Comparison between urban and rural pollen of Chenopodium alba and characterization of adhered pollutant aerosol particles

被引：29

作者：

Guedes, A. ^{[2
,3
]}

Ribeiro, N. ^{[1
,4
]}

Ribeiro, H. ^{[1
,4
]}

Oliveira, M. ^{[1
,4
]}

Noronha, F. ^{[2
,3
]}

Abreu, I. ^{[1
,4
]}

机构：

[1] FCUP, Dept Bot, P-4150 Oporto, Portugal

[2] Univ Porto, Ctr Geol, GeoREMAT, Oporto, Portugal

[3] FCUP, Dept Geol, P-4150 Oporto, Portugal

[4] Univ Porto, Ctr Geol, ENVISED, Oporto, Portugal

来源：

JOURNAL OF AEROSOL SCIENCE | 2009年 / 40卷 / 01期

关键词：

Pollen; Chenopodium alba; Protein content; Raman spectroscopy; MICRO-RAMAN SPECTROSCOPY; CARBON; SOOT;

D O I：

10.1016/j.jaerosci.2008.07.012

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work, the structure and protein profile of Chenopodium alba pollen samples collected in rural and urban environments were compared. Pollen structure was studied using light and scanning electron microscopy and the soluble protein profile was investigated by means of biochemical analyses (SDS-PAGE). The rural pollen has the opercules well defined while in the urban pollen there is a fine film covering its wall, and opercules are deformed. A decrease in the protein content in the urban pollen and different protein profiles were observed. Micro-Raman spectroscopic studies allowed the identification of carbon-containing particles in the urban pollen wall as well as its morphology and size. The results of this study indicate that the particles present in the urban air are diesel exhaust particles that are adsorbed and accumulated on the Chenopodium alba pollen. These particles can contribute for modifying their structure and protein content. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：81 / 86

页数：6

共 16 条

[1] Allergenic pollen in the city of Porto (Portugal) [J].

Abreu, I ;

Ribeiro, H .

ALLERGY, 2005, 60 (11) :1452-1453

[2]

Armentia A, 2002, Allergol Immunopathol (Madr), V30, P218

[3] Recombinant expression, purification and cross-reactivity of chenopod profilin:: rChe a 2 as a good marker for profilin sensitization [J].

Barderas, R ;

Villalba, M ;

Rodríguez, R .

BIOLOGICAL CHEMISTRY, 2004, 385 (08) :731-737

[4] Identification and characterization of Che a 1 allergen from Chenopodium album pollen [J].

Barderas, R ;

Villalba, M ;

Lombardero, M ;

Rodríguez, R .

INTERNATIONAL ARCHIVES OF ALLERGY AND IMMUNOLOGY, 2002, 127 (01) :47-54

[5]

BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3

[6] Raman spectroscopy of carbon-containing particles [J].

Escribano, R ;

Sloan, JJ ;

Siddique, N ;

Sze, N ;

Dudev, T .

VIBRATIONAL SPECTROSCOPY, 2001, 26 (02) :179-186

[7] Characterization of fly ash from a power plant and surroundings by micro-Raman spectroscopy [J].

Guedes, A. ;

Valentim, B. ;

Prieto, A. C. ;

Sanz, A. ;

Flores, D. ;

Noronha, F. .

INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2008, 73 (3-4) :359-370

[8] Characterisation of dispersed organic matter from lower Palaeozoic metasedimentary rocks by organic petrography, X-ray diffraction and micro-Raman spectroscopy analyses [J].

Guedes, A ;

Noronha, F ;

Prieto, AC .

INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2005, 62 (04) :237-249

[9]

Heintzenberg J., 1999, J AEROSOL SCI, V30, pS907, DOI [DOI 10.1016/S0021-8502(99)80464-9, 10.1016/S0021-8502(99)80464-9]

[10]

KELLER S, 1997, J AEROSOL SCI, V28, pS609

← 1 2 →