ArticleEnvironmental health perspectives2010
Elevated atmospheric carbon dioxide concentrations amplify Alternaria alternata sporulation and total antigen production.
Article in Environmental health perspectives, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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Who cites it
43 citing papers in PubMed, 141 citations in OpenAlex.
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- Divergent Trends in the Prevalence of Children's Asthma, Rhinitis and Atopic Dermatitis and Environmental Influences in the Urban Setting of Zagreb, Croatia.Children (Basel, Switzerland) · 2022Article
- Fungal communities in soils under global change.Studies in mycology · 2022Article
- Impact of Fungal Spores on Asthma Prevalence and Hospitalization.International journal of molecular sciences · 2022Review
- Climate, Carbon Dioxide, and Plant-Based Aero-Allergens: A Deeper Botanical Perspective.Frontiers in allergy · 2021Review
- Diversity, Concentration and Dynamics of Culturable Fungal Bioaerosols at Doha, Qatar.International journal of environmental research and public health · 2020Article
- An Overview of Rising CO₂ and Climatic Change on Aeroallergens and Allergic Diseases.Allergy, asthma & immunology research · 2020Review
- The Clinical Utility of Pollen Counts.Clinical reviews in allergy & immunology · 2019Review
- Temporal variability in the allergenicity of airborne Alternaria spores.Medical mycology · 2019Article
- Environment and Host-Genetic Determinants in Early Development of Allergic Asthma: Contribution of Fungi.Frontiers in immunology · 2019Review
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlthough the effect of elevated carbon dioxide (CO2) concentration on pollen production has been established in some plant species, impacts on fungal sporulation and antigen production have not been elucidated.
objectiveOur purpose was to examine the effects of rising atmospheric CO2 concentrations on the quantity and quality of fungal spores produced on timothy (Phleum pratense) leaves.
methodsTimothy plants were grown at four CO2 concentrations (300, 400, 500, and 600 micromol/mol). Leaves were used as growth substrate for Alternaria alternata and Cladosporium phlei. The spore abundance produced by both fungi, as well as the size (microscopy) and antigenic protein content (ELISA) of A. alternata, were quantified.
resultsLeaf carbon-to-nitrogen ratio was greater at 500 and 600 micromol/mol, and leaf biomass was greater at 600 micromol/mol than at the lower CO2 concentrations. Leaf carbon-to-nitrogen ratio was positively correlated with A. alternata spore production per gram of leaf but negatively correlated with antigenic protein content per spore. At 500 and 600 micromol/mol CO2 concentrations, A. alternata produced nearly three times the number of spores and more than twice the total antigenic protein per plant than at lower concentrations. C. phlei spore production was positively correlated with leaf carbon-to-nitrogen ratio, but overall spore production was much lower than in A. alternata, and total per-plant production did not vary among CO2 concentrations.
conclusionsElevated CO2 concentrations often increase plant leaf biomass and carbon-to-nitrogen ratio. Here we demonstrate for the first time that these leaf changes are associated with increased spore production by A. alternata, a ubiquitous allergenic fungus. This response may contribute to the increasing prevalence of allergies and asthma.
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