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https://www.readbyqxmd.com/read/28339467/a-non-canonical-rna-degradation-pathway-suppresses-rnai-dependent-epimutations-in-the-human-fungal-pathogen-mucor-circinelloides
#1
Silvia Calo, Francisco E Nicolás, Soo Chan Lee, Ana Vila, Maria Cervantes, Santiago Torres-Martinez, Rosa M Ruiz-Vazquez, Maria E Cardenas, Joseph Heitman
Mucorales are a group of basal fungi that includes the casual agents of the human emerging disease mucormycosis. Recent studies revealed that these pathogens activate an RNAi-based pathway to rapidly generate drug-resistant epimutant strains when exposed to stressful compounds such as the antifungal drug FK506. To elucidate the molecular mechanism of this epimutation pathway, we performed a genetic analysis in Mucor circinelloides that revealed an inhibitory role for the non-canonical RdRP-dependent Dicer-independent silencing pathway, which is an RNAi-based mechanism involved in mRNA degradation that was recently identified...
March 24, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28330225/metagenomics-analysis-of-microbial-communities-associated-with-a-traditional-rice-wine-starter-culture-xaj-pitha-of-assam-india
#2
Sudipta Sankar Bora, Jyotshna Keot, Saurav Das, Kishore Sarma, Madhumita Barooah
This is the first report on the microbial diversity of xaj-pitha, a rice wine fermentation starter culture through a metagenomics approach involving Illumine-based whole genome shotgun (WGS) sequencing method. Metagenomic DNA was extracted from rice wine starter culture concocted by Ahom community of Assam and analyzed using a MiSeq(®) System. A total of 2,78,231 contigs, with an average read length of 640.13 bp, were obtained. Data obtained from the use of several taxonomic profiling tools were compared with previously reported microbial diversity studies through the culture-dependent and culture-independent method...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28316424/ovicidal-effect-of-chitinase-and-protease-enzymes-produced-by-soil-fungi-on-the-camel-tick-hyalomma-dromedarii-eggs-acari-ixodidae
#3
Salwa M Habeeb, Heba M Ashry, Moataza M Saad
The aim of this study was to evaluate the effect of chitinase and protease enzymes produced by environmentally safe soil Fungi; Aspergillus sp. NRC 4/5H; Mucor sp. NRC 5; Trichoderma sp. NRC 4/56; Aspergillus sojae; Mucor ranosisinus; Aspergillus oryzae on embryo development of the camel tick Hyalomma dromedarii eggs. The experiment was carried out on the 7 day aged eggs. Concentrations of the chitinase and protease crude enzymes [1:1, 1:2, 1:3, 1:4 and 1:5 (v/v)] were prepared from six stock solutions whose concentrations were 5 units/ml each...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28303252/evaluation-of-the-biocontrol-potential-of-purpureocillium-lilacinum-qlp12-against-verticillium-dahliae-in-eggplant
#4
Xingjie Lan, Jing Zhang, Zhaofeng Zong, Qing Ma, Yang Wang
A fungus with broad spectrum antifungal activity was isolated from the soil in Qinling Mountain, Shaanxi Province, in China. The fungus was identified as Purpureocillium lilacinum based on ITS rDNA gene analysis. The strain, coded as QLP12, showed high inhibition activity on fungal mycelium growth in vitro, especially to Mucor piriformis, Trichothecium roseum, Rhizoctonia solani, and Verticillium dahliae, and its potential for biocontrol efficacy of eggplant. Verticillium wilt disease caused by Verticillium dahliae among 10 fungal species tested was explored...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28276198/anthropogenic-impact-on-environmental-filamentous-fungi-communities-along-the-mediterranean-littoral
#5
Mohammed Hashim Al-Yasiri, Anne-Cécile Normand, Jean-François Mauffrey, Stéphane Ranque
We hypothesised that anthropogenic influences impact the filamentous fungi community structure and that particular species or species patterns might serve as markers to characterise ecosystems. This study aimed to describe the filamentous fungi community structure in various biotopes along the Mediterranean shore that were exposed to various levels of anthropogenic influence. We sampled filamentous fungi from yellow-legged gull faecal samples at five study sites along the Mediterranean littoral in southern France...
March 9, 2017: Mycoses
https://www.readbyqxmd.com/read/28275659/dataset-of-differentially-accumulated-proteins-in-mucor-strains-representative-of-four-species-grown-on-synthetic-potato-dextrose-agar-medium-and-a-cheese-mimicking-medium
#6
Stéphanie Morin-Sardin, Jean-Luc Jany, Sébastien Artigaud, Vianney Pichereau, Benoît Bernay, Emmanuel Coton, Stéphanie Madec
The data presented are associated with the "Proteomic analysis of the adaptative response of Mucor spp. to cheese environment" (Morin-Sardin et al., 2016) article [1]. Mucor metabolism is poorly documented in the literature and while morphology and growth behavior suggest potential adaptation to cheese for some strains, no adaptation markers to cheese environment have been identified for this genus. To establish the possible existence of metabolic functions related to cheese adaptation, we used a gel based 2-DE proteomic approach coupled to LC-MS/MS to analyze three strains from species known or proposed to have a positive or negative role in cheese production as well as a strain from a non-related cheese-species...
April 2017: Data in Brief
https://www.readbyqxmd.com/read/28251531/enhanced-bioremediation-of-lead-contaminated-soil-by-solanum-nigrum-l-with-mucor-circinelloides
#7
Liqun Sun, Xiufeng Cao, Min Li, Xu Zhang, Xinxin Li, Zhaojie Cui
Strain selected from mine tailings in Anshan for Pb bioremediation was characterized at the genetic level by internal transcribed spacer (ITS) sequencing. Results revealed that the strain belongs to Mucor circinelloides. Bioremediation of lead-contaminated soil was conducted using Solanum nigrum L. combined with M. circinelloides. The removal efficacy was in the order microbial/phytoremediation > phytoremediation > microbial remediation > control. The bioremediation rates were 58.6, 47...
March 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28242552/enzymatic-and-solid-phase-synthesis-of-new-donepezil-based-l-and-d-glutamic-acid-derivatives-and-their-pharmacological-evaluation-in-models-related-to-alzheimer-s-disease-and-cerebral-ischemia
#8
Leticia Monjas, Mariana P Arce, Rafael León, Javier Egea, Concepción Pérez, Mercedes Villarroya, Manuela G López, Carmen Gil, Santiago Conde, María Isabel Rodríguez-Franco
Previously, we have described N-Bz-L-Glu[NH-2-(1-benzylpiperidin-4-yl)ethyl]-O-nHex (IQM9.21, L-1) as an interesting multifunctional neuroprotective compound for the potential treatment of neurodegenerative diseases. Here, we describe new derivatives and different synthetic routes, such as chemoenzymatic and solid-phase synthesis, aiming to improve the previously described route in solution. The lipase-catalysed amidation of L- and D-Glu diesters with N-benzyl-4-(2-aminoethyl)piperidine has been studied, using Candida antarctica and Mucor miehei lipases...
April 21, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28182334/utility-of-intraoperative-frozen-sections-in-surgical-decision-making-for-acute-invasive-fungal-rhinosinusitis
#9
Peter Papagiannopoulos, Diana Murro Lin, Samer Al-Khudari, Kumar Rajan, Swathi Reddy, Paulo Gattuso, Bobby Tajudeen, Pete S Batra
BACKGROUND: Acute invasive fungal rhinosinusitis (AIFRS) represents a fulminant, potentially fatal, disease process in immunocompromised patients. The diagnosis often rests on high index of clinical suspicion, with relative paucity of data on the diagnostic and therapeutic implications of intraoperative frozen sections. METHODS: Retrospective review was performed for 18 cases undergoing endoscopic sinus surgery for AIFRS. Reliability of intraoperative frozen section diagnosis was evaluated for all patients using final pathology as the gold standard...
February 9, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28165868/effect-of-the-filamentous-fungus-mucor-circinelloides-on-the-development-of-eggs-of-the-rumen-fluke-calicophoron-daubneyi-paramphistomidae
#10
Fabià  N Arroyo, Josà  à  Ngel Hernà  Ndez, Cristiana Filipa Cazapal-Monteiro, Josà  Pedreira, Jaime Sanchà  S, à  Ngel Romasanta, Rita Sã  Nchez-Andrade, Adolfo Paz-Silva, Marà  A Sol Arias
Ruminants infected by Paramphistomidae flukes shed eggs in the feces, which pass through different stages in the environment until the infective stages (metacercariae) are reached. The activity of the soil fungus Mucor circinelloides on the development of eggs of the rumen fluke Calicophoron daubneyi was presently tested with 3 probes, i.e., in Petri plates, feces and an aqueous environment (tubes). The effect of the fungus was assessed by recording the numbers of undeveloped, non-viable and embryonated eggs...
February 6, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28154489/characterization-of-two-new-records-of-mucoralean-species-isolated-from-gut-of-soldier-fly-larva-in-korea
#11
Thi Thuong Thuong Nguyen, Tham Thi Duong, Hyang Burm Lee
While surveying the diversity of fungi of the order Mucorales, two isolates, EML-PUKI12-1 and EML-PUKI06-1, were obtained from the gut of soldier fly larvae inhabiting the bulrush at a pond located in the Chonnam National University Arboretum, Gwangju, Korea. The isolates were confirmed as Mucor irregularis and Mucor fragilis species, respectively, based on the morphological characteristics and phylogenetic analysis of rDNA internal transcribed spacer region. Such mucoralean species belonging to undiscovered taxa has not previously been described in Korea...
December 2016: Mycobiology
https://www.readbyqxmd.com/read/28143744/can-fungi-compete-with-marine-sources-for-chitosan-production
#12
REVIEW
V Ghormade, E K Pathan, M V Deshpande
Chitosan, a β-1,4-linked glucosamine polymer is formed by deacetylation of chitin. It has a wide range of applications from agriculture to human health care products. Chitosan is commercially produced from shellfish, shrimp waste, crab and lobster processing using strong alkalis at high temperatures for long time periods. The production of chitin and chitosan from fungal sources has gained increased attention in recent years due to potential advantages in terms of homogenous polymer length, high degree of deacetylation and solubility over the current marine source...
January 28, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28118388/ftir-spectroscopy-for-evaluation-and-monitoring-of-lipid-extraction-efficiency-for-oleaginous-fungi
#13
Kristin Forfang, Boris Zimmermann, Gergely Kosa, Achim Kohler, Volha Shapaval
To assess whether Fourier Transform Infrared (FTIR) spectroscopy could be used to evaluate and monitor lipid extraction processes, the extraction methods of Folch, Bligh and Lewis were used. Biomass of the oleaginous fungi Mucor circinelloides and Mortierella alpina were employed as lipid-rich material for the lipid extraction. The presence of lipids was determined by recording infrared spectra of all components in the lipid extraction procedure, such as the biomass before and after extraction, the water and extract phases...
2017: PloS One
https://www.readbyqxmd.com/read/28107502/rnai-based-functional-genomics-identifies-new-virulence-determinants-in-mucormycosis
#14
Trung Anh Trieu, María Isabel Navarro-Mendoza, Carlos Pérez-Arques, Marta Sanchis, Javier Capilla, Patricia Navarro-Rodriguez, Loida Lopez-Fernandez, Santiago Torres-Martínez, Victoriano Garre, Rosa María Ruiz-Vázquez, Francisco E Nicolás
Mucorales are an emerging group of human pathogens that are responsible for the lethal disease mucormycosis. Unfortunately, functional studies on the genetic factors behind the virulence of these organisms are hampered by their limited genetic tractability, since they are reluctant to classical genetic tools like transposable elements or gene mapping. Here, we describe an RNAi-based functional genomic platform that allows the identification of new virulence factors through a forward genetic approach firstly described in Mucorales...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28087943/rna-interference-in-fungi-retention-and-loss
#15
Francisco E Nicolás, Victoriano Garre
RNA interference (RNAi) is a mechanism conserved in eukaryotes, including fungi, that represses gene expression by means of small noncoding RNAs (sRNAs) of about 20 to 30 nucleotides. Its discovery is one of the most important scientific breakthroughs of the past 20 years, and it has revolutionized our perception of the functioning of the cell. Initially described and characterized in Neurospora crassa, the RNAi is widespread in fungi, suggesting that it plays important functions in the fungal kingdom. Several RNAi-related mechanisms for maintenance of genome integrity, particularly protection against exogenous nucleic acids such as mobile elements, have been described in several fungi, suggesting that this is the main function of RNAi in the fungal kingdom...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28080916/aerobic-microflora-and-endoparasites-of-freshly-shot-wild-agouti-dasyprocta-leporina-in-trinidad-west-indies
#16
Rod Suepaul, Roxanne Charles, Francis Dziva
The agouti ( Dasyprocta leporina ) is a New World wild rodent hunted for its meat in Trinidad and other Latin American countries. Studies on agouti under captive conditions have yielded some data on health-related aspects, but relatively very little is known about their wild counterparts. The environment of the agouti can influence the microflora and parasites harbored by the animals, which may contain zoonotic pathogens. Here, the microflora found on the nasal mucosa and sections of the intestinal tract and endoparasites of freshly shot agouti from various areas of Trinidad are described...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28074432/stereo-and-region-specific-biotransformation-of-physapubescin-by-four-fungal-strains
#17
Chongyue Qiu, Ting Yuan, Dejuan Sun, Suyu Gao, Lixia Chen
Biotransformations of physapubescin (1) were performed by four fungal strains-Mucor subtilissimus AS 3.2454, Mucor polymorphosporus AS 3.3443, Aspergillus niger AS 3.795, and Syncephalastrum racemosum AS 3.264. Four metabolites were prepared in the biotransformation process of 1, and their structures were elucidated as 15α-acetoxy-5,6β:22,26:24,25-triepoxy-26α-hydroxy-3β-methoxy 4β-hydroxyergost-1-one (2), 15α-acetoxy-5,6β:22,26-diepoxy-4β,24β,25α,26(α, β)-tetrahydroxyergost-3β-methoxy-1-one (3a/3b), 15α-acetoxy-5,6β:22,26-diepoxy-4β,24β,25α,26(α, β)-tetrahydroxyergost-2-en-1-one (4a/4b), and physapubescin D (5), by spectroscopic data analysis...
January 10, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28074427/erratum-to-functional-identification-and-regulatory-analysis-of-%C3%AE-6-fatty-acid-desaturase-from-the-oleaginous-fungus-mucor-sp-eim-10
#18
Xianzhang Jiang, Hongjiao Liu, Yongchao Niu, Feng Qi, Mingliang Zhang, Jianzhong Huang
No abstract text is available yet for this article.
January 10, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28053593/evaluation-of-aerial-microbial-pollutants-in-al-haram-al-nabawi-during-pilgrimage-of-2013
#19
Kholoud M Alananbeh, Nahla Boquellah, Nadia Al Kaff, Majid Al Ahmadi
Al-Madinah Al-Munawwarah is the second holiest site in Islam. The possibility of new emerging microbes is valid due to the increased number of pilgrims. The objectives of the current study were to estimate the numbers of fungi and bacteria inside and outside Al-Haram Al-Nabawi and to find whether new bacterial and fungal species have emerged compared to previous studies. Air samples were collected twice a day from 12 spots and four directions during the pilgrim year of 2013 for four consecutive weeks by using the sedimentation method...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28034456/biotransformation-of-an-africanane-sesquiterpene-by-the-fungus-mucor-plumbeus
#20
Braulio M Fraga, Carmen E Díaz, Leonardo J Amador, Matías Reina, Matías López-Rodriguez, Azucena González-Coloma
Biotransformation of 8β-hydroxy-african-4(5)-en-3-one angelate by the fungus Mucor plumbeus afforded as main products 6α,8β-dihydroxy-african-4(5)-en-3-one 8β-angelate and 1α,8β-dihydroxy-african-4(5)-en-3-one 8β-angelate, which had been obtained, together with the substrate, from transformed root cultures of Bethencourtia hermosae. This fact shows that the enzyme system involved in these hydroxylations in both organisms, the fungus and the plant, acts with the same regio- and stereospecificity. In addition another twelve derivatives were isolated in the incubation of the substrate, which were identified as the (2'R,3'R)- and (2'S,3'S)-epoxy derivatives of the substrate and of the 6α- and 1α-hydroxy alcohols, the 8β-(2'R,3'R)- and 8β-(2'S,3'S)-epoxyangelate of 8β,15-dihydroxy-african-4(5)-en-3-one, the hydrolysis product of the substrate, and three isomers of 8β-hydroxy-african-4(5)-en-3-one 2ξ,3ξ-dihydroxy-2-methylbutanoate...
March 2017: Phytochemistry
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