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Mycorrhization of cork oak micropropagated plantlets : its vitality during acclimatization measured with fast fluorescence techniques

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dc.contributor.authorRomano, A.
dc.contributor.authorStrasser, R. J.
dc.contributor.authorEggenberg, P.
dc.contributor.authorMartins-Loução, M. A.
dc.date.accessioned2011-11-25T14:19:25Z
dc.date.available2011-11-25T14:19:25Z
dc.date.issued1996
dc.description.abstractIn this work we propose some fluorescense tests, based on a fast data acquisition (10 us per data point with 12 bit resolution) over five orders of magnitude in time (10 us to 1s) with an optoelectronic shutterless instrument (Plant Efficiency Analyser - PEA), to evaluate the response of micropropagated cork oak plantlets with or without mycorrhiza, in vitro and ex vitro conditions. Indexes have been defined which indicate the activity, efficiency, stress resistance, adaptability and developmental complexity of a plant. The shape of the observed fluorescence transient (on a logarithmic time scale) showed the typical Fo-J-I-P levels. The results obtained showed that mycorrhization increases the quantum yield of photochemistry as well as the electron transport and the photosynthetic metabolism. The density of photosynthetic units per leaf area is highly increased in mycorrhized plantlets. Therefore the productivity per leaf area is increased in these plantlets as well. During acclimatization mycorrhized plantlets show a much higher general fitness than non-mycorrhized plantlets in relation to the defined indexes.por
dc.identifier.citationIn AZCON-AGUILAR, C. ; BAREA, J. M. ed. - Mycorrizas in integrated systems from genes to plant development : proceedings of the fourth European Symposium on Mycorrizas. Brussels ; Luxemburg : European Comission, 1996.por
dc.identifier.isbn9282756769
dc.identifier.urihttp://hdl.handle.net/10451/4562
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherEuropean Commission, Directorate-General XII, Science, Research and Developmentpor
dc.subjectAcclimatizationpor
dc.subjectChl-a-fluorescencepor
dc.subjectEctomycorrhizaspor
dc.subjectMicropropagationpor
dc.subjectQuercus suberpor
dc.titleMycorrhization of cork oak micropropagated plantlets : its vitality during acclimatization measured with fast fluorescence techniquespor
dc.typebook part
dspace.entity.typePublication
rcaap.rightsrestrictedAccesspor
rcaap.typebookPartpor

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