Strategies of two tropical woody species to tolerate salt stress
This study aimed to evaluate the leaf primary metabolism in two woody species, Sterculia foetida and Bombacopsis glabra. Both species have seeds rich in oil and they are largely found in regions with irregularities in water availability. Seedlings were grown in a greenhouse from seeds. At 140 days a...
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| Format: | Article |
| Language: | English |
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Embrapa Florestas
2017-03-01
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| Series: | Pesquisa Florestal Brasileira |
| Subjects: | |
| Online Access: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332 |
| _version_ | 1818900077761003520 |
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| author | Bruno Melo Lustosa Lígia Gomes Ferreira Souza Gabriella Frosi Hiram Marinho Falcão Silvia Pereira Marciel Teixeira Oliveira Mauro Guida Santos |
| author_facet | Bruno Melo Lustosa Lígia Gomes Ferreira Souza Gabriella Frosi Hiram Marinho Falcão Silvia Pereira Marciel Teixeira Oliveira Mauro Guida Santos |
| author_sort | Bruno Melo Lustosa |
| collection | DOAJ |
| description | This study aimed to evaluate the leaf primary metabolism in two woody species, Sterculia foetida and Bombacopsis glabra. Both species have seeds rich in oil and they are largely found in regions with irregularities in water availability. Seedlings were grown in a greenhouse from seeds. At 140 days after emergence, 50% of the plants were subjected to salt stress for 23 days, daily receiving 100 mM of NaCl solution. In both species, leaf stomata conductance and water potential decreased quickly under salt stress. The two species showed different strategies in photosynthetic pigment concentration and components of nitrogen metabolism. S. foetida kept the pigment concentration unchanged after 23 days of stress, while B. glabra increased concentration of chlorophyll a and carotenoids. S. foetida showed a high leaf concentration of K+ in stressed plants and a Na+/K+ ratio without differences when compared to control. Thus, S. foetida presented a better ionic balance, while B. glabra invested in photoprotection. Therefore, both species present potential to be planted in Brazilian Northeast, where water deficit and salt stress are challenging for annual crops. |
| first_indexed | 2024-12-19T19:58:08Z |
| format | Article |
| id | doaj.art-f7d37a5cca384d59ab5a252c28ea3f2f |
| institution | Directory Open Access Journal |
| issn | 1809-3647 1983-2605 |
| language | English |
| last_indexed | 2024-12-19T19:58:08Z |
| publishDate | 2017-03-01 |
| publisher | Embrapa Florestas |
| record_format | Article |
| series | Pesquisa Florestal Brasileira |
| spelling | doaj.art-f7d37a5cca384d59ab5a252c28ea3f2f2022-12-21T20:07:45ZengEmbrapa FlorestasPesquisa Florestal Brasileira1809-36471983-26052017-03-01378910.4336/2017.pfb.37.89.1332566Strategies of two tropical woody species to tolerate salt stressBruno Melo Lustosa0Lígia Gomes Ferreira Souza1Gabriella Frosi2Hiram Marinho Falcão3Silvia Pereira4Marciel Teixeira Oliveira5Mauro Guida Santos6Universidade Federal de PernambucoUniversidade Federal de PernambucoUniversidade Federal de PernambucoUniversidade Federal de PernambucoUniversidade Federal de PernambucoUniversidade Federal de PernambucoUniversidade Federal de PernambucoThis study aimed to evaluate the leaf primary metabolism in two woody species, Sterculia foetida and Bombacopsis glabra. Both species have seeds rich in oil and they are largely found in regions with irregularities in water availability. Seedlings were grown in a greenhouse from seeds. At 140 days after emergence, 50% of the plants were subjected to salt stress for 23 days, daily receiving 100 mM of NaCl solution. In both species, leaf stomata conductance and water potential decreased quickly under salt stress. The two species showed different strategies in photosynthetic pigment concentration and components of nitrogen metabolism. S. foetida kept the pigment concentration unchanged after 23 days of stress, while B. glabra increased concentration of chlorophyll a and carotenoids. S. foetida showed a high leaf concentration of K+ in stressed plants and a Na+/K+ ratio without differences when compared to control. Thus, S. foetida presented a better ionic balance, while B. glabra invested in photoprotection. Therefore, both species present potential to be planted in Brazilian Northeast, where water deficit and salt stress are challenging for annual crops.https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332Biochemical analysisLeaf gas exchangeLeaf water potential |
| spellingShingle | Bruno Melo Lustosa Lígia Gomes Ferreira Souza Gabriella Frosi Hiram Marinho Falcão Silvia Pereira Marciel Teixeira Oliveira Mauro Guida Santos Strategies of two tropical woody species to tolerate salt stress Pesquisa Florestal Brasileira Biochemical analysis Leaf gas exchange Leaf water potential |
| title | Strategies of two tropical woody species to tolerate salt stress |
| title_full | Strategies of two tropical woody species to tolerate salt stress |
| title_fullStr | Strategies of two tropical woody species to tolerate salt stress |
| title_full_unstemmed | Strategies of two tropical woody species to tolerate salt stress |
| title_short | Strategies of two tropical woody species to tolerate salt stress |
| title_sort | strategies of two tropical woody species to tolerate salt stress |
| topic | Biochemical analysis Leaf gas exchange Leaf water potential |
| url | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332 |
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