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Contrasting carbon allocation responses of juvenile European beech (Fagus sylvatica) and Norway spruce (Picea abies) to competition and ozone.
Environ. Pollut. 196, 534-543 (2015)
Allocation of recent photoassimilates of juvenile beech and spruce in response to twice-ambient ozone (2 × O3) and plant competition (i.e. intra vs. inter-specific) was examined in a phytotron study. To this end, we employed continuous 13CO2/12CO2 labeling during late summer and pursued tracer kinetics in CO2 released from stems. In beech, allocation of recent photoassimilates to stems was significantly lowered under 2 × O3 and increased in spruce when grown in mixed culture. As total tree biomass was not yet affected by the treatments, C allocation reflected incipient tree responses providing the mechanistic basis for biomass partitioning as observed in longer experiments. Compartmental modeling characterized functional properties of substrate pools supplying respiratory C demand. Respiration of spruce appeared to be exclusively supplied by recent photoassimilates. In beech, older C, putatively located in stem parenchyma cells, was a major source of respiratory substrate, reflecting the fundamental anatomical disparity between angiosperm beech and gymnosperm spruce.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
4.143
2.003
7
6
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Compartmental modeling; Plant–plant competition (intra versus inter-specific); CO2 efflux; Stable carbon isotope (13CO2/12CO2) labeling; Tropospheric ozone (O3); Birch Betula-pendula; Free-air Fumigation; Stem Co2 Efflux; Climate-change; Perennial Ryegrass; Tropospheric Ozone; Foliar Injury; Gas-exchange; Forest Trees; Pine Trees
Sprache
englisch
Veröffentlichungsjahr
2015
Prepublished im Jahr
2014
HGF-Berichtsjahr
2014
ISSN (print) / ISBN
0269-7491
e-ISSN
1873-6424
Zeitschrift
Environmental Pollution
Quellenangaben
Band: 196,
Seiten: 534-543
Verlag
Elsevier
Verlagsort
Oxford
Begutachtungsstatus
Peer reviewed
Institut(e)
Research Unit Environmental Simulation (EUS)
POF Topic(s)
30202 - Environmental Health
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-504991-001
PubMed ID
25315225
WOS ID
WOS:000347583900065
Scopus ID
84922353152
Erfassungsdatum
2014-10-13