Photosynthetic and leaf anatomical characteristics of Castanea sativa: a comparison between in vitro and nursery plants

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datacite.alternateIdentifier.citationBIOLOGIA PLANTARUM,Vol.56,15-24,2012
datacite.creatorSaez, P. L.
datacite.creatorBravo, L. A.
datacite.creatorSaez, K. L.
datacite.creatorSanchez-Olate, M.
datacite.creatorLatsague Vidal, Mirtha
datacite.creatorRios, D. G.
datacite.date2012
datacite.subject.englishchloroplasts
datacite.subject.englishfluorescence
datacite.subject.englishmicropropagation
datacite.subject.englishnet photosynthetic rate
datacite.subject.englishstomata
datacite.subject.englishtranspiration rate
datacite.titlePhotosynthetic and leaf anatomical characteristics of Castanea sativa: a comparison between in vitro and nursery plants
dc.date.accessioned2021-04-30T16:43:36Z
dc.date.available2021-04-30T16:43:36Z
dc.description.abstractThe anatomic and functional leaf characteristics related to photosynthetic performance of Castanea sativa growing in vitro and in nursery were compared. The irradiance saturated photosynthesis in in vitro grown plantlets was significantly lower compared to nursery plants (65 vs. 722 mu mol m(-2) s(-1)). The maximum photosynthetic rate (P-Nmax) was 4.0 and 10.0 mu mol(CO2) m(-2) s(-1) in in vitro microshoots and nursery plant leaves, respectively. Carboxylation efficiency (C-E) and electron transport rate (ETR) were three-folds higher in nursery plants than in microshoots. The non-photochemical quenching (NPQ) was saturated at 80 mu mol m(-2) s(-1) in microshoots suggesting limited photoprotection by thermal dissipation. The microshoots had wide open, spherical stomata and higher stomatal density than nursery plants and they had almost no epicuticular wax. Consequently, the microshoots had high stomatal conductance and high transpiration rate. These anatomic and functional leaf characteristics are likely major causes of the low survival rates of plantlets after ex vitro transfer.
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/3367
dc.language.isoen
dc.publisherACAD SCIENCES CZECH REPUBLIC. INST EXPERIMENTAL BOTANY
dc.sourceBIOLOGIA PLANTARUM
oaire.resourceTypeArticle
uct.catalogadorWOS
uct.indizacionSCI
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