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Responses of beech and spruce foliage to elevated carbon dioxide, increased nitrogen deposition and soil type.

Günthardt-Goerg MS, Vollenweider P - AoB Plants (2015)

Bottom Line: This study compared reactions in the foliage of a deciduous and a coniferous tree species (important central European trees, beech and spruce) to an elevated supply of CO2 and evaluated the importance of the soil type and increased nitrogen deposition on foliar nutrient concentrations and cellular stress reactions.The magnitude of the effects varied among the tree origins in both species.The soil type and its nutrient supply largely determined the fertilization gain, especially in the case of beech trees with a narrow ecological amplitude.

View Article: PubMed Central - PubMed

Affiliation: Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland madeleine.goerg@wsl.ch.

No MeSH data available.


Related in: MedlinePlus

The change in the concentration of photosynthetic pigments in July (A and B), namely chlorophyll a + b and α + β carotenoids (hatched columns), and in the needle colour in September (C and D) in the current-year foliage of several European spruce origins (bar colours = Fig. 5) growing on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4). (E) Typical examples of needle discolouration in response to elevated CO2.
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PLV067F6: The change in the concentration of photosynthetic pigments in July (A and B), namely chlorophyll a + b and α + β carotenoids (hatched columns), and in the needle colour in September (C and D) in the current-year foliage of several European spruce origins (bar colours = Fig. 5) growing on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4). (E) Typical examples of needle discolouration in response to elevated CO2.

Mentions: The exposure to +CO2 reduced the pigment content and leaf colour of spruce needles, with a variation among the origins. The concentration of photosynthetic pigments within current-year needles in July was decreased by +CO2 (chlorophyll, 21 %; carotenoids, 18 %), whereas the +ND treatment caused no significant change (Fig. 6A and B, Table 2). The soil had an important influence. The concentration of chlorophyll and carotenoids on the acidic versus calcareous soil was by 40 and 36 % lower, respectively. The current-year foliage under +CO2 showed a lighter green colour (Fig. 6A, B and E) and this discolouration was increased on the acidic versus calcareous soil (−7 and −4 %) whereas the +ND led to darker green hue on acidic soil (+11 and + 2 %, significant ND × soil interaction; Fig. 6C and D, Table 2). Belying this interaction in the needle colour, the N concentration of current-year needles was significantly decreased by +CO2 (−15 %, nearing, on the acidic soil, the deficiency level of <11.8 mg g−1, according to Mellert and Göttlein 2012) but increased by +ND (+15 %, Fig. 7A and B). Needle colour evolved during the vegetation season and samples harvested in September versus July showed darker green hues (current-year needles +13 %, previous year +7 %, Table 2).Figure 6.


Responses of beech and spruce foliage to elevated carbon dioxide, increased nitrogen deposition and soil type.

Günthardt-Goerg MS, Vollenweider P - AoB Plants (2015)

The change in the concentration of photosynthetic pigments in July (A and B), namely chlorophyll a + b and α + β carotenoids (hatched columns), and in the needle colour in September (C and D) in the current-year foliage of several European spruce origins (bar colours = Fig. 5) growing on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4). (E) Typical examples of needle discolouration in response to elevated CO2.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4522038&req=5

PLV067F6: The change in the concentration of photosynthetic pigments in July (A and B), namely chlorophyll a + b and α + β carotenoids (hatched columns), and in the needle colour in September (C and D) in the current-year foliage of several European spruce origins (bar colours = Fig. 5) growing on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4). (E) Typical examples of needle discolouration in response to elevated CO2.
Mentions: The exposure to +CO2 reduced the pigment content and leaf colour of spruce needles, with a variation among the origins. The concentration of photosynthetic pigments within current-year needles in July was decreased by +CO2 (chlorophyll, 21 %; carotenoids, 18 %), whereas the +ND treatment caused no significant change (Fig. 6A and B, Table 2). The soil had an important influence. The concentration of chlorophyll and carotenoids on the acidic versus calcareous soil was by 40 and 36 % lower, respectively. The current-year foliage under +CO2 showed a lighter green colour (Fig. 6A, B and E) and this discolouration was increased on the acidic versus calcareous soil (−7 and −4 %) whereas the +ND led to darker green hue on acidic soil (+11 and + 2 %, significant ND × soil interaction; Fig. 6C and D, Table 2). Belying this interaction in the needle colour, the N concentration of current-year needles was significantly decreased by +CO2 (−15 %, nearing, on the acidic soil, the deficiency level of <11.8 mg g−1, according to Mellert and Göttlein 2012) but increased by +ND (+15 %, Fig. 7A and B). Needle colour evolved during the vegetation season and samples harvested in September versus July showed darker green hues (current-year needles +13 %, previous year +7 %, Table 2).Figure 6.

Bottom Line: This study compared reactions in the foliage of a deciduous and a coniferous tree species (important central European trees, beech and spruce) to an elevated supply of CO2 and evaluated the importance of the soil type and increased nitrogen deposition on foliar nutrient concentrations and cellular stress reactions.The magnitude of the effects varied among the tree origins in both species.The soil type and its nutrient supply largely determined the fertilization gain, especially in the case of beech trees with a narrow ecological amplitude.

View Article: PubMed Central - PubMed

Affiliation: Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland madeleine.goerg@wsl.ch.

No MeSH data available.


Related in: MedlinePlus