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Winkler, J.B. ; Fleischmann, F.* ; Gayler, S. ; Scherb, H. ; Matyssek, R.* ; Grams, T.E.E.*

Do chronic aboveground O₃ exposure and belowground pathogen stress affect growth and belowground biomass partitioning of juvenile beech trees (Fagus sylvatica L.)?

Plant Soil 332, (Sp. Iss. SI), 31-44 (2009)
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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The impact of chronic free air ozone (O-3) exposure and belowground pathogen stress on growth and total biomass development of young beech trees (Fagus sylvatica L.) was investigated in a lysimeter study. Plants were growing during four years under ambient or elevated atmospheric O-3 concentrations. Additionally, in the last vegetation period the root rot pathogen Phytophthora citricola was introduced to study the interaction of ozone exposure and pathogen stress in the soil-plant system. A complete harvest at the end of the experiment enabled for the first time the assessment of fine and coarse root biomass of individual trees with a high vertical resolution down to two meter depth. Plant growth was significantly reduced by elevated ozone but not affected by P. citricola. Biomass partitioning between fine and coarse roots as well as vertical root distribution were significantly affected by both factors, whereas changes in root/shoot biomass ratio were not observed.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Free air ozone enrichment; Beech; Plant growth; Root biomass; FINE-ROOT BIOMASS; ELEVATED ATMOSPHERIC CO-2; PHYTOPHTHORA-CITRICOLA; TROPOSPHERIC O-3; EUROPEAN BEECH; YOUNG BEECH; CHANGING ENVIRONMENT; ECOSYSTEM-LEVEL; GROWING SEASONS; TREMBLING ASPEN
ISSN (print) / ISBN 0032-079X
e-ISSN 1573-5036
Zeitschrift Plant and Soil
Quellenangaben Band: 332, Heft: 1-2, Seiten: 31-44, Artikelnummer: , Supplement: (Sp. Iss. SI)
Verlag Springer
Verlagsort Dordrecht, NL
Begutachtungsstatus Peer reviewed