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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]
Guozhu Zhao, Guohua Yin, Arati A Inamdar, Jing Luo, Ning Zhang, Ill Yang, Brian Buckley, Joan W Bennett
Super Storm Sandy provided an opportunity to study filamentous fungi (molds) associated with winter storm damage. We collected 36 morphologically distinct fungal isolates from flooded buildings. By combining traditional morphological and cultural characters with an analysis of ITS sequences (the fungal DNA barcode), we identified 24 fungal species that belong to 8 genera: Penicillium (12 species), Fusarium (4 species), Aspergillus (3 species), Trichoderma (2 species), and one species each of Metarhizium, Mucor, Pestalotiopsis, and Umbelopsis...
October 17, 2016: Indoor Air
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
Agustina Del Palacio, Ana Mionetto, Lina Bettucci, Dinorah Pan
Silage, one of the most important feed sources for cattle, is vulnerable to contamination by spoilage moulds and mycotoxins because ensilage materials are excellent substrates for fungal growth. The aim of this study was to identify the mycobiota of sorghum silages, to determine the presence of aflatoxins and fumonisins, and to correlate these results with physical parameters of the silage. A total of 275 samples of sorghum were collected from dairy farms in the south-west region of Uruguay were silage practices are developed...
October 4, 2016: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
X M Han, H Y Zhang, J Zhang, W J Xu, D Liu, T Jiang, J Xu, F Q Li
Objective: To investigate fungi contamination and the natural occurrence of mycotoxins in corn feed ingredients collected from China. Methods: A total of 94 corn feed ingredient samples were collected from 8 Chinese provinces(i.e., Anhui, Hebei, Heilongjiang, Jilin, Jiangsu, Liaoning, Inner Mongolia, and Shandong)in February 2014. A tandem ultra-performance liquid chromatographymass spectrometry method was used for simultaneous detection of twelve kinds of mycotoxins, including aflatoxin(AF), type A and type B tricothecenes, and zearalenone(ZEN)...
October 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
Zhen Liu, Yan-Hua Lu, Xu Feng, Ying-Xin Zou, Zhuo Diao, Zhi-Yong Chu
The pentacyclic triterpenoid hederagenin (1) was subjected to biotransformation by Cunninghamella echinulate CGMCC 3.2000, Mucor subtilissimus CGMCC 3.2454 and Pseudomonas oleovorans CGMCC 1.1641. Three metabolites were obtained. On the basis of nuclear magnetic resonance and high-resolution mass spectral analyses, their structures were characterized as 3β, 23-dihydroxyolean-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester (2), 3β, 15α, 23-trihydroxyolean-12-en-28-oic acid (3), 1β, 3β, 23-trihydroxyolean-12-en-28-oic acid (4), and metabolite (3) was a new compound...
September 26, 2016: Journal of Asian Natural Products Research
Ruyi Sha, Qin Meng
In this paper, rhamnolipids are investigated, for the first time, for their feasibility for inhibiting dimorphic fungi. Rhamnolipids were found to effectively inhibit a dimorphic fungus isolated from tomato plants which was identified as Mucor circinelloides according to characterizations by morphologies as well as 28S rDNA sequences. Rhamnolipids markedly reduced growth of this fungus in both the yeast-like form and the filamentous form. Such an inhibitive effect was similarly obtained with Verticillium dahliae, a representative member of dimorphic fungi, confirming the effectiveness of rhamnolipids in the two growth forms of dimorphic fungi...
September 21, 2016: Journal of General and Applied Microbiology
Lina Marcela Silva-Bedoya, María Solange Sánchez-Pinzón, Gloria Ester Cadavid-Restrepo, Claudia Ximena Moreno-Herrera
The operation of wastewater treatment technologies depends on a combination of physical, chemical and biological factors. Microorganisms present in wastewater treatment plants play essential roles in the degradation and removal of organic waste and xenobiotic pollutants. Several microorganisms have been used in complementary treatments to process effluents rich in fats and oils. Microbial lipases have received significant industrial attention because of their stability, broad substrate specificity, high yields, and regular supply, as well as the fact that the microorganisms producing them grow rapidly on inexpensive media...
November 2016: Microbiological Research
Maranda Esterhuizen-Londt, Katrin Schwartz, Stephan Pflugmacher
The increasing anthropogenic pollution of aquatic environments and fresh water scarcity worldwide have prompted the development of low-cost and effective water treatment alternatives. One example of a highly released anthropogenic xenobiotics is acetaminophen (APAP), which has been detected in surface waters at concentrations as high as 5 μg L(-1). To date, traditional water treatment plants were unable to remove all pharmaceutical xenobiotics and as in the case with APAP, the breakdown products are toxic...
October 2016: Fungal Biology
Kristy Koselny, Julianne Green, Louis DiDone, Justin P Halterman, Annette W Fothergill, Nathan P Wiederhold, Thomas F Patterson, Melanie T Cushion, Chad Rappelye, Melanie Wellington, Damian J Krysan
Only one new class of antifungal drugs has been introduced into clinical practice in the last thirty years and, thus, the identification of small molecules with novel mechanisms of action is an important goal of current anti-infective research. Here, we describe the characterization of the spectrum of in vitro activity and in vivo activity of AR-12, a celecoxib-derivative which has been tested in a Phase I clinical trial as an anti-cancer agent. AR-12 inhibits fungal acetyl CoA synthetase in vitro and is fungicidal at concentrations similar to those achieved in human plasma...
September 19, 2016: Antimicrobial Agents and Chemotherapy
Jaroslav Smrž, Hana Soukalová, Vlasta Čatská, Jan Hubert
Mycophagy should not be considered as a single and homogeneous category of nutritional biology due to the specific symbiotic chitinolytic bacteria associated with mites and fungi. To test interaction among mites, fungi, and chitinolytic bacteria, experiments were conducted on the model species Tyrophagus putrescentiae (Schrank). Mucor sp, Alternaria alternata, Penicillium claviforme, P. griseofulvum, and Verticillium sp. were plated onto malt agar and offered to T. putrescentiae in the laboratory. Mites were evaluated utilizing microanatomical examination based on histology, excrement analysis using fluorescence microscopy, bacterial plating, impact of mite homogenate on fungi in Petri dishes, reproduction of mites feeding upon each fungus, and isolation of associated bacteria inside mites...
2016: Journal of Insect Science
Toshihiko Katoh, Takane Katayama, Yusuke Tomabechi, Yoshihide Nishikawa, Jyunichi Kumada, Yuji Matsuzaki, Kenji Yamamoto
Endo-M, an endoglycosidase from the fungus, Mucor hiemalis, is a useful tool for chemoenzymatic synthesis of glycoconjugates, including glycoprotein-based therapeutics having a precisely defined glycoform, by virtue of its transglycosylation activity. Although Endo-M has been known to act on various N-glycans, it does not act on core-fucosylated N-glycans, which exist widely in mammalian glycoproteins, thus limiting its application. Therefore, we performed site-directed mutagenesis on Endo-M to isolate mutant enzymes that are able to act on mammalian-type core-α1,6-fucosylated glycans...
September 14, 2016: Journal of Biological Chemistry
W Zhou, Q Liu, W D Zhao, H P Yu, X C Sun, J J Wang, Z F Liu, H Y Li, C Q Zheng, S Y Wang, D H Wang
OBJECTIVE: To evaluate the survival outcomes of invasive fungal rhinosinusitis by analyzing the clinical features. METHODS: A retrospective analysis was performed for cases of invasive fungal sinusitis proved by histological analysis between March 2006 and November 2015. All relevant factors including interval from the onset of symptoms to initiation of diagnosis, clinical characteristics, features of CT and MRI, treatment and prognosis were collected. A total of 18 patients (10 males; 8 females) were identified...
August 7, 2016: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
G G Shi, L Shi, Z Y Zhang, Y Z Wan, B Li, L Yu, E P Zhang, H S Ju, M Q He, H Z Ji
OBJECTIVE: Through the retrospective analysis of the clinical data in 14 cases of invasive fungal rhinosinusitis (IFRS), the clinical characteristics, diagnosis and treatment of this disease were evaluated. METHODS: Fourteen clinically confirmed cases of IFRS since January 2008 to October 2015 were evaluated.collected, the clinical features, diagnosis, treatment and prognosis were analyzed to obtain a more comprehensive understanding for clinical reference. Fourteen patients were confirmed by pathological examination as IFRS, including 9 cases of aspergillus, 4 cases of mucor, and 1 case of rhinocerebral zygomycosis; including 5 cases of acute IFRS, 9 cases of chronic IFRS...
August 7, 2016: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
Bryan Stanistreet, Derek Bell
Mucormycosis is a rare, rapidly progressive and often fatal fungal infection. The rarity of the condition lends itself to unfamiliarity, delayed treatment, and poor outcomes. Diagnosis of fungal infections early enough to enable appropriate treatment occurs in less than half of affected patients. A 56-year-old male with a history of diabetes mellitus II, hepatitis C, and intravenous drug abuse was involved in a rollover motor vehicle accident. He sustained circumferential partial and full-thickness burns to his lower extremities with 20% BSA burns...
September 9, 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
Elham Salehi, Mohammad T Hedayati, Jan Zoll, Haleh Rafati, Maryam Ghasemi, Atosa Doroudinia, Mahdi Abastabar, Ali Tolooe, Eveline Snelders, Henrich A van der Lee, Antonius J M M Rijs, Paul E Verweij, Seyedmojtaba Seyedmousavi, Willem J G Melchers
In a retrospective multicenter study, 102 formalin-fixed paraffin-embedded (FFPE) tissue specimens with histopathology results were tested. Two 4-5 μm FFPE tissue sections from each specimen was digested with proteinase K followed by automated nucleic acid extraction.A specific quantitative real-time quantitative PCR (qPCR) assay targeting the internal transcribed spacer (ITS2) region of ribosomal DNA, using fluorescently labeled primers, was performed to identify clinically important genus and species of Aspergillus, Fusarium, Scedosporium and the Mucormycetes...
September 7, 2016: Journal of Clinical Microbiology
Zahra Safaei, Keikhosro Karimi, Akram Zamani
In this study the effects of phosphate, potassium, yeast extract, and trace metals on the growth of Mucor indicus and chitosan, chitin, and metabolite production by the fungus were investigated. Maximum yield of chitosan (0.32 g/g cell wall) was obtained in a phosphate-free medium. Reversely, cell growth and ethanol formation by the fungus were positively affected in the presence of phosphate. In a phosphate-free medium, the highest chitosan content (0.42 g/g cell wall) and cell growth (0.66 g/g sugar) were obtained at 2...
2016: International Journal of Molecular Sciences
Xunhang Li, Yanzhou Zhang, Zhiwen Wei, Zhengbing Guan, Yujie Cai, Xiangru Liao
The gummosis disease is caused by Botryosphaeria dothidea (Moug. ex. Fr) Ces. et de Not., and it is one of the most important diseases of stone fruits worldwide. The use of biocontrol as an alternative approach to synthetic chemical fungicides has aroused general concern about how to control plant diseases that are caused by phytopathogens. The aim of this study is to isolate Bacillus strains from raw honeys with the capacity to inhibit B. dothidea and to explore the mechanisms by which they could be used in the biocontrol of peach gummosis...
2016: PloS One
Abraham Yacoub, Kiran K Soni, Lysenia Mojica, Jane Mai, Jamie Morano, C Wayne Cruse, Ramon L Sandin, Sowmya Nanjappa, Chandrashekar Bohra, Ganesh Gajanan, John N Greene
BACKGROUND: Opportunistic fungal infections caused by Aspergillus and Candida followed by infections with Fusarium, Rhizopus, Mucor, and Alternaria species are an important cause of morbidity and mortality in patients with hematological malignancies. Cutaneous mucormycosis infections are rare, and the incidence, outcomes, and factors associated with survival in the setting of hematological malignancies are not clear. METHODS: A literature search was conducted for all cases of primary cutaneous mold infections in patients with hematological malignancy, of which 50 cases were found...
July 2016: Cancer Control: Journal of the Moffitt Cancer Center
Greice H S Peil, Anelise V Kuss, Andrés F G Rave, José P V Villarreal, Yohana M L Hernandes, Patrícia S Nascente
The lipases have ability to catalyze diverse reactions and are important in different biotechnological applications. The aim of this work was to isolate and characterize microorganisms that produce lipases, from different food industry effluents localized in Pelotas, RS/Brazil. Bacteria were identified using Gram stain and biochemical tests (Vitek 2(r)). Fungi were identified according to macro and micromorphology characteristics. The extracellular lipase production was evaluated using the Rhodamine B test and the enzymatic activity by titration...
August 18, 2016: Anais da Academia Brasileira de Ciências
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