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Titolo:
Airborne fungal ecological niche determination as one of the possibilitiesfor indirect mycotoxin risk assessment in indoor air
Autore:
Vujanovic, V; Smoragiewicz, W; Krzysztyniak, K;
Indirizzi:
Univ Montreal, Inst Rech Biol Vegetale, Montreal, PQ H1X 2B2, Canada Univ Montreal Montreal PQ Canada H1X 2B2 le, Montreal, PQ H1X 2B2, Canada Univ Montreal, Dept Biol Sci, Montreal, PQ H1X 2B2, Canada Univ Montreal Montreal PQ Canada H1X 2B2 ci, Montreal, PQ H1X 2B2, Canada Univ Quebec, Dept Sci Biol, Montreal, PQ H3C 2P8, Canada Univ Quebec Montreal PQ Canada H3C 2P8 Biol, Montreal, PQ H3C 2P8, Canada
Titolo Testata:
ENVIRONMENTAL TOXICOLOGY
fascicolo: 1, volume: 16, anno: 2001,
pagine: 1 - 8
SICI:
1520-4081(200102)16:1<1:AFENDA>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
TEMPERATURE; SPORES; MOLDS;
Keywords:
airborne fungi; molds ecological niches; indoor air pollution; mycotoxin risk assessment;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Vujanovic, V Univ Montreal, Inst Rech Biol Vegetale, 4101 Rue Sherbrooke E, Montreal, PQ H1X 2B2, Canada Univ Montreal 4101 Rue Sherbrooke E MontrealPQ Canada H1X 2B2
Citazione:
V. Vujanovic et al., "Airborne fungal ecological niche determination as one of the possibilitiesfor indirect mycotoxin risk assessment in indoor air", ENVIRON TOX, 16(1), 2001, pp. 1-8

Abstract

Based on the microbiological analysis of air samples from occupied spaces,some possibilities for indirect risk assessment of mycotoxin-related health problems are proposed. Airborne fungi could be classified on the basis ofthe relationship between the two environmental factors and their combinations, i.e., temperature and water requirements (water activity a(w)). One type involves three different groups of molds, selected on the basis of the quantitative and qualitative information about the ability of fungi to sporulate under different environmental conditions: group (i), represented by Aspergillus nidulans, A. niger, and A. ochraceus, and characterized by sporulation which was more dependent on temperature than on water activity; (ii),represented by A. flavus and A. versicolor, in which sporulation was approximately equal and depended on both the temperature changes and a(w), alterations; and (iii), represented by Cladosporium sp., Penicillium cyclopium, and P. citrinum, in which sporulation depended more on alteration of the a(w), conditions than on temperature changes. Another type is characterized by four sporulation rates with two levels of mycotoxin risk accumulation in the spores (conidia) of each mold species: large (la) and moderate (Ib) sporulation rates with a risk of mycotoxin accumulation (a(w) greater than or equal to 86; t greater than or equal to 12 degreesC); rare sporulation (IIa) and absence of sporulation (llb), without risk of mycotoxin accumulation (a(w) greater than or equal to 86; t greater than or equal to 12 degreesC). In conclusion, providing a useful guide for two dimensions, temperature and water activity for each of the three phases of fungal growth, i.e. germination, growth, and sporulation, could be important for determination of thefundamental niche of each fungus and its ability to form or accumulate mycotoxin. Special emphasis should be given to the indirect mycotoxin risk assessment in heating, ventilation, and air conditioning systems. (C) 2001 by John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/21 alle ore 03:39:35