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Artículos de revistas sobre el tema "Mucor circinelloides"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 1 de febrero de 2022

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1

Saito, S., T. J. Michailides y C. L. Xiao. "Mucor Rot—An Emerging Postharvest Disease of Mandarin Fruit Caused by Mucor piriformis and other Mucor spp. in California". Plant Disease 100, n.º 6 (junio de 2016): 1054–63. http://dx.doi.org/10.1094/pdis-10-15-1173-re.

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In recent years, an emerging, undescribed postharvest disease was observed on mandarin fruit after extended storage in California. We collected decayed mandarin fruit from three citrus packinghouses in the Central Valley of California in 2015 and identified this disease as Mucor rot caused by Mucor spp. Mucor rot occurred in 11 of the 15 grower lots sampled, and the percentage of Mucor rot in the total decayed fruit varied among affected grower lots, ranging from 3.3 to 93.1% with an average of 49.2%. In total, 197 isolates of Mucor spp. were obtained from decayed mandarin fruit and identified based on internal transcribed spacer sequence and morphological characteristics. Of the 197 isolates, 182 (92.4%) were identified as Mucor piriformis, 7 (3.6%) were M. circinelloides (6 M. circinelloides f. lusitanicus and 1 M. circinelloides f. circinelloides), 4 (2%) were M. racemosus f. racemosus, 3 (1.5%) were M. hiemalis, and 1 (0.5%) was M. mucedo. All species grew at 0 and 5°C, except M. circinelloides, which did not grow at 0°C. Mycelial growth was arrested at 27°C for M. piriformis; 35°C for M. racemosus f. racemosus, M. circinelloides f. lusitanicus, M. hiemalis and M. mucedo; and 37°C for M. circinelloides f. circinelloides. Optimal mycelial growth occurred at 20°C for M. piriformis and M. mucedo, 25°C for M. racemosus f. racemosus and M. hiemalis, 27°C for M. circinelloides f. lusitanicus, and 30°C for M. circinelloides f. circinelloides. M. piriformis grew significantly faster than the other four species at 5 and 20°C, and M. mucedo was the slowest in growth among the five species. Sporangiospores of M. piriformis, M. racemosus f. racemosus, and M. hiemalis germinated at both 5 and 20°C. M. circinelloides germinated at 20°C but did not germinate at 5°C after incubation for 48 h. All five Mucor spp. caused decay on mandarin fruit inoculated with the fungi, and the lesion size caused by M. piriformis was significantly larger than that caused by other species at both 5 and 20°C. Our results indicated that Mucor rot in mandarin fruit in California is caused by Mucor spp. consisting of M. piriformis, M. circinelloides, M. racemosus f. racemosus, M. hiemalis, and M. mucedo, with M. piriformis being the dominant and most virulent species. Previously, M. racemosus was reported on citrus. This is the first report of Mucor rot in citrus caused by M. piriformis, M. circinelloides, M. hiemalis, and M. mucedo.

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2

Wagner, L., J. B. Stielow, G. S. de Hoog, K. Bensch, V. U. Schwartze, K. Voigt, A. Alastruey-Izquierdo, O. Kurzai y G. Walther. "A new species concept for the clinically relevant Mucor circinelloides complex". Persoonia - Molecular Phylogeny and Evolution of Fungi 44, n.º 1 (29 de junio de 2020): 67–97. http://dx.doi.org/10.3767/persoonia.2020.44.03.

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Mucor species are common soil fungi but also known as agents of human infections (mucormycosis) and used in food production and biotechnology. Mucor circinelloides is the Mucor species that is most frequently isolated from clinical sources. The taxonomy of Mucor circinelloides and its close relatives (Mucor circinelloides complex – MCC) is still based on morphology and mating behaviour. The aim of the present study was a revised taxonomy of the MCC using a polyphasic approach. Using a set of 100 strains molecular phylogenetic analysis of five markers (ITS, rpb1, tsr1, mcm7, and cfs, introduced here) were performed, combined with phenotypic studies, mating tests and the determination of the maximum growth temperatures. The multi-locus analyses revealed 16 phylogenetic species of which 14 showed distinct phenotypical traits and were recognised as discrete species. Five of these species are introduced as novel taxa: M. amethystinus sp. nov., M. atramentarius sp. nov., M. variicolumellatus sp. nov., M. pseudocircinelloides sp. nov., and M. pseudolusitanicus sp. nov. The former formae of M. circinelloides represent one or two separate species. In the MCC, the simple presence of well-shaped zygospores only indicates a close relation of both strains, but not necessarily conspecificity. Seven species of the MCC have been implemented in human infection: M. circinelloides, M. griseocyanus, M. janssenii, M. lusitanicus, M. ramosissimus, M. variicolumellatus, and M. velutinosus.

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3

Gonzalez-Hernandez, G. A., L. Herrera-Estrella, V. Rocha-Ramirez, M. I. G. Roncero y J. F. Gutierrez-Corona. "Biolistic transformation of Mucor circinelloides". Mycological Research 101, n.º 8 (agosto de 1997): 953–56. http://dx.doi.org/10.1017/s0953756297003614.

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4

Somogyv�ri, F., Cs V�gv�lgyi, T. Papp y L. Ferenczy. "Electrofusion of Mucor circinelloides protoplasts". Biotechnology Techniques 10, n.º 8 (agosto de 1996): 607–10. http://dx.doi.org/10.1007/bf00157370.

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5

Nagy, �., Cs V�gv�lgyi, �. Balla y L. Ferenczy. "Electrophoretic karyotype of Mucor circinelloides". Current Genetics 26, n.º 1 (julio de 1994): 45–48. http://dx.doi.org/10.1007/bf00326303.

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6

Tan, Yun Nian, Pei Pei Lee y Wei Ning Chen. "Dual Extraction of Crustacean and Fungal Chitosan from a Single Mucor circinelloides Fermentation". Fermentation 6, n.º 2 (12 de abril de 2020): 40. http://dx.doi.org/10.3390/fermentation6020040.

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Mucor circinelloides is a fungus that has been reported to produce ethanol, oil, protein, phosphate and glucosamine, depending on the available nutrients and cultivation conditions. Due to its ability to produce extracellular proteases, it is able to ferment polypeptides and amino acids broken down from various protein sources. In this study, we attempted to culture the Mucor circinelloides on waste substrates to deproteinize prawn shells for the extraction of chitin and subsequently extract chitosan from its fungal cell wall in a concurrent fermentation. The physio-chemical properties of the extracted crustacean chitin and fungal chitosan were determined by Fourier Transform Infrared Spectroscopy (FTIR) and Elemental Analysis (EA). We found that Mucor circinelloides grown on okara and coffee waste behaved as an excellent protease producer and successfully extracted chitin from prawn shells with a degree of deacetylation of 69.94% and 68.82%, respectively, comparable to commercial chitin (70.46%). The fungal chitosan extracted from the fermentation of Mucor circinelloides on red grape pomace substrate showed a degree of deacetylation of 61.05%, comparable to commercial chitosan (64.00%). Our results suggested feasibility of extracting chitosan from seafood waste-streams using cost-effective microbial fermentation.

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7

Chaparro Pedraza, Aura Patricia y Silvia E. Campuzano F. "Aislamiento, identificación y evaluación de la actividad antimicrobiana de metabolitos producidos por Mucor circinelloides (Cepa Nativa SPG 321)". Nova 16, n.º 29 (10 de septiembre de 2018): 63–70. http://dx.doi.org/10.22490/24629448.2690.

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Objetivo. Identificar y evaluar la capacidad antimicrobiana de los metabolitos aislados a partir delproceso de fermentación en una cepa de Mucor circinelloides. Método. En el presente estudio setrabajó la cepa nativa de Mucor circinelloides SPG 321 suministrada por el Grupo de Investigaciónde Biotrasformación (GIBUJ), con el fin de evaluar su actividad antimicrobiana. La cinética decrecimiento determinó que la ideofase culminó a la hora 264, hora determinada como la finalizaciónde la fermentación. Se separó el micelio del caldo y posteriormente se fraccionaron los extractos concromatografías de capa fina y columna en sílica gel, eluidas con diferentes relaciones de solventes.Resultados. Los resultados arrojados por la técnica de gases acoplado a masas CG-EM confirmanla importancia de Mucor circinelloides en la producción de ácidos grasos insaturados. A partir delmicelio se obtuvo un esterol, compuesto M. cB3. La fracción CHCl3 en biomasa mostró actividadinhibitoria para los microorganismos Gram positivos.

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8

Hussain, Nazir, Hameed, Yang, Mustafa y Song. "Optimization of Diverse Carbon Sources and Cultivation Conditions for Enhanced Growth and Lipid and Medium-Chain Fatty Acid (MCFA) Production by Mucor circinelloides". Fermentation 5, n.º 2 (23 de abril de 2019): 35. http://dx.doi.org/10.3390/fermentation5020035.

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9

Leeuw, Ntsoaki J., Chantel W. Swart, Desmond M. Ncango, Wilmarie M. Kriel, Carolina H. Pohl, Pieter W. J. van Wyk y Johan L. F. Kock. "Anti-inflammatory drugs selectively target sporangium development in Mucor". Canadian Journal of Microbiology 55, n.º 12 (diciembre de 2009): 1392–96. http://dx.doi.org/10.1139/w09-096.

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It is known that acetylsalicylic acid, an anti-inflammatory and anti-mitochondrial drug, targets structure development and functions of yeasts depending on elevated levels of mitochondrial activity. Using antibody probes, we previously reported that sporangia of Mucor circinelloides also contain increased mitochondrial activity, yielding high levels of 3-hydroxyoxylipins. This was, however, not found in Mortierella alpina (subgenus Mortierella ). In this study we report that acetylsalicylic acid (aspirin) also targets sporangium development of Mucor circinelloides selectively, while hyphae with lower levels of mitochondrial activity are more resistant. Similar results were obtained when the anti-inflammatory compounds benzoic acid, ibuprofen, indomethacin, and salicylic acid were tested. The anti-inflammatory drugs exerted similar effects on this dimorphic fungus as found under oxygen-limited conditions. Interestingly, sporangium development of Mortierella alpina was found not to be selectively targeted by these drugs. Mortierella alpina, which could not exhibit dimorphic growth under oxygen-limited conditions, was also more sensitive to the anti-inflammatory drugs when compared with Mucor circinelloides. These results prompt further research to assess the applicability of these antimitochondrial antifungals to protect plants and animals against Mucor infections.

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10

Dickinson, Liliane, Marianne Harboe, Robyn van Heeswijck, Per Strøman y Lars Peter Jepsen. "Expression of active mucor miehei aspartic protease in Mucor circinelloides". Carlsberg Research Communications 52, n.º 4 (julio de 1987): 243–52. http://dx.doi.org/10.1007/bf02907167.

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11

Nishijima, K. A., M. M. Wall, L. C. Chang, Y. Wei y D. K. W. Wong. "First Report of Association of Mucor circinelloides on Noni (Morinda citrifolia) in Hawaii". Plant Disease 95, n.º 3 (marzo de 2011): 360. http://dx.doi.org/10.1094/pdis-11-10-0815.

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Noni (Morinda citrifolia) is a popular medicinal plant found in tropical or subtropical regions of the world. The fruit and juice extracts have properties that are reportedly therapeutic for diabetes, high blood pressure, and certain types of cancer (1,4). In our studies on noni juice produced from fruit collected from the Kohala and Puna districts of the island of Hawaii from 2008 to 2010, Mucor circinelloides f. sp. circinelloides was isolated from 85% of 157 juice samples and observed with up to 75% incidence on fruit surfaces during fermentation processing in glass jars. Fungal growth, appearing 14 to 21 days in storage at 22°C, was pale yellow to tan brown and was associated with wounded surfaces. Single-spore strains, KN 06-2 (2006; ripe fruit puree) and KN 08-08 (2008; fermented juice; CBS 124110), identified by Centraalbureau voor Schimmelcultures by molecular methods were 97.3% similar in internal transcribed spacer sequence to the type strain (CBS 195.68). M. circinelloides f. sp. circinelloides strains (KN 08-08, KN 09-06, or KN 10-02) (2008 to 2010; fermented juice) were inoculated by pipetting an aliquot of 100 μl of fungus strain spore suspension (1 × 105 to 1.33 × 106 spores/ml) onto firm, yellow maturity noni fruit that were washed, surface disinfected, and either wounded (surface cuts) or nonwounded. Controls consisted of no inoculation and sterile distilled water (SDW) inoculation treatments. Ten to twenty each of wounded and nonwounded fruit comprised each inoculation treatment. Fruit were incubated in acrylic bins with a layer of distilled water at the bottom, and sealed with snap-on lids. The bins were incubated on a lab bench at 22 to 23°C under fluorescent lights. Fruits were evaluated for presence of fungal growth and severity of symptoms. To determine viability of spores on inoculated fruit without symptoms, surfaces were swabbed with sterile cotton swabs dipped in SDW, streaked on potato dextrose agar (PDA) plates, and incubated at 22°C under fluorescent lights. The inoculation experiment was conducted twice. Nonwounded fruit inoculated with M. circinelloides f. sp. circinelloides strains did not result in infections (KN 09-06 and KN 10-02) or produced slight mycelial growth (0 to 20%; KN 08-08). Wounded fruit inoculated with any of the three strains resulted in 85 to 100% infection of moderate severity. There were no infections in noninoculated or SDW treatments of nonwounded or wounded fruit. Koch's postulates were fulfilled with the reisolation of M. circinelloides f. sp. circinelloides from selected fruit exhibiting soft tissue, discoloration, and sporulating yellowish green mycelial growth. Swab washes from asymptomatic surfaces of inoculated nonwounded fruit resulted in the growth of M. circinelloides f. sp. circinelloides on PDA, proving viability of the spores and confirmed that the fungus is primarily pathogenic only on wounded fruit surfaces. To our knowledge, this is the first report of M. circinelloides as a wound pathogen of noni fruit. The quality of fermented noni juice may be affected by the presence of M. circinelloides f. sp. circinelloides but can be remedied by pasteurization that does not affect antitumor properties (unpublished data). This fungus is also a reported pathogen of mango (2) and peach (3). References: (1) J. Li et al. Oncol. Rep. 20:1505, 2008. (2) K. Pernezny and G. W. Simone. Phytopathol. News 34:25, 2000. (3) C. Restuccia et al. J. Food Prot. 69:2465, 2006. (4) M. Y. Wang et al. Acta Pharmacol. Sin. 23:1127, 2002.

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12

Maatooq, Galal T. "Microbial metabolism of partheniol by Mucor circinelloides". Phytochemistry 59, n.º 1 (enero de 2002): 39–44. http://dx.doi.org/10.1016/s0031-9422(01)00412-5.

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13

Papp, Tamás, Árpád Csernetics, Gábor Nagy, Eszter Tóth y Csaba Vágvölgyi. "Development of xanthophyll producing Mucor circinelloides strains". New Biotechnology 29 (septiembre de 2012): S214. http://dx.doi.org/10.1016/j.nbt.2012.08.601.

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14

Vellanki, Sandeep, Maria Isabel Navarro-Mendoza, Alexis Garcia, Laura Murcia, Carlos Perez-Arques, Victoriano Garre, Francisco E. Nicolas y Soo Chan Lee. "Mucor circinelloides: Growth, Maintenance, and Genetic Manipulation". Current Protocols in Microbiology 49, n.º 1 (27 de abril de 2018): e53. http://dx.doi.org/10.1002/cpmc.53.

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15

Papp, Tamás, Árpád Csernetics, Gábor Nagy, Ottó Bencsik, Enrique A. Iturriaga, Arturo P. Eslava y Csaba Vágvölgyi. "Canthaxanthin production with modified Mucor circinelloides strains". Applied Microbiology and Biotechnology 97, n.º 11 (9 de diciembre de 2012): 4937–50. http://dx.doi.org/10.1007/s00253-012-4610-2.

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16

Zhang, Xu, Huanhuan Yang y Zhaojie Cui. "Mucor circinelloides: efficiency of bioremediation response to heavy metal pollution". Toxicology Research 6, n.º 4 (2017): 442–47. http://dx.doi.org/10.1039/c7tx00110j.

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17

Khan, Md, Junhuan Yang, Syed Hussain, Huaiyuan Zhang, Victoriano Garre y Yuanda Song. "Genetic Modification of Mucor circinelloides to Construct Stearidonic Acid Producing Cell Factory". International Journal of Molecular Sciences 20, n.º 7 (4 de abril de 2019): 1683. http://dx.doi.org/10.3390/ijms20071683.

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Stearidonic acid (SDA; 18:4, n-3) is the delta 15-desaturase product of gamma linolenic acid (GLA; 18:3, n-6) and delta 6-desaturase product of alpha linolenic acid (ALA; 18:3, n-3). Construction of engineered oleaginous microbes have been attracting significant interest in producing SDA because of its nutritional value and pharmaceutical applications. Mucor circinelloides is a GLA producing filamentous fungus, which can be a useful tool to produce SDA. This study has, therefore, overexpressed the delta-15 desaturase (D15D) gene from Mortierella alpina in this fungus to construct a SDA-producing cell factory. To produce SDA in M. circinelloides, the homologous overexpression of D15D gene was analyzed. When the gene was overexpressed in M. circinelloides CBS 277.49, up to 5.0% SDA was accumulated in this strain. According to current knowledge, this is the first study describing the construction of a SDA-producing cell factory by overexpression of D15D gene in oleaginous fungus M. circinelloides. A new scope for further research has been established by this work to improve SDA production in this fungus, specifically in its high lipid-producing strain, WJ11.

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18

Stewart, N. J. "The In Vitro Production of Sphaerule-Like Bodies in Platypus (Ornithorhynchus anatinus)-Derived and Toad (Bufo marinus)-Derived Cultures of Mucor amphibiorum, and a Platypus-Derived Culture of Mucor circinelloides." Australian Mammalogy 20, n.º 2 (1998): 189. http://dx.doi.org/10.1071/am98189.

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Isolates of Mucor amphibiorum and Mucor circinelloides from ulcerated platypuses (Ornithorhynchus anatinus) in the north of Tasmania were compared with isolates of M. amphibiorum taken from cane toads (Bufo marinus) in Queensland. Sphaerule-like bodies previously associated with in vivo growth of M. amphibiorum were produced in vitro. Two types of sphaerule-like bodies were observed. Type 1 bodies were found only in +ve mating types. Type 2 were found in both +ve and -ve mating types. Both type 1 and type 2 sphaerule-like bodies were apparent in sections of tissue taken from ulcerated O. anatinus. Type 2 bodies were induced in M. circinelloides, a species not previously associated with the formation of sphaerule-like bodies, either in vivo or in vitro.

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19

Salas, Valentina, F. Javier Pastor, Enrique Calvo, Eduardo Alvarez, Deanna A. Sutton, Emilio Mayayo, Anette W. Fothergill, Michael G. Rinaldi y Josep Guarro. "In VitroandIn VivoActivities of Posaconazole and Amphotericin B in a Murine Invasive Infection by Mucor circinelloides: Poor Efficacy of Posaconazole". Antimicrobial Agents and Chemotherapy 56, n.º 5 (30 de enero de 2012): 2246–50. http://dx.doi.org/10.1128/aac.05956-11.

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ABSTRACTThein vitrosusceptibility of 17 strains ofMucor circinelloidesto amphotericin B and posaconazole was ascertained by using broth microdilution and disk diffusion methods and by determining the minimal fungicidal concentration (MFC). We evaluated the efficacy of posaconazole at 40 mg/kg of body weight/day and amphotericin B at 0.8 mg/kg/day in a neutropenic murine model of disseminated infection byM. circinelloidesby using 6 different strains tested previouslyin vitro. In general, most of the posaconazole MICs were within the range of susceptibility or intermediate susceptibility, while the small inhibition zone diameters (IZDs) were indicative of nonsusceptibility for all isolates tested. The MFCs were ≥3 dilutions higher than the corresponding MICs. In contrast, amphotericin B showed good activity against all of the strains tested regardless of the method used. Thein vivostudies demonstrated that amphotericin B was effective in prolonging survival and reducing the fungal load. Posaconazole showed poorin vivoefficacy with no correlation with the MIC values. The results suggested that posaconazole should be used with caution in the treatment of infections caused byMucor circinelloidesor by strains ofMucornot identified to the species level.

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Hameed, Ahsan, Syed Ammar Hussain, Junhuan Yang, Muhammad Umair Ijaz, Qing Liu, Hafiz Ansar Rasul Suleria y Yuanda Song. "Antioxidants Potential of the Filamentous Fungi (Mucor circinelloides)". Nutrients 9, n.º 10 (7 de octubre de 2017): 1101. http://dx.doi.org/10.3390/nu9101101.

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Arnau, Jos�, Gitte G. Larsen, Karen F. Appel, Anne-Mette Wolff y Jens Nielsen. "Characterisation of the Mucor circinelloides regulated promoter gpd1P". Current Genetics 45, n.º 4 (1 de abril de 2004): 225–34. http://dx.doi.org/10.1007/s00294-003-0484-2.

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Antczak, Tadeusz, Joanna Graczyk, Mirosława Szczęsna-Antczak y Stanisław Bielecki. "Activation of Mucor circinelloides lipase in organic medium". Journal of Molecular Catalysis B: Enzymatic 19-20 (diciembre de 2002): 287–94. http://dx.doi.org/10.1016/s1381-1177(02)00179-0.

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Joseph, M., J. L. F. Kock, C. H. Pohl, P. J. Botes, E. van Heerden y A. Hugo. "Acetate-enhanced polymerized triacylglycerol utilization by Mucor circinelloides". World Journal of Microbiology and Biotechnology 21, n.º 1 (febrero de 2005): 97–99. http://dx.doi.org/10.1007/s11274-004-1557-1.

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Connolly, J. H., D. L. Obendorf, R. J. Whittington y D. B. Muir. "Causes of Morbidity and Mortality in Platypus (Ornithorhynchus anatinus) From Tasmania, With Particular Reference to Mucor amphibiorum infection." Australian Mammalogy 20, n.º 2 (1998): 177. http://dx.doi.org/10.1071/am98177.

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Over a twelve month period, 25 platypuses (Ornithorhynchus anatinus) were presented for necropsy. The most common causes of mortality were dog predation (40%), road trauma (28%), starvation and/or exposure (16%) and Mucor-mycosis (8%). Mucor amphibiorum is the only disease agent known to cause significant morbidity and mortality in free-living O. anatinus in Tasmania. This fungus causes a severe, granulomatous, commonly ulcerative, skin condition in this species. A study was conducted to define the nature and extent of the granulomatous dermatitis caused by M. amphibiorum. The mycotic granulomatous dermatitis of O. anatinus appears to be confined to streams in the north and midlands. The prevalence of the disease at two infected sites was 36% (n=36) and 66% (n=3). Lesions included abscesses, ulcers, granulation tissue and nodules. Of the 17 diseased animals captured, II were adult male, 5 were adult female and 1 was a juvenile female. Thirteen isolates of M. amphibiorum were cultured from skin lesions, all were of the positive mating type. Mucor amphibiorum was not isolated from 40 faecal or 8 skin samples from O. anatinus. No M. amphibiorum was isolated from 14 environmental samples. Mucor circinelloides and M. saturninus were isolated from soil, and M. circinelloides and M. hiemalis were isolated from faecal samples from O. anatinus.

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Jeffery, Jacqueline, Johan L. F. Kock, James C. Du Preez, Andries S. Bareetseng, Dennis J. Coetzee, Piet J. Botes, Alfie Botha, Tankred Schewe y Santosh Nigam. "Effect of Acetate and pH on Sunflower Oil Assimilation by Mucor circinelloides f. circinelloides". Systematic and Applied Microbiology 22, n.º 1 (febrero de 1999): 156–60. http://dx.doi.org/10.1016/s0723-2020(99)80038-1.

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Dzurendova, Simona, Boris Zimmermann, Valeria Tafintseva, Achim Kohler, Svein Jarle Horn y Volha Shapaval. "Metal and Phosphate Ions Show Remarkable Influence on the Biomass Production and Lipid Accumulation in Oleaginous Mucor circinelloides". Journal of Fungi 6, n.º 4 (30 de octubre de 2020): 260. http://dx.doi.org/10.3390/jof6040260.

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The biomass of Mucor circinelloides, a dimorphic oleaginous filamentous fungus, has a significant nutritional value and can be used for single cell oil production. Metal ions are micronutrients supporting fungal growth and metabolic activity of cellular processes. We investigated the effect of 140 different substrates, with varying amounts of metal and phosphate ions concentration, on the growth, cell chemistry, lipid accumulation, and lipid profile of M. circinelloides. A high-throughput set-up consisting of a Duetz microcultivation system coupled to Fourier transform infrared spectroscopy was utilized. Lipids were extracted by a modified Lewis method and analyzed using gas chromatography. It was observed that Mg and Zn ions were essential for the growth and metabolic activity of M. circinelloides. An increase in Fe ion concentration inhibited fungal growth, while higher concentrations of Cu, Co, and Zn ions enhanced the growth and lipid accumulation. Lack of Ca and Cu ions, as well as higher amounts of Zn and Mn ions, enhanced lipid accumulation in M. circinelloides. Generally, the fatty acid profile of M. circinelloides lipids was quite consistent, irrespective of media composition. Increasing the amount of Ca ions enhanced polyphosphates accumulation, while lack of it showed fall in polyphosphate.

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Nguyen Anh, Phuong, Mai Le Thi Tuyet y Trung Trieu Anh. "GROWTH INHIBITORY ACTIVITIES OF THE RHIZOME CRUDE EXTRACT OF Curcuma longa ON THE HUMAN PATHOGENIC FUNGUS Mucor circinelloides". Journal of Science Natural Science 65, n.º 10 (octubre de 2020): 82–91. http://dx.doi.org/10.18173/2354-1059.2020-0051.

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Mucormycosis is an uncommon but life-threatening invasive fungal infection, mostly occurs in immunocompromised patients. Lacking the appropriate antifungal drugs is one of the reasons that lead to difficulties in the management of mucormycosis. Curcuma longa has been used traditionally and widely to treat various diseases, including fungal infections. In the search for novel antifungal compounds from natural resources, we evaluated the effect of rhizome crude extract of C. longa on Mucor circinelloides – a causal agent of mucormycosis. The results of screening, using broth dilution method and agar-well diffusion method, showed that the C. longa extract exhibited promising antifungal activity against the fungus M. circinelloides. In liquid medium, C. longa extract decreased the ability of spore germination and the speed of hyphae formation of M. circinelloides decreased by up to approximately 70% and 90%, respectively. Besides, in a solid medium, the crude extract presented similar activity with amphotericin B (400 μg\mL) in decreasing the growth of M. circinelloides by nearly 77%. Moreover, the extract of C. longa also likely to induce the yeast-like type of growth of the dimorphic M. circinelloides in the early stage. These results suggest the plant could be a potential source for further study on biochemical components and the mechanism of its antifungal activity.

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Mukhtar, Muhammad, Zahida Parveen y David A. Logan. "Isolation of RNA from the filamentous fungus Mucor circinelloides". Journal of Microbiological Methods 33, n.º 2 (julio de 1998): 115–18. http://dx.doi.org/10.1016/s0167-7012(98)00047-5.

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Rodrigues Reis, Cristiano E., Heitor B. S. Bento, Ana K. F. Carvalho, Aravindan Rajendran, Bo Hu y Heizir F. De Castro. "Critical applications of Mucor circinelloides within a biorefinery context". Critical Reviews in Biotechnology 39, n.º 4 (31 de marzo de 2019): 555–70. http://dx.doi.org/10.1080/07388551.2019.1592104.

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Navarro, Eusebio, Gerhard Sandmann y Santiago Torres-Martı́nez. "Mutants of the Carotenoid Biosynthetic Pathway of Mucor circinelloides". Experimental Mycology 19, n.º 3 (septiembre de 1995): 186–90. http://dx.doi.org/10.1006/emyc.1995.1023.

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Jackson, F. M., L. Michaelson, T. C. M. Fraser, A. K. Stobart y G. Griffiths. "Biosynthesis of triacylglycerol in the filamentous fungus Mucor circinelloides". Microbiology 144, n.º 9 (1 de septiembre de 1998): 2639–45. http://dx.doi.org/10.1099/00221287-144-9-2639.

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Papp, Tamás, Antonio Velayos, Tibor Bartók, Arturo P. Eslava, Csaba Vágvölgyi y Enrique A. Iturriaga. "Heterologous expression of astaxanthin biosynthesis genes in Mucor circinelloides". Applied Microbiology and Biotechnology 69, n.º 5 (21 de julio de 2005): 526–31. http://dx.doi.org/10.1007/s00253-005-0026-6.

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Struszczyk, Katarzyna, Mirosława Szczęsna-Antczak, Marta Walczak, Emilia Pomianowska y Tadeusz Antczak. "Isolation and purification of Mucor circinelloides intracellular chitosanolytic enzymes". Carbohydrate Polymers 78, n.º 1 (agosto de 2009): 16–24. http://dx.doi.org/10.1016/j.carbpol.2009.04.010.

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Snyder, Abigail B., John J. Churey y Randy W. Worobo. "Characterization and control of Mucor circinelloides spoilage in yogurt". International Journal of Food Microbiology 228 (julio de 2016): 14–21. http://dx.doi.org/10.1016/j.ijfoodmicro.2016.04.008.

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de Souza, Carlos Alberto Fragoso, Diogo Xavier Lima, Diogo Paes da Costa, Catarina Letícia Ferreira de Lima, Erika Valente de Medeiros y André L. C. Monteiro de Azevedo Santiago. "Mucor variicolumellatus L. Wagner & G. Walther (Mucorales, Mucoromycota): a first record for the Neotropics". Check List 16, n.º 3 (16 de junio de 2020): 743–47. http://dx.doi.org/10.15560/16.3.743.

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Two specimens of Mucor variicolumellatus L. Wagner & G. Walther were isolated from soil samples collected in an upland rainforest area located in Pernambuco state, Brazil. Their identity were confirmed by morphophysiology and ITS rDNA sequence analysis. Both specimens are distinguished from other species within the Mucor circinelloides complex by producing obovoid, ovate and strawberry-shaped columellae. A detailed description and illustration of the specimens are presented. This is the first record of M. variicolumellatus in the Neotropics.

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Bastidas, Robert J., Cecelia A. Shertz, Soo Chan Lee, Joseph Heitman y Maria E. Cardenas. "Rapamycin Exerts Antifungal ActivityIn VitroandIn Vivoagainst Mucor circinelloides via FKBP12-Dependent Inhibition of Tor". Eukaryotic Cell 11, n.º 3 (30 de diciembre de 2011): 270–81. http://dx.doi.org/10.1128/ec.05284-11.

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ABSTRACTThe zygomyceteMucor circinelloidesis an opportunistic fungal pathogen that commonly infects patients with malignancies, diabetes mellitus, and solid organ transplants. Despite the widespread use of antifungal therapy in the management of zygomycosis, the incidence of infections continues to rise among immunocompromised individuals. In this study, we established that the target and mechanism of antifungal action of the immunosuppressant rapamycin inM. circinelloidesare mediated via conserved complexes with FKBP12 and a Tor homolog. We found that spontaneous mutations that disrupted conserved residues in FKBP12 conferred rapamycin and FK506 resistance. Disruption of the FKBP12-encoding gene,fkbA, also conferred rapamycin and FK506 resistance. Expression ofM. circinelloidesFKBP12 (McFKBP12) complemented aSaccharomyces cerevisiaemutant strain lacking FKBP12 to restore rapamycin sensitivity. Expression of theMcTor FKBP12-rapamycin binding (FRB) domain conferred rapamycin resistance inS. cerevisiae, andMcFKBP12 interacted in a rapamycin-dependent fashion with theMcTor FRB domain in a yeast two-hybrid assay, validatingMcFKBP12 andMcTor as conserved targets of rapamycin. We showed thatin vitro, rapamycin exhibited potent growth inhibitory activity againstM. circinelloides. In aGalleria mellonellamodel of systemic mucormycosis, rapamycin improved survival by 50%, suggesting that rapamycin and nonimmunosuppressive analogs have the potential to be developed as novel antifungal therapies for treatment of patients with mucormycosis.

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Hasanizadeh, Parvin, Hamid Moghimi y Javad Hamedi. "Biosurfactant production by Mucor circinelloides on waste frying oil and possible uses in crude oil remediation". Water Science and Technology 76, n.º 7 (15 de junio de 2017): 1706–14. http://dx.doi.org/10.2166/wst.2017.338.

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Biosurfactants are biocompatible surface active agents which many microorganisms produce. This study investigated the production of biosurfactants by Mucor circinelloides. The effects of different factors on biosurfactant production, including carbon sources and concentrations, nitrogen sources, and iron (II) concentration, were studied and the optimum condition determined. Finally, the strain's ability to remove the crude oil and its relationship with biosurfactant production was evaluated. The results showed that M. circinelloides could reduce the surface tension of the culture medium to 26.6 mN/m and create a clear zone of 12.9 cm diameter in an oil-spreading test. The maximum surface tension reduction was recorded 3 days after incubation. The optimum condition for biosurfactant production was achieved in the presence of 8% waste frying oil as a carbon source, 2 g/L yeast extract as a nitrogen source, and 0.01 mM FeSO4. M. circinelloides could consume 8% waste frying oil in 5 days of incubation, and 87.6% crude oil in 12 days of incubation. A direct correlation was observed between oil degradation and surface tension reduction in the first 3 days of fungal growth. The results showed that the waste frying oil could be recommended as an inexpensive oily waste substance for biosurfactant production, and M. circinelloides could have the potential to treat waste frying oil. According to the results, the produced crude biosurfactant or fungal strain could be directly used for the mycoremediation of crude oil contamination in oil fields.

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Meza-Carmen, Victor, Jesús García-Soto, Laura Ongay-Larios, Roberto Coria, Mario Pedraza-Reyes, José Arnau, Georgina Reyna-Lopez y Guadalupe Martínez-Cadena. "Molecular characterization of a G protein α-subunit-encoding gene fromMucor circinelloides". Canadian Journal of Microbiology 52, n.º 7 (1 de julio de 2006): 627–35. http://dx.doi.org/10.1139/w06-010.

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Genes encoding the Gα subunit were cloned from Mucor circinelloides, a zygomycete dimorphic fungus. There are at least four genes that encode for Gα subunits, gpa1, gpa2, gpa3, and gpa4. The genes gpa1 and gpa3 were isolated and characterized, and their predicted products showed 36%–67% identity with Gα subunits from diverse fungi. Northern blot analysis of gpa3 showed that it is present in spores and constitutively expressed during mycelium development and during yeast–mycelium and mycelium–yeast transitions. However, during yeast cell growth, decreased levels of mRNA were observed. Sequence analysis of gpa3 cDNA revealed that Gpa3 encodes a polypeptide of 356 amino acids with a calculated molecular mass of 40.8 kDa. The deduced sequence of Gpa3 protein contains all the consensus regions of Gα subunits of the Gαi/o/tsubfamily except the cysteine near the C terminus for potential ADP-ribosylation by pertussis toxin. This cDNA was expressed in Escherichia coli and purified by affinity chromatography. Based on its electrophoretic mobility in SDS–PAGE, the molecular mass of the His6-tagged Gpa3 was 45 kDa. The recombinant protein was recognized by a polyclonal antibody against a fragment of a human Gαi/o/t. Furthermore, the recombinant Gpa3 was ADP-ribosylated by activated cholera toxin and [32P]NAD but not by pertussis toxin. These results indicate that in M. circinelloides the Gα subunit Gpa3 is expressed constitutively during differentiation.Key words: Gα-subunit-encoding genes, Mucor circinelloides, Gpa3 recombinant protein.

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Sathishkumar, Yesupatham, Kesavan Devarayan, Chan Ki, Kalyanaraman Rajagopal y Yang Soo Lee. "Shape-controlled extracellular synthesis of silver nanocubes by Mucor circinelloides". Materials Letters 159 (noviembre de 2015): 481–83. http://dx.doi.org/10.1016/j.matlet.2015.06.124.

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Díaz-Mínguez, José María, M. Angeles López-Matas y Arturo P. Eslava. "Complementary mating types of Mucor circinelloides show electrophoretic karyotype heterogeneity". Current Genetics 36, n.º 6 (16 de diciembre de 1999): 383–89. http://dx.doi.org/10.1007/s002940050513.

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Ghuman, Harlene, Alicia Shepherd-Roberts, Stephanie Watson, Malou Zuidscherwoude, Steve P. Watson y Kerstin Voelz. "Mucor circinelloides induces platelet aggregation through integrin αIIbβ3 and FcγRIIA". Platelets 30, n.º 2 (3 de enero de 2018): 256–63. http://dx.doi.org/10.1080/09537104.2017.1420152.

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Patiño-Medina, J. Alberto, David Vargas-Tejeda, Marco I. Valle-Maldonado, Viridiana Alejandre-Castañeda, Irvin E. Jácome-Galarza, Javier Villegas-Moreno, Rosa E. Nuñez-Anita, Martha I. Ramírez-Díaz, Rafael Ortiz-Alvarado y Victor Meza-Carmen. "Sporulation on blood serum increases the virulence of Mucor circinelloides". Microbial Pathogenesis 137 (diciembre de 2019): 103737. http://dx.doi.org/10.1016/j.micpath.2019.103737.

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Li, Charles H., Maria Cervantes, Deborah J. Springer, Teun Boekhout, Rosa M. Ruiz-Vazquez, Santiago R. Torres-Martinez, Joseph Heitman y Soo Chan Lee. "Sporangiospore Size Dimorphism Is Linked to Virulence of Mucor circinelloides". PLoS Pathogens 7, n.º 6 (16 de junio de 2011): e1002086. http://dx.doi.org/10.1371/journal.ppat.1002086.

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ADACHI, Takashi, Mika SAITO, Joji SASAKI, Yasuko KARASAWA, Hiroaki ARAKI, Kazunori HANADA y Sadafumi OMURA. "Microbial Hydroxylation of (-)-Eburnamonine by Mucor circinelloides and Streptomyces violens." CHEMICAL & PHARMACEUTICAL BULLETIN 41, n.º 3 (1993): 611–13. http://dx.doi.org/10.1248/cpb.41.611.

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López-Fernández, Loida, Marta Sanchis, Patricia Navarro-Rodríguez, Francisco E. Nicolás, Fátima Silva-Franco, Josep Guarro, Victoriano Garre, María Isabel Navarro-Mendoza, Carlos Pérez-Arques y Javier Capilla. "Understanding Mucor circinelloides pathogenesis by comparative genomics and phenotypical studies". Virulence 9, n.º 1 (18 de abril de 2018): 707–20. http://dx.doi.org/10.1080/21505594.2018.1435249.

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Alcalde, Eugenio, Enrique Cerdá-Olmedo y Salim Al-Babili. "Apocarotenoids produced from β-carotene by dioxygenases from Mucor circinelloides". Microbiology 165, n.º 4 (1 de abril de 2019): 433–38. http://dx.doi.org/10.1099/mic.0.000762.

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Navarro, E., J. Lorca-Pascual, M. Quiles-Rosillo, F. Nicolás, V. Garre, S. Torres-Martínez y R. Ruiz-Vázquez. "A negative regulator of light-inducible carotenogenesis in Mucor circinelloides". Molecular Genetics and Genomics 266, n.º 3 (noviembre de 2001): 463–70. http://dx.doi.org/10.1007/s004380100558.

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Arnau, Jóse, Lars Peter Jepsen y Per Strømani. "Integrative transformation by homologous recombination in the zygomycete Mucor circinelloides". Molecular and General Genetics MGG 225, n.º 2 (febrero de 1991): 193–98. http://dx.doi.org/10.1007/bf00269847.

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Arnau, Jos� y Per Str�man. "Gene replacement and ectopic integration in the zygomycete Mucor circinelloides". Current Genetics 23, n.º 5-6 (1993): 542–46. http://dx.doi.org/10.1007/bf00312649.

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STEWART, N. J., B. L. MUNDAY y T. HAWKESFORD. "Isolation of Mucor circinelloides from a case of ulcerative mycosis of platypus (Ornithorhynchus anatinus), and a comparison of the response of Mucor circinelloides and Mucor amphibiorum to different culture temperatures". Medical Mycology 37, n.º 3 (junio de 1999): 201–6. http://dx.doi.org/10.1046/j.1365-280x.1999.00221.x.

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