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wheat Fhb

Xin Yi, Jingye Cheng, Zhengning Jiang, Wenjing Hu, Tongde Bie, Derong Gao, Dongsheng Li, Ronglin Wu, Yuling Li, Shulin Chen, Xiaoming Cheng, Jian Liu, Yong Zhang, Shunhe Cheng
Fusarium head blight (FHB) is a destructive wheat disease present throughout the world, and host resistance is an effective and economical strategy used to control FHB. Lack of adequate resistance resource is still a main bottleneck for FHB genetics and wheat breeding research. The synthetic-derived bread wheat line C615, which does not carry the Fhb1 gene, is a promising source of FHB resistance for breeding. A population of 198 recombinant inbred lines (RILs) produced by crossing C615 with the susceptible cultivar Yangmai 13 was evaluated for FHB response using point and spray inoculations...
2018: Frontiers in Plant Science
Yi He, Dawood Ahmad, Xu Zhang, Yu Zhang, Lei Wu, Peng Jiang, Hongxiang Ma
BACKGROUND: Fusarium head blight (FHB), a devastating disease in wheat worldwide, results in yield loses and mycotoxin, such as deoxynivalenol (DON), accumulation in infected grains. DON also facilitates the pathogen colonization and spread of FHB symptoms during disease development. UDP-glycosyltransferase enzymes (UGTs) are known to contribute to detoxification and enhance FHB resistance by glycosylating DON into DON-3-glucoside (D3G) in wheat. However, a comprehensive investigation of wheat (Triticum aestivum) UGT genes is still lacking...
April 19, 2018: BMC Plant Biology
Mingxia Zhao, Guomei Wang, Yueqiang Leng, Humphrey Wanjugi, Pinggen Xi, Mike Grosz, Mohamed Mergoum, Shaobin Zhong
ND2710 is a hard red spring wheat line with a very high level of resistance to Fusarium head blight (FHB). It was selected from the progeny of a cross between ND2603 (an advanced breeding line derived from the Sumai 3/Wheaton cross) and Grandin (a spring wheat cultivar). The FHB resistance of ND2710 is presumably derived from Sumai 3 since the other parents Grandin and Wheaton are very susceptible to FHB. To identify and map the quantitative trait loci (QTL) for FHB resistance in ND2710, we developed a mapping population consisting of 233 recombinant inbred lines (RILs) from the cross between ND2710 and the spring wheat cultivar 'Bobwhite'...
March 21, 2018: Phytopathology
Minely Cerón-Bustamante, Todd J Ward, Amy Kelly, Martha M Vaughan, Susan P McCormick, Christina Cowger, Santos G Leyva-Mir, Héctor E Villaseñor-Mir, Victoria Ayala-Escobar, Cristian Nava-Díaz
Fusarium Head Blight (FHB) is a destructive disease of small grain cereals and a major food safety concern. Epidemics result in substantial yield losses, reduction in crop quality, and contamination of grains with trichothecenes and other mycotoxins. A number of different fusaria can cause FHB, and there are significant regional differences in the occurrence and prevalence of FHB pathogen species and their associated mycotoxins. Information on FHB pathogen and mycotoxin diversity in Mexico has been extremely limited, but is needed to improve disease and mycotoxin control efforts...
May 20, 2018: International Journal of Food Microbiology
Xin Li, Shengfu Zhong, Wanquan Chen, Syeda Akash Fatima, Qianglan Huang, Qing Li, Feiquan Tan, Peigao Luo
Fusarium head blight (FHB), mainly caused by Fusarium graminearum , is one of the most destructive fungal diseases of wheat ( Triticum aestivum L.). Because of the quantitative nature of FHB resistance, its mechanism is poorly understood. We conducted a comparative transcriptome analysis to identify genes that are differentially expressed in FHB-resistant and FHB-susceptible wheat lines grown under field conditions for various periods after F. graminearum infection and determined the chromosomal distribution of the differentially expressed genes (DEGs)...
March 14, 2018: International Journal of Molecular Sciences
Meixin Yang, Hao Zhang, Xiangjiu Kong, Theo van der Lee, Cees Waalwijk, Anne van Diepeningen, Jin Xu, Jingsheng Xu, Wanquan Chen, Jie Feng
In recent years, Fusarium head blight (FHB) outbreaks have occurred much more frequently in China. The reduction of burning of the preceding crop residues is suggested to contribute to more severe epidemics as it may increase the initial inoculum. In this study, a large number of Fusarium isolates was collected from blighted wheat spikes as well as from rice stubble with perithecia originating from nine sampling sites in five provinces in Southern China. Fusarium asiaticum dominated both wheat and rice populations, although rice populations showed a higher species diversity...
March 8, 2018: Toxins
J M Palazzini, A M Torres, S N Chulze
Fusarium head blight (FHB) caused by Fusarium graminearum species complex is a devastating disease that causes extensive yield and quality losses to wheat around the world. Fungicide application and breeding for resistance are among the most important tools to counteract FHB. Biological control is an additional tool that can be used as part of an integrated management of FHB. Bacillus velezensisRC 218, Brevibacillus sp. RC 263 and Streptomyces sp. RC 87B were selected by their potential to control FHB and deoxynivalenol production...
May 2018: Letters in Applied Microbiology
Cathérine Pauline Herter, Erhard Ebmeyer, Sonja Kollers, Viktor Korzun, Willmar Lukas Leiser, Tobias Würschum, Thomas Miedaner
The dwarfing gene Rht24 on chromosome 6A acts in the wheat population 'Solitär × Bussard', considerably reducing plant height without increasing Fusarium head blight severity and delaying heading stage. The introduction of the Reduced height (Rht)-B1 and Rht-D1 semi-dwarfing genes led to remarkable increases in wheat yields during the Green Revolution. However, their utilization also brings about some unwanted characteristics, including the increased susceptibility to Fusarium head blight. Thus, Rht loci that hold the potential to reduce plant height in wheat without concomitantly increasing Fusarium head blight (FHB) susceptibility are urgently required...
February 21, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
Juan Palazzini, Pablo Roncallo, Renata Cantoro, Maria Chiotta, Nadia Yerkovich, Sofia Palacios, Viviana Echenique, Adriana Torres, María Ramírez, Petr Karlovsky, Sofia Chulze
Fusarium head blight (FHB) is a devastating disease that causes extensive yield and quality losses to wheat and other small cereal grains worldwide. Species within the Fusarium graminearum complex are the main pathogens associated with the disease, F. graminearum sensu stricto being the main pathogen in Argentina. Biocontrol can be used as part of an integrated pest management strategy. Phytohormones play a key role in the plant defense system and their production can be induced by antagonistic microorganisms...
February 20, 2018: Toxins
Chiara Biselli, Paolo Bagnaresi, Primetta Faccioli, Xinkun Hu, Margaret Balcerzak, Maria G Mattera, Zehong Yan, Therese Ouellet, Luigi Cattivelli, Giampiero Valè
Fusarium head blight (FHB), caused by the fungus Fusarium graminearum , represents one of the major wheat diseases worldwide, determining severe yield losses and reduction of grain quality due to the accumulation of mycotoxins. The molecular response associated with the wheat 2DL FHB resistance QTL was mined through a comprehensive transcriptomic analysis of the early response to F. graminearum infection, at 3 days post-inoculation, in spikelets and rachis. The analyses were conducted on two near isogenic lines (NILs) differing for the presence of the 2DL QTL (2-2618, resistant 2DL+ and 2-2890, susceptible null)...
2018: Frontiers in Plant Science
Huiping Liu, Yi Dai, Dawn Chi, Shuai Huang, Haifeng Li, Yamei Duan, Wenguang Cao, Yong Gao, George Fedak, Jianmin Chen
Wheatgrass, Thinopyrum elongatum (2n = 2x = 14, EE), is an important wild relative of wheat with many excellent traits, including resistance to Fusarium head blight (FHB), that can be used for durum wheat improvement. Through hybridization of the durum cultivar "Langdon" with the amphiploid 8801 (AABBEE), a disomic alien addition line (2n = 30) with a pair of Th. elongatum 7E chromosomes was obtained and confirmed using chromosome-specific molecular markers of Th. elongatum and genomic in situ hybridization (GISH)...
2017: Cytogenetic and Genome Research
Lanfei Zhao, Xin Ma, Peisen Su, Wenyang Ge, Hongyan Wu, Xiuxiu Guo, Anfei Li, Hongwei Wang, Lingrang Kong
TaUGT5: can reduce the proliferation and destruction of F. graminearum and enhance the ability of FHB resistance in wheat. Deoxynivalenol (DON) is one of the most important toxins produced by Fusarium species that enhances the spread of the pathogen in the host. As a defense, the UDP-glycosyltransferase (UGT) family has been deduced to transform DON into the less toxic form DON-3-O-glucoside (D3G), but the specific gene member in wheat that is responsible for Fusarium head blight (FHB) resistance has been little investigated and proved...
April 2018: Plant Cell Reports
Valheria Castiblanco, Hilda Elena Castillo, Thomas Miedaner
Fusarium culmorum is one of the species causing Fusarium head blight (FHB) in cereals in Europe. We aimed to investigate the association between the nucleotide diversity of ten F. culmorum candidate genes and field ratings of aggressiveness in winter rye. A total of 100 F. culmorum isolates collected from natural infections were phenotyped for FHB at two locations and two years. Variance components for aggressiveness showed significant isolate and isolate-by-environment variance, as expected for quantitative host-pathogen interactions...
January 16, 2018: Journal of Fungi (Basel, Switzerland)
Yi He, Xu Zhang, Yu Zhang, Dawood Ahmad, Lei Wu, Peng Jiang, Hongxiang Ma Ma
Fusarium head blight (FHB) is a destructive fungal disease in wheat worldwide. Efforts have been carried out to combat this disease, and the PFT (pore-forming toxin-like) gene at the quantitative trait locus (QTL) Fhb1 was isolated and found to confer resistance to FHB in Sumai 3. In this study, we characterized PFT in 348 wheat accessions. Four haplotypes of PFT were identified. The wild haplotype of PFT had higher resistance than other haplotypes and explained 13.8% of phenotypic variation in FHB resistance by association analysis...
January 9, 2018: Phytopathology
Hengwei Qian, Juan Du, Mengyu Chi, Xiaomei Sun, Wenxing Liang, Jinguang Huang, Baodu Li
BACKGROUND: Fusarium graminearum is the main pathogen of Fusarium head blight (FHB), a worldwide plant disease and one of the most significant wheat diseases in China. Demethylation inhibitor (DMI) fungicides, such as tebuconazole (TEC), are widely used to control FHB, but long-term use leads to low efficacy against FHB. Earlier studies showed that DMI resistance is associated with the fungal sterol 14α-demethylase (cytochrome P450 CYP51) gene, and that point mutations in the CYP51 gene are the primary mechanism of resistance to DMI fungicides...
December 23, 2017: Pest Management Science
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
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
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)...
March 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
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
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
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