Air-borne fungi at Doha, Qatar

被引：45

作者：

Mohammed I.A. ^{[1
]}

Streutker C.J. ^{[1
,2
]}

Riddell R.H. ^{[1
,3
]}

机构：

[1] Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON

[2] Department of Laboratory Medicine, St. Michael’s Hospital, Toronto, ON

[3] Department of Pathology and Laboratory Medicine, Mt. Sinai Hospital, Toronto, ON

来源：

Aerobiologia | 2002年 / 18卷 / 3-4期

关键词：

Effect of wind velocity and direction; Seasonal and diurnal variations;

D O I：

10.1023/A:1021344307205

中图分类号：

学科分类号：

摘要：

Thirty-five genera and 73 species, were identified from 312 daily exposures set up during the period March 1997-March 1998. The total fungal catch exhibited two peaks in July and December 1997 and a trough in February 1998. Cladosporium (6 spp. 40.1% of total fungi), Alternaria (4 spp., 21%) and Ulocladium (4 spp., 9.2%) were the main components of air-borne fungi, and the commonest species were Cladosporium. sphaerospermum (29.7%), C. cladosporioides (6.9%), Alternaria. alternata (13.9%) and U. atrum (5%). The predominance of these dark-coloured fungi in air is discussed and is attributed to one or both of two hypotheses. Aspergillus (9 spp., 4.3%) and Penicillium (8 spp., 3.95%) came next and were represented mainly by A.niger (1.3%) and P. chrysogenum (2.4%). Spore showers of C. cladosporioides, C. sphaerospermum, Penicillium chrysogenum and Myrothecium verrucaria were noticed with no regular seasonal pattern. The monthly number of species ran almost parallel to the total count of fungi. The broadest species spectrum (25-29 spp.) was recorded in the summer months May-August 1997 and the narrowest (11-12 spp.) in February and March 1998. The highest monthly wind velocity was regularly associated with higher fungal colony counts than in case of the lowest velocity. On the other hand, wind direction did not exhibit any regular correlation either with the colony counts of fungi or with the wind velocity. High wind velocity could bring more fungal spores to be sedimented on the surface of exposed agar. Diurnal fluctuations of fungal spores of fungi displayed one peak at 12 noon when the highest temperature and wind velocity, and the least relative humidity were recorded and one trough at midnight.

引用

页码：175 / 183

页数：8

共 45 条

[1]

Abdel-Gawad K.M., Further Studies on the Fungal Flora of Phyllosphere and Phylloplane of Some Plants, (1984)

[2]

Abdel-Fattah H.M., Moubasher A.H., Swelim M.A., Studies on air-borne fungi at Qena. II. Diurnal fluctuations, Zeit Allg Mikro, 21, pp. 177-179, (1981)

[3]

Abdel-Hafez S.I.I., Survey of air-borne fungus spores at Taif, Saudi Arabia, Mycopathologia, 88, pp. 39-44, (1984)

[4]

Abdel-Hafez S.I.I., Moubasher A.H., Barakat A., Seasonal variations of fungi of outdoor air and sedimented dust at Assiut region, Upper Egypt, Grana, 32, pp. 115-121, (1993)

[5]

Abu-El-Souod S.M., Studies on Fungus Air-spora in Egypt, (1974)

[6]

Arianayagam S., Jayalakshmi P., Soo-Hoo T.S., Pulmonary aspergilloma. Case reports from Malaysia, Mycopathologia, 93, pp. 151-153, (1986)

[7]

Banerjee U.C., Weber P., Ruffin J., Banerjee S., Airborne fungi survey of some residences in Durham, North Carolina, U.S.A., Grana, 26, pp. 103-108, (1987)

[8]

Batanouny K.H., Ecology and Flora of Qatar, (1981)

[9]

Beaumont F., Kauffman H.F., Sluiter H.J., De Fries K., Sequential sampling of fungal air spores inside and outside the homes of mould-sensitive, asthmatic patients: A search for a relationship to obstructive reactions, Ann Allergy, 55, pp. 740-746, (1981)

[10]

Bhatti M.A.R., Diurnal periodicity and the effect of meteorological factors on air-borne fungus flora-Pak, J Bot, 8, pp. 37-39, (1976)

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