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Atmospheric nitrogen deposition on petals enhances seed quality of the forest herb Anemone nemorosa

(2018) PLANT BIOLOGY. 20(3). p.619-626
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Abstract
Elevated atmospheric input of nitrogen (N) is currently affecting plant biodiversity and ecosystem functioning. The growth and survival of numerous plant species is known to respond strongly to N fertilisation. Yet, few studies have assessed the effects of N deposition on seed quality and reproductive performance, which is an important life-history stage of plants. Here we address this knowledge gap by assessing the effects of atmospheric N deposition on seed quality of the ancient forest herb Anemone nemorosa using two complementary approaches. By taking advantage of the wide spatiotemporal variation in N deposition rates in pan-European temperate and boreal forests over 2years, we detected positive effects of N deposition on the N concentration (percentage N per unit seed mass, increased from 2.8% to 4.1%) and N content (total N mass per seed more than doubled) of A.nemorosa seeds. In a complementary experiment, we applied ammonium nitrate to aboveground plant tissues and the soil surface to determine whether dissolved N sources in precipitation could be incorporated into seeds. Although the addition of N to leaves and the soil surface had no effect, a concentrated N solution applied to petals during anthesis resulted in increased seed mass, seed N concentration and N content. Our results demonstrate that N deposition on the petals enhances bioaccumulation of N in the seeds of A.nemorosa. Enhanced atmospheric inputs of N can thus not only affect growth and population dynamics via root or canopy uptake, but can also influence seed quality and reproduction via intake through the inflorescences.
Keywords
Latitudinal gradient, nitrogen deposition, nutrient stoichiometry, seed provisioning, seed quality, sexual reproduction, wood anemone, LATITUDINAL GRADIENT, PLANT-RESPONSES, DISPERSING ANTS, GROWTH, COLONIZATION, DIVERSITY, CHEMISTRY, EUROPE, SIZE

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Chicago
De Frenne, Pieter, Haben Blondeel, Jörg Brunet, Maria Mercedes Caron, Olivier Chabrerie, Mathias Cougnon, Sara A.O. Cousins, et al. 2018. “Atmospheric Nitrogen Deposition on Petals Enhances Seed Quality of the Forest Herb Anemone Nemorosa.” Plant Biology 20 (3): 619–626.
APA
De Frenne, P., Blondeel, H., Brunet, J., Mercedes Caron, M., Chabrerie, O., Cougnon, M., Cousins, S. A. O., et al. (2018). Atmospheric nitrogen deposition on petals enhances seed quality of the forest herb Anemone nemorosa. PLANT BIOLOGY, 20(3), 619–626.
Vancouver
1.
De Frenne P, Blondeel H, Brunet J, Mercedes Caron M, Chabrerie O, Cougnon M, et al. Atmospheric nitrogen deposition on petals enhances seed quality of the forest herb Anemone nemorosa. PLANT BIOLOGY. 2018;20(3):619–26.
MLA
De Frenne, Pieter, Haben Blondeel, Jörg Brunet, et al. “Atmospheric Nitrogen Deposition on Petals Enhances Seed Quality of the Forest Herb Anemone Nemorosa.” PLANT BIOLOGY 20.3 (2018): 619–626. Print.
@article{8548002,
  abstract     = {Elevated atmospheric input of nitrogen (N) is currently affecting plant biodiversity and ecosystem functioning. The growth and survival of numerous plant species is known to respond strongly to N fertilisation. Yet, few studies have assessed the effects of N deposition on seed quality and reproductive performance, which is an important life-history stage of plants. Here we address this knowledge gap by assessing the effects of atmospheric N deposition on seed quality of the ancient forest herb Anemone nemorosa using two complementary approaches. By taking advantage of the wide spatiotemporal variation in N deposition rates in pan-European temperate and boreal forests over 2years, we detected positive effects of N deposition on the N concentration (percentage N per unit seed mass, increased from 2.8\% to 4.1\%) and N content (total N mass per seed more than doubled) of A.nemorosa seeds. In a complementary experiment, we applied ammonium nitrate to aboveground plant tissues and the soil surface to determine whether dissolved N sources in precipitation could be incorporated into seeds. Although the addition of N to leaves and the soil surface had no effect, a concentrated N solution applied to petals during anthesis resulted in increased seed mass, seed N concentration and N content. Our results demonstrate that N deposition on the petals enhances bioaccumulation of N in the seeds of A.nemorosa. Enhanced atmospheric inputs of N can thus not only affect growth and population dynamics via root or canopy uptake, but can also influence seed quality and reproduction via intake through the inflorescences.},
  author       = {De Frenne, Pieter and Blondeel, Haben and Brunet, J{\"o}rg and Mercedes Caron, Maria and Chabrerie, Olivier and Cougnon, Mathias and Cousins, Sara A.O. and Decocq, Guillaume and Diekmann, Martin and Graae, Bente J. and Hanley, Mick E. and Heinken, Thilo and Hermy, Martin and Kolb, Annette and Lenoir, Jonathan and Liira, Jaan and Orczewska, Anna and Shevtsova, Anna and Vanneste, Thomas and Verheyen, Kris},
  issn         = {1435-8603},
  journal      = {PLANT BIOLOGY},
  keyword      = {Latitudinal gradient,nitrogen deposition,nutrient stoichiometry,seed provisioning,seed quality,sexual reproduction,wood anemone,LATITUDINAL GRADIENT,PLANT-RESPONSES,DISPERSING ANTS,GROWTH,COLONIZATION,DIVERSITY,CHEMISTRY,EUROPE,SIZE},
  language     = {eng},
  number       = {3},
  pages        = {619--626},
  title        = {Atmospheric nitrogen deposition on petals enhances seed quality of the forest herb Anemone nemorosa},
  url          = {http://dx.doi.org/10.1111/plb.12688},
  volume       = {20},
  year         = {2018},
}

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