Occurrence of filamentous fungi and yeasts in three different drinking water sources

Pereira, Vanessa J.; Basílio, Maria Carmo; Fernandes, Dalila G F; Domingues, Miguel; Paiva, João; Benoliel, Maria João; Crespo, Maria Teresa Barreto; Romão, M. V. San

doi:10.1016/j.watres.2009.05.024

Cited by 105 publications

(58 citation statements)

References 21 publications

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“…16 C. Lipolytica, Rhodotorula sp and Trichosporon are among emerging opportunistic pathogens, particularly in immunocompromised patients. [18][19][20] Some cases of fungemia associated with catheters, endocarditis, peritonitis, meningitis, and endophthalmitis are infections caused by these fungi and resistances to antifungal agents have been reported. 9,19,20 …”

Section: Discussionmentioning

confidence: 99%

Yeasts and yeast-like fungal contaminants of water used for domestic purposes in Jos, Nigeria

Ayanbimpe

Abbah

Ior

2013

Microbiol Res (Pavia)

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Water used for domestic purposes is ideally required to be free from contaminants. Various contaminants have frequently affected the quality of such water. Water samples were obtained from 150 sources including 72 wells, 60 streams, 17 taps, and one borehole, randomly selected from five residential areas in Jos, Nigeria. Structured questionnaires and one-toone interview was used to obtain information on features of location and use of facilities in each area. Eighty (53.3%) water sources were contaminated, predominantly wells (70.8%). The locations (identified in code) with the highest number of contaminated sources were AGO (60.0%), GBU (56.7%) and FGD (56.7%). AGD and FGD also had the highest ratio of households to one water source (25:1). Eightytwo fungi were isolated, predominantly Candida tropicalis (23.2%), Candida lipolytica (10.9%) and Rhodotorula sp (9.7%). Candida lipolytica was the highest (42.9%) contaminant in tap water. Rhodotorula sp was found in all types of water sources sampled. Type of water source had a significant effect (P<0.05) on the presence of some fungi in the water. The residential area (Location) had a significant effect on contamination of water sources by some yeasts. Water sources for domestic use in Jos are contaminated by yeasts and yeast-like fungi. Frequency of use, exposure of the facility to dirt, and contaminations of surroundings contribute to the occurrence of fungi in water sources and, by implication, the prevalence of fungal infections.

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Section: Discussionmentioning

confidence: 99%

Yeasts and yeast-like fungal contaminants of water used for domestic purposes in Jos, Nigeria

Ayanbimpe

Abbah

Ior

2013

Microbiol Res (Pavia)

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“…In a hyper-endemic former Yugoslav community, nephrotoxic species of Penicillium were also isolated from air samples (121). (122). Aflatoxins produced by Aspergillus fl avus were also detected in water sampled from a cold water storage tank (123).…”

Section: Exposure Through Inhalationmentioning

confidence: 99%

Ochratoxin A and Aristolochic Acid Involvement in Nephropathies and Associated Urothelial Tract Tumours

Pfohl‐Leszkowicz

2009

Archives of Industrial Hygiene and Toxicology

104

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This review addresses the unresolved aetiology of several nephropathies and associated upper tract tumours diagnosed all over the world, but especially in the Balkan regions. Studies conducted over the last 35 years point to mycotoxins, mainly ochratoxin A (OTA) as the main culprit. Recent theories however have implicated aristolochic acids (AA). The aim of this review is to put forward arguments in favour of the mycotoxin theory and to show the incoherence of the AA theory. It discusses the differences between the epidemiology of Balkan endemic nephropathy (BEN) and aristolochic acid nephropathy (AAN); OTA and AA carcinogenicity; clinical and pathological effects induced by OTA and AA; sources of OTA contamination (food, air, drinking water); OTA-and AA-DNA adduct formation; the role of genetic polymorphisms ; and the risk for young children.

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“…Wash water from apple packing and processing houses can contain as much as 10 4 conidia mL -1 of P. expansum and often inadvertently end up in the ground near such facilities. The presence of fungi in drinking water is widespread (Sammon et al 2010;Pereira et al 2009;Hageskal et al 2006). Penicillium species appear to be frequent inhabitants of tap water based on surveys carried out in several countries (reviewed by Siqueira et al 2011); thus, they readily survive water treatment practices (Hageskal et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Penicillium species appear to be frequent inhabitants of tap water based on surveys carried out in several countries (reviewed by Siqueira et al 2011); thus, they readily survive water treatment practices (Hageskal et al 2006). The original source of these fungi is most frequently surface water (Hageskal et al 2007;Pereira et al 2009), which contains large amounts of organic material. Since patulin-producing Penicillium species also have been isolated from the marine environment (Vansteelandt et al 2012), it is not clear whether the water from apple packing houses is directly responsible for the contamination of drinking water.…”

Section: Introductionmentioning

confidence: 99%

Two rapid assays for screening of patulin biodegradation

Wright

Felice

Ianiri

et al. 2013

Int. J. Environ. Sci. Technol.

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The mycotoxin patulin is produced by the blue mould pathogen Penicillium expansum in rotting apples during postharvest storage. Patulin is toxic to a wide range of organisms, including humans, animals, fungi and bacteria. Wash water from apple packing and processing houses often harbours patulin and fungal spores, which can contaminate the environment. Ubiquitous epiphytic yeasts, such as Rhodosporidium kratochvilovae strain LS11 which is a biocontrol agent of P. expansum in apples, have the capacity to resist the toxicity of patulin and to biodegrade it. Two non-toxic products are formed. One is desoxypatulinic acid. The aim of the work was to develop rapid, high-throughput bioassays for monitoring patulin degradation in multiple samples. Escherichia coli was highly sensitive to patulin, but insensitive to desoxypatulinic acid. This was utilized to develop a detection test for patulin, replacing time-consuming thin layer chromatography or high-performance liquid chromatography. Two assays for patulin degradation were developed, one in liquid medium and the other in semi-solid medium. Both assays allow the contemporary screening of a large number of samples. The liquid medium assay utilizes 96-well microtiter plates and was optimized for using a minimum of patulin. The semisolid medium assay has the added advantage of slowing down the biodegradation, which allows the study and isolation of transient degradation products. The two assays are complementary and have several areas of utilization, from screening a bank of microorganisms for biodegradation ability to the study of biodegradation pathways.

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Occurrence of filamentous fungi and yeasts in three different drinking water sources

Cited by 105 publications

References 21 publications

Yeasts and yeast-like fungal contaminants of water used for domestic purposes in Jos, Nigeria

Yeasts and yeast-like fungal contaminants of water used for domestic purposes in Jos, Nigeria

Ochratoxin A and Aristolochic Acid Involvement in Nephropathies and Associated Urothelial Tract Tumours

Two rapid assays for screening of patulin biodegradation

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