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https://www.readbyqxmd.com/read/29454172/toxicity-of-lanthanum-oxide-nanoparticles-to-the-fungus-moniliella-wahieum-y12-t-isolated-from-biodiesel
#1
Lin Zhang, Lingyan Zhou, Qing X Li, Hong Liang, Huaming Qin, Stephen Masutani, Brandon Yoza
Moniliella wahieum Y12 T , isolated from biodiesel was used as a model organism to assess the use of lanthanum oxide (La 2 O 3 ) (60-80 nm) and silver oxide (AgO) (10-40 nm) nanoparticles as potential fungal inhibitors. This is the first study to investigate the use of nanoscale La 2 O 3 as a eukaryotic bio-inhibitor. The AgO nanoparticles were relatively effective at inhibiting the growth of M. wahieum Y12 T . The half maximal effective concentration (EC 50 ) for AgO was 0.012 mg/mL as compared with 4.63 mg/mL of La 2 O 3 ...
February 8, 2018: Chemosphere
https://www.readbyqxmd.com/read/29453699/unusual-intestinal-involvement-by-paracoccidioidomycosis-diagnosed-after-oral-manifestation
#2
Rodrigo Neves-Silva, Patrícia Maria Fernandes, Alan Roger Santos-Silva, Pablo Agustin Vargas, Ricardo de Souza Cavalcante, Marcio Ajudarte Lopes
Paracoccidioidomycosis is a common deep fungus infection in South America, particularly in Brazil. It is acquired through inhalation and primary involvement of lungs. Subsequently, dissemination may occur and oral mucosa is frequently affected and actually, in most of the cases the diagnosis is established because of the oral lesions. Thus, the role of the dentist is fundamental to correct diagnosis. However, the involvement of intestine is rarely reported. The current case describes a 36-year-old man who presented abdominal pain and intestinal constipation, being suspected and then confirmed as paracoccidioidomycosis after already be diagnosed with this disease by a dentist through oral manifestations...
February 16, 2018: Mycopathologia
https://www.readbyqxmd.com/read/29453698/corneal-collagen-cross-linking-for-the-management-of-mycotic-keratitis
#3
Elif Erdem, Ibrahim Inan Harbiyeli, Hazal Boral, Macit Ilkit, Meltem Yagmur, Reha Ersoz
PURPOSE: To evaluate the efficiency of corneal collagen cross-linking (CXL) in addition to topical voriconazole in cases with mycotic keratitis. DESIGN: Retrospective case series in a tertiary university hospital. PARTICIPANTS: CXL was performed on 13 patients with mycotic keratitis who presented poor or no response to topical voriconazole treatment. METHODS: The clinical features, symptoms, treatment results and complications were recorded retrospectively...
February 16, 2018: Mycopathologia
https://www.readbyqxmd.com/read/29453661/maize-water-status-and-physiological-traits-as-affected-by-root-endophytic-fungus-piriformospora-indica-under-combined-drought-and-mechanical-stresses
#4
Fatemeh Hosseini, Mohammad Reza Mosaddeghi, Anthony Roger Dexter, Mozhgan Sepehri
Under combined drought and mechanical stresses, mechanical stress primarily controlled physiological responses of maize. Piriformospora indica mitigated the adverse effects of stresses, and inoculated maize experienced less oxidative damage and had better adaptation to stressful conditions. The objective of this study was to investigate the effect of maize root colonization by an endophytic fungus P. indica on plant water status, physiological traits and root morphology under combined drought and mechanical stresses...
February 16, 2018: Planta
https://www.readbyqxmd.com/read/29453633/comparative-analysis-of-the-mitochondrial-genome-of-the-fungus-colletotrichum-lindemuthianum-the-causal-agent-of-anthracnose-in-common-beans
#5
Casley Borges de Queiroz, Mateus Ferreira Santana, Pedro M Pereira Vidigal, Marisa Vieira de Queiroz
Fungi of the genus Colletotrichum are economically important and are used as models in plant-pathogen interaction studies. In this study, the complete mitochondrial genomes of two Colletotrichum lindemuthianum isolates were sequenced and compared with the mitochondrial genomes of seven species of Colletotrichum. The mitochondrial genome of C. lindemuthianum is a typical circular molecule 37,446 bp (isolate 89 A 2 2-3) and 37,440 bp (isolate 83.501) in length. The difference of six nucleotides between the two genomes is the result of a deletion in the ribosomal protein S3 (rps3) gene in the 83...
February 16, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29453265/integrated-metabolomics-and-morphogenesis-reveals-volatile-signaling-of-the-nematode-trapping-fungus-arthrobotrys-oligospora
#6
Bai-Le Wang, Yong-Hong Chen, Jia-Ning He, Hua-Xi Xue, Ni Yan, Zhi-Jun Zeng, Joan W Bennett, Ke-Qin Zhang, Xue-Mei Niu
The adjustment of metabolic patterns is fundamental to fungal biology and plays vital roles in adaption to diverse ecological challenges. Nematode trapping fungi can switch lifestyles from saprophytic to pathogenic by developing specific trapping devices induced by nematodes to infect their prey as a response to nutrient depletion in nature. However, the chemical identity of the specific fungal metabolites used during the switch remains poorly understood. We hypothesized that these important signal molecules might be volatile in nature...
February 16, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29453263/enzyme-activities-of-two-recombinant-heme-including-peroxidases-tv-dyp1-and-tv-vp2-identified-from-the-secretome-of-trametes-versicolor
#7
Sawsan Amara, Thomas Perrot, David Navarro, Aurélie Deroy, Amine Benkhelfallah, Amani Chalak, Marianne Daou, Didier Chevret, Craig B Faulds, Jean Guy Berrin, Mélanie Morel-Rouhier, Eric Gelhaye, Eric Record
Trametes versicolor is a wood inhabiting Agaricomycete known for its ability to cause strong white rot decay on hardwood and for its high tolerance toward phenolic compounds. The goal of the present work was to give insights on the molecular biology and biochemistry of heme-including class-II and dye-decolorizing peroxidases secreted from this fungus. Proteomic analysis of the secretome of T. versicolor BRFM1218 grown on oak wood revealed a set of 200 secreted proteins among which were a dye-decolorizing peroxidase Tv DyP1 and a versatile peroxidase Tv VP2...
February 16, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29453129/efficient-visible-light-induced-synthesis-of-silver-nanoparticles-by-penicillium-polonicum-ara-10-isolated-from-chetomorpha-antennina-and-its-antibacterial-efficacy-against-salmonella-enterica-serovar-typhimurium
#8
Sahadevan Neethu, Sebastian Jose Midhun, M A Sunil, Soman Soumya, E K Radhakrishnan, Mathew Jyothis
The green synthesis of silver nanoparticles (AgNPs) using biological systems such as fungi has evolved to become an important area of nanobiotechnology. Herein, we report for the first time the light-induced extracellular synthesis of silver nanoparticles using algicolous endophytic fungus Penicillium polonicum ARA 10, isolated from the marine green alga Chetomorpha antennina. Parametric optimization, including the concentration of AgNO 3 , fungal biomass, ratio of cell filtrate and AgNO 3 , pH, reaction time and presence of light, was done for rapid AgNPs production...
February 7, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29452851/elastin-increases-biofilm-and-extracellular-matrix-production-of-aspergillus-fumigatus
#9
Ildnay de Souza Lima Brandão, Heloiza Maria da Silva Oliveira-Moraes, Cristina Maria de Souza Motta, Neiva Tinti de Oliveira, Oliane Maria Correia Magalhães
Aspergillus fumigatus is an opportunistic saprobe fungus that accounts for 90% of cases of pulmonary aspergillosis in immunosuppressed patients and is known for its angiotropism. When it reaches the respiratory tract, A. fumigatus interacts with structural components and blood vessels of the lungs, such as elastin. To understand the effect of this structural component, we examined the effect of elastin on the production and development of the biofilm of A. fumigatus. In RPMI containing 10mg/mL of elastin, a significant increase (absorbance p<0...
February 13, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29452848/optimization-of-liquid-fermentation-conditions-for-biotransformation-zein-by-cordyceps-militaris-202-and-characterization-of-physicochemical-and-functional-properties-of-fermentative-hydrolysates
#10
Shuang Yang, Mingzhu Zheng, Yong Cao, Yanjiao Dong, Sanabil, Jingsheng Liu
Cordyceps militaris 202 is a potential fungus for biotransformation zein, due to its various proteases, high tolerance and viability in nature. In this article, single factor experiment and response surface methodology were applied to optimize the liquid fermentation conditions and improve the ability of biotransformation zein. The optimized fermentation conditions were as follows: inoculum concentration of 19%, volume of liquor of 130mL/500mL and pH of 4.7. Under this condition, the degree of hydrolysis (DH) was 27...
February 13, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29452593/a-review-on-biosynthesis-of-silver-nanoparticles-and-their-biocidal-properties
#11
REVIEW
Khwaja Salahuddin Siddiqi, Azamal Husen, Rifaqat A K Rao
Use of silver and silver salts is as old as human civilization but the fabrication of silver nanoparticles (Ag NPs) has only recently been recognized. They have been specifically used in agriculture and medicine as antibacterial, antifungal and antioxidants. It has been demonstrated that Ag NPs arrest the growth and multiplication of many bacteria such as Bacillus cereus, Staphylococcus aureus, Citrobacter koseri, Salmonella typhii, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumonia, Vibrio parahaemolyticus and fungus Candida albicans by binding Ag/Ag + with the biomolecules present in the microbial cells...
February 16, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29452183/purification-structural-elucidation-and-anti-inflammatory-activity-of-xylosyl-galactofucan-from-armillariella-mellea
#12
Chia-Chuan Chang, Jing-Jy Cheng, I-Jung Lee, Mei-Kuang Lu
A xylosyl galactofucan (AMPS-III) was isolated and identified as a novel anti-inflammatory agent from an edible fungus, Armillariella mellea. The characteristics chemical structure of AMPS-III including the linkages of compositional monosaccharides and structure of the repeat unit were depicted and elucidated by proton, carbon and two-dimensional nuclear magnetic resonance techniques. AMPS-III was chemically proposed to have a partial 4‑O‑xylosylated 1,3-linked α‑d‑galactosyl-interlaced α‑l‑fucan composed of a pentadecasaccharide repeat unit with a molecular mass approximately 13 kDa, as shown below...
February 13, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29451607/decolorization-of-textile-industry-wastewater-in-solid-state-fermentation-with-peach-palm-bactris-gasipaes-residue
#13
J A Chicatto, K T Rainert, M J Gonçalves, C V Helm, D Altmajer-Vaz, L B B Tavares
In this work we have assessed the decolorization of textile effluents throughout their treatment in a solid-state fermentation (SSF) system. SSF assays were conducted with peach-palm (Bactris gasipaes) residue using the white rot fungus Ganoderma lucidum EF 31. The influence of the dye concentration and of the amounts of peach-palm residue and liquid phase on both the discoloration efficiency and enzyme production was studied. According to our results, independently of experimental conditions employed, laccase was the main ligninolytic enzyme produced by G...
February 15, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29451605/evaluation-of-the-frequency-of-candida-spp-in-hospitalized-and-non-hospitalized-subjects
#14
J N Vieira, A M Feijó, M E Bueno, C L Gonçalves, R G Lund, J F Mendes, J P V Villarreal, M M Villela, P S Nascente
The aim of this study was to evaluate the frequency of Candida species between a non-hospitalized and a hospitalized population. For this purpose, samples of saliva were sampled through sterile swabs, moistened in peptone water and rubbed in the oral cavity of 140 individuals, from which, 70 were hospitalized patients from the Medical Clinic of a Teaching Hospital and the other 70 were non-hospitalized subjects. All saliva samples were plated in Sabouraud Dextrose agar added with Chloramphenicol and incubated at 36 °C for 48 hours...
February 15, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29450655/transcription-factors-network-in-root-endosymbiosis-establishment-and-development
#15
REVIEW
Issa Diédhiou, Diaga Diouf
Root endosymbioses are mutualistic interactions between plants and the soil microorganisms (Fungus, Frankia or Rhizobium) that lead to the formation of nitrogen-fixing root nodules and/or arbuscular mycorrhiza. These interactions enable many species to survive in different marginal lands to overcome the nitrogen-and/or phosphorus deficient environment and can potentially reduce the chemical fertilizers used in agriculture which gives them an economic, social and environmental importance. The formation and the development of these structures require the mediation of specific gene products among which the transcription factors play a key role...
February 15, 2018: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/29450146/novel-proteins-from-proteomic-analysis-of-the-trunk-disease-fungus-lasiodiplodia-theobromae-botryosphaeriaceae
#16
Carla C Uranga, Majid Ghassemian, Rufina Hernández-Martínez
Many basic science questions remain regarding protein functions in the pathogen: host interaction, especially in the trunk disease fungi family, the Botryosphaeriaceae, which are a global problem for economically important plants, especially fruiting trees. Proteomics is a highly useful technology for studying protein expression and for discovering novel proteins in unsequenced and poorly annotated organisms. Current fungal proteomics approaches involve 2D SDS-PAGE and extensive, complex, protein extraction methodologies...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29449414/pathogen-trojan-horse-delivers-bioactive-host-protein-to-alter-maize-zea-mays-anther-cell-behavior-in-situ
#17
Karina Van Der Linde, Ljudmilla Timofejeva, Rachel L Egger, Birger Ilau, Reza Hammond, Chong Teng, Blake C Meyers, Gunther Doehlemann, Virginia Walbot
Small proteins are crucial signals during development, host defense, and physiology. Spatiotemporal restricted functions of signaling proteins remain challenging to study in planta. The several month span required to assess transgene expression, particularly in flowers, combined with the uncertainties from transgene position effects and ubiquitous or overexpression, makes monitoring of spatiotemporally restricted signaling proteins lengthy and difficult. This situation could be rectified with a transient assay in which protein deployment is controlled spatially and temporally in planta to assess protein functions, timing, and cellular targets as well as to facilitate rapid mutagenesis to define functional protein domains...
February 15, 2018: Plant Cell
https://www.readbyqxmd.com/read/29449177/cloning-and-expression-of-an-endoglucanase-gene-from-the-thermotolerant-fungus-aspergillus-fumigatus-dbinu-1-in-kluyveromyces-lactis
#18
Budsayachat Rungrattanakasin, Siripong Premjet, Sudarat Thanonkeo, Preekamol Klanrit, Pornthap Thanonkeo
An intronless endoglucanase from thermotolerant Aspergillus fumigatus DBINU-1 was cloned, characterized and expressed in the yeast Kluyveromyces lactis. The full-length open reading frame of the endoglucanase gene from A. fumigatus DBiNU-1, designated Cel7, was 1383 nucleotides in length and encoded a protein of 460 amino acid residues. The predicted molecular weight and the isoelectric point of the A. fumigatus Cel7 gene product were 48.19kDa and 5.03, respectively. A catalytic domain in the N-terminal region and a fungal type cellulose-binding domain/module in the C-terminal region were detected in the predicted polypeptide sequences...
February 3, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29448204/experimental-and-computational-assessment-of-mycosynthesized-cdo-nanoparticles-towards-biomedical-applications
#19
Gowri S, Gopinath K, Arumugam A
The present study reports the biogenic synthesis of Cadmium Oxide Nanoparticles (CdO NPs) using plant pathogenic fungus Nigrospora oryzae culture filtrate. Further, the effect of the NPs on the cancer cell line (HeLa) is explored. The sample was characterized using Thermogravimetric/Differential Thermal (TG/DTA), Powder X-ray Diffraction (XRD), X-ray Photoelectron spectroscopy (XPS), UV-Visible Diffuse Reflectance Spectroscopy (UV-DRS), Field Emission Transmission Electron Microscopy (FE-SEM) with Energy Dispersive X-ray Spectroscopy (EDX), High Resolution Transmission Electron Microscopy (HR-TEM) and Selected Area Electron Diffraction (SAED) analysis...
February 7, 2018: Journal of Photochemistry and Photobiology. B, Biology
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
#20
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
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