Photosynthetic response of two tropical liana species grown under different irradiances

dc.creatorSanches, MC
dc.creatorVaio, IFM
dc.date2008
dc.dateDEC
dc.date2014-07-30T14:31:54Z
dc.date2015-11-26T17:38:40Z
dc.date2014-07-30T14:31:54Z
dc.date2015-11-26T17:38:40Z
dc.date.accessioned2018-03-29T00:20:20Z
dc.date.available2018-03-29T00:20:20Z
dc.identifierPhotosynthetica. Springer, v. 46, n. 4, n. 557, n. 566, 2008.
dc.identifier0300-3604
dc.identifierWOS:000261579100012
dc.identifier10.1007/s11099-008-0094-9
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/59696
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/59696
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1286275
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionWe investigated the characteristics of gaseous exchanges and chlorophyll a fluorescence under different irradiances in two liana species Canavalia parviflora Benth. (Fabaceae) and Gouania virgata Reissk (Rhamnaceae), both of a semi-deciduous tropical forest of Southeast Brazil. We used cultivated plants growing under irradiances of 100, 40, 10, and 1.5 % of the photosynthetic photon flux density (PPFD). Higher net photosynthetic rates (P(N)) were observed during early morning under full sunlight. After this, reduced P(N) values were recorded due to pronounced stomatal closure. In Canavalia, the gas exchange responses diminished concomitant with reduced irradiance. Gouania exhibited a narrower range of response, with high P(N) values even at 10 % PPFD. Marked reduction of the effective photochemical yield (Delta F/F(m)') near midday was observed, followed by increases in the non-photochemical quenching for both species under full sunlight. Despite the common occurrence of these species in open areas of the forest, both were able to maintain relatively high P(N) in shaded environments. We suggest that lianas present an intermediate physiological behaviour between shade and non-shade tolerant species.
dc.description46
dc.description4
dc.description557
dc.description566
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherSpringer
dc.publisherDordrecht
dc.publisherHolanda
dc.relationPhotosynthetica
dc.relationPhotosynthetica
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectacclimation to irradiance
dc.subjectCanavalia parviflora
dc.subjectchlorophyll fluorescence
dc.subjectGouania virgata
dc.subjectliana
dc.subjectnon-photochemical quenching
dc.subjectsemi-deciduous tropical forest
dc.subjectstomatal conductance
dc.subjecttranspiration rate
dc.subjectwater use efficiency
dc.subjectBarro-colorado-island
dc.subjectNeotropical Savanna Trees
dc.subjectLeaf Functional Traits
dc.subjectWater-use Efficiency
dc.subjectMontane Rain-forest
dc.subjectChlorophyll Fluorescence
dc.subjectLight Changes
dc.subjectMidday Depression
dc.subjectEastern Amazonia
dc.subjectDry Forest
dc.titlePhotosynthetic response of two tropical liana species grown under different irradiances
dc.typeArtículos de revistas


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