Differential leaf gas exchange responses to salinity and drought in the mangrove tree Avicecennia germinans (Avicenniaceae)
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| Format: | Artículo científico |
| Language: | en |
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Universidad de Costa Rica
2006
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| _version_ | 1876474333485858816 |
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| author | M.A. Sobrado |
| author_facet | M.A. Sobrado |
| contents | Differential leaf gas exchange responses to salinity and drought in the mangrove tree Avicecennia germinans (Avicenniaceae) M.A. Sobrado Biología NaCl mangrove Avicennia germinans stomatal conductance water use efficiency Leaf gas exchange was assessed in Avicennia germinans L. grown under different NaCl concentrations (0-40), after salt-relief, and then during drought. Stomatal conductance (gs) and net photosynthetic rate (Pn) decreased with increasing NaCl concentration, and intrinsic water use efficiency (Pn / gs) increased. Under desalinization Pn / gs declined. Thus, gs did not change in plants grown at low NaCl concentration (10), but increased up to 30-32% at higher NaCl concentration (20 - 40). However, Pn was only slightly enhanced (10- 15%). Under drought, Pn decreased by as much as 46% in plants grown at low NaCl concentration (10) and by 22% at high NaCl concentration (40). Thus, Pn / gs decreased and water use efficiency was lower during drought compared to estimates prior to salt-relief. Rev. Biol. Trop. 54(2): 371-375. Epub 2006 Jun 01 2006 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44954206 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.54 |
| format | Artículo científico |
| id | redalyc_44954206 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Differential leaf gas exchange responses to salinity and drought in the mangrove tree Avicecennia germinans (Avicenniaceae) M.A. Sobrado Biología NaCl mangrove Avicennia germinans stomatal conductance water use efficiency Differential leaf gas exchange responses to salinity and drought in the mangrove tree Avicecennia germinans (Avicenniaceae) M.A. Sobrado Biología NaCl mangrove Avicennia germinans stomatal conductance water use efficiency Leaf gas exchange was assessed in Avicennia germinans L. grown under different NaCl concentrations (0-40), after salt-relief, and then during drought. Stomatal conductance (gs) and net photosynthetic rate (Pn) decreased with increasing NaCl concentration, and intrinsic water use efficiency (Pn / gs) increased. Under desalinization Pn / gs declined. Thus, gs did not change in plants grown at low NaCl concentration (10), but increased up to 30-32% at higher NaCl concentration (20 - 40). However, Pn was only slightly enhanced (10- 15%). Under drought, Pn decreased by as much as 46% in plants grown at low NaCl concentration (10) and by 22% at high NaCl concentration (40). Thus, Pn / gs decreased and water use efficiency was lower during drought compared to estimates prior to salt-relief. Rev. Biol. Trop. 54(2): 371-375. Epub 2006 Jun 01 2006 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44954206 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.54 |
| title | Differential leaf gas exchange responses to salinity and drought in the mangrove tree Avicecennia germinans (Avicenniaceae) |
| topic | Biología NaCl mangrove Avicennia germinans stomatal conductance water use efficiency |
| url | https://www.redalyc.org/articulo.oa?id=44954206 |