Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum
Myriolimon ferulaceum is a leafless species and close relative to Limonium inhabiting the same harsh environments in the rocky coast and salt marshes, with discontinuous distribution in western and central coast of the Mediterranean Basin and southern Iberian Peninsula. In order to test for the drou...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of the Czech Republic, Institute of Experimental Botany
2019-11-01
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| Series: | Photosynthetica |
| Subjects: | |
| Online Access: | https://ps.ueb.cas.cz/artkey/phs-201904-0002_photosynthesis-response-to-severe-water-deficit-in-terminal-stems-of-myriolimon-ferulaceum.php |
| _version_ | 1818656110522925056 |
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| author | M.À. CONESA J. GALMÉS |
| author_facet | M.À. CONESA J. GALMÉS |
| author_sort | M.À. CONESA |
| collection | DOAJ |
| description | Myriolimon ferulaceum is a leafless species and close relative to Limonium inhabiting the same harsh environments in the rocky coast and salt marshes, with discontinuous distribution in western and central coast of the Mediterranean Basin and southern Iberian Peninsula. In order to test for the drought adaptive importance of photosynthesis in stems, and to decipher advantages and drawbacks of stem vs. leaf photosynthesis under drought conditions, M. ferulaceum was grown under the well-watered and severe water deficit conditions used in previous experiments with Limonium. Growth, stem anatomy, photosynthesis and gas exchange, and Rubisco-related traits were measured. Growth capacity in M. ferulaceum was higher than that of many Limonium under well-watered conditions, where limitations to photosynthesis were mostly biochemical. However, severe water deficit conditions had a higher impact in the leafless species, where the main photosynthesis limitation was stomatal conductance. High intrinsic water-use efficiency under well-watered conditions and high mesophyll conductance to stomatal conductance ratio under severe water deficit conditions were the main drivers of growth capacity in M. ferulaceum. |
| first_indexed | 2024-12-17T03:20:22Z |
| format | Article |
| id | doaj.art-73942576d14c4731933947a10f25d7db |
| institution | Directory Open Access Journal |
| issn | 0300-3604 1573-9058 |
| language | English |
| last_indexed | 2024-12-17T03:20:22Z |
| publishDate | 2019-11-01 |
| publisher | Academy of Sciences of the Czech Republic, Institute of Experimental Botany |
| record_format | Article |
| series | Photosynthetica |
| spelling | doaj.art-73942576d14c4731933947a10f25d7db2022-12-21T22:05:32ZengAcademy of Sciences of the Czech Republic, Institute of Experimental BotanyPhotosynthetica0300-36041573-90582019-11-0157492193010.32615/ps.2019.110phs-201904-0002Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceumM.À. CONESA0J. GALMÉS1Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Ctra. Valldemossa km. 7.5, 07122 Palma, Balearic IslandsResearch Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Ctra. Valldemossa km. 7.5, 07122 Palma, Balearic IslandsMyriolimon ferulaceum is a leafless species and close relative to Limonium inhabiting the same harsh environments in the rocky coast and salt marshes, with discontinuous distribution in western and central coast of the Mediterranean Basin and southern Iberian Peninsula. In order to test for the drought adaptive importance of photosynthesis in stems, and to decipher advantages and drawbacks of stem vs. leaf photosynthesis under drought conditions, M. ferulaceum was grown under the well-watered and severe water deficit conditions used in previous experiments with Limonium. Growth, stem anatomy, photosynthesis and gas exchange, and Rubisco-related traits were measured. Growth capacity in M. ferulaceum was higher than that of many Limonium under well-watered conditions, where limitations to photosynthesis were mostly biochemical. However, severe water deficit conditions had a higher impact in the leafless species, where the main photosynthesis limitation was stomatal conductance. High intrinsic water-use efficiency under well-watered conditions and high mesophyll conductance to stomatal conductance ratio under severe water deficit conditions were the main drivers of growth capacity in M. ferulaceum.https://ps.ueb.cas.cz/artkey/phs-201904-0002_photosynthesis-response-to-severe-water-deficit-in-terminal-stems-of-myriolimon-ferulaceum.phpbiomass; limitation analysis; rbcl; rubisco kinetics; water consumption; water stress. |
| spellingShingle | M.À. CONESA J. GALMÉS Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum Photosynthetica biomass; limitation analysis; rbcl; rubisco kinetics; water consumption; water stress. |
| title | Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum |
| title_full | Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum |
| title_fullStr | Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum |
| title_full_unstemmed | Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum |
| title_short | Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum |
| title_sort | photosynthesis response to severe water deficit in terminal stems of myriolimon ferulaceum |
| topic | biomass; limitation analysis; rbcl; rubisco kinetics; water consumption; water stress. |
| url | https://ps.ueb.cas.cz/artkey/phs-201904-0002_photosynthesis-response-to-severe-water-deficit-in-terminal-stems-of-myriolimon-ferulaceum.php |
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