keyword
MENU ▼
Read by QxMD icon Read
search

Curvularia

keyword
https://www.readbyqxmd.com/read/28417063/melanized-fungus-as-an-epidural-abscess-a-diagnostic-and-therapeutic-challenge
#1
Adesh Shrivastava, Karuna Tadepalli, Garima Goel, Kajal Gupta, Pradeep Kumar Gupta
Curvularia a dematiaceous fungus is ubiquitously found in soil around the world. We report an epidural abscess due to Curvularia lunata in a 48 years male farmer who underwent decompressive laminectomy as primary modality of treatment followed by isolation, identification and confirmation of the isolate from tissue by ITS sequencing. Antifungal therapy with voriconazole and amphotericin B for 3 and 2 weeks respectively improved patient's condition and is presently on regular follow up with no sequelae since last 7 months...
June 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28393907/involvement-of-a-velvet-protein-clvelb-in-the-regulation-of-vegetative-differentiation-oxidative-stress-response-secondary-metabolism-and-virulence-in-curvularia-lunata
#2
Jin-Xin Gao, Chuan-Jin Yu, Meng Wang, Jia-Nan Sun, Ya-Qian Li, Jie Chen
The ortholog of Aspergillus nidulans VelB, which is known as ClVelB, was studied to gain a broader insight into the functions of a velvet protein in Curvularia lunata. With the expected common and specific functions of ClVelB, the deletion of clvelB results in similar though not identical phenotypes. The pathogenicity assays revealed that ΔClVelB was impaired in colonizing the host tissue, which corresponds to the finding that ClVelB controls the production of conidia and the methyl 5-(hydroxymethyl) furan-2-carboxylate toxin in C...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28389086/developing-eco-friendly-biofungicide-for-the-management-of-major-seed-borne-diseases-of-rice-and-assessing-their-physical-stability-and-storage-life
#3
Ramasamy Naveenkumar, Arjunan Muthukumar, Ganesan Sangeetha, Ramanathan Mohanapriya
Three plant oils (Cymbopogon citratus, Cymbopogon martini, and Pelargonium graveolens) were developed as EC formulations and tested for their physical stabilities. EC formulations (10EC, 20EC and 30EC) of C. citratus, C. martini and P. graveolens had emulsion stability, spontaneity property, heat and cold stability. EC formulated plant oils were screened against the major seed borne fungi of rice such as Curvularia lunata, Fusarium moniliforme, Bipolaris oryzae, and Sarocladium oryzae. The level of inhibition varied among the concentrations of EC formulations...
April 4, 2017: Comptes Rendus Biologies
https://www.readbyqxmd.com/read/28383602/fungal-contamination-and-disinfection-of-dental-chairs-teresina-piaui-brazil
#4
Antônio Iv de Almondes, Jhonatta Op de Araújo, Larissa Mendes de Sirqueira Amaral, Renandro C Reis, Jhonatas Cs Porto, João Batista Teles, Thiago L Monte, Iraci de Ms Noleto, Tanit C Santos, Ivonizete P Ribeiro, Mitra Mobin
The aim of this study was to analyze fungal contamination on dental chairs at the clinic of a Higher Education Institution in TeresinaPI, Brazil, and to evaluate the effectiveness of different disinfectants: 70% alcohol and 1% sodium hypochlorite. We selected the five sites with most contact between patient and chair: headrest, backrest, armrests, seat and foot rest. Samples were collected from these sites on 14 chairs and inoculated in agar Sabouraud culture medium containing chloramphenicol. Pathogenic fungi were isolated from all sampling sites on the chairs...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28361537/integration-of-chemical-genetic-and-bioinformatic-approaches-delineates-fungal-polyketide-peptide-hybrid-biosynthesis
#5
Mamoru Yokoyama, Yuichiro Hirayama, Tsuyoshi Yamamoto, Shinji Kishimoto, Yuta Tsunematsu, Kenji Watanabe
To identify natural products and their associated biosynthetic genes from underutilized, difficult-to-manipulate microbes, chemical screening and bioinformatic analysis were employed to identify secondary metabolites and a potentially associated biosynthetic gene cluster. Subsequently, a heterologous expression system was used to confirm the identity of the gene cluster and the proposed biosynthetic mechanism. This approach successfully identified the curvupallide and spirostaphylotrichin biosynthetic pathways in endophytic fungus Curvularia pallescens and the short-chain pyranonigrin biosynthetic pathway in Aspergillus niger...
March 31, 2017: Organic Letters
https://www.readbyqxmd.com/read/28353091/diversity-of-culturable-fungi-inhabiting-petroleum-contaminated-soils-in-southern-iran
#6
Elham Mohammadian, Mahdi Arzanlou, Asadollah Babai-Ahari
The present study was aimed at characterising species diversity of fungi inhabiting petroleum-contaminated soils of oil fields in a southern region of Iran. Two different techniques were used for fungal isolation including enrichment on atmospheres of phenolic hydrocarbons and crude oil as substrate. Phylogenetic analysis of the internal transcribed spacer of ribosomal DNA was used for taxonomic identification with additional information from the β-tubulin gene for selected taxa. Overall, 183 strains from 14 genera and five orders were obtained: Pleosporales (Alternaria, Curvularia, Stemphylium, Ulocladium), Chaetothyriales (Exophiala), Eurotiales (Aspergillus), Hypocreales (Acremonium, Emericellopsis, Sarocladium, Stachybotrys, Fusarium, Trichoderma, Beauveria), and Capnodiales (Cladosporium)...
March 28, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28306602/cure-rate-of-fungal-keratitis-with-antibacterial-therapy
#7
Alice Y Matoba, Ryan Barrett, Anna E Lehmann
PURPOSE: To study the cure rate of fungal keratitis with moxifloxacin 0.3% monotherapy. METHODS: A retrospective review of patients with culture-proven fungal keratitis who initially received moxifloxacin 0.3% monotherapy was performed. RESULTS: Eleven patients with culture-proven fungal keratitis were initially treated with moxifloxacin. One case each of Curvularia and Alternaria keratitis resolved with moxifloxacin monotherapy (18%). CONCLUSIONS: Moxifloxacin may have a significant clinical therapeutic effect in a subset of patients with fungal keratitis...
May 2017: Cornea
https://www.readbyqxmd.com/read/28248430/reconstitution-of-vanadium-haloperoxidase-s-catalytic-activity-by-boric-acid-towards-a-potential-biocatalytic-role-of-boron
#8
Filipe Natalio, Stefanie Wiese, Wolfgang Brandt, Ludger Wessjohann
Boron's unusual properties inspired major advances in chemistry. In nature, the existence and importance of boron has been fairly explored (e.g. bacterial signaling, plant development) but its role as biological catalyst was never reported. Here, we show that boric acid [B(OH)3 ] can restore chloroperoxidase activity of Curvularia inaequalis recombinant apo-haloperoxidase's (HPO) in the presence of hydrogen peroxide and chloride ions. Molecular modeling and semi-empirical PM7 calculations support a thermodynamically highly favored (bio)catalytic mechanism similarly to vanadium haloperoxidases (V-HPO) in which [B(OH)3 ] is assumedly located in apo-HPO's active site and a monoperoxyborate [B(OH)3 (OOH)(-) ] intermediate is formed and stabilized by interaction with specific active site amino acids leading ultimately to the formation of HOCl...
March 1, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28204952/a-preliminary-report-of-indigenous-fungal-isolates-from-contaminated-municipal-solid-waste-site-in-india
#9
Abhishek Kumar Awasthi, Akhilesh Kumar Pandey, Jamaluddin Khan
Municipal solid waste (MSW) containing harmful substances is a major concern in waste management and can cause adverse effects on diversity of fungi in soil. The main objective was to evaluate the fungal diversity inhabiting in the soil nearby MSW disposal site. The fungal strains were isolated in potato dextrose agar (PDA), media at temperatures 28 ± 1 °C by using standard serial dilution pour plate method, and appeared fungal colonies identified based on morphological characteristics. The overall most fungal diversity was found in soil sample collected from S5, followed by S4, S3, S1, and least in S2 site...
February 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28195475/metabolites-from-the-endophytic-fungus-curvularia-sp-m12-act-as-motility-inhibitors-against-phytophthora-capsici-zoospores
#10
Muhammad Abdul Mojid Mondol, Jannatul Farthouse, Mohammad Tofazzal Islam, Anja Schüffler, Hartmut Laatsch
The endophytic fungus Curvularia sp., strain M12, was isolated from a leaf of the medicinal plant Murraya koenigii and cultured on rice medium followed by chemical screening of the culture extract. Chromatographic analysis led to the isolation of four new compounds, murranofuran A (1), murranolide A (2), murranopyrone (3a), and murranoic acid A (4a), along with six known metabolites, N-(2-hydroxy-6-methoxyphenyl)acetamide (5), curvularin (6), (S)-dehydrocurvularin (7), pyrenolide A (8), modiolide A (9), and 8-hydroxy-6-methoxy-3-methylisocoumarin (10)...
February 24, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28049918/trialkylamine-derivatives-containing-a-triazole-moiety-as-promising-ergosterol-biosynthesis-inhibitor-design-synthesis-and-antifungal-activity
#11
Guoqing Sui, Wen Zhang, Kun Zhou, Yulin Li, Bingyu Zhang, Dan Xu, Yong Zou, Wenming Zhou
As a part of our continuing research on amine derivative antifungal agents, 19 novel target compounds containing 1,2,4-triazole and tertiary amine moieties were designed and synthesized, and their in vitro antifungal activities against six phytopathogenic fungi (Magnaporthe grisea, Alternaria solani, Fusarium solani, Curvularia lunata, A. alternata, F. graminearum) were assayed. All target compounds were elucidated by means of (1)H-NMR, (13)C-NMR, high resolution (HR)-MS, and IR analysis. The results showed that most of the derivatives exhibited obvious activity against each of the fungi at 50 µg/mL...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28029060/a-new-androstanoid-metabolite-from-a-soil-fungus-curvularia-borreriae-strain-hs-fg-237
#12
Li-Fei Liu, Hui Zhang, Huan Qi, Xiao-Ming Wang, Ji-Dong Wang, Gui-Shan Tan
A new androstanoid metabolite, 4α-methyl-9α-methoxyandrosta-8,15-diene-3,17-dione (1), was isolated from a soil fungus Curvularia borreriae (Pleosporaceae) strain HS-FG-237. Its structure was determined by extensive spectroscopic and X-ray diffraction analyses. Compound 1 exhibited poor cytotoxicity toward HCT-116 cells by CCK-8 assay and weak anti-inflammatory activity in an ANA-1 murine macrophages model.
May 2017: Natural Product Research
https://www.readbyqxmd.com/read/27998732/pathogenesis-of-microbial-keratitis
#13
REVIEW
Sahreena Lakhundi, Ruqaiyyah Siddiqui, Naveed Ahmed Khan
Microbial keratitis is a sight-threatening ocular infection caused by bacteria, fungi, and protist pathogens. Epithelial defects and injuries are key predisposing factors making the eye susceptible to corneal pathogens. Among bacterial pathogens, the most common agents responsible for keratitis include Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus pneumonia and Serratia species. Fungal agents of corneal infections include both filamentous as well as yeast, including Fusarium, Aspergillus, Phaeohyphomycetes, Curvularia, Paecilomyces, Scedosporium and Candida species, while in protists, Acanthamoeba spp...
March 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27920761/diversity-and-distribution-of-phenol-oxidase-producing-fungi-from-soda-lake-and-description-of-curvularia-lonarensis-sp-nov
#14
Rahul Sharma, Om Prakash, Mahesh S Sonawane, Yogesh Nimonkar, Priyanka B Golellu, Rohit Sharma
Soda lake is hyper alkaline and saline habitat located in closed craters with high evaporation rate. In current study fungal diversity from water and sediment samples of a soda lake (Lonar lake) located in Buldhana district of Maharashtra, India was investigated using extensive culturomics approach and mimicking the natural conditions of Lonar lake in culture media. A total of 104 diverse isolates of extremophilic fungi were recovered from this study and phylogenetically characterized by internal transcribed spacer (ITS) region sequencing...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27906500/phylogenetic-studies-gene-cluster-analysis-and-enzymatic-reaction-support-anthrahydroquinone-reduction-as-the-physiological-function-of-fungal-17%C3%AE-hydroxysteroid-dehydrogenase
#15
Leon Fürtges, David Conradt, Michael A Schätzle, Shailesh Kumar Singh, Nada Kraševec, Tea Lanišnik Rižner, Michael Müller, Syed Masood Husain
17β-Hydroxysteroid dehydrogenase (17β-HSDcl) from the filamentous fungus Curvularia lunata (teleomorph Cochliobolus lunatus) catalyzes NADP(H)-dependent oxidoreductions of androgens and estrogens. Despite detailed biochemical and structural characterization of 17β-HSDcl, its physiological function remains unknown. On the basis of amino acid sequence alignment, phylogenetic studies, and the recent identification of the physiological substrates of the homologous MdpC from Aspergillus nidulans and AflM from Aspergillus parasiticus, we propose an anthrahydroquinone as the physiological substrate of 17β-HSDcl...
January 3, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/27904208/verrucous-onychomycosis-caused-by-curvularia-in-a-patient-with-congenital-pterygium
#16
Mary Vineetha, Seena Palakkal, K Sobhanakumari, M I Celine, V Letha
A 57 year healthy farmer with congenital nail pterygium presented with a verrucous growth on nail bed since 8 months. He was not diabetic and HIV rapid card test negative. Our clinical diagnosis was chromoblastomycosis but culture showed growth of curvularia species on two occasions and histopathology showed hyphal and yeast forms of the pigmented fungus. After excision biopsy patient was started on oral itraconazole. This case is reported due to rarity of verrucous cutaneous lesions caused by curvularia in immunocompetent individuals...
November 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/27890967/airborne-pollen-and-fungal-spores-in-garki-abuja-north-central-nigeria
#17
Dimphna Nneka Ezike, Catherine V Nnamani, Oluwatoyin T Ogundipe, Olushola H Adekanmbi
The ambient atmosphere is dominated with pollen and spores, which trigger allergic reactions and diseases and impact negatively on human health. A survey of pollen and fungal spores constituents of the atmosphere of Garki, Abuja (North-Central Nigeria) was carried out for 1 year (June 1, 2011-May 31, 2012). The aim of the study was to determine the prevalence and abundance of pollen and fungal spores in the atmosphere and their relationship with meteorological parameters. Airborne samples were trapped using modified Tauber-like pollen trap, and the recipient solutions were subjected to acetolysis...
2016: Aerobiologia
https://www.readbyqxmd.com/read/27833296/three-rare-cases-of-cutaneous-phaeohyphomycosis
#18
Aditi Chhonkar, Deepti Kataria, Swagata Tambe, Chitra S Nayak
Phaeohyphomycosis is a chronic infectious condition caused by dematiaceous fungi which usually involve the skin and subcutaneous tissue. Subcutaneous phaeohyphomycosis is characterised by papulonodules, verrucous, hyperkeratotic or ulcerated plaques, cysts, abscesses, pyogranuloma, non-healing ulcers or sinuses. In India, commonly associated genera are Exophiala, Phialophora, Cladosporium, Curvularia, Fonsecaea and Alternaria. This condition involves the presence of brown-walled hyphal structures in the dermis and epidermis...
May 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/27830829/cellulase-from-trichoderma-harzianum-interacts-with-roots-and-triggers-induced-systemic-resistance-to-foliar-disease-in-maize
#19
Kandasamy Saravanakumar, Lili Fan, Kehe Fu, Chuanjin Yu, Meng Wang, Hai Xia, Jianan Sun, Yaqian Li, Jie Chen
Trichoderma harzianum is well known to exhibit induced systemic resistance (ISR) to Curvularia leaf spot. We previously reported that a C6 zinc finger protein (Thc6) is responsible for a major contribution to the ISR to the leaf disease, but the types of effectors and the signals mediated by Thc6 from Trichoderma are unclear. In this work, we demonstrated that two hydrolases, Thph1 and Thph2, from T. harzianum were regulated by Thc6. Furthermore, an electrophoretic mobility shift assay (EMSA) study revealed that Thc6 regulated mRNA expression by binding to GGCTAA and GGCTAAA in the promoters of the Thph1 and Thph2 genes, respectively...
November 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27801779/prevalence-characterization-and-mycotoxin-production-ability-of-fusarium-species-on-korean-adlay-coix-lacrymal-jobi-l-seeds
#20
Tae Jin An, Kyu Seop Shin, Narayan Chandra Paul, Young Guk Kim, Seon Woo Cha, Yuseok Moon, Seung Hun Yu, Sang-Keun Oh
Adlay seed samples were collected from three adlay growing regions (Yeoncheon, Hwasun, and Eumseong region) in Korea during 2012. Among all the samples collected, 400 seeds were tested for fungal occurrence by standard blotter and test tube agar methods and different taxonomic groups of fungal genera were detected. The most predominant fungal genera encountered were Fusarium, Phoma, Alternaria, Cladosporium, Curvularia, Cochliobolus and Leptosphaerulina. Fusarium species accounted for 45.6% of all species found; and, with phylogenetic analysis based on the combined sequences of two protein coding genes (EF-1α and β-tubulin), 10 Fusarium species were characterized namely, F...
October 27, 2016: Toxins
keyword
keyword
98375
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"