Effect of season, needle age and elevated CO2 concentration on photosynthesis and Rubisco acclimation in Picea abies

Urban, Otmar; Hrstka, Miroslav; Zitová, Martina; Holišová, Petra; Šprtová, M.; Klem, Karel; Calfapietra, Carlo; Angelis, Paolo De; Marek, Michal V.

doi:10.1016/j.plaphy.2012.06.023

Cited by 37 publications

(31 citation statements)

References 37 publications

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“…2E,F). Moreover, Urban et al (2012) revealed an inverse relationship between N area and Rubisco specific activity. The significantly increased N area in HG and constant N area in HRY probably suggested a decline in Rubisco specific activity in HG and constant activity in HRY at EC.…”

Section: Discussionmentioning

confidence: 95%

“…The southeastern part of this region and the adjacent areas comprise one of the 25 global biodiversity 'hotspots' and one of only two in the northern hemisphere (Myers et al 2000). Therefore, to predict how the QTP ecosystem structure and function is going to change in the future, it is essential to understand well ecophysiological responses of endemic plants to EC. Physiological responses of plants to EC have been documented in numerous articles (Curtis and Wang 1998, Ainsworth and Long 2005, Reddy et al 2010, Urban et al 2012. Photosynthesis, stomatal conductance, respiration, water-use efficiency, and growth, as well as biomass allocation patterns, leaf nitrogen ---content, and leaf area are shown to play key roles in plant response to EC.…”

Section: Introductionmentioning

confidence: 99%

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Responses of two endemic species of Hippophae at the Qinghai-Tibet Plateau to elevated CO<sub>2</sub> concentration

Zhao

2015

Photosynt.

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The responses of photosynthesis and growth to increasing CO 2 concentration ([CO 2 ]) were investigated in Hippophae gyantsensis and H. rhamnoides subsp. yunnanensis, which are endemic at the Qinghai-Tibet Plateau and phylogenetically related, but distributed parapatrically in divergent regions. Seedlings of the two species were grown at ambient [AC; 360 µmol(CO 2 ) mol -1 ] and elevated [EC; 720 µmol(CO 2 ) mol -1 ] [CO 2 ] in growth chambers. The responses to EC were significantly different between the two species. EC induced an increase in photosynthesis, stomatal conductance, intrinsic water-use efficiency, apparent quantum efficiency, total dry mass, and a decrease in photorespiration rate, maximum carboxylation rate of Rubisco, and maximum electron transport rate in H. gyantsensis compared to those in H. rhamnoides subsp. yunnanensis. Moreover, a significant increase in leaf nitrogen content and a decrease in root/shoot ratio was also observed in H. gyantsensis. H. gyantsensis showed a significantly higher specific leaf area than that of H. rhamnoides through treatments. Relative to H. rhamnoides subsp. yunnanensis, H. gyantsensis showed a greater potential to increase photosynthesis and growth to cope with the increasing [CO2] and it might expand its distribution range in the future.

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Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Responses of two endemic species of Hippophae at the Qinghai-Tibet Plateau to elevated CO<sub>2</sub> concentration

Zhao

2015

Photosynt.

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“…Earlier findings had shown that G Smax is particularly driven by VPD when high VPD values lead to closure of the stomatal aperture (Farquhar and Sharke 1982, Bergh et al 1998). An increased resistance to CO 2 diffusion into the leaf interior is subsequently followed by reduced intercellular and chloroplastic CO 2 concentrations and by reduced carboxylation activity of the Rubisco enzyme (Farquhar et al 1980, Caemmerer 2000, Urban et al 2012a. In contrast, oxygenation activity of the Rubisco enzyme, leading to photorespiratory CO 2 efflux, is stimulated under such growth conditions, particularly when drought is combined with high temperatures (Doehlert and Walker 1981, Leakey et al 2003, Urban et al 2012b).…”

Section: Discussionmentioning

confidence: 99%

“…Earlier studies of coniferous tree species have investigated mainly the effect of needle age on CO 2 exchange (Troeng and Linder 1982, Beeck et al 2010, Urban et al 2012a, while in situ investigation as to the relative contribution of sun-and shade-acclimated needles to total carbon uptake and its change during the growing season have received only limited attention.…”

Section: Introductionmentioning

confidence: 99%

Seasonal courses of photosynthetic parameters in sun- and shade-acclimated spruce shoots

Urban

Holub

Klem

2017

Beskydy

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Urban O., Holub P., Klem K. 2017: Seasonal courses of photosynthetic parameters in sunand shade-acclimated spruce shoots -Beskydy, 10 (1, 2): 49-56Exponential attenuation of light intensity passing through forest canopies leads to the formation of sun-and shade-acclimated leaves contributing to overall canopy carbon gain. Using a gas-exchange technique, seasonal changes in photosynthetic parameters were investigated in situ to test the hypothesis that the relative contributions of sun-and shade-acclimated Norway spruce shoots to total carbon gain vary during the growing season and that the contribution of sun-acclimated shoots to total carbon uptake may be reduced during the hot and dry summer season. In agreement with the tested hypothesis, we found reduced photosynthetic capacity as well as reduced light-use efficiency for carbon assimilation in sun-acclimated shoots during summer months while these remained almost unchanged in shade-acclimated shoots. Reduction of photosynthetic capacity was primarily associated with reduced stomatal conductance. On the other hand, seasonal courses of mitochondrial dark respiration, quantum efficiency of photosynthetic reactions, and compensation irradiance were primarily driven by changes in temperature. Accordingly, the photosynthetic characteristics of sunand shade-acclimated shoots tended to converge in early spring and late autumn when temperature was low. Such seasonal dynamics result in an increased contribution of shade-acclimated shoots to total carbon uptake at the beginning and end of the growing season as well as during hot and dry summer periods.

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“…Therefore, low quantities of N can result in lower A net per unit leaf area (Yao et al, 2008). The concentration of N present in the plant tissue is directly related to A net (Zhao et al, 2005;Matcha, 2007) and to the activity of the enzyme Ribulose bisphosphate carboxylase/oxygenase (Rubisco), which is essential for photosynthesis (Pérez et al, 2005;Andersson and Backlund, 2008;Urban et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

The Effect of the Ionic Strength of Nutrient Solution on Gas Exchange, Ionic Concentration and Leaf Biomass ofAnnona emarginata(Schltdl.) H. Rainer Variety ‘Terra-Fria’ Seedlings

Báron

Ferreira

Boaro

et al. 2015

Journal of Plant Nutrition

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The present study aimed to test the hypothesis that different levels of the availability of mineral nutrients from Hoagland and Arnon"s (1950) nutrient solution no. 2 affect the photosynthesis, ionic concentration and biomass production in seedlings of Annona emarginata (Schltdl.) H.Rainer variety "terra-fria". Seedlings were grown in a hydroponic setting with 100% ionic strength and with ionic strength reduced to 75%, 50%, and 25%. Ionic strengths intermediate resulted in higher rates of carbon net assimilation and plants grown under these conditions increased biomass as well ionic concentrations of calcium, magnesium and sulphur. The "terraDownloaded by [New York University] at 11:00 11 June 2015 ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 2fria" plants with nutrient solutions of 50% and 75% ionic strength exhibited higher ionic concentrations, instantaneous carboxylation efficiency and biomass production. It can be concluded that the "terra-fria" does not require the maximum mineral nutrients availability from Hoagland and Arnon"s (1950) to achieve high primary productivity and intermediate ionic strengths can even reduce the time required for rootstock formation.

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Effect of season, needle age and elevated CO2 concentration on photosynthesis and Rubisco acclimation in Picea abies

Cited by 37 publications

References 37 publications

Responses of two endemic species of Hippophae at the Qinghai-Tibet Plateau to elevated CO<sub>2</sub> concentration

Responses of two endemic species of Hippophae at the Qinghai-Tibet Plateau to elevated CO<sub>2</sub> concentration

Seasonal courses of photosynthetic parameters in sun- and shade-acclimated spruce shoots

The Effect of the Ionic Strength of Nutrient Solution on Gas Exchange, Ionic Concentration and Leaf Biomass ofAnnona emarginata(Schltdl.) H. Rainer Variety ‘Terra-Fria’ Seedlings

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