Effects of NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; on Inflorescence Length, Pollen/Seed Amount and Phenolic Metabolites of Common Ragweed (&amp;lt;i&amp;gt;Ambrosia artemisiifolia&amp;lt;/i&amp;gt; L.)

Zhao, Feng; Heller, Werner; Stich, Susanne; Durner, Jörg; Winkler, J. Barbro; Traidl‐Hoffmann, Claudia; Ernst, Dieter; Frank, Ulrike

doi:10.4236/ajps.2017.811194

Cited by 4 publications

(4 citation statements)

References 44 publications

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“…We noted the concurrent rising of (1) birch pollen and NO 2 levels and (2) Bet v 1 allergen and CO levels over the MPS. Several researchers (e.g., Takahashi and Morikawa 2014 ; Zhao et al 2017 ) recognize nitrogen dioxide as an air pollutant that positively regulates the growth of vegetative and generative structures of plants, resulting in enhanced biomass and pollen production. On the other hand, carbon monoxide is associated with stress-related defense processes in plants, leading to enhanced allergenic protein content in pollen grains (Žiarovská et al 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Impact of meteorological parameters and air pollutants on airborne concentration of Betula pollen and Bet v 1 allergen

Ščevková,

Dušička,

Zahradníková

et al. 2023

Environ Sci Pollut Res

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The intensity of birch pollen season is expressed by seasonal pollen integral (SPIn, the sum of the mean daily pollen concentration during the birch pollination period) and the amount of Bet v 1 allergen released per birch pollen grain expressed by pollen allergen potency (PAP). Betula pollen and Bet v 1 allergen were simultaneously measured in the air of Bratislava from 2019 to 2022 by using two Burkard traps (Hirst-type and cyclone) in order to evaluate the causes of the seasonal variation in the SPIn and PAP levels. The highest SPIn (19,975 pollen/m3) was observed in 2022 and the lowest one (1484 pollen/m3) in 2021. The average daily PAP level (4.0 pg Bet v 1/pollen) was highest in 2019 and lowest (2.5 pg Bet v 1/pollen) in 2020. We found that seasonal variation in SPIn was associated mainly with the changes in environmental conditions during the pre-season period, whereas the year-to-year variation in PAP levels was attributed to environmental conditions during both pre- and in-season periods. Our results indicate that rainy weather in June 2020 and cold overcast weather in January‒February 2021 resulted in low SPIn in 2021. On the other hand, dry weather in June 2021 and warm weather in January‒February 2022 resulted in high SPIn in 2022. The low average daily PAP level in 2020 was associated with (1) low levels of gaseous air pollutants in March, when the ripening of pollen takes place; (2) an earlier start of the birch main pollen season (MPS); and (3) dry weather during the MPS. On the other hand, high PAP level in 2019 was associated with higher levels of air pollutants in March and during the MPS.

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Section: Discussionmentioning

confidence: 99%

Impact of meteorological parameters and air pollutants on airborne concentration of Betula pollen and Bet v 1 allergen

Ščevková,

Dušička,

Zahradníková

et al. 2023

Environ Sci Pollut Res

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“…Darbah et al ( 2008 ) studied the effect of elevated O 3 on Betula papyfera and reported higher production of catkins along with a decrease in catkin length, diameter, and mass. Studying Ambrosia artemisiifolia, Zhao et al ( 2017 ) found increased pollen and decreased seed production under elevated NO 2 concentrations.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, increased carbon dioxide (CO 2 ) concentrations have been reported to lead to an increase in pollen production (Ziska and Caulfield 2000 ; Jablonski et al 2002 ; Wayne et al 2002 ; Ziska et al 2003 ; Rogers et al 2006 ; Kim et al 2018 ). For air pollutants, nitrogen dioxide (NO 2 ) might reduce pollen production (Jochner et al 2013 ), but also the opposite has been documented (Zhao et al 2017 ). In addition, a study demonstrated that O 3 affects plant reproduction (Darbah et al 2008 ; Albertine et al 2014 ).…”

Section: Introductionmentioning

confidence: 99%

How does pollen production of allergenic species differ between urban and rural environments?

Jetschni,

Fritsch,

Jochner-Oette

2023

Int J Biometeorol

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Pollen production is one plant characteristic that is considered to be altered by changes in environmental conditions. In this study, we investigated pollen production of the three anemophilous species Betula pendula, Plantago lanceolata, and Dactylis glomerata along an urbanization gradient in Ingolstadt, Germany. We compared pollen production with the potential influencing factors urbanization, air temperature, and the air pollutants nitrogen dioxide (NO2) and ozone (O3). While we measured air temperature in the field, we computed concentration levels of NO2 and O3 from a land use regression model. The results showed that average pollen production (in million pollen grains) was 1.2 ± 1.0 per catkin of Betula pendula, 5.0 ± 2.4 per inflorescence of Plantago lanceolata, and 0.7 ± 0.5 per spikelet of Dactylis glomerata. Pollen production was higher in rural compared to urban locations on average for B. pendula (+ 73%) and P. lanceolata (+ 31%), while the opposite was the case for D. glomerata (− 14%). We found that there was substantial heterogeneity across the three species with respect to the association of pollen production and environmental influences. Pollen production decreased for all species with increasing temperature and urbanization, while for increasing pollutant concentrations, decreases were observed for B. pendula, P. lanceolata, and increases for D. glomerata. Additionally, pollen production was found to be highly variable across species and within species—even at small spatial distances. Experiments should be conducted to further explore plant responses to altering environmental conditions.

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“…This happens because plants exposed to higher levels of environmental stress tend to produce more defence-related allergenic proteins (Gilles et al 2018 ; Rauer et al 2021 ). It has been shown that these levels of stress also influence pollen production either positively (Zhao et al 2017 ) or negatively (Jochner et al 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Long-term pollen season trends of Fraxinus (ash), Quercus (oak) and Ambrosia artemisiifolia (ragweed) as indicators of anthropogenic climate change impact

Ščevková,

Štefániková,

Dušička

et al. 2024

Environ Sci Pollut Res

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The ongoing climatic change, together with atmospheric pollution, influences the timing, duration and intensity of pollen seasons of some allergenic plant taxa. To study these influences, we correlated the trends in the pollen season characteristics of both woody (Fraxinus, Quercus) and herbaceous (Ambrosia) taxa from two pollen monitoring stations in Slovakia with the trends in meteorological factors and air pollutants during the last two decades. In woody species, the increased temperature during the formation of flower buds in summer and autumn led to an earlier onset and intensification of next year’s pollen season, especially in Quercus. The increase of relative air humidity and precipitation during this time also had a positive influence on the intensity of the pollen season of trees. The pollen season of the invasive herbaceous species Ambrosia artemisiifolia was prolonged by increased temperature and humidity during the summer and autumn of the same year, which extended the blooming period and delayed the end of the pollen season. From the studied air pollutants, only three were found to correlate with the intensity of the pollen season of the studied taxa, CO − positively and SO2 and NO2 − negatively. It is important to study these long-term trends since they not only give us valuable insight into the response of plants to changing conditions but also enable the prognosis of the exacerbations of pollen-related allergenic diseases.

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Effects of NO<sub>2</sub> on Inflorescence Length, Pollen/Seed Amount and Phenolic Metabolites of Common Ragweed (<i>Ambrosia artemisiifolia</i> L.)

Cited by 4 publications

References 44 publications

Impact of meteorological parameters and air pollutants on airborne concentration of Betula pollen and Bet v 1 allergen

Impact of meteorological parameters and air pollutants on airborne concentration of Betula pollen and Bet v 1 allergen

How does pollen production of allergenic species differ between urban and rural environments?

Long-term pollen season trends of Fraxinus (ash), Quercus (oak) and Ambrosia artemisiifolia (ragweed) as indicators of anthropogenic climate change impact

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