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Kanter, U. ; Heller, W. ; Durner, J. ; Winkler, J.B. ; Engel, M. ; Behrendt, H. ; Holzinger, A.* ; Braun, P.* ; Hauser, M.* ; Ferreira, F.* ; Mayer, K.F.X. ; Pfeifer, M. ; Ernst, D.

Molecular and immunological characterization of ragweed (Ambrosia artemisiifolia L.) pollen after exposure of the plants to elevated ozone over a whole growing season.

PLoS ONE 8:e61518 (2013)
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Climate change and air pollution, including ozone is known to affect plants and might also influence the ragweed pollen, known to carry strong allergens. We compared the transcriptome of ragweed pollen produced under ambient and elevated ozone by 454-sequencing. An enzyme-linked immunosorbent assay (ELISA) was carried out for the major ragweed allergen Amb a 1. Pollen surface was examined by scanning electron microscopy and attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR), and phenolics were analysed by high-performance liquid chromatography. Elevated ozone had no influence on the pollen size, shape, surface structure or amount of phenolics. ATR-FTIR indicated increased pectin-like material in the exine. Transcriptomic analyses showed changes in expressed-sequence tags (ESTs), including allergens. However, ELISA indicated no significantly increased amounts of Amb a 1 under elevated ozone concentrations. The data highlight a direct influence of ozone on the exine components and transcript level of allergens. As the total protein amount of Amb a 1 was not altered, a direct correlation to an increased risk to human health could not be derived. Additional, the 454-sequencing contributes to the identification of stress-related transcripts in mature pollen that could be grouped into distinct gene ontology terms.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Atmospheric Co2 ; Mugwort Pollen ; Abiotic Stress ; Grass-pollen ; Birch Pollen ; Allergen ; Release ; Expression ; Responses ; Pectin
Language english
Publication Year 2013
HGF-reported in Year 2013
ISSN (print) / ISBN 1932-6203
Journal PLoS ONE
Quellenangaben Volume: 8, Issue: 4, Pages: , Article Number: e61518 Supplement: ,
Publisher Public Library of Science (PLoS)
Publishing Place Lawrence, Kan.
Reviewing status Peer reviewed
POF-Topic(s) 30202 - Environmental Health
20402 - Sustainable Plant Production
80000 - German Center for Lung Research
Research field(s) Environmental Sciences
Enabling and Novel Technologies
Allergy
PSP Element(s) G-504900-001
G-504700-001
G-503790-001
G-501800-541
G-504991-001
PubMed ID 23637846
Scopus ID 84876327613
Erfassungsdatum 2013-04-22