A role for stomata in regulating water use efficiency in Populus x euramericana and characterization of a related gene, PdERECTA
Copyright policy )A role for stomata in regulating water use efficiency in Populus x euramericana and characterization of a related gene, PdERECTA
The physiological mechanism of water use efficiency (WUE) remains elucidated, especially in poplar. We studied WUEi (instantaneous leaf transpiration efficiency), WUEL (ratio of unused biomass and water), carbon isotope composition (δ13C), photosynthetic rates (Pn), stomatal density and stomatal conductance (Gs) in three different, randomly chosen Populus×euramericana clones: DN-2 (Populus × euramericana), R-270 (Populus×euramericana) and NE-19 (Populus nigra × (Populus×euramericana)) under well-watered conditions. The clones had great differences in WUEL, WUEi, δ13C, stomatal density and Gs. We concluded that, stomatal control was a key factor leading to Pn and WUEi differences and ultimately inducing WUEL and δ13C differences. δ13C is therefore, a good indicator to use when evaluating WUEL in Populus×euramericana. We also went further to clone the ERECTA gene, which regulates plant transpiration efficiency in Arabidopsis from Populus×euramericana. Real-time polymerase chain reaction amplification (PCR) analysis revealed that, PdERECTA may play the same role in Populus×euramericana as it does in Arabidopsis.Key words: Carbon isotope composition, Populus×euramericana, PdERECTA gene, stomata, water use efficiency.
- CGIAR Consortium France
- Beihua University China (People's Republic of)
- University of Kragujevac Serbia
- Selçuk University Turkey
- Nanjing Agricultural University China (People's Republic of)
Carbon isotope composition, Populus×euramericana, PdERECTA gene, stomata, water use efficiency., Vesicle trafficking, rice, OsRab7, Escherichia coli, abiotic stresses., Grain cleaning loss, sensor array, sensitive element, elastic thin plate theory, structural parameters., Heterotrophic nitrification and aerobic denitrification, Alcaligenes denitrificans, nitrogen balance, External morphometery, body size, condition factor, Tor putitora, Molecular weight (Mw), poly-3-hydroxybutyrate, methanotrophs, methane, poly-3-hydroxybutyrate (PHB) synthetase., Tylophora indica, organogenesis, 6-benzylaminopurine, α-naphthalene acetic acid, indole 3- butyric acid., 630, soil, microorganisms, Biofertilization, Alkalostable lipase, alkalophilic Burkholderia cenocepacia, optimization, multifactor experimental design., Biofertilization, microorganisms, soil, manure, mineral nitrogen, potato, yield., 660, biotic stress, callus proliferation, proline assay, salinity, total protein., Vermicompost, endosulfan, Zinnia elegans., Lipoxygenase, polyphenol oxidase, Populus simonii × Populus nigra, Lymantria dispar feeding, mechanical wounding., Bluetongue virus, C-ELISA, RT- PCR, Sheep, Iran., Akkaraman lambs, pasture, suckling, concentrate, fatty acid composition, conjugated linoleic acid., yield, Anticlastogenic, cinnamic acid, anticlastogenic index, ACI, mitotic index, mice, model simulation of ACI., mineral nitrogen, Myrothecium roridum, bitter gourd, salicyclic acid, southern Punjab, bavistin, Pakistan., Pokeweed antiviral protein gene, genetic transformation, Cucumis sativus, manure, Thysanoptera, Haplothrips tritici, population density, bread wheat, durum wheat, barley, cultivars., potato, Flash extraction, mogrosides, mogroside V, purification, Taguchi’s experimental design., Bougainvillea spectabilis Willd, normal leaf, abnormal leaf, stomatal density, epidermal cell density, stomatal index., Working length, electronic apex locator, root ZX, radiography.
Carbon isotope composition, Populus×euramericana, PdERECTA gene, stomata, water use efficiency., Vesicle trafficking, rice, OsRab7, Escherichia coli, abiotic stresses., Grain cleaning loss, sensor array, sensitive element, elastic thin plate theory, structural parameters., Heterotrophic nitrification and aerobic denitrification, Alcaligenes denitrificans, nitrogen balance, External morphometery, body size, condition factor, Tor putitora, Molecular weight (Mw), poly-3-hydroxybutyrate, methanotrophs, methane, poly-3-hydroxybutyrate (PHB) synthetase., Tylophora indica, organogenesis, 6-benzylaminopurine, α-naphthalene acetic acid, indole 3- butyric acid., 630, soil, microorganisms, Biofertilization, Alkalostable lipase, alkalophilic Burkholderia cenocepacia, optimization, multifactor experimental design., Biofertilization, microorganisms, soil, manure, mineral nitrogen, potato, yield., 660, biotic stress, callus proliferation, proline assay, salinity, total protein., Vermicompost, endosulfan, Zinnia elegans., Lipoxygenase, polyphenol oxidase, Populus simonii × Populus nigra, Lymantria dispar feeding, mechanical wounding., Bluetongue virus, C-ELISA, RT- PCR, Sheep, Iran., Akkaraman lambs, pasture, suckling, concentrate, fatty acid composition, conjugated linoleic acid., yield, Anticlastogenic, cinnamic acid, anticlastogenic index, ACI, mitotic index, mice, model simulation of ACI., mineral nitrogen, Myrothecium roridum, bitter gourd, salicyclic acid, southern Punjab, bavistin, Pakistan., Pokeweed antiviral protein gene, genetic transformation, Cucumis sativus, manure, Thysanoptera, Haplothrips tritici, population density, bread wheat, durum wheat, barley, cultivars., potato, Flash extraction, mogrosides, mogroside V, purification, Taguchi’s experimental design., Bougainvillea spectabilis Willd, normal leaf, abnormal leaf, stomatal density, epidermal cell density, stomatal index., Working length, electronic apex locator, root ZX, radiography.
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