Change search
ReferencesLink to record
Permanent link

Direct link
Deep shade alters the acclimation response to moderate water streee in Quercus suber L.
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0001-8685-9665
2009 (English)In: Forestry (London), ISSN 0015-752X, E-ISSN 1464-3626, Vol. 82, no 3, 285-298 p.Article in journal (Refereed) Published
Abstract [en]

The interactive effects of shade and drought on different morphologicaland physiological traits were addressed on Quercus suber L.seedlings. In our experiment, limited light treatment (1 percent) represented the main factor constraining cork oak seedlingsgrowth. Maximal photochemical efficiency (Fv/Fm) with light15 per cent exhibited a midday fall, but under deep shade (1per cent), Fv/Fm remained constant (<0.8 values) throughoutthe day. The quantum efficiency of photosystem II (PSII) waslower under moderate drought only in deeply shaded plants. Thedrought also interacted with light through the increase of thesoluble sugar content at 100 per cent light, but not under shade.Under deep shade, soluble sugar content tended to be even lowerunder moderate drought conditions. The chlorophyll content wasnot the highest under deep shade as could be expected, whilethe efficiency of PSII was the lowest under deep shade. We concludedthat cork oak can acclimate to moderate shade (15 per cent light),but deep shade impairs some of the physiological responses tocope with low light conditions under moderate drought stress.Plants growing under deep shade were very sensitive to moderatewater stress in terms of loss of carbon fixation capacity.

Place, publisher, year, edition, pages
2009. Vol. 82, no 3, 285-298 p.
National Category
Biological Sciences
URN: urn:nbn:se:umu:diva-26414DOI: 10.1093/forestry/cpp008OAI: diva2:248840
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2015-04-29Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Kleczkowski, Leszek A
By organisation
Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)
In the same journal
Forestry (London)
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 22 hits
ReferencesLink to record
Permanent link

Direct link