Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.

Grass pollen allergens are known to be one of the major triggers of hay fever with an increasing number of humans affected by pollen associated health impacts. Climate change characterized by increasing air temperature and more frequent drought periods might affect plant development and pollen chara...

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Main Authors: Stephan Jung, Nicole Estrella, Michael W Pfaffl, Stephan Hartmann, Franziska Ewald, Annette Menzel
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248759&type=printable
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author Stephan Jung
Nicole Estrella
Michael W Pfaffl
Stephan Hartmann
Franziska Ewald
Annette Menzel
author_facet Stephan Jung
Nicole Estrella
Michael W Pfaffl
Stephan Hartmann
Franziska Ewald
Annette Menzel
author_sort Stephan Jung
collection DOAJ
description Grass pollen allergens are known to be one of the major triggers of hay fever with an increasing number of humans affected by pollen associated health impacts. Climate change characterized by increasing air temperature and more frequent drought periods might affect plant development and pollen characteristics. In this study a one-year (2017) field experiment was conducted in Bavaria, Germany, simulating drought by excluding rain and elevated air temperature by installing a heating system to investigate their effects primarily on the allergenic potential of eight selected cultivars of the two grass species timothy and perennial ryegrass. It could be shown for timothy that especially under drought and heat conditions the allergen content is significantly lower accompanied by a decrease in pollen weight and protein content. In perennial ryegrass the response to drought and heat conditions in terms of allergen content, pollen weight, and protein content was more dependent on the respective cultivar probably due to varying requirements for their growth conditions and tolerance to drought and heat. Results support recommendations which cultivars should be grown preferentially. The optimal choice of grass species and respective cultivars under changing climate conditions should be a major key aspect for the public health sector in the future.
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publishDate 2021-01-01
publisher Public Library of Science (PLoS)
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spelling doaj-art-29f5815b8b6a490bb2071adba6d71e2e2025-08-20T02:00:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01163e024875910.1371/journal.pone.0248759Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.Stephan JungNicole EstrellaMichael W PfafflStephan HartmannFranziska EwaldAnnette MenzelGrass pollen allergens are known to be one of the major triggers of hay fever with an increasing number of humans affected by pollen associated health impacts. Climate change characterized by increasing air temperature and more frequent drought periods might affect plant development and pollen characteristics. In this study a one-year (2017) field experiment was conducted in Bavaria, Germany, simulating drought by excluding rain and elevated air temperature by installing a heating system to investigate their effects primarily on the allergenic potential of eight selected cultivars of the two grass species timothy and perennial ryegrass. It could be shown for timothy that especially under drought and heat conditions the allergen content is significantly lower accompanied by a decrease in pollen weight and protein content. In perennial ryegrass the response to drought and heat conditions in terms of allergen content, pollen weight, and protein content was more dependent on the respective cultivar probably due to varying requirements for their growth conditions and tolerance to drought and heat. Results support recommendations which cultivars should be grown preferentially. The optimal choice of grass species and respective cultivars under changing climate conditions should be a major key aspect for the public health sector in the future.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248759&type=printable
spellingShingle Stephan Jung
Nicole Estrella
Michael W Pfaffl
Stephan Hartmann
Franziska Ewald
Annette Menzel
Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.
PLoS ONE
title Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.
title_full Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.
title_fullStr Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.
title_full_unstemmed Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.
title_short Impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species.
title_sort impact of elevated air temperature and drought on pollen characteristics of major agricultural grass species
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0248759&type=printable
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AT stephanhartmann impactofelevatedairtemperatureanddroughtonpollencharacteristicsofmajoragriculturalgrassspecies
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