. This disease significantly reduces yield as well as seed quality. The aim of this work was to evaluate the possibility of control of FHB by chitosan (CS) and chitosan nanoparticles (CS/NPs). In vitro, the application of various concentrations of CS and CS/NPs showed significant inhibition of both radial mycelial growth and number of colonies formed against F. graminearum...
September 21, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27664721/bacillus-velezensis-rc-218-as-a-biocontrol-agent-to-reduce-fusarium-head-blight-and-deoxynivalenol-accumulation-genome-sequencing-and-secondary-metabolite-cluster-profiles
#14
Juan M Palazzini, Christopher A Dunlap, Michael J Bowman, Sofía N Chulze
Bacillus subtilis RC 218 was originally isolated from wheat anthers as a potential antagonist of Fusarium graminearum, the causal agent of Fusarium head blight (FHB). It was demonstrated to have antagonist activity against the plant pathogen under in vitro and greenhouse assays. The current study extends characterizing B. subtilis RC 218 with a field study and genome sequencing. The field study demonstrated that B. subtilis RC 218 could reduce disease severity and the associated mycotoxin (deoxynivalenol) accumulation, under field conditions...
November 2016: Microbiological Research
https://www.readbyqxmd.com/read/27663684/identification-and-characterization-of-a-fusarium-head-blight-resistance-gene-taact-in-wheat-qtl-2dl
#15
Udaykumar Kage, Shailesh Karre, Ajjamada C Kushalappa, Curt McCartney
Fusarium head blight (FHB) resistance in wheat is considered to be polygenic in nature. Cell wall fortification is one of the best resistance mechanisms in wheat against Fusarium graminearum which causes FHB. Metabolomics approach in our study led to the identification of a wide array of resistance related (RR) metabolites, among which hydroxycinnamic acid amides (HCAAs), such as, coumaroylagmatine and coumaroylputrescine were the highest fold-change RR metabolites in the rachis of a resistant near-isogenic line (NIL-R) upon F...
September 24, 2016: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/27662843/qtl-mapping-of-fusarium-head-blight-resistance-in-three-related-durum-wheat-populations
#16
Noemie Prat, Camille Guilbert, Ursa Prah, Elisabeth Wachter, Barbara Steiner, Thierry Langin, Olivier Robert, Hermann Buerstmayr
The QTL Fhb1 was successfully introgressed and validated in three durum wheat populations. The novel germplasm and the QTL detected will support improvement of Fusarium resistance in durum wheat. Durum wheat (Triticum durum Desf.) is particularly susceptible to Fusarium head blight (FHB) and breeding for resistance is hampered by limited genetic variation within this species. To date, resistant sources are mainly available in a few wild relative tetraploid wheat accessions. In this study, the effect of the well-known hexaploid wheat (Triticum aestivum L...
September 23, 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27606928/dwarfing-genes-rht-b1b-and-rht-d1b-are-associated-with-both-type-i-fhb-susceptibility-and-low-anther-extrusion-in-two-bread-wheat-populations
#17
Xinyao He, Pawan K Singh, Susanne Dreisigacker, Sukhwinder Singh, Morten Lillemo, Etienne Duveiller
It has been well documented that dwarfing genes Rht-B1b and Rht-D1b are associated with Type I susceptibility to Fusarium head blight (FHB) in wheat; but the underlying mechanism has not been well delineated. Anther extrusion (AE) has also been related to Type I resistance for initial FHB infection, where high AE renders FHB resistance. In this study, two doubled haploid populations were used to investigate the impact of the two dwarfing genes on FHB resistance and AE, and to elucidate the role of AE in Rht-mediated FHB susceptibility...
2016: PloS One
https://www.readbyqxmd.com/read/27590814/aphid-infestation-increases-fusarium-langsethiae-and-t-2-and-ht-2-mycotoxins-in-wheat
#18
Jassy Drakulic, Olubukola Ajigboye, Ranjan Swarup, Toby Bruce, Rumiana V Ray
: Fusarium langsethiae is a fungal pathogen of cereal crops that is an increasing problem in northern Europe, but much of its epidemiology is poorly understood. The species produces the mycotoxins T-2 and HT-2, which are highly toxic. It was hypothesized that grain aphids, Sitobion avenae, may transmit F. langsethiae inoculum between wheat plants, and a series of transmission experiments and volatile chemical analyses was performed to test this. Manual translocation of aphids from inoculated to uninfected hosts resulted in pathogen DNA accumulation in hosts...
November 15, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27571309/reevaluation-of-two-quantitative-trait-loci-for-type-ii-resistance-to-fusarium-head-blight-in-wheat-germplasm-pi-672538
#19
X Li, Z P Xiang, W Q Chen, Q L Huang, T G Liu, Q Li, S F Zhong, M Zhang, J W Guo, L Lei, P G Luo
Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is a destructive disease in wheat. A population consisting of 229 F2 and F2:3 plants derived from the cross PI 672538 × L661 was used to evaluate the reactions to FHB. The FHB resistance data distribution in the F2 population indicates that some quantitative trait loci (QTLs) were controlling the FHB resistance in PI 672538. We further detected two major QTLs (Qfhs-2B, Qfhs-3B) from analysis of the resistance data and the PCR-amplified results using WinQTLCart 2...
October 18, 2016: Phytopathology
https://www.readbyqxmd.com/read/27567719/indole-3-acetic-acid-in-fusarium-graminearum-identification-of-biosynthetic-pathways-and-characterization-of-physiological-effects
#20
Kun Luo, Hélène Rocheleau, Peng-Fei Qi, You-Liang Zheng, Hui-Yan Zhao, Thérèse Ouellet
Fusarium graminearum is a devastating pathogenic fungus causing fusarium head blight (FHB) of wheat. This fungus can produce indole-3-acetic acid (IAA) and a very large amount of IAA accumulates in wheat head tissues during the first few days of infection by F. graminearum. Using liquid culture conditions, we have determined that F. graminearum can use tryptamine (TAM) and indole-3-acetonitrile (IAN) as biosynthetic intermediates to produce IAA. It is the first time that F. graminearum is shown to use the l-tryptophan-dependent TAM and IAN pathways rather than the indole-3-acetamide or indole-3-pyruvic acid pathways to produce IAA...
September 2016: Fungal Biology
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