Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization
ABSTRACT: Erythrina velutina Willd. (Fabaceae) is a tree species that bears social, ecological, and economic importance for northeastern Brazil, a region with frequent temperature variations. The objective of this work was to evaluate the mobilization of reserves during seed germination and seedling...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Tecnologia de Sementes
2020-08-01
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| Series: | Journal of Seed Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372020000100126&tlng=en |
| _version_ | 1818988981084225536 |
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| author | Francival Cardoso Felix Josenilda Aprígio Dantas de Medeiros Cibele dos Santos Ferrari Mauro Vasconcelos Pacheco Salvador Barros Torres |
| author_facet | Francival Cardoso Felix Josenilda Aprígio Dantas de Medeiros Cibele dos Santos Ferrari Mauro Vasconcelos Pacheco Salvador Barros Torres |
| author_sort | Francival Cardoso Felix |
| collection | DOAJ |
| description | ABSTRACT: Erythrina velutina Willd. (Fabaceae) is a tree species that bears social, ecological, and economic importance for northeastern Brazil, a region with frequent temperature variations. The objective of this work was to evaluate the mobilization of reserves during seed germination and seedling establishment of E. velutina at different temperatures, and how these mechanisms are affected in a thermal-stress situation. The seeds germinated at 5, 15, 25, 35, and 45 °C, and the physiological and biochemical aspects of reserve mobilization (starch, lipids, and total proteins) were assessed during seedling establishment. Germination, vigor, and the mobilization of reserves from the cotyledons to the embryonic axis are affected according to the incubation temperature. The temperature of 25 °C favors the mobilization of reserves during seed germination and seedling establishment in E. velutina. In a situation of thermal stress, high temperatures affect the establishment of the seedlings, whereas low temperatures compromise the mobilization of reserves. |
| first_indexed | 2024-12-20T19:31:13Z |
| format | Article |
| id | doaj.art-e55fcd6dec344f10b919879253d68091 |
| institution | Directory Open Access Journal |
| issn | 2317-1545 |
| language | English |
| last_indexed | 2024-12-20T19:31:13Z |
| publishDate | 2020-08-01 |
| publisher | Associação Brasileira de Tecnologia de Sementes |
| record_format | Article |
| series | Journal of Seed Science |
| spelling | doaj.art-e55fcd6dec344f10b919879253d680912022-12-21T19:28:46ZengAssociação Brasileira de Tecnologia de SementesJournal of Seed Science2317-15452020-08-014210.1590/2317-1545v42239839Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilizationFrancival Cardoso Felixhttps://orcid.org/0000-0002-6518-5697Josenilda Aprígio Dantas de Medeiroshttps://orcid.org/0000-0001-5759-6771Cibele dos Santos Ferrarihttps://orcid.org/0000-0003-2940-0190Mauro Vasconcelos Pachecohttps://orcid.org/0000-0002-0447-9800Salvador Barros Torreshttps://orcid.org/0000-0003-0668-3327ABSTRACT: Erythrina velutina Willd. (Fabaceae) is a tree species that bears social, ecological, and economic importance for northeastern Brazil, a region with frequent temperature variations. The objective of this work was to evaluate the mobilization of reserves during seed germination and seedling establishment of E. velutina at different temperatures, and how these mechanisms are affected in a thermal-stress situation. The seeds germinated at 5, 15, 25, 35, and 45 °C, and the physiological and biochemical aspects of reserve mobilization (starch, lipids, and total proteins) were assessed during seedling establishment. Germination, vigor, and the mobilization of reserves from the cotyledons to the embryonic axis are affected according to the incubation temperature. The temperature of 25 °C favors the mobilization of reserves during seed germination and seedling establishment in E. velutina. In a situation of thermal stress, high temperatures affect the establishment of the seedlings, whereas low temperatures compromise the mobilization of reserves.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372020000100126&tlng=engermination ecophysiologyreserve compoundsseed biochemistrysemiaridthermal stress |
| spellingShingle | Francival Cardoso Felix Josenilda Aprígio Dantas de Medeiros Cibele dos Santos Ferrari Mauro Vasconcelos Pacheco Salvador Barros Torres Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization Journal of Seed Science germination ecophysiology reserve compounds seed biochemistry semiarid thermal stress |
| title | Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization |
| title_full | Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization |
| title_fullStr | Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization |
| title_full_unstemmed | Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization |
| title_short | Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization |
| title_sort | molecular aspects during seed germination of erythrina velutina willd under different temperatures part 1 reserve mobilization |
| topic | germination ecophysiology reserve compounds seed biochemistry semiarid thermal stress |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372020000100126&tlng=en |
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