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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eru160
|2 doi
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|a pubmed24n1338.xml
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|a (NLM)24799563
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Perez-Martin, Alfonso
|e verfasserin
|4 aut
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| 245 |
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|a Regulation of photosynthesis and stomatal and mesophyll conductance under water stress and recovery in olive trees
|b correlation with gene expression of carbonic anhydrase and aquaporins
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 23.02.2015
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|a Date Revised 21.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a The hypothesis that aquaporins and carbonic anhydrase (CA) are involved in the regulation of stomatal (g s) and mesophyll (g m) conductance to CO2 was tested in a short-term water-stress and recovery experiment in 5-year-old olive plants (Olea europaea) growing outdoors. The evolution of leaf gas exchange, chlorophyll fluorescence, and plant water status, and a quantitative analysis of photosynthesis limitations, were followed during water stress and recovery. These variables were correlated with gene expression of the aquaporins OePIP1.1 and OePIP2.1, and stromal CA. At mild stress and at the beginning of the recovery period, stomatal limitations prevailed, while the decline in g m accounted for up to 60% of photosynthesis limitations under severe water stress. However, g m was restored to control values shortly after rewatering, facilitating the recovery of the photosynthetic rate. CA was downregulated during water stress and upregulated after recovery. The use of structural equation modelling allowed us to conclude that both OePIP1.1 and OePIP2.1 expression could explain most of the variations observed for g s and g m. CA expression also had a small but significant effect on g m in olive under water-stress conditions
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a AQP
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|a CA
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|a OePIP
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|a Olea
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|a mesophyll conductance
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|a photosynthesis limitations
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|a stomatal conductance
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|a water stress.
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|a Aquaporins
|2 NLM
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|a Carbonic Anhydrases
|2 NLM
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|a EC 4.2.1.1
|2 NLM
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| 700 |
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|a Michelazzo, Chiara
|e verfasserin
|4 aut
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| 700 |
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|a Torres-Ruiz, Jose M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Flexas, Jaume
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fernández, José E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sebastiani, Luca
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Diaz-Espejo, Antonio
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 65(2014), 12 vom: 01. Juli, Seite 3143-56
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:65
|g year:2014
|g number:12
|g day:01
|g month:07
|g pages:3143-56
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|u http://dx.doi.org/10.1093/jxb/eru160
|3 Volltext
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