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fusarium wheat or triticum

Denis Anthony Shah, Erick De Wolf, Pierce A Paul, Laurence V Madden
In past efforts, input weather variables for Fusarium head blight (FHB) prediction models in the United States were identified after following some version of the window-pane algorithm, which discretizes a continuous weather time series into fixed-length windows before searching for summary variables associated with FHB risk. Functional data analysis, on the other hand, reconstructs the assumed continuous process (represented by a series of recorded weather data) by using smoothing functions, and is an alternative way of working with time series data with respect to FHB risk...
June 13, 2018: Phytopathology
Huifang Lv, Haishun Cao, Muhammad A Nawaz, Hamza Sohail, Yuan Huang, Fei Cheng, Qiusheng Kong, Zhilong Bie
A fungus Fusarium oxysporum F. sp. niveum (FON) is the causal organism of Fusarium wilt in watermelon. In this study, we evaluated the effect of wheat intercropping on the Fusarium wilt of watermelon. Our results showed that wheat intercropping decreases the incidence of Fusarium wilt of watermelon, likely due to the secretion of coumaric acid from the roots of wheat that dramatically inhibits FON spore germination, sporulation, and growth. The secretion of p -hydroxybenzoic acid, ferulic acid, and cinnamic acid from the roots of watermelon stimulates FON spore germination, sporulation, and growth...
2018: Frontiers in Plant Science
Fei Xu, Gongqiang Yang, Junmei Wang, Yuli Song, Lulu Liu, Kai Zhao, Yahong Li, Zihang Han
The distribution frequency of pathogenic fungi associated with root and crown rot of winter wheat ( Triticum aestivum ) from 104 fields in the North China Plain was determined during the period from 2013 to 2016. The four most important species identified were Bipolaris sorokiniana (24.0% from roots; 33.7% from stems), Fusarium pseudograminearum (14.9% from roots; 27.8% from stems), Rhizoctonia cerealis (1.7% from roots; 4.4% from stems), and Gaeumannomyces graminis var. tritici (9.8% from roots; 4.4% from stems)...
2018: Frontiers in Microbiology
Katarzyna Bilska, Tomasz Kulik, Anna Ostrowska-Kołodziejczak, Maciej Buśko, Matias Pasquali, Marco Beyer, Anna Baturo-Cieśniewska, Marcin Juda, Dariusz Załuski, Kinga Treder, Joerg Denekas, Juliusz Perkowski
Fusarium culmorum is a ubiquitous, soil-borne fungus (ascomycete) causing foot and root rot and Fusarium head blight on cereals. It is responsible for yield and quality losses as well as grain contamination with mycotoxins, which are a potential health hazard. An extremely sensitive mitochondrial-based qPCR assay (FcMito qPCR) for quantification of F. culmorum was developed in this study. To provide specificity, the FcMito assay was successfully validated against 85 F. culmorum strains and 53 isolates of 30 other fungal species...
May 21, 2018: Toxins
Mingxia Zhao, Yueqiang Leng, Shiaoman Chao, Steven S Xu, Shaobin Zhong
The major QTL for FHB resistance from hexaploid wheat line PI 277012 was successfully introgressed into durum wheat and minor FHB resistance QTL were detected in local durum wheat cultivars. A combination of these QTL will enhance FHB resistance of durum wheat. Fusarium head blight (FHB), caused by Fusarium graminearum, is a devastating disease of durum wheat. To combat the disease, great efforts have been devoted to introgress FHB resistance from its related tetraploid and hexaploid wheat species into adapted durum cultivars...
June 4, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
Marlies Decleer, Sofie Landschoot, Sarah De Saeger, Andrea Rajkovic, Kris Audenaert
BACKGROUND: Fusarium head blight (FHB) is a well-known disease of wheat caused by a complex of Fusarium species. In this research, an extensive study on the occurrence of the emerging Fusarium cyclodepsipeptide mycotoxins beauvericin and enniatins was conducted in Belgian wheat grains harvested in 2015 and 2016. To assess the link between Fusarium species and their mycotoxin production, UPLC-MS/MS was used to quantify the cyclodepsipeptide mycotoxins, while qPCR was applied to quantify the presence of Fusarium species...
May 31, 2018: Journal of the Science of Food and Agriculture
Peisen Su, Xiuxiu Guo, Yanhui Fan, Liang Wang, Guanghui Yu, Wenyang Ge, Lanfei Zhao, Xin Ma, Jiajie Wu, Anfei Li, Hongwei Wang, Lingrang Kong
The resistance to Fusarium head blight (FHB) in wheat is mainly via the restrain of fungal expansion through spike rachis (type II resistance). In order to unravel the resistance mechanisms, Brachypodium distachyon 21 (Bd21), a monocotyledonous model plant, was previously proved to interact with F. graminearum, while the disease development in spike still needs to be explored in detail. Herein, it is found that the fungal spores mainly germinate on pistil of Bd21, then the hyphae rapidly extend to the bottom of floret and enter spike rachis, similar with the infection progress in wheat...
July 2018: Plant Science: An International Journal of Experimental Plant Biology
Jon Y Takemoto, Stephen N Wegulo, Gary Y Yuen, Julie A Stevens, Charlene C Jochum, Cheng-Wei T Chang, Yukie Kawasaki, Gene W Miller
K20 is a novel amphiphilic aminoglycoside capable of inhibiting many fungal species. K20's capabilities to inhibit Fusarium graminearum the causal agent wheat Fusarium head blight (FHB) and to this disease were examined. K20 inhibited the growth of F. graminearum (minimum inhibitory concentrations, 7.8-15.6 mg L-1 ) and exhibited synergistic activity when combined with triazole and strobilurin fungicides. Application of K20 up to 720 mg L-1 to wheat heads in the greenhouse showed no phytotoxic effects. Spraying wheat heads in the greenhouse with K20 alone at 360 mg L-1 lowered FHB severity below controls while combining K20 with half-label rates of Headline (pyraclostrobin) improved its disease control efficacy...
June 2018: Fungal Biology
Gabriele Schiro, Gernot Verch, Volker Grimm, Marina E H Müller
Fusarium spp. and Alternaria spp., two genera of filamentous fungi, are common colonizers of the wheat phyllosphere. Both can be pathogenic and produce mycotoxins that are harmful to consumers. Their in-field infection dynamics have been a focus for the development of new control strategies. We analysed the abundance on plant ears and spore deposition patterns of Fusarium spp. and Alternaria spp. in a topographically heterogeneous field. Abundances were assessed genetically, using qPCR-based techniques, and passive spore traps were installed for quantifying the spore deposition at different plant heights...
May 24, 2018: Journal of Fungi (Basel, Switzerland)
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
Daiyan Li, Tinghui Li, Yanli Wu, Xiaohui Zhang, Wei Zhu, Yi Wang, Jian Zeng, Lili Xu, Xing Fan, Lina Sha, Haiqin Zhang, Yonghong Zhou, Houyang Kang
Tetraploid Thinopyrum elongatum , which has superior abiotic stress tolerance characteristics, and exhibits resistance to stripe rust, powdery mildew, and Fusarium head blight, is a wild relative of wheat and a promising source of novel genes for wheat improvement. Currently, a high-resolution Fluorescence in situ hybridization (FISH) karyotype of tetraploid Th. elongatum is not available. To develop chromosome-specific FISH-based markers, the hexaploid Trititrigia 8801 and two accessions of tetraploid Th. elongatum were characterized by different repetitive sequences probes...
2018: Frontiers in Plant Science
Xiangjiu Kong, Anne D van Diepeningen, Theo A J van der Lee, Cees Waalwijk, Jingsheng Xu, Jin Xu, Hao Zhang, Wanquan Chen, Jie Feng
Post-translational modifications of chromatin structure by histone acetyltransferase (HATs) play a central role in the regulation of gene expression and various biological processes in eukaryotes. Although HAT genes have been studied in many fungi, few of them have been functionally characterized. In this study, we identified and characterized four putative HATs ( FgGCN5, FgRTT109, FgSAS2, FgSAS3 ) in the plant pathogenic ascomycete Fusarium graminearum , the causal agent of Fusarium head blight of wheat and barley...
2018: Frontiers in Microbiology
Medhat A El-Naggar, Aisha M Alrajhi, Moustafa M Fouda, Eman M Abdelkareem, Tamer M Thabit, Nahla A Bouqellah
Background: Deoxynivalenol (DON) is one of the most important fungal mycotoxins excretedby different Fusarium species in many types of grains and food commodities. It has high damage impact on human and animal immune systems. Objective: This in vitro study aimed to evaluate the influence of silver nanoparticles (Ag-NPs) as an inhibitor for the DON toxin excreted from some Fusarium spp., which were isolated from barely, wheat, and corn grains. Methods: Ag-NPs were estimated on Minimum Inhibitory Concentration, using levels of 5, 25, 50, 75, and 100 ppm, while the effect on DON was conducted with ELISA...
May 3, 2018: Journal of AOAC International
Ruth Schmidt, Mikael B Durling, Victor de Jager, Riya C Menezes, Erik Nordkvist, Aleš Svatoš, Mukesh Dubey, Lukas Lauterbach, Jeroen S Dickschat, Magnus Karlsson, Paolina Garbeva
Fusarium culmorum is one of the most important fungal plant pathogens that causes diseases on a wide diversity of cereal and non-cereal crops. We report herein for the first time the genome sequence of F. culmorum strain PV and its associated secondary metabolome that plays a role in the interaction with other microorganisms and contributes to its pathogenicity on plants. The genome revealed the presence of two terpene synthases, trichodiene and longiborneol synthase, which generate an array of volatile terpenes...
April 30, 2018: FEMS Microbiology Ecology
Tomoya Yoshinari, Nanami Takeda, Maiko Watanabe, Yoshiko Sugita-Konishi
4,15-Diacetoxyscirpenol (4,15-DAS) is a type A trichothecene mycotoxin produced by Fusarium species. Four modified forms of 4,15-DAS including 7-hydroxydiacetoxyscirpenol, 7,8-dihydroxydiacetoxyscirpenol, 4β,8α,15-triacetoxy-3α,7α-dihydroxy-12,13-epoxytrichothec-9-ene and 4,15-diacetylnivalenol were purified from cultures of F. equiseti . An analytical method using a multifunctional column has been developed for the simultaneous determination of 4,15-DAS, its four modified forms, T-2 toxin, HT-2 toxin and neosolaniol in cereals...
April 26, 2018: Toxins
Shunyi Li, Qiuxiang Yu, La Xiang, Yuling Zhou, Guimin Zhang
Zearalenone (ZEN) and its derivatives are non-steroidal estrogenic mycotoxins mainly produced by Fusarium species. They are widely distributed in grain feeds originated from maize, barley, wheat and sorghum, causing serious harm to animal and human health. Currently, there is a pressing need of an efficient technology for ZEN degradation and detoxification. Because traditional physical and chemical methods could not effectively detoxify ZEN in grains, and might also affect the grain nutrients and food taste, and even result in secondary pollution, the biological technologies are developed to detoxify ZEN and its derivatives...
April 25, 2018: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
Qing-Song Yuan, Peng Yang, Ai-Bo Wu, Dong-Yun Zuo, Wei-Jie He, Mao-Wei Guo, Tao Huang, He-Ping Li, Yu-Cai Liao
Contamination by fungal and bacterial species and their metabolites can affect grain quality and health of wheat consumers. In this study, sequence analyses of conserved DNA regions of fungi and bacteria combined with determination of trichothecenes and aflatoxins revealed the microbiome and mycotoxins of wheat from different silo positions (top, middle, and bottom) and storage times (3, 6, 9, and 12 months). The fungal community in wheat on the first day of storage (T₀) included 105 classified species (81 genera) and 41 unclassified species...
April 24, 2018: Toxins
Vladimir Popović, Nicholas Fairbanks, Jacob Pierscianowski, Michael Biancaniello, Ting Zhou, Tatiana Koutchma
Fungal disease of grain crops is a concern for the agricultural industry, resulting in economic losses. Aside from severe yield losses, mycotoxigenic fungi such as Penicillium and Fusarium can produce harmful mycotoxins, including deoxynivalenol (DON), zearalenone (ZEN), and ochratoxin A (OTA). This proof-of-concept study explored the feasibility and effects of ultraviolet (UV) C light at 253.7 nm to reduce fungal and mycotoxin loads on model surfaces as well as on maize and wheat kernels using benchtop 2D and 3D illumination strategies...
April 24, 2018: Mycotoxin Research
Xiaohui Wang, Changdong Wang, Junkang Sui, Zhaoyang Liu, Qian Li, Chao Ji, Xin Song, Yurong Hu, Changqian Wang, Rongbo Sa, Jiamiao Zhang, Jianfeng Du, Xunli Liu
Rhizospheric microorganisms can increase phosphorus availability in the soil. In this regard, the ability of phosphofungi to dissolve insoluble phosphorus compounds is greater than that of phosphate-solubilizing bacteria. The aim of the current study was to identify efficient phosphofungi that could be developed as commercial microbial agents. Among several phosphate-solubilizing fungal isolates screened, strain CS-1 showed the highest phosphorus-solubilization ability. Based on phylogenetic analysis of the internal transcribed spacer region sequence, it was identified as Aspergillus niger...
April 20, 2018: AMB Express
Biancamaria Ciasca, Michelangelo Pascale, Valerio Guido Altieri, Francesco Longobardi, Michele Suman, Dante Catellani, Veronica M T Lattanzio
A strong trend toward using highly selective mass spectrometry technologies for screening of multiple mycotoxins has been observed in recent years. In the present study, the process of validation of a multi-mycotoxin screening method based on liquid chromatography high-resolution mass spectrometry method is presented. The method was intended for the simultaneous screening of the major Fusarium toxins (deoxynivalenol, 3- and 15-acetyl deoxynivalenol, T-2 and HT-2 toxins, zearalenone, enniatins A, A1, B, B1, beauvericin) in wheat...
April 20, 2018: Journal of Mass Spectrometry: JMS
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