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Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer
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| Zeitschriftentitel: | Plant Biology |
|---|---|
| Personen und Körperschaften: | , |
| In: | Plant Biology, 18, 2016, 4, S. 638-648 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Fernàndez‐Martínez, J. Fleck, I. Fernàndez‐Martínez, J. Fleck, I. |
|---|---|
| author |
Fernàndez‐Martínez, J. Fleck, I. |
| spellingShingle |
Fernàndez‐Martínez, J. Fleck, I. Plant Biology Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer Plant Science Ecology, Evolution, Behavior and Systematics General Medicine |
| author_sort |
fernàndez‐martínez, j. |
| spelling |
Fernàndez‐Martínez, J. Fleck, I. 1435-8603 1438-8677 Wiley Plant Science Ecology, Evolution, Behavior and Systematics General Medicine http://dx.doi.org/10.1111/plb.12439 <jats:title>Abstract</jats:title><jats:p>Information on the photosynthetic process and its limitations is essential in order to predict both the capacity of species to adapt to conditions associated with climate change and the likely changes in plant communities. Considering that high‐mountain species are especially sensitive, three species representative of subalpine forests of the Central Catalan Pyrenees: mountain pine (<jats:italic>Pinus uncinata</jats:italic> Mill.), birch (<jats:italic>Betula pendula</jats:italic> Roth) and rhododendron (<jats:italic>Rhododendron ferrugineum</jats:italic> L.) were studied under conditions associated with climate change, such as low precipitation, elevated atmospheric [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] and high solar irradiation incident at Earth's surface, in order to detect any photosynthetic limitations. Short‐term high [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] increased photosynthesis rates (<jats:italic>A</jats:italic>) and water use efficiency (<jats:styled-content style="fixed-case">WUE</jats:styled-content>), especially in birch and mountain pine, whereas stomatal conductance (<jats:italic>g</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub>) was not altered in either species. Birch showed photosynthesis limitation through stomatal closure related to low rainfall, which induced photoinhibition and early foliar senescence. Rhododendron was especially affected by high irradiance, showing early photosynthetic saturation in low light, highest chlorophyll content, lowest gas exchange rates and least photoprotection. Mountain pine had the highest <jats:italic>A</jats:italic>, photosynthetic capacity (<jats:italic>A</jats:italic><jats:sub>max</jats:sub>) and light‐saturated rates of net <jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub> assimilation (<jats:italic>A</jats:italic><jats:sub>sat</jats:sub>), which were maintained under reduced precipitation. Furthermore, maximum quantum yield (F<jats:sub>v</jats:sub>/F<jats:sub>m</jats:sub>), thermal energy dissipation, <jats:styled-content style="fixed-case">PRI</jats:styled-content> and <jats:styled-content style="fixed-case">SIPI</jats:styled-content> radiometric index, and ascorbate content indicated improved photoprotection with respect to the other two species. However, maximum velocity of carboxylation of RuBisco (V<jats:sub>cmax</jats:sub>) indicated that N availability would be the main photosynthetic limitation in this species.</jats:p> Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer Plant Biology |
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10.1111/plb.12439 |
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Online |
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Biologie Geographie |
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Wiley, 2016 |
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Wiley, 2016 |
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1435-8603 1438-8677 |
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fernandezmartinez2016photosyntheticlimitationofseveralrepresentativesubalpinespeciesinthecatalanpyreneesinsummer |
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2016 |
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Wiley |
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ai |
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Plant Biology |
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49 |
| title |
Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_unstemmed |
Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_full |
Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_fullStr |
Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_full_unstemmed |
Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_short |
Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_sort |
photosynthetic limitation of several representative subalpine species in the catalan pyrenees in summer |
| topic |
Plant Science Ecology, Evolution, Behavior and Systematics General Medicine |
| url |
http://dx.doi.org/10.1111/plb.12439 |
| publishDate |
2016 |
| physical |
638-648 |
| description |
<jats:title>Abstract</jats:title><jats:p>Information on the photosynthetic process and its limitations is essential in order to predict both the capacity of species to adapt to conditions associated with climate change and the likely changes in plant communities. Considering that high‐mountain species are especially sensitive, three species representative of subalpine forests of the Central Catalan Pyrenees: mountain pine (<jats:italic>Pinus uncinata</jats:italic> Mill.), birch (<jats:italic>Betula pendula</jats:italic> Roth) and rhododendron (<jats:italic>Rhododendron ferrugineum</jats:italic> L.) were studied under conditions associated with climate change, such as low precipitation, elevated atmospheric [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] and high solar irradiation incident at Earth's surface, in order to detect any photosynthetic limitations. Short‐term high [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] increased photosynthesis rates (<jats:italic>A</jats:italic>) and water use efficiency (<jats:styled-content style="fixed-case">WUE</jats:styled-content>), especially in birch and mountain pine, whereas stomatal conductance (<jats:italic>g</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub>) was not altered in either species. Birch showed photosynthesis limitation through stomatal closure related to low rainfall, which induced photoinhibition and early foliar senescence. Rhododendron was especially affected by high irradiance, showing early photosynthetic saturation in low light, highest chlorophyll content, lowest gas exchange rates and least photoprotection. Mountain pine had the highest <jats:italic>A</jats:italic>, photosynthetic capacity (<jats:italic>A</jats:italic><jats:sub>max</jats:sub>) and light‐saturated rates of net <jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub> assimilation (<jats:italic>A</jats:italic><jats:sub>sat</jats:sub>), which were maintained under reduced precipitation. Furthermore, maximum quantum yield (F<jats:sub>v</jats:sub>/F<jats:sub>m</jats:sub>), thermal energy dissipation, <jats:styled-content style="fixed-case">PRI</jats:styled-content> and <jats:styled-content style="fixed-case">SIPI</jats:styled-content> radiometric index, and ascorbate content indicated improved photoprotection with respect to the other two species. However, maximum velocity of carboxylation of RuBisco (V<jats:sub>cmax</jats:sub>) indicated that N availability would be the main photosynthetic limitation in this species.</jats:p> |
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| description | <jats:title>Abstract</jats:title><jats:p>Information on the photosynthetic process and its limitations is essential in order to predict both the capacity of species to adapt to conditions associated with climate change and the likely changes in plant communities. Considering that high‐mountain species are especially sensitive, three species representative of subalpine forests of the Central Catalan Pyrenees: mountain pine (<jats:italic>Pinus uncinata</jats:italic> Mill.), birch (<jats:italic>Betula pendula</jats:italic> Roth) and rhododendron (<jats:italic>Rhododendron ferrugineum</jats:italic> L.) were studied under conditions associated with climate change, such as low precipitation, elevated atmospheric [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] and high solar irradiation incident at Earth's surface, in order to detect any photosynthetic limitations. Short‐term high [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] increased photosynthesis rates (<jats:italic>A</jats:italic>) and water use efficiency (<jats:styled-content style="fixed-case">WUE</jats:styled-content>), especially in birch and mountain pine, whereas stomatal conductance (<jats:italic>g</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub>) was not altered in either species. Birch showed photosynthesis limitation through stomatal closure related to low rainfall, which induced photoinhibition and early foliar senescence. Rhododendron was especially affected by high irradiance, showing early photosynthetic saturation in low light, highest chlorophyll content, lowest gas exchange rates and least photoprotection. Mountain pine had the highest <jats:italic>A</jats:italic>, photosynthetic capacity (<jats:italic>A</jats:italic><jats:sub>max</jats:sub>) and light‐saturated rates of net <jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub> assimilation (<jats:italic>A</jats:italic><jats:sub>sat</jats:sub>), which were maintained under reduced precipitation. Furthermore, maximum quantum yield (F<jats:sub>v</jats:sub>/F<jats:sub>m</jats:sub>), thermal energy dissipation, <jats:styled-content style="fixed-case">PRI</jats:styled-content> and <jats:styled-content style="fixed-case">SIPI</jats:styled-content> radiometric index, and ascorbate content indicated improved photoprotection with respect to the other two species. However, maximum velocity of carboxylation of RuBisco (V<jats:sub>cmax</jats:sub>) indicated that N availability would be the main photosynthetic limitation in this species.</jats:p> |
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| imprint | Wiley, 2016 |
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| spelling | Fernàndez‐Martínez, J. Fleck, I. 1435-8603 1438-8677 Wiley Plant Science Ecology, Evolution, Behavior and Systematics General Medicine http://dx.doi.org/10.1111/plb.12439 <jats:title>Abstract</jats:title><jats:p>Information on the photosynthetic process and its limitations is essential in order to predict both the capacity of species to adapt to conditions associated with climate change and the likely changes in plant communities. Considering that high‐mountain species are especially sensitive, three species representative of subalpine forests of the Central Catalan Pyrenees: mountain pine (<jats:italic>Pinus uncinata</jats:italic> Mill.), birch (<jats:italic>Betula pendula</jats:italic> Roth) and rhododendron (<jats:italic>Rhododendron ferrugineum</jats:italic> L.) were studied under conditions associated with climate change, such as low precipitation, elevated atmospheric [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] and high solar irradiation incident at Earth's surface, in order to detect any photosynthetic limitations. Short‐term high [<jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub>] increased photosynthesis rates (<jats:italic>A</jats:italic>) and water use efficiency (<jats:styled-content style="fixed-case">WUE</jats:styled-content>), especially in birch and mountain pine, whereas stomatal conductance (<jats:italic>g</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub>) was not altered in either species. Birch showed photosynthesis limitation through stomatal closure related to low rainfall, which induced photoinhibition and early foliar senescence. Rhododendron was especially affected by high irradiance, showing early photosynthetic saturation in low light, highest chlorophyll content, lowest gas exchange rates and least photoprotection. Mountain pine had the highest <jats:italic>A</jats:italic>, photosynthetic capacity (<jats:italic>A</jats:italic><jats:sub>max</jats:sub>) and light‐saturated rates of net <jats:styled-content style="fixed-case">CO</jats:styled-content><jats:sub>2</jats:sub> assimilation (<jats:italic>A</jats:italic><jats:sub>sat</jats:sub>), which were maintained under reduced precipitation. Furthermore, maximum quantum yield (F<jats:sub>v</jats:sub>/F<jats:sub>m</jats:sub>), thermal energy dissipation, <jats:styled-content style="fixed-case">PRI</jats:styled-content> and <jats:styled-content style="fixed-case">SIPI</jats:styled-content> radiometric index, and ascorbate content indicated improved photoprotection with respect to the other two species. However, maximum velocity of carboxylation of RuBisco (V<jats:sub>cmax</jats:sub>) indicated that N availability would be the main photosynthetic limitation in this species.</jats:p> Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer Plant Biology |
| spellingShingle | Fernàndez‐Martínez, J., Fleck, I., Plant Biology, Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer, Plant Science, Ecology, Evolution, Behavior and Systematics, General Medicine |
| title | Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_full | Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_fullStr | Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_full_unstemmed | Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_short | Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| title_sort | photosynthetic limitation of several representative subalpine species in the catalan pyrenees in summer |
| title_unstemmed | Photosynthetic limitation of several representative subalpine species in the Catalan Pyrenees in summer |
| topic | Plant Science, Ecology, Evolution, Behavior and Systematics, General Medicine |
| url | http://dx.doi.org/10.1111/plb.12439 |