Cited by 55Forest ecology and managementPlant nutrient uptake and metabolismSoil Carbon and Nitrogen Dynamics

Nitrogen fertilization has differential effects on N allocation and lignin in two Populus species with contrasting ecology

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Euring, Dejuan, Löfke, Christian, Teichmann, Thomas, Polle, Andrea·2012·Trees

Abstract

Black cottonwood (BC, Populus trichocarpa ) and hybrid aspen (HA, P. tremula × tremuloides ) differ in their ecology of being adapted to wet and drier conditions as riparian and early successional forest species, respectively. We tested the hypothesis that these ecological differences were reflected in higher nitrogen (N) use efficiency in HA than in BC and that HA would allocate more resources belowground than BC in the presence of high and low N availability. We expected that responses of wood properties to elevated N would be more pronounced in the species with higher wood formation in response to N supply. HA showed higher belowground biomass partitioning than BC in the presence of low (0.2 mM) and high (2 mM) N supply, but in contrast to our expectation whole-plant nitrogen use efficiency and the stem carbon-to-nitrogen balance were lower than in BC. In response to elevated N, HA exhibited stronger stimulation of biomass production than BC, especially of the stem, which showed significant increases in biomass and volume but decreases in density. Lignification, especially the production of guaiacyl (G)-compared to syringyl (S)-lignin, was delayed in HA compared with BC wood. Since G lignin leads to stronger crosslinking than S lignin, its delayed formation may have enabled stronger expansion and higher volume increment of HA than of BC stems. Our results suggest that BC, a poplar species adapted to fluctuating N supply, is less responsive to differences in N availability than aspen that occurs in low N environments.

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Crossref · 10.1007/s00468-012-0761-0

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  • Low nitrogen suppresses branching and changes the root/shoot ratio toward higher root biomass proportions.

    “Low nitrogen suppresses branching and changes the root/shoot ratio toward higher root biomass proportions (Forde and Lorenzo, 2001; Euring et al., 2012).”

    From Shaping plant architecture (2015) · cites this paper as Euring et al., 2012

    In “Biomass and nitrogen partitioning in hybrid aspen and black cottonwood” (page not available), the paper reports that high nitrogen shifted the root-to-shoot ratio lower in both species, supporting a higher ratio under low nitrogen by comparison. It does not report that low nitrogen suppresses branching. (LLM, conf=0.88)

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Research works printed but not linked: 1

  1. Brunow G (2001) Humic substances and coal. In: Hofrichter M, Steinbu ¨chel A (eds) Lignin. Wiley-VCH, Weinheim, p 89

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Authors
Euring, D., Löfke, C., Teichmann, T., & Polle, A.
Affiliations
University of Göttingen (DE)
Corresponding author
Polle, Andrea
Venue
Trees
Published
2012-09-04
Volume
26
Issue
6
Pages
1933-1942
ISSN
  • 0931-1890 (ISSN-L)
  • 1432-2285
OpenAlex
W1973644356
Cited by
55
References
53
Citations by year
2025: 4 · 2024: 5 · 2023: 1 · 2022: 6 · 2021: 8 · 2020: 5 · 2019: 6 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 5 · 2014: 4 · 2013: 7
FWCI
5.05
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Trees (publishedVersion, cc-by)
  • GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen) (submittedVersion, cc-by)
  • GRO (submittedVersion, cc-by)
Funders
  • European Commission (211917)
  • Deutscher Akademischer Austauschdienst
  • Bundesministerium für Bildung und Forschung
Topics
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Forest ecology and management
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant nutrient uptake and metabolism
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
Keywords
nitrogen fertilization, nitrogen use efficiency, nitrogen partitioning, lignin, guaiacyl lignin, syringyl lignin, wood properties, Populus trichocarpa, hybrid aspen, wood density, stem volume increment, riparian species, early successional species, nitrogen availability

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