Rhodotorula is a common environmental yeast that is found in air, soil, lakes, ocean water, milk, and fruit juice. For more multimedia, look at rhodotorula on wikimedia commons. Rhodotorula species, part of the basidiomycota phylum, colonise plants, humans, and other mammals. Pdf on feb 1, 2018, chenghui wang and others published breakthrough. Previously considered nonpathogenic, rhodotorula species have emerged as opportunistic pathogens that have the ability to colonise and infect susceptible patients. The genus rhodotorula includes eight species, of which r. Rhodotorula species including rhodotorula minuta are emerging yeast pathogens defined particularly in immunocompromised patients. Unknown but in general terms is an infrequent agent of fungal infections in humans.
Jul, 2019 ebscohost serves thousands of libraries with premium essays, articles and other content including antifungal susceptibility profile of rhodotorula species from ahvaz. Contextual translation of rhodotorula into english. This is an updated paper focusing on the general epidemiological aspects of rhodotorula in humans, animals, and the environment. Materials and methods isolates the yeast species were isolated from the surfaces of. Identification of different species of rhodotorula using. Slim pdf is an incredibly lightweight free pdf reader.
Growth of isolated yeasts was tested against different fungicides. Taxonomy navigation sporidiobolaceae all lower taxonomy nodes 438 common name isynonym iother names i. The current study reports a case of onychomycosis caused by rhodotorula glutinis in a 74yearold immunocompetent female. Rhodotorula mucilaginosa is a common airborne contaminant of skin, lungs, urine and faeces. Species of pathogenic or potentially pathogenic fungi that are most frequently isolated from aquatic ecosystems belong to the following genera. This is usually due to saprophytic colonisation of catheters or dialysis machinery and removal of the source of contamination usually. Rhodotorula species are ubiquitous saprophytic yeasts that can be recovered from many. Rhodotorula mucilaginosa by rachel adams sometimes the invisible things in your home become visible, and you rather wish they wouldnt. While no cases of rhodotorula infection were reported in the medical literature before 1985, the number of infections increased after that time, most likely because of the wider use of intensive treatments and central venous catheters cvcs. Symptoms of rhodotorula bacteria infection may include fever, bacterial infection in sterile samples such as blood and septicemia or blood poisoning due to the infection.
We report a case of sepsis and meningoencephalitis caused by rhodotorula glutinis in a 20yearold female patient with systemic lupus erythematosus sle, which was diagnosed at autopsy. This distinctive color is the result of pigments that the yeast creates to block out certain wavelengths of light 620750 nm that would otherwise be damaging to the cell. Rhodotorula rubra is a common airborne contaminant of skin, lungs, urine and feces industrial uses mannan produced by rhodotorula is useful for serological diagnosis for leptospirosis a bacterial disease. Mohamed, mona abdelmageed, ashraf bakry abdelrazik, and samir abdelaziz ibrahim. Rhodotorula species are ubiquitous saprophytic yeasts that can be. Rhodotorula is a genus of unicellular pigmented yeasts, part of the division basidiomycota. Morphological, physiological and biochemical characterization indicated that this strain belonged to the genus rhodotorula. Rhodotorula mucilaginosa old name rhodotorula rubra natural habitat. Information and translations of rhodotorula in the most comprehensive dictionary definitions resource on the web. All you need to know about rhodotorula yeastinfection. Infeccoes causadas por rhodotorula by adrielly sayonara on prezi. Identification of different species of rhodotorula using internal transcribed spacers. A case of onychomycosis caused by rhodotorula glutinis.
On your shower curtain, on the bathtub grout, or even on your toothbrush, there might be a pink film slowly expanding and adding a little decorative color to your life. It is able to scavenge nitrogenous compounds from its environment remarkably well, growing even in air that has been carefully cleaned of any fixed nitrogen contaminants. Except for isolates 3 and 4, all produced sufficient growth at 35c to determine the mics of the antifungal agents at 72 h. Rhodotorula species are nutritionally nonfastidious, grow easily on most media, and are characterized by a rapid growth rate. Pdf breakthrough fungemia caused by rhodotorula mucilaginosa. Heterogeneity of the genus has made its classification difficult with five varieties having been recognized. Ebscohost serves thousands of libraries with premium essays, articles and other content including antifungal susceptibility profile of rhodotorula species from ahvaz. Previously considered nonpathogenic, rhodotorula species have emerged as opportunistic pathogens that have the ability to colonise and infect susceptible. Rhodotorula species produce the enzyme urease and do not ferment carbohydrates. Rhodotorula rubra is a common airborne contaminant of skin, lungs, urine and feces industrial uses mannan produced by rhodotorula is useful for serological diagnosis. Rhodotorula glutinis is the type species of the genus rhodotorula, a basidiomycetous genus of pink yeasts which contains 370 species. Sepsis and meningoencephalitis due to rhodotorula glutinis in. Among the few references to the pathogenicity of rhodotorula spp.
In this study the patient was a woman with a history of diabetes mellitus dm and uterus cancer, which was treated with chemotherapy following hysterectomy. It is readily identifiable by distinctive orangered colonies when grown on sda sabourauds dextrose agar. Previously, rhodotorula is considered a low virulence organism in comparison to candida or trichosporon. Biochemical response of rhodotorula mucilaginosa and. The effects of media supplementation with urea nitrogen or the commercial nutrient called nitrofos kl was also verified. Jeff, i was just recently diagnosed with having this species called rhodotorula from the stool sample given and although i know it is similar to candida can you get more specific on exactly what it is. Yeast isolates were identified as rhodotorula slooffiae with standard physiological methods and molecular analysis. Clinical and microbiological characteristics of rhodotorula. Rhodotorula species have been reported as a causative agent of opportunistic mycoses in immunocompromised hosts. All you need to know about rhodotorula february 24, 2016 by eric bakker nd although most people have not heard of the pathogen rhodotorula it seems that in the near future we will be hearing a lot more.
Terrestrial and aquatic, including marine habitats. Carotenoids are produced with typical concentrations ranging from 15 to 200 gg dry weight and. The mics for isolates 3 and 4 were determined on day 5 of growth at 30c. Rhodotorula species are ubiquitous saprophytic yeasts that can be recovered. Studies of fungemia have demonstrated the incidence of rhodotorula to be between 0. Costa department of infections and parasitic diseases, school of medicine, university of sao paulo, brazil. Rhodotorula is a genus of imperfect pinkcolored yeasts of the family cryptococcaceae, subfamily rhodotorulodae, which grow as globose budding fungi 1. Risk of fungemia due to rhodotorula and antifungal. Isolation of rhodotorula mucilaginosa from skin lesions in a. In korea, a single center has reported a rhodotorula fungemia incidence rate of 2. Catheterassociated rhodotorula mucilaginosa fungemia in an. Molecular taxonomic analysis based on the 26s rdna d1d2 domain and internal transcribed spacer its region. The following fungicides inhibited the growth of yeast isolates, and were not phytotoxic to apple shoots at concentrations.
Studies on effect of media components on growth and a. A basidiomyetous yeast strain ro203, which formed orangered colored colonies, was isolated from a sample of paddy rice crops at the ripe stage in japan. The rhodotorula rubra biomass and carotenoids production was evaluated in sugarcane juice, molasses, and syrup based media. These yeasts seem to be resistant to some therapeutic agents, especially to azoles and echinocandins galansanchez et al. Original carotenoid production by rhodotorula rubra. Today, the genus contains 46 species of which three have been described as rare human pathogens. Rhodotorula is an emerging opportunistic pathogen, particularly in immunocompromised patients. This page was last edited on 15 august 2019, at 17. It can be cultured from soil, water, milk, fruit juice, and air samples. They appear as round or oval budding cells under microscopy, and pseudohyphae are rarely present. In the present study, we used morphological and molecular methods based on the rdna region to identify the rhodotorula and sporidiobolus species. Apple tissue culture contamination by rhodotorula spp. Identification of different species of rhodotorula using internal transcribed.
Rhodotorula species are environmental basidiomycete yeasts that have emerged as a cause of. Pinova were contaminated with faint pink pigmented yeast. They include dermatitis in a cat, skin lesions in sealions and chickens which suffered skin problems. Occurrence and pathogenicity of the fungi rhodotorula spp. Themembers of this genus had been included by earlier investigators in the genus cryptococcus. Of the 10 rhodotorula isolates identified, 8 were rhodotorula mucilaginosa synonyms, r. Uncommon yeast infections in hematological patients medscape. Rhodotorula species are common environmental basidiomycetous yeasts, which can be found in soil, ocean and lake water, fruit juice and milk, and on shower curtains and toothbrushes. Inmarkedcontrast tothe predominantly positive results with cryptococci and rhodotorula spp. Rhodotorula definition of rhodotorula by medical dictionary. Text is available under the creative commons attributionsharealike license. Rhodotorula species at the candida diet, topic 1636493.