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Carlos Alberto Fragoso de Souza, Diogo Xavier Lima, Luciana M S Gurgel, André Luiz Cabral Monteiro de Azevedo Santiago
Mucorales comprises fungi commonly isolated as saprobes from soil, dung, stored grains and plants. Although these fungi have been studied in several countries, there are relatively a few reports of them in semi-arid areas. Therefore, the aims of the present study were to assess and compare the Mucorales communities in dung from different species and breeds of herbivores in the semi-arid of Pernambuco, based on the frequency of occurrence and species richness of these fungi. Samples of dung collected in the cities of Arcoverde, Serra Talhada and Sertânia were incubated in moist chambers in triplicate...
October 4, 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
Igor Zeman, Martina Neboháčová, Gabriela Gérecová, Kornélia Katonová, Eva Jánošiková, Michaela Jakúbková, Ivana Centárová, Ivana Dunčková, Ĺubomir Tomáška, Leszek P Pryszcz, Toni Gabaldón, Jozef Nosek
The pathogenic yeast Candida parapsilosis metabolizes hydroxyderivatives of benzene and benzoic acid to compounds channeled into central metabolism including the mitochondrially-localized tricarboxylic acid cycle via the 3-oxoadipate and gentisate pathways. The orchestration of both catabolic pathways with mitochondrial metabolism as well as their evolutionary origin is not fully understood. Our results show that the enzymes involved in these two pathways operate in the cytoplasm with the exception of the mitochondrially-targeted 3-oxoadipate CoA-transferase (Osc1p) and 3-oxoadipyl-CoA thiolase (Oct1p) catalyzing the last two reactions of the 3-oxoadipate pathway...
October 5, 2016: G3: Genes—Genomes—Genetics
Abhishek Shukla, Nitin Shrivastava, Chirom Amit Singh, Brusabhanu Nayak
Background: Zygomycoses are uncommon, frequently fatal diseases caused by fungi of the class Zygomycetes. The majority of human cases are caused by Mucorales (genus-rhizopus, mucor, and absidia) fungi. Renal involvement is uncommon and urine microscopy, pottasium hydroxide mount, and fungal cultures are frequently negative. Case Presentation: A twenty-one-year-old young unmarried lady presented to our emergency department with bilateral flank pain, fever, nausea, and decreased urine output of one-month duration...
2016: J Endourol Case Rep
Pan Li, Weifeng Lin, Xiong Liu, Xiaowen Wang, Xing Gan, Lixin Luo, Wei-Tie Lin
Daqu, a traditional fermentation starter that is used for Chinese liquor and vinegar production, is still manufactured through a traditional spontaneous solid-state fermentation process with no selected microorganisms are intentionally inoculated. The aim of this work was to analyze the microbiota dynamics during the solid-state fermentation process of Daqu using a traditional and bioaugmented inoculation with autochthonous of Bacillus, Pediococcus, Saccharomycopsis and Wickerhamomyces at an industrial scale...
February 2017: Food Microbiology
Catriona L Halliday, Sharon C-A Chen, Sarah E Kidd, Sebastian van Hal, Belinda Chapman, Christopher H Heath, Andie Lee, Karina J Kennedy, Kathryn Daveson, Tania C Sorrell, C Orla Morrissey, Deborah J Marriott, Monica A Slavin
Antifungal susceptibilities of non-Aspergillus filamentous fungal pathogens cannot always be inferred from their identification. Here we determined, using the Sensititre(®) YeastOne(®) YO10 panel, the in vitro activities of nine antifungal agents against 52 clinical isolates of emergent non-Aspergillus moulds representing 17 fungal groups in Australia. Isolates comprised Mucorales (n = 14), Scedosporium/Lomentospora spp. (n = 18) and a range of hyaline hyphomycetes (n = 9) and other dematiaceous fungi (n = 11)...
October 2016: International Journal of Antimicrobial Agents
Sang Won Lee, Hyun Seok Lee
Gastric mucormycosis is a rare and life-threatening fungal disease, caused by fungus in the order Mucorales. While rhino-cerebral and pulmonary forms are common, gastric mucormycosis is an uncommon site for the disease. We diagnosed gastric mucormycosis in a 41-year-old female who had severe multiple trauma, including cardiac rupture, due to a traffic accident. Eighteen days after hospitalization, she passed 800 mL of melena over one day. We performed upper esophagogastroduodenoscopy (EGD) and found a huge gastric ulcer with bleeding...
August 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
Jyotiranjan Bal, Suk-Hyun Yun, Soo-Hwan Yeo, Jung-Mi Kim, Dae-Hyuk Kim
Nuruk, a traditional natural starter, is extensively used in the brewing of Makgeolli, one of Korea's most popular alcoholic beverages that has been recently gaining global popularity. Thus, the quality of traditional nuruk needs to be enhanced. The nuruk mycobiome greatly influences both fermentation process as well as palatability enhancement. Limitations of culture-dependent identification restrict an accurate analysis of fungal diversity and distribution in nuruks. 454 pyrosequencing of two traditional wheat-based nuruks, prepared at two representative temperature conditions revealed a total of 153 and 53 OTUs for nuruks A and B, respectively, from a total of 33,157 ITS sequences...
December 2016: Food Microbiology
Chibundu N Ezekiel, Michael Sulyok, Yinka Somorin, Foluke I Odutayo, Stella U Nwabekee, Afeez T Balogun, Rudolf Krska
An examination of the mould and fungal metabolite pattern in melon and bush mango seeds locally produced in Nigeria was undertaken in order to understand the mycotoxicological risk posed to consumers of both of these important and commonly consumed soup thickeners. The variation in mycotoxin levels in graded categories of both foodstuffs were also determined. Aspergillus, Fusarium, Penicillium, Mucorales and Trichoderma were the recovered fungi from the foodstuffs with Aspergillus species dominating (melon=97...
November 21, 2016: International Journal of Food Microbiology
Pan Li, Weifeng Lin, Xiong Liu, Xiaowen Wang, Lixin Luo
In this study, we investigated the microbiota dynamics during two industrial-scale traditional solid-state fermentation (SSF) processes of Daqu starters. Similar evolution profiles of environmental parameters, enzymatic activities, microbial amounts, and communities were observed during the medium temperature SSF (MTSSF) and low temperature SSF (LTSSF) processes. Orders of Rickettsiales and Streptophyta only dominated the initial 2 days, and Eurotiales only predominated from days 10 to 24, however, phylotypes of Enterobacteriales, Lactobacillales, Bacillales, Saccharomycetales, and Mucorales both prevailed throughout the MTSSF and LTSSF processes...
2016: Frontiers in Microbiology
Matthieu Legrand, Maud Gits-Muselli, Louis Boutin, Dea Garcia-Hermoso, Véronique Maurel, Sabri Soussi, Mourad Benyamina, Axelle Ferry, Maïté Chaussard, Samia Hamane, Blandine Denis, Sophie Touratier, Nicolas Guigue, Emilie Fréalle, Mathieu Jeanne, Jean-Vivien Shaal, Charles Soler, Maurice Mimoun, Marc Chaouat, Matthieu Lafaurie, Alexandre Mebazaa, Stéphane Bretagne, Alexandre Alanio
BACKGROUND:  Invasive wound mucormycosis (IWM) is associated with an extremely poor outcome among critically ill burn patients. The purpose of this study was to describe the detection of circulating Mucorales DNA for the early recognition of IWM in critically ill burn patients and to report the potential value of detecting circulating Mucorales DNA (cmDNA) for treatment guidance. METHODS:  Severely ill burn patients admitted to a tertiary referral center between October 2013 and February 2016 were included...
August 17, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Arnault Tauziède-Espariat, Michel Wassef, Homa Adle-Biassette, Alexandre Alanio, Stéphane Bretagne, Fanny Lanternier, Mohammed Boui, Olivier Bouchaud, Pierre Vironneau, Romain Kania, Grégory Jouvion, Fabrice Chrétien, Marion Classe
Rhino-sinusal infections are serious diseases and possibly lethal. When they are invasive, we easily discuss apergilloses and mucormycoses. The confirmation of the diagnosis of mucormycosis need an extensive surgery for precise histopathological and mycological evaluation. The pathologist may be faced to other rare mycoses such as phaeohyphomycoses, which present different morphological features than mucormycoses and Aspergillus. Once the diagnosis is established, an appropriate antifungal treatment is quickly started...
August 2016: Annales de Pathologie
Marcus C Chibucos, Sameh Soliman, Teclegiorgis Gebremariam, Hongkyu Lee, Sean Daugherty, Joshua Orvis, Amol C Shetty, Jonathan Crabtree, Tracy H Hazen, Kizee A Etienne, Priti Kumari, Timothy D O'Connor, David A Rasko, Scott G Filler, Claire M Fraser, Shawn R Lockhart, Christopher D Skory, Ashraf S Ibrahim, Vincent M Bruno
Mucormycosis is a life-threatening infection caused by Mucorales fungi. Here we sequence 30 fungal genomes, and perform transcriptomics with three representative Rhizopus and Mucor strains and with human airway epithelial cells during fungal invasion, to reveal key host and fungal determinants contributing to pathogenesis. Analysis of the host transcriptional response to Mucorales reveals platelet-derived growth factor receptor B (PDGFRB) signaling as part of a core response to divergent pathogenic fungi; inhibition of PDGFRB reduces Mucorales-induced damage to host cells...
2016: Nature Communications
Siddanagouda Biradar, Shivraj N Patil, Deepak Kadeli
Mucormycosis is the name given to several different diseases caused by fungi of the order mucorales. It is commonly seen in patients with decreased immunity like patients with chronic renal failure, organ transplantation, neutropenia and most commonly in those with poorly controlled diabetes. We present a case of 55-year-old diabetic man who presented with headache and fever diagnosed with pulmonary and maxillary sinus mucormycosis presenting as diabetic ketoacidosis.
May 2016: Journal of Clinical and Diagnostic Research: JCDR
Khaled Al-Tarrah, Mahmoud Abdelaty, Ahmad Behbahani, Eman Mokaddas, Helmy Soliman, Ahdi Albader
BACKGROUND: Mucormycosis is a rare, aggressive, and life-threatening infection that is caused by organisms belonging to the order Mucorales. It is usually acquired through direct means and virtually always affects immunocompromised patients with the port of entry reflecting the site of infection, in this case, cutaneous. Unlike other mucormycoses, patients affected by Apophysomyces elegans (A elegans) are known to be immunocompetent. This locally aggressive disease penetrates through different tissue plains invading adjacent muscles, fascia, and even bone causing extensive morbidity and may prove fatal if treated inadequately...
July 2016: Medicine (Baltimore)
Dikshya Sharma, Kumud Dahal, Bandana Pathak, Udip Dahal
Mucormycosis is a rare infection caused by the ubiquitous filamentous fungi of the order Mucorales and class Zygomycetes. These species are vasotropic, causing rapid onset of tissue infarctions and necrosis and subsequent thrombosis by invading vascular bed. The disease spectrum ranges from involvement of skin, sinuses, lung, and brain to disseminated and mostly fatal infections, especially in immunocompromised hosts. Here, we present a case of a fatal disseminated mucormycosis in a 56-year-old female who had deceased donor renal allograft transplantation ~2 weeks prior to presentation...
2016: International Medical Case Reports Journal
Margaret V Powers-Fletcher, Brian A Kendall, Allen T Griffin, Kimberly E Hanson
Filamentous mycoses are often associated with significant morbidity and mortality. Prompt diagnosis and aggressive treatment are essential for good clinical outcomes in immunocompromised patients. The host immune response plays an essential role in determining the course of exposure to potential fungal pathogens. Depending on the effectiveness of immune response and the burden of organism exposure, fungi can either be cleared or infection can occur and progress to a potentially fatal invasive disease. Nonspecific cellular immunity (i...
June 2016: Microbiology Spectrum
Monica A Donnelley, Elizabeth S Zhu, George R Thompson
We have a limited arsenal with which to treat invasive fungal infections caused by Aspergillus and Mucorales. The morbidity and mortality for both pathogens remains high. A triazole antifungal, isavuconazole, was recently granted approval by the US Food and Drug Administration and the European Medicines Agency for the treatment of invasive aspergillosis and mucormycosis. A randomized double-blind comparison trial for the treatment of invasive aspergillosis found isavuconazole noninferior to voriconazole. A separate, open-label study evaluating the efficacy of isavuconazole in the treatment of mucormycosis found comparable response rates to amphotericin B and posaconazole treated historical controls...
2016: Infection and Drug Resistance
Shilpa P Tathe, Aarti A Dani, Sanjay M Chawhan, Saroj A Meshram, Archana A Randale, Waman K Raut
The fungi in the order of Mucorales commonly target diabetics and other immunocompromised hosts, producing fatal respiratory and or CNS infections. Gastrointestinal mucormycosis is uncommon and seldom diagnosed in living patients due to nonspecific clinical manifestations. We report a case of gastric mucormycosis in an immmunocompetent male patient, diagnosed by imprint cytology-a rare site and a rare setting. To the best of our knowledge, this is only the second report of gastric mucormycosis being diagnosed on cytology...
October 2016: Diagnostic Cytopathology
Treavor T Riley, Christina A Muzny, Edwin Swiatlo, Davey P Legendre
OBJECTIVE: To review the current literature for the pathogenesis of mucormycosis, discuss diagnostic strategies, and evaluate the efficacy of polyenes, triazoles, and echinocandins as pharmacological treatment options. DATA SOURCES: An electronic literature search was conducted in PubMed using the MESH terms Rhizopus, zygomycetes, zygomycosis, Mucorales and mucormycosis, with search terms amphotericin B, micafungin, anidulafungin, caspofungin, extended infusion amphotericin B, liposomal amphotericin B, combination therapy, triazole, posaconazole, isavuconazole, diagnosis, and clinical manifestations...
September 2016: Annals of Pharmacotherapy
Pankaj Singh, Saikat Paul, M Rudramurthy Shivaprakash, Arunaloke Chakrabarti, Anup K Ghosh
Mucorales are saprobes, ubiquitously distributed and able to infect a heterogeneous population of human hosts. The fungi require robust stress responses to survive in human host. We tested the growth of Mucorales in the presence of different abiotic stress. Eight pathogenic species of Mucorales, including Rhizopus arrhizus, Rhizopus microsporus, Rhizomucor pusillus, Apophysomyces elegans, Licthemia corymbifera, Cunninghamella bertholletiae, Syncephalastrum racemosum and Mucor racemosus, were exposed to different stress inducers: osmotic (sodium chloride and d-sorbitol), oxidative (hydrogen peroxide and menadione), pH, cell wall and metal ions (Cu, Zn, Fe and Mg)...
October 2016: Mycoses
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