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Cork stripping alters the seasonal carbon allocation patterns of Quercus suber ...

Pinto, Clara A.; Costa-e-Silva, Filipe; Correia, Alexandre C.; Graça, José; Zarrouk, Olfa; David, Teresa S.; Rodrigues, José C.; Pereira, João S.

Cork stripping is a vital practice supporting the economic sustainability of Quercus suber L. (cork oak) woodlands. However, its physiological impacts under drought conditions remain underexplored. This study investigates the short- and mid-term effects of cork stripping on water relations and carbon metabolism of cork oaks during a dry year. Sap flow in cork-stripped trees decreased by up to 55 % compared to u...


Beyond width and density: stable carbon and oxygen isotopes in cork-rings provi...

Costa, Augusta; Cherubini, Paolo; Graça, José; Spiecker, Heinrich; Barbosa, Inês; Máguas, C.

As climate change increasingly affects forest ecosystems, detailed understanding of major effects is important to anticipate their consequences under future climate scenarios. The Mediterranean region is a prominent climate change hotspot, and evergreen cork oak (Quercus suber L.) woodlands are particularly climatically sensitive due to cork (bark) harvesting. Cork oak’s drought avoidance strategy is well-known...


Beyond width and density: stable carbon and oxygen isotopes in cork-rings provi...

Costa, Augusta; Cherubini, Paolo; Graça, José; Spiecker, Heinrich; Barbosa, Inês; Máguas, C.

As climate change increasingly affects forest ecosystems, detailed understanding of major effects is important to anticipate their consequences under future climate scenarios. The Mediterranean region is a prominent climate change hotspot, and evergreen cork oak (Quercus suber L.) woodlands are particularly climatically sensitive due to cork (bark) harvesting. Cork oak’s drought avoidance strategy is well-known...


Cork cells in cork oak periderms undergo programmed cell death and proanthocyan...

Inácio, Vera; Lobato, Carolina; Graça, José; Morais-Cecilio, Leonor

Vascular plants with secondary growth develop a periderm mostly composed of dead suberized cork cells to face environmental hostile conditions. Cork oak has a highly active and long-living phellogen forming a remarkably thick periderm that is periodically debarked for industrial purposes. This wounding originates the quick formation of a new traumatic periderm, making cork oak an exceptional model to study the ...


A comprehensive assessment of the transcriptome of cork oak (Quercus suber) thr...

Pereira-Leal, José B; Abreu, Isabel A; Alabaça, Cláudia S; Almeida, Maria; Almeida, Paulo; Almeida, Tânia; Amorim, Maria; Araújo, Susana

Cork oak (Quercus suber) is one of the rare trees with the ability to produce cork, a material widely used to make wine bottle stoppers, flooring and insulation materials, among many other uses. The molecular mechanisms of cork formation are still poorly understood, in great part due to the difficulty in studying a species with a long life-cycle and for which there is scarce molecular/genomic information. Cork ...


A comprehensive assessment of the transcriptome of cork oak (Quercus suber) thr...

Pereira-Leal, José B; Abreu, Isabel A; Alabaça, Cláudia S; Almeida, Maria Helena; Almeida, Paulo; Almeida, Tânia; Amorim, Maria Isabel; Araújo, Susana

Background: Cork oak (Quercus suber) is one of the rare trees with the ability to produce cork, a material widely used to make wine bottle stoppers, flooring and insulation materials, among many other uses. The molecular mechanisms of cork formation are still poorly understood, in great part due to the difficulty in studying a species with a long life-cycle and for which there is scarce molecular/genomic inform...


A comprehensive assessment of the transcriptome of cork oak (Quercus suber) thr...

Pereira-Leal, José B.; Abreu, Isabel A.; Alabaça, Cláudia S.; Almeida, Maria H.; Almeida, Paulo; Almeida, Tânia; Amorim, Maria I.; Araújo, Susana

Background: Cork oak (Quercus suber) is one of the rare trees with the ability to produce cork, a material widely used to make wine bottle stoppers, flooring and insulation materials, among many other uses. The molecular mechanisms of cork formation are still poorly understood, in great part due to the difficulty in studying a species with a long life-cycle and for which there is scarce molecular/genomic inform...



Applying pyrolysis-gas chromatography/mass spectrometry to the identification o...

Frade, José Carlos; Ribeiro, Maria Isabel; Graça, José; Rodrigues, José

Oriental lacquers have been used as coating materials for thousands of years for wooden, ceramics, leather and metal objects. Lacquers are natural polymers obtained from three species growing in different regions of Asia: Rhus vernicifera (China, Japan and Korea); Rhus succedanea (Vietnam and Taiwan); and Melanorrhoea usitate (Myanmar and Thailand). The identification of lacquer films is important for conservat...


Identificação e estudo dos sistemas tipo de produção de alfarroba. Influência d...

Madeira, Emília; Graça, José; Félix, António; Rita, Fernanda

O presente documento constitui o relatório final do projecto “Estudo dos Sistemas Agrários Tradicionais”, executado em parceria com a Consejería de Agricultura Y Pesca da Junta da Anadalucía, no âmbito da Iniciativa Comunitária Interreg II (Programa Operativo Interregional II).


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