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https://www.readbyqxmd.com/read/29883395/development-of-a-highly-sensitive-fcmito-qpcr-assay-for-the-quantification-of-the-toxigenic-fungal-plant-pathogen-fusarium-culmorum
#1
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
https://www.readbyqxmd.com/read/29859885/integrated-control-of-juvenile-ixodes-scapularis-parasitizing-peromyscus-leucopus-in-residential-settings-in-connecticut-united-states
#2
Scott C Williams, Eliza A H Little, Kirby C Stafford, Goudarz Molaei, Megan A Linske
Lyme disease continues to be the most common vector-borne disease in the United States with an estimated 330,000 human cases annually. In the eastern United States, the blacklegged tick, Ixodes scapularis, is the primary vector of the Lyme disease spirochete, Borrelia burgdorferi, and the white-footed mouse, Peromyscus leucopus, is a primary reservoir host. In four residential neighborhoods in Connecticut over three years, we tested the effectiveness of different low-toxicity integrated tick management approaches to control larval and nymphal I...
May 28, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29516864/systematic-approach-to-isolating-batrachochytrium-dendrobatidis
#3
Anthony W Waddle, Marlai Sai, Joshua E Levy, Ghazal Rezaei, Frank van Breukelen, Jef R Jaeger
We developed a protocol for isolating the amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) from anurans. We sampled skin tissues from 2 common treefrogs, Pseudacris regilla and P. triseriata, collected from populations with high infection prevalence. We sampled tissues from 3 anatomical ventral regions (thigh, abdomen, and foot) where the pathogen is thought to concentrate. To mitigate potential bacterial contamination, we used a unique combination of 4 antibiotics. We quantified infections on frogs as zoospore equivalents (ZE) using a swabbing approach combined with quantitative real-time polymerase chain reaction...
March 5, 2018: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/29351737/identifying-genome-wide-immune-gene-variation-underlying-infectious-disease-in-wildlife-populations-a-next-generation-sequencing-approach-in-the-gopher-tortoise
#4
Jean P Elbers, Mary B Brown, Sabrina S Taylor
BACKGROUND: Infectious disease is the single greatest threat to taxa such as amphibians (chytrid fungus), bats (white nose syndrome), Tasmanian devils (devil facial tumor disease), and black-footed ferrets (canine distemper virus, plague). Although understanding the genetic basis to disease susceptibility is important for the long-term persistence of these groups, most research has been limited to major-histocompatibility and Toll-like receptor genes. To better understand the genetic basis of infectious disease susceptibility in a species of conservation concern, we sequenced all known/predicted immune response genes (i...
January 19, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29138622/antimicrobial-efficacy-of-penicillium-amestolkiae-elv609-extract-treated-cotton-fabric-for-diabetic-wound-care
#5
Nur Amiera Syuhada Binti Rozman, Nurhanis Syafiqah Binti Mohd Nor Hamin, Leong Chean Ring, Tan Wen Nee, Mahfuzah Binti Mustapha, Tong Woei Yenn
Diabetes mellitus is a chronic disorder which affects millions of population worldwide. Global estimates published in 2010 reported the world diabetic prevalence as 6.4%, affecting 285 million adults. Foot ulceration and wound infection are major forms of disabilities arising from diabetic diseases. This study was aimed to develop a natural antimicrobial finishing on medical grade textile that meets American Association of Textiles Chemists and Colorists (AATCC) standard. The textile samples were finished with the ethanolic extract of Penicillium amestolkiae elv609, an endophytic fungus isolated from Orthosiphon stamineus Benth (common name: cat's whiskers)...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/28962097/the-first-case-of-cutaneous-phaeohyphomycosis-caused-by-bipolaris-spicifera-in-northern-china-a-case-report
#6
Hongfen Ge, Min Pan, Guanzhi Chen, Xinqiao Liu, Tongxin Shi, Furen Zhang
Phaeohyphomycosis (PHM) is a term used to describe any fungus presenting in tissues with pseudohyphae, hyphae, brown yeast-like cells or a combination of these forms. Sinusitis and skin infections are the most common presentation of subcutaneous PHM caused by the fungus Bipolaris spicifera. However, the majority of cases have so far been encountered in tropical climatic zones. The present study documents a case of subcutaneous PHM caused by infection with Bipolaris spicifera in a 56-year-old Chinese man, who presented with plaque papillomatosis on the left foot...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28458993/chromoblastomycosis-caused-by-rhinocladiella-similis-case-report
#7
Daiane Heidrich, Gloria M González, Danielle M Pagani, Mauricio Ramírez-Castrillón, Maria Lucia Scroferneker
We report a case of chromoblastomycosis in lesions on the chest and foot. Itraconazole was chosen as the initial treatment for this patient, who was followed up for 8 months before becoming noncompliant. The pathogenic fungal species was identified as Rhinocladiella similis by ITS region sequencing. In vitro analyses indicate that the fungus was sensitive to posaconazole and itraconazole. This report presents R. similis as a new agent of chromoblastomycosis and raises the hypothesis that this species could be more resistant to some antifungals than R...
June 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28432932/surveillance-of-vittaforma-corneae-in-hot-springs-by-a-small-volume-procedure
#8
Jung-Sheng Chen, Tsui-Kang Hsu, Bing-Mu Hsu, Tung-Yi Huang, Yu-Li Huang, Men-Fang Shaio, Dar-Der Ji
Vittaforma corneae is an obligate intracellular fungus and can cause human ocular microsporidiosis. Although accumulating reports of V. corneae causing keratoconjunctivitis in both healthy and immunocompromised persons have been published, little is known about the organism's occurrence in aquatic environments. Limitations in detection sensitivity have meant a large sampling volume is required to detect the pathogen up to now, which is problematic. A recent study in Taiwan has shown that some individuals suffering from microsporidial keratitis (MK) were infected after exposure to the pathogen at a hot spring...
July 1, 2017: Water Research
https://www.readbyqxmd.com/read/28322011/fcrav2-a-gene-with-a-rogdi-domain-involved-in-fusarium-head-blight-and-crown-rot-on-durum-wheat-caused-by-fusarium-culmorum
#9
Francesca Spanu, Barbara Scherm, Irene Camboni, Virgilio Balmas, Giovanna Pani, Safa Oufensou, Nicolo' Macciotta, Matias Pasquali, Quirico Migheli
Fusarium culmorum is a soil-borne fungal pathogen which causes foot and root rot and Fusarium head blight on small-grain cereals, in particular wheat and barley. It causes significant yield and quality losses and results in the contamination of kernels with type B trichothecene mycotoxins. Our knowledge of the pathogenicity factors of this fungus is still limited. A transposon tagging approach based on the mimp1/impala double-component system has allowed us to select a mutant altered in multiple metabolic and morphological processes, trichothecene production and virulence...
March 2018: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28299934/antibacterial-composite-film-based-triboelectric-nanogenerator-for-harvesting-walking-energy
#10
Guang Qin Gu, Chang Bao Han, Jing Jing Tian, Cun Xin Lu, Chuan He, Tao Jiang, Zhou Li, Zhong Lin Wang
As a green and eco-friendly technology, triboelectric nanogenerator (TENG) can harvest energy from human motion to generate electricity, so TENGs have been widely applied in wearable electronic devices to replace traditional batteries. However, the surface of these TENGs is easily contaminated and breeds bacteria, which is a threat to human health. Here, we report an antibacterial composite film-based triboelectric nanogenerator (ACF-TENG) that uses Ag-exchanged zeolite (Ag-zeolite) and polypropylene (PP) composite film as the triboelectric layer...
March 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28272067/prompt-diagnosis-of-scedosporium-apiospermum-soft-tissue-infection-life-saving-in-a-renal-transplant-recipient
#11
R Ghosh, P Mishra, P K Maiti, A Debnandi
Scedosporium apiospermum, an ubiquitous filamentous fungus, a known cause of mycetoma, is emerging as an opportunistic pathogen in immunocompromised individuals. We report a case of painful foot abscess in a renal allograft recipient on immunosuppressive therapy, which was clinically diagnosed as a suppurative bacterial abscess. Pus was aspirated, which showed septate, branching hyphal elements and culture on Sabouraud's dextrose agar yielded S. apiospermum, which was identified based on its macroscopic and microscopic features...
July 2017: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/28184247/a-versatile-2a-peptide-based-bicistronic-protein-expressing-platform-for-the-industrial-cellulase-producing-fungus-trichoderma-reesei
#12
Venkataramanan Subramanian, Logan A Schuster, Kyle T Moore, Larry E Taylor, John O Baker, Todd A Vander Wall, Jeffrey G Linger, Michael E Himmel, Stephen R Decker
BACKGROUND: The industrial workhorse fungus, Trichoderma reesei, is typically exploited for its ability to produce cellulase enzymes, whereas use of this fungus for over-expression of other proteins (homologous and heterologous) is still very limited. Identifying transformants expressing target protein is a tedious task due to low transformation efficiency, combined with highly variable expression levels between transformants. Routine methods for identification include PCR-based analysis, western blotting, or crude activity screening, all of which are time-consuming techniques...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28018093/clinico-radiological-improvement-in-an-immunocompetent-patient-presented-with-scedosporium-apiospermum-osteomyelitis
#13
Rahul Mohan, T S Gopakumar
Scedosporium apiospermum is frequently found as a saprophyte in soil, sewage and contaminated water. Its manifestations in immunocompetent patients are usually localised and in immunodeficient patients, it causes invasive systemic diseases. We are reporting the case of a 40-year-old male, who presented with pain, oedema and multiple discharging sinuses over the lateral aspect of the left foot with history of thorn prick. On examination, there were multiple active sinuses with tenderness and local rise in temperature...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/27995742/tracking-the-amphibian-pathogens-batrachochytrium-dendrobatidis-and-batrachochytrium-salamandrivorans-using-a-highly-specific-monoclonal-antibody-and-lateral-flow-technology
#14
Michael J Dillon, Andrew E Bowkett, Michael J Bungard, Katie M Beckman, Michelle F O'Brien, Kieran Bates, Matthew C Fisher, Jamie R Stevens, Christopher R Thornton
The fungus Batrachochytrium dendrobatidis (Bd) causes chytridiomycosis, a lethal epizootic disease of amphibians. Rapid identification of the pathogen and biosecurity is essential to prevent its spread, but current laboratory-based tests are time-consuming and require specialist equipment. Here, we describe the generation of an IgM monoclonal antibody (mAb), 5C4, specific to Bd as well as the related salamander and newt pathogen Batrachochytrium salamandrivorans (Bsal). The mAb, which binds to a glycoprotein antigen present on the surface of zoospores, sporangia and zoosporangia, was used to develop a lateral-flow assay (LFA) for rapid (15 min) detection of the pathogens...
March 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/27822542/rna-sequencing-based-genome-reannotation-of-the-dermatophyte-arthroderma-benhamiae-and-characterization-of-its-secretome-and-whole-gene-expression-profile-during-infection
#15
Van Du T Tran, Niccolò De Coi, Marc Feuermann, Emanuel Schmid-Siegert, Elena-Tatiana Băguţ, Bernard Mignon, Patrice Waridel, Corinne Peter, Sylvain Pradervand, Marco Pagni, Michel Monod
Dermatophytes are the most common agents of superficial mycoses in humans and animals. The aim of the present investigation was to systematically identify the extracellular, possibly secreted, proteins that are putative virulence factors and antigenic molecules of dermatophytes. A complete gene expression profile of Arthroderma benhamiae was obtained during infection of its natural host (guinea pig) using RNA sequencing (RNA-seq) technology. This profile was completed with those of the fungus cultivated in vitro in two media containing either keratin or soy meal protein as the sole source of nitrogen and in Sabouraud medium...
July 2016: MSystems
https://www.readbyqxmd.com/read/27726899/first-case-of-chromoblastomycosis-due-to-phoma-insulana
#16
Francisca Hernández-Hernández, Jaime Vargas-Arzola, Oliver Pedro Ríos-Cruz, Erika Córdova-Martínez, Patricia Manzano-Gayosso, Aristeo Segura-Salvador
Chromoblastomycosis is a chronic infection, caused by pigmented fungi affecting skin and subcutaneous tissues characterized by verrucous nodules or plaques. Fonsecaea pedrosoi and Cladophialophora carrionii are the prevalent agents in the endemic areas. Phoma is an uncommon agent of human infection and involved mainly with phaeohyphomycosis cases. The case of a patient with a history of laceration in foot followed by verrucous aspect and scaly lesions, which had evolved for 27 years is presented. On physical examination disease was clinically compatible with chromoblastomycosis and the microscopic examination of scales showed fumagoid cells...
February 2018: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/27340103/discovery-of-antifungal-constituents-from-the-miao-medicinal-plant-isodon-flavidus
#17
Ji-Xin Li, Qi-Ji Li, Yi-Fu Guan, Xun Song, Ya-Hua Liu, Jing-Jie Zhang, Wan-Fei Li, Jiang Du, Min Zhu, Jeffrey A Banas, Xiao-Nian Li, Lu-Tai Pan, Hong-Jie Zhang
ETHNOPHARMACOLOGICAL RELEVANCE: Leigong Mountain is an area in the Southwest of China where there is a high incidence rate of athlete's foot, but the Miao people, a Chinese minority who reside in this mountainous area have suffered less from this disease due to their use of the herbal medicine Isodon flavidus (Hand.-Mazz.) H. Hara. AIM OF THE STUDY: The present study is to identify the active chemical constituents responsible for antifungal effects of the folk medicine plant...
September 15, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/26976880/disseminated-histoplasmosis-with-skin-lesions-and-osteomyelitis-in-a-patient-from-the-philippines
#18
Marwan M Azar, Maricar F Malinis
Histoplasmosis, caused by the dimorphic fungus Histoplasma capsulatum, is a disease of protean manifestations and of global distribution. Although increasingly reported in Asia, there are few reports from the Philippines. Here, we describe a case of microbiologically diagnosed histoplasmosis, probably acquired from the Philippines, in a returning traveler who presented with a right foot wound and papular rash. The final diagnosis was disseminated histoplasmosis with cutaneous and bone involvement, both unusual manifestations of the disease...
July 6, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/26860841/investigating-the-compatibility-of-the-biocontrol-agent-clonostachys-rosea-ik726-with-prodigiosin-producing-serratia-rubidaea-s55-and-phenazine-producing-pseudomonas-chlororaphis-toza7
#19
Nathalie N Kamou, Mukesh Dubey, Georgios Tzelepis, Georgios Menexes, Emmanouil N Papadakis, Magnus Karlsson, Anastasia L Lagopodi, Dan Funck Jensen
This study was carried out to assess the compatibility of the biocontrol fungus Clonostachys rosea IK726 with the phenazine-producing Pseudomonas chlororaphis ToZa7 or with the prodigiosin-producing Serratia rubidaea S55 against Fusarium oxysporum f. sp. radicis-lycopersici. The pathogen was inhibited by both strains in vitro, whereas C. rosea displayed high tolerance to S. rubidaea but not to P. chlororaphis. We hypothesized that this could be attributed to the ATP-binding cassette (ABC) proteins. The results of the reverse transcription quantitative PCR showed an induction of seven genes (abcB1, abcB20, abcB26, abcC12, abcC12, abcG8 and abcG25) from subfamilies B, C and G...
May 2016: Archives of Microbiology
https://www.readbyqxmd.com/read/26738840/mycetoma-a-unique-neglected-tropical-disease
#20
REVIEW
Eduard E Zijlstra, Wendy W J van de Sande, Oliverio Welsh, El Sheikh Mahgoub, Michael Goodfellow, Ahmed H Fahal
Mycetoma can be caused by bacteria (actinomycetoma) or fungi (eumycetoma) and typically affects poor communities in remote areas. It is an infection of subcutaneous tissues resulting in mass and sinus formation and a discharge that contains grains. The lesion is usually on the foot but all parts of the body can be affected. The causative microorganisms probably enter the body by a thorn prick or other lesions of the skin. Mycetoma has a worldwide distribution but is restricted to specific climate zones. Microbiological diagnosis and characterisation of the exact organism causing mycetoma is difficult; no reliable serological test exists but molecular techniques to identify relevant antigens have shown promise...
January 2016: Lancet Infectious Diseases
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