keyword
MENU ▼
Read by QxMD icon Read
search

rhodotorula

keyword
https://www.readbyqxmd.com/read/27895288/some-biological-activities-of-pigments-extracted-from-micrococcus-roseus-ptcc-1411-and-rhodotorula-glutinis-ptcc-5257
#1
Hossein Rostami, Hassan Hamedi, Mahmoud Yolmeh
The importance of replacing synthetic pigments with natural types is increasing day by day in the food industry due to the harmful effects of some synthetic pigments. Microorganisms are a major source of natural pigments, which nowadays have attracted the attention of researchers. In this study, carotenoid pigments were produced by Micrococcus roseus and Rhodotorula glutinis, and some of their biological properties such as antimicrobial, antioxidant, anticancer, and anti-inflammatory activities were evaluated...
December 2016: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/27887615/developing-a-set-of-strong-intronic-promoters-for-robust-metabolic-engineering-in-oleaginous-rhodotorula-rhodosporidium-yeast-species
#2
Yanbin Liu, Sihui Amy Yap, Chong Mei John Koh, Lianghui Ji
BACKGROUND: Red yeast species in the Rhodotorula/Rhodosporidium genus are outstanding producers of triacylglyceride and cell biomass. Metabolic engineering is expected to further enhance the productivity and versatility of these hosts for the production of biobased chemicals and fuels. Promoters with strong activity during oil-accumulation stage are critical tools for metabolic engineering of these oleaginous yeasts. RESULTS: The upstream DNA sequences of 6 genes involved in lipid biosynthesis or accumulation in Rhodotorula toruloides were studied by luciferase reporter assay...
November 25, 2016: Microbial Cell Factories
https://www.readbyqxmd.com/read/27871376/optimization-of-oligomeric-enzyme-activity-in-ionic-liquids-using-rhodotorula-glutinis-yeast-phenylalanine-ammonia-lyase
#3
Christiaan C Barron, Brandon J D Sponagle, Pugazhendhi Arivalagan, Godwin B D'Cunha
Phenylalanine ammonia lyase (E.C.4.3.1.24, PAL) activity of Rhodotorula glutinis yeast has been demonstrated in four commonly used ionic liquids. PAL forward reaction was carried out in 1-butyl-3-methylimidazolium methyl sulfate ([BMIM][MeSO4]), 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]), 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) and 1-butyl-3-methylimidazolium lactate ([BMIM][lactate]). Our experiments have revealed that PAL is catalytically active in ionic liquids and the enzyme activity in ([BMIM][PF6]) is comparable to that obtained in aqueous buffer medium...
January 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/27837315/cloning-and-characterization-of-decaprenyl-diphosphate-synthase-from-three-different-fungi
#4
Daisuke Moriyama, Tomohiro Kaino, Kazuyoshi Yajima, Ryota Yanai, Yasuhiro Ikenaka, Junzo Hasegawa, Motohisa Washida, Hirokazu Nanba, Makoto Kawamukai
Coenzyme Q (CoQ) is composed of a benzoquinone moiety and an isoprenoid side chain of varying lengths. The length of the side chain is controlled by polyprenyl diphosphate synthase. In this study, dps1 genes encoding decaprenyl diphosphate synthase were cloned from three fungi: Bulleromyces albus, Saitoella complicata, and Rhodotorula minuta. The predicted Dps1 proteins contained seven conserved domains found in typical polyprenyl diphosphate synthases and were 528, 440, and 537 amino acids in length in B. albus, S...
November 11, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27818654/four-inducible-promoters-for-controlled-gene-expression-in-the-oleaginous-yeast-rhodotorula-toruloides
#5
Alexander M B Johns, John Love, Stephen J Aves
Rhodotorula (Rhodosporidium) toruloides is an oleaginous yeast with great biotechnological potential, capable of accumulating lipid up to 70% of its dry biomass, and of carotenoid biosynthesis. However, few molecular genetic tools are available for manipulation of this basidiomycete yeast and its high genomic GC content can make routine cloning difficult. We have developed plasmid vectors for transformation of R. toruloides which include elements for Saccharomyces cerevisiae in-yeast assembly; this method is robust to the assembly of GC-rich DNA and of large plasmids...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27801509/anti-rhodotorula-activity-of-mycophenolic-acid-enhanced-in-the-presence-of-polyene-antibiotic-nystatin
#6
Hiroshi Kinoshita, Sarach Wongsuntornpoj, Fumio Ihara, Takuya Nihira
Rhodotorula species are opportunistic pathogens, which cause not only systemic fungemia but other localized infections. Despite the serious side effects such as nephrotoxicity and hypokalemia, amphotericin B (a polyene antifungal) has been commonly prescribed for Rhodotorula infection because Rhodotorula species are resistant against a candin family of antifungal agents. In this study, novel active compounds against Rhodotorula species were screened from the extracts of entomopathogenic fungi based on the synergistic effect of polyene nystatin (NYS), which causes efficient targeting of compounds due to the increased permeability through the fungal cell membrane...
November 1, 2016: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/27790744/a-case-of-cutaneous-rhodotorula-infection-mimicking-cryptococcosis
#7
S M C George, M Quante, M D Cubbon, A R MacDiarmaid-Gordon, E J Topham
Rhodotorula is a ubiquitous environmental and commensal yeast, and an emerging opportunistic pathogen, particularly in immunocompromised individuals. Clinical infections with Rhodotorula have been increasingly recognized over the past 30 years; however, infections in solid-organ transplant recipients are uncommon, and cutaneous manifestations have rarely been reported. We describe a 59-year-old male renal transplant recipient, who developed cutaneous infection with Rhodotorula upon failure of his graft and commencement of haemodialysis...
October 27, 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27770301/characterization-of-basidiomycetous-yeasts-in-hypersaline-soils-of-the-urmia-lake-national-park-iran
#8
Lachin Mokhtarnejad, Mahdi Arzanlou, Asadollah Babai-Ahari, Simone Di Mauro, Andrea Onofri, Pietro Buzzini, Benedetta Turchetti
Urmia Lake, located in northwest Iran, is an oligotrophic and extremely hypersaline habitat that supports diverse forms of life. Owing to its unique biodiversity and special environmental conditions, Urmia Lake National Park has been designated as one of the biosphere reserves by UNESCO. This study was aimed to characterize basidiomycetous yeasts in hypersaline soils surrounding the Urmia Lake National Park using a polyphasic combination of molecular and physiological data. Soil samples were collected from eight sites in Lake Basin and six islands insides the lake...
October 21, 2016: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/27747631/real-time-pcr-analysis-of-fungal-organisms-and-bacterial-species-at-peri-implantitis-sites
#9
Frank Schwarz, Kathrin Becker, Sebastian Rahn, Andrea Hegewald, Klaus Pfeffer, Birgit Henrich
BACKGROUND: The potential role of fungal organisms and their co-aggregation with either periodontopathogens or opportunistic pathogens at peri-implantitis sites is unknown. The aim of the present study was to qualitatively/quantitatively analyze and correlate fungal organisms and bacterial species at peri-implantitis sites. METHODS: In a total of 29 patients, submucosal/subgingival plaque samples were collected at peri-implantitis and healthy implant sites as well as teeth with a history of periodontitis (controls)...
December 2015: Int J Implant Dent
https://www.readbyqxmd.com/read/27669091/multiplatform-mass-spectrometry-based-approach-identifies-extracellular-glycolipids-of-the-yeast-rhodotorula-babjevae-ucdfst-04-877
#10
Tomas Cajka, Luis A Garay, Irnayuli R Sitepu, Kyria L Boundy-Mills, Oliver Fiehn
A multiplatform mass spectrometry-based approach was used for elucidating extracellular lipids with biosurfactant properties produced by the oleaginous yeast Rhodotorula babjevae UCDFST 04-877. This strain secreted 8.6 ± 0.1 g/L extracellular lipids when grown in a benchtop bioreactor fed with 100 g/L glucose in medium without addition of hydrophobic substrate, such as oleic acid. Untargeted reversed-phase liquid chromatography-quadrupole/time-of-flight mass spectrometry (QTOFMS) detected native glycolipid molecules with masses of 574-716 Da...
September 26, 2016: Journal of Natural Products
https://www.readbyqxmd.com/read/27637948/oleaginous-yeasts-from-ethiopia
#11
Tamene Milkessa Jiru, Dawit Abate, Nicholas Kiggundu, Carolina Pohl, Marizeth Groenewald
Oleaginous microorganisms can produce high amounts of oil (>20 % of their biomass) under suitable cultivation conditions. In this research work 200 samples were collected from soil, plant surfaces (leaves, flowers and fruits), waste oils from traditional oil milling houses and dairy products (cheese, milk and yoghurt) in Ethiopia. Three hundred and forty yeast colonies were isolated from these samples. By applying Sudan III staining tests, 18 strains were selected as possible oleaginous yeasts. The 18 strains were identified and characterized for their lipid production as a feedstock for biodiesel production in the future...
December 2016: AMB Express
https://www.readbyqxmd.com/read/27619713/heterotrophic-cultivation-of-chlorella-pyrenoidosa-using-sucrose-as-the-sole-carbon-source-by-co-culture-with-rhodotorula-glutinis
#12
Shikai Wang, Yong Wu, Xu Wang
Heterotrophic cultivation of microalgae is a feasible alternative strategy to avoid the light limitation of photoautotrophic culture, but the heterotrophic utilization of disaccharides is difficult for microalgae. Aimed at this problem, a co-culture system was developed by mix culture of C. pyrenoidosa and R. glutinis using sucrose as the sole carbon source. In this system, C. pyrenoidosa could utilize glucose and fructose which were hydrolyzed from sucrose by R. glutinis. The highest specific growth rate and final cell number proportion of algae was 1...
November 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27618652/neonatal-gut-microbiota-associates-with-childhood-multisensitized-atopy-and-t-cell-differentiation
#13
Kei E Fujimura, Alexandra R Sitarik, Suzanne Havstad, Din L Lin, Sophia Levan, Douglas Fadrosh, Ariane R Panzer, Brandon LaMere, Elze Rackaityte, Nicholas W Lukacs, Ganesa Wegienka, Homer A Boushey, Dennis R Ownby, Edward M Zoratti, Albert M Levin, Christine C Johnson, Susan V Lynch
Gut microbiota bacterial depletions and altered metabolic activity at 3 months are implicated in childhood atopy and asthma. We hypothesized that compositionally distinct human neonatal gut microbiota (NGM) exist, and are differentially related to relative risk (RR) of childhood atopy and asthma. Using stool samples (n = 298; aged 1-11 months) from a US birth cohort and 16S rRNA sequencing, neonates (median age, 35 d) were divisible into three microbiota composition states (NGM1-3). Each incurred a substantially different RR for multisensitized atopy at age 2 years and doctor-diagnosed asthma at age 4 years...
October 2016: Nature Medicine
https://www.readbyqxmd.com/read/27568366/lipids-hemoproteins-and-carotenoids-in-alive-rhodotorula-mucilaginosa-cells-under-pesticide-decomposition-raman-imaging-study
#14
Marta Z Pacia, Jan Pukalski, Katarzyna Turnau, Malgorzata Baranska, Agnieszka Kaczor
Various species of yeasts are gaining attention as producers of nutraceuticals and biofuels and due to their capacity to biodegrade chemical waste. Rhodotorula mucilaginosa is one of the most oleaginous species of yeast, an efficient de novo carotenoid producer and was reported to be capable of decomposing of organic pesticides. In this work we studied the influence of a toxic pesticide, diazinone, on production of storage (lipids) and protective (carotenoids, hemoproteins) compounds by Rh. mucilaginosa alive cells with the help of Raman imaging...
December 2016: Chemosphere
https://www.readbyqxmd.com/read/27544667/degradation-capacities-of-bacteria-and-yeasts-isolated-from-the-gut-of-dendroctonus-rhizophagus-curculionidae-scolytinae
#15
Carlos I Briones-Roblero, Roberto Rodríguez-Díaz, José A Santiago-Cruz, Gerardo Zúñiga, Flor N Rivera-Orduña
Bark beetles (Curculionidae: Scolytinae) feed on the xylem and phloem of their host, which are composed of structural carbohydrates and organic compounds that are not easily degraded by the insects. Some of these compounds might be hydrolyzed by digestive enzymes produced by microbes present in the gut of these insects. In this study, we evaluated the enzymatic capacity of bacteria (Acinetobacter lwoffii, Arthrobacter sp., Pseudomonas putida, Pseudomonas azotoformans, and Rahnella sp.) and yeasts (Candida piceae, Candida oregonensis, Cyberlindnera americana, Zygoascus sp...
August 20, 2016: Folia Microbiologica
https://www.readbyqxmd.com/read/27529959/-generic-variety-and-monitoring-of-the-drug-sensitivity-of-the-mycotic-microflora-in-patients-with-bronchopulmonary-diseases
#16
(no author information available yet)
Drug resistance among yeasts and mycelial fungi remains a serious problem when therapy for deep mycoses is chosen. The generic variety of fungal cultures obtained from the sputa of 148 patients with various bronchopulmonary diseases in 1998-2008 was assessed. Most (n = 113) isolates were yeasts of the genus Candida and 39 isolates were mycelial fungi of the genus Aspergillus. The fungi of the genera Geotrichum, Rhodotorula, Saccharomyces, Kluyveromyces, Penicillium, Cryptococcus, and Mucor were much less common...
2010: Tuberkulez i Bolezni Legkikh
https://www.readbyqxmd.com/read/27518570/yeasts-from-macroalgae-and-lichens-that-inhabit-the-south-shetland-islands-antarctica
#17
Alysson Wagner Fernandes Duarte, Michel Rodrigo Zambrano Passarini, Tiago Palladino Delforno, Franciane Maria Pellizzari, Caio Vinicius Zecchin Cipro, Rosalinda Carmela Montone, Maria Virginia Petry, Jair Putzke, Luiz Henrique Rosa, Lara Durães Sette
Antarctic terrestrial ecosystems are largely dominated by lichens, while shallow coastal environments are mainly covered by macroalgae. The aim of this study was to isolate and to evaluate the diversity of yeasts in different species of macroalgae and lichens collected in South Shetland Islands, Antarctica. A total of 405 yeasts were recovered (205 from macroalgae and 200 from lichens). The yeast community from macroalgae was most diversity than the yeast community from lichen. The dominance index was similar for both substrates...
August 12, 2016: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/27497064/a-potential-contribution-of-the-less-negatively-charged-cell-wall-to-the-high-aluminum-tolerance-of-rhodotorula-taiwanensis-rs1
#18
Zhen Min Hu, Xue Qiang Zhao, Xue Min Bao, Chao Wang, Wei Wang, Lu Zheng, Ping Lan, Ren Fang Shen
Rhodotorula taiwanensis RS1 (Rt) is a high-aluminum (Al)-tolerant yeast that can survive Al at concentrations up to 200 mM. In this study, we compared Rt with an Al-sensitive congeneric strain, R. mucilaginosa AKU 4812 (Rm) and Al sensitive mutant 1 (alsm1) of Rt, to explore the Al tolerance mechanisms of Rt. The growth of Rm was completely inhibited by 1 mM Al, but that of Rt was not inhibited until Al concentration was more than 70 mM. The growth of alsm1 was inhibited much more by 70 mM and 100 mM Al than that of Rt...
August 6, 2016: Yeast
https://www.readbyqxmd.com/read/27495321/fungemia-due-to-rare-opportunistic-yeasts-data-from-a-population-based-surveillance-in-spain
#19
Mario Fernández-Ruiz, Jesús Guinea, Mireia Puig-Asensio, Óscar Zaragoza, Benito Almirante, Manuel Cuenca-Estrella, José María Aguado
Fungemia due to rare yeasts constitutes an emerging but poorly investigated condition. Data on risk factors, clinical features, therapy, and outcome of episodes of fungemia due to rare (non-Candida, non-Cryptococcus) yeasts were analyzed in a population-based surveillance program conducted in 29 Spanish hospitals between May 2010 and April 2011. Species identification (DNA sequencing) and antifungal susceptibility testing (EUCAST and CLSI methods) were centrally performed. Fourteen out of 767 episodes of fungemia (1...
August 4, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27474110/improvement-in-extracellular-protease-production-by-the-marine-antarctic-yeast-rhodotorula-mucilaginosa-l7
#20
Luciana C S Chaud, Luciana D Lario, Rafaella C Bonugli-Santos, Lara D Sette, Adalberto Pessoa Junior, Maria das Graças de A Felipe
Microorganisms from extreme and restrictive eco systems, such as the Antarctic continent, are of great interest due to their ability to synthesize products of commercial value. Among these, enzymes from psychrotolerant and psychrophilic microorganisms offer potential economical benefits due to their high activity at low and moderate temperatures. The cold adapted yeast Rhodotorula mucilaginosa L7 was selected out of 97 yeasts isolated from Antarctica as having the highest extracellular proteolytic activity in preliminary tests...
December 25, 2016: New Biotechnology
keyword
keyword
116952
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"