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https://www.readbyqxmd.com/read/29457957/synergistic-effect-of-entomopathogenic-fungus-fusarium-oxysporum-extract-in-combination-with-temephos-against-three-major-mosquito-vectors
#1
Perumal Vivekanandhan, Sengodan Karthi, Muthugounder S Shivakumar, Giovanni Benelli
Mosquito control using chemical insecticides is facing a major challenge due to development of insecticide resistance. Improving the efficiency of existing insecticides using synergistic secondary metabolites of biological origin is increasingly being researched. Herein, we evaluated the toxicity of Fusarium oxysporum extract alone and in binary combinations with temephos, on larvae and pupae of Anopheles stephensi, Aedes aegypti and Culex quinquefaciatus. F. oxysporum extract was characterized using TLC, FT-IR and GC-MS...
February 19, 2018: Pathogens and Global Health
https://www.readbyqxmd.com/read/29453798/melatonin-protects-against-defects-induced-by-deoxynivalenol-during-mouse-oocyte-maturation
#2
Mei Lan, Jun Han, Meng-Hao Pan, Xiang Wan, Zhen-Nan Pan, Shao-Chen Sun
Deoxynivalenol (DON) is one of the most prevalent Fusarium mycotoxins in feedstuff and food. DON causes detrimental effects on human and animal reproductive systems by inducing oxidative stress and apoptosis. While melatonin is a multifunctional endogenous hormone which plays crucial roles in the development of animal germ cells and embryos as a robust deoxidizer. In present study, we explored the effects of melatonin on the DON-exposure mouse oocytes. Our in vitro and in vivo results showed that DON adversely affected mouse oocyte maturation and early embryo cleavage, while melatonin administration ameliorated the toxic effects of DON...
February 17, 2018: Journal of Pineal Research
https://www.readbyqxmd.com/read/29451918/manipulation-of-the-rhizosphere-microbial-community-through-application-of-a-new-bio-organic-fertilizer-improves-watermelon-quality-and-health
#3
Jia Zhao, Jiang Liu, Hong Liang, Jing Huang, Zhe Chen, Yuanjun Nie, Changbiao Wang, Yuguo Wang
Bio-organic fertilizers (BOFs) combine functional microbes with a suitable substrate and have been shown to effectively suppress soil-borne diseases and promote plant growth. Here, we developed a novel bio-organic fertilizer (BOF) by fermentation of a cow plus chicken manure (M) compost using Fen-liquor Daqu (FLD) as a fermentation starter and compared the compositions of bacterial and fungal communities in the rhizosphere soil of watermelon plants after treatment with different fertilizers. Further, we aimed to explore the mechanisms underlying plant-promoting and disease (Fusarium wilt)-suppressing activities of each rhizosphere microbial community...
2018: PloS One
https://www.readbyqxmd.com/read/29446871/effect-of-management-of-organic-wastes-on-inactivation-of-brassica-nigra-and-fusarium-oxysporum-f-sp-lactucae-using-soil-biosolarization
#4
J D Fernández-Bayo, T E Randall, D R Harrold, Y Achmon, K V Hestmark, J Su, R M Dahlquist-Willard, T R Gordon, J J Stapleton, J S VanderGheynst, C W Simmons
BACKGROUND: Soil biosolarization is a promising alternative to conventional fumigation. Volatile fatty acids (VFAs) produced in the soil through fermentation of amended organic matter can affect pest inactivation during biosolarization. The objective was to determine how soil amended with organic wastes that were partially stabilized through either composting or anaerobic digestion affected the inactivation of Brassica nigra (BN, a weed) and Fusarium oxysporum f. sp. lactucae (FOL, a phytopathogenic fungus)...
February 15, 2018: Pest Management Science
https://www.readbyqxmd.com/read/29445920/phylogenetic-diversity-and-in-vitro-susceptibility-profiles-of-human-pathogenic-members-of-the-fusarium-fujikuroi-species-complex-isolated-from-south-india
#5
Ananya Tupaki-Sreepurna, Vijayakishore Thanneru, Sangeetha Natarajan, Savitri Sharma, Anjana Gopi, Murugan Sundaram, Anupma Jyoti Kindo
Availability of molecular methods, gene sequencing, and phylogenetic species recognition have led to rare fungi being recognized as opportunistic pathogens. Fungal keratitis and onychomycosis are fairly common mycoses in the tropics, especially among outdoor workers and enthusiasts. The frequently isolated etiological agents belong to genera Candida, Aspergillus, and Fusarium. Within the genus Fusarium, known to be recalcitrant to prolonged antifungal treatment and associated with poor outcome, members of the Fusarium solani species complex are reported to be most common, followed by members of the Fusarium oxysporum SC and the Fusarium fujikuroi SC (FFSC)...
February 14, 2018: Mycopathologia
https://www.readbyqxmd.com/read/29444330/increased-species-assignment-of-filamentous-fungi-using-maldi-tof-ms-coupled-with-a-simplified-sample-processing-and-an-in-house-library
#6
M E Zvezdanova, P Escribano, A Ruiz, M C Martínez-Jiménez, T Peláez, A Collazos, J Guinea, E Bouza, B Rodríguez-Sánchez
In this study we evaluated the capacity of MALDI-TOF MS (Bruker Daltonics, Bremen, Germany) to identify clinical mould isolates. We focused on two aspects of MALDI-TOF MS identification: the sample processing and the database. Direct smearing of the sample was compared with a simplified processing consisting of mechanical lysis of the moulds followed by a protein extraction step. Both methods were applied to all isolates and the Filamentous Fungi Library 1.0 (Bruker Daltonics) was used for their identification...
February 9, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29444142/roots-of-symptom-free-leguminous-cover-crop-and-living-mulch-species-harbor-diverse-fusarium-communities-that-show-highly-variable-aggressiveness-on-pea-pisum-sativum
#7
Adnan Šišić, Jelena Baćanović-Šišić, Petr Karlovsky, Raphaël Wittwer, Florian Walder, Enio Campiglia, Emanuele Radicetti, Hanna Friberg, Jörg Peter Baresel, Maria R Finckh
Leguminous cover crop and living mulch species show not only great potential for providing multiple beneficial services to agro-ecosystems, but may also present pathological risks for other crops in rotations through shared pathogens, especially those of the genus Fusarium. Disease severity on roots of subterranean clover, white clover, winter and summer vetch grown as cover crop and living mulch species across five European sites as well as the frequency, distribution and aggressiveness to pea of Fusarium spp...
2018: PloS One
https://www.readbyqxmd.com/read/29439459/natural-contamination-with-mycotoxins-produced-by-fusarium-graminearum-and-fusarium-poae-in-malting-barley-in-argentina
#8
María Soledad Nogueira, Julieta Decundo, Mauro Martinez, Susana Nelly Dieguez, Federico Moreyra, Maria Virginia Moreno, Sebastian Alberto Stenglein
Two of the most common species of toxin-producing Fusarium contaminating small cereal grains are Fusarium graminearum and F. poae ; with both elaborating diverse toxins, especially deoxynivalenol (DON) and nivalenol (NIV), respectively. The objective of our work during the 2012-2014 growing seasons was to screen crops for the most commonly isolated Fusarium species and to quantify DON and NIV toxins in natural malting-barley samples from different producing areas of Argentina. We identified 1180 Fusarium isolates in the 119 samples analyzed, with 51...
February 11, 2018: Toxins
https://www.readbyqxmd.com/read/29437977/differential-contribution-of-rnai-components-in-response-to-distinct-fusarium-graminearum-virus-infections
#9
Jisuk Yu, Kyung-Mi Lee, Won Kyong Cho, Ju Yeon Park, Kook-Hyung Kim
The mechanism of RNA interference (RNAi) as a defense response against viruses remains unclear in many plant-pathogenic fungi. In this study, we used reverse genetics and virus-derived small RNA profiling to investigate the contributions of RNAi components to the antiviral response against Fusarium graminearum viruses (FgV1, 2, and 3). qRT-PCR indicated that infection of Fusarium graminearum by FgV1-3 differentially induces the gene expression of RNAi components in F. graminearum FgDICER-2 and FgAGO-1 transcripts accumulated at lower levels following FgV1 infection than following FgV2 or FgV3 infection...
February 7, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29435603/integration-of-sudden-death-syndrome-resistance-loci-in-the-soybean-genome
#10
REVIEW
Hao-Xun Chang, Mitchell G Roth, Dechun Wang, Silvia R Cianzio, David A Lightfoot, Glen L Hartman, Martin I Chilvers
Complexity and inconsistencies in resistance mapping publications of soybean sudden death syndrome (SDS) result in interpretation difficulty. This review integrates SDS mapping literature and proposes a new nomenclature system for reproducible SDS resistance loci. Soybean resistance to sudden death syndrome (SDS) is composed of foliar resistance to phytotoxins and root resistance to pathogen invasion. There are more than 80 quantitative trait loci (QTL) and dozens of single nucleotide polymorphisms (SNPs) associated with soybean resistance to SDS...
February 12, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29434615/comparative-transcriptome-profiles-of-near-isogenic-hexaploid-wheat-lines-differing-for-effective-alleles-at-the-2dl-fhb-resistance-qtl
#11
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
https://www.readbyqxmd.com/read/29434609/frg3-a-target-of-slmir482e-3p-provides-resistance-against-the-fungal-pathogen-fusarium-oxysporum-in-tomato
#12
Hui-Min Ji, Min Zhao, Ying Gao, Xin-Xin Cao, Hui-Ying Mao, Yi Zhou, Wen-Yu Fan, Katherine A Borkovich, Shou-Qiang Ouyang, Peng Liu
The vast majority of plant disease resistance (R) genes encode nucleotide binding site-leucine-rich repeat (NBS-LRR) proteins, which specifically determine the plant immune response and have been demonstrated to be targets of several microRNA (miRNA) families. The fungus Fusarium oxysporum f. sp. lycopersici (FOL) causes vascular wilt disease in tomato worldwide. Here, we explored a possible role for FGR3 in tomato defense against FOL. FRG3 is a predicted NBS-LRR like gene that is targeted by slmiR482e-3p, a member of slmiR482 miRNA family...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29434393/the-mycotoxin-zearalenone-hinders-candida-albicans-biofilm-formation-and-hyphal-morphogenesis
#13
Satish Kumar Rajasekharan, Jin-Hyung Lee, Yueju Zhao, Jintae Lee
Yeast-mold mycobiota inhabit several natural ecosystems, in which symbiotic relationships drive strategic pathoadaptation. Mycotoxins are metabolites produced by diverse mycotoxigenic fungi as a defense against yeasts, though at times yeasts secrete enzymes that degrade, detoxify, or bio-transform mycotoxins. The present study is focused on the in vitro inhibitory effects of zearalenone (ZEN), a F2 mycotoxin produced by several Fusarium and Gibberella species, on different microbial strains. ZEN exhibited no effect on the planktonic growth or biofilms of several Gram positive and negative bacteria at the tested concentrations...
March 2018: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/29433053/differentiation-of-mixed-soil-borne-fungi-in-the-genus-level-using-infrared-spectroscopy-and-multivariate-analysis
#14
M Huleihel, E Shufan, L Tsror, U Sharaha, I Lapidot, S Mordechai, A Salman
Early detection of soil-borne pathogens, which have a negative effect on almost all agricultural crops, is crucial for effective targeting with the most suitable antifungal agents and thus preventing and/or reducing their severity. They are responsible for severe diseases in various plants, leading in many cases to substantial economic losses. In this study, infrared (IR) spectroscopic method, which is known as sensitive, accurate and rapid, was used to discriminate between different fungi in a mixture was evaluated...
February 7, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29430372/analysis-of-differential-transcript-expression-in-chickpea-during-compatible-and-incompatible-interactions-with-fusarium-oxysporum-f-sp-ciceris-race-4
#15
Parasappa R Saabale, Sunil C Dubey, Kumari Priyanka, Tilak R Sharma
The present study reports the transcriptome analysis of resistance (WR315) and susceptible (JG62) genotypes of chickpea in response to Fusarium oxysporum f. sp. ciceris (Foc) race 4 using the method of suppression subtractive hybridization. Altogether, 162 chickpea-expressed sequence tags (ESTs) were identified from two libraries and analyzed to catalog eight functional categories. These ESTs could be assembled into 18 contigs and 144 singletons with 10 contigs and 68 singletons from compatible and 8 contigs and 70 singletons from incompatible interaction...
February 2018: 3 Biotech
https://www.readbyqxmd.com/read/29430366/morphological-pathological-and-mycotoxicological-variations-among-fusarium-verticillioides-isolated-from-cereals
#16
N Deepa, S Rakesh, M Y Sreenivasa
Among the 194 Fusarium verticillioides isolates screened from 127 cereal samples, 176 were fumonisin producers and others were non-producers. Representative nine Fusarium verticillioides strains along with one reference standard strain MTCC156 were selected to study their morphological, pathological and mycotoxicological variations by conventional and molecular approaches. Fusarium verticillioides strains FVM86, FVM146, FV200 and FVS3 showed significant pathogenicity and also in pigmentation production but varied in fumonisin production...
February 2018: 3 Biotech
https://www.readbyqxmd.com/read/29428818/incidence-of-toxigenic-fungi-and-zearalenone-in-rice-grains-from-brazil
#17
Geovana D Savi, Karim C Piacentini, Liliana O Rocha, Lorena Carnielli-Queiroz, Bianca G Furtado, Rahisa Scussel, Elton Torres Zanoni, Ricardo A Machado-de-Ávila, Benedito Corrêa, Elidio Angioletto
Rice (Oryza sativa L.) is one of the most important food crops worldwide. In Brazil, the southern region is the area with the highest production of rice in the country and also has a high average daily intake of rice by the population. The mycoflora, mainly toxigenic Aspergillus and Fusarium species, the presence of AFB1, DON and ZEA in rice grains, as well as daily intake estimates for the Southern Brazilian population were evaluated. The rice grain samples were collected during the 2017 crop from different harvest periods...
February 3, 2018: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29428797/identification-characterization-and-expression-analysis-of-pigeonpea-mirnas-in-response-to-fusarium-wilt
#18
Khalid Hussain, Kanak Mungikar, Abhijeet Kulkarni, Avinash Kamble
Upon confrontation with unfavourable conditions, plants invoke a very complex set of biochemical and physiological reactions and alter gene expression patterns to combat the situations. MicroRNAs (miRNAs), a class of small non-coding RNA, contribute extensively in regulation of gene expression through translation inhibition or degradation of their target mRNAs during such conditions. Therefore, identification of miRNAs and their targets holds importance in understanding the regulatory network triggered during stress...
February 8, 2018: Gene
https://www.readbyqxmd.com/read/29427428/mycotoxin-biosynthesis-and-central-metabolism-are-two-interlinked-pathways-in-fusarium-graminearum-as-demonstrated-by-the-extensive-metabolic-changes-induced-by-caffeic-acid-exposure
#19
Vessela Atanasova-Penichon, Laurie Legoahec, Stéphane Bernillon, Catherine Deborde, Mickaël Maucourt, Marie-Noelle Verdal-Bonnin, Laetitia Pinson-Gadais, Nadia Ponts, Annick Moing, Florence Richard-Forget
Fusarium graminearum is a major plant pathogen that causes devastating diseases of cereals and produces type B trichothecene mycotoxins (TCTB) in infected grains. A comprehensive understanding of the molecular and biochemical mechanisms underlying the regulation of TCTB biosynthesis is required for improving strategies to control the TCTB contamination of crops and ensuring that these strategies do not favor the production of other toxic metabolites by F. graminearum Elucidation of the association of TCTB biosynthesis with other central and specialized processes was the focus of this study...
February 2, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29426290/transcriptome-profiling-of-two-maize-inbreds-with-distinct-responses-to-gibberella-ear-rot-disease-to-identify-candidate-resistance-genes
#20
Aida Z Kebede, Anne Johnston, Danielle Schneiderman, Whynn Bosnich, Linda J Harris
BACKGROUND: Gibberella ear rot (GER) is one of the most economically important fungal diseases of maize in the temperate zone due to moldy grain contaminated with health threatening mycotoxins. To develop resistant genotypes and control the disease, understanding the host-pathogen interaction is essential. RESULTS: RNA-Seq-derived transcriptome profiles of fungal- and mock-inoculated developing kernel tissues of two maize inbred lines were used to identify differentially expressed transcripts and propose candidate genes mapping within GER resistance quantitative trait loci (QTL)...
February 9, 2018: BMC Genomics
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