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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
07/02/2025 |
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Data da última atualização: |
07/02/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, F. F. S. da; OLIVEIRA, G. M. de; ARAUJO, M. do N.; SEAL, C. E.; PELACANI, C. R.; DANTAS, B. F. |
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Afiliação: |
FABRICIO FRANCISCO SANTOS DA SILVA, FEDERAL UNIVERSITY OF VALE DO SÃO FRANCISCO; GILMARA MOREIRA DE OLIVEIRA, STATE UNIVERSITY OF FEIRA DE SANTANA; MARCELO DO NASCIMENTO ARAUJO, CENTRO MAURÍCIO DE NASSAU; CHARLOTTE E. SEAL, ROYAL BOTANIC GARDENS; CLAUDINEIA REGINA PELACANI, STATE UNIVERSITY OF FEIRA DE SANTANA; BARBARA FRANCA DANTAS, CPATSA. |
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Título: |
Seedlings of dry forest‑adapted species resume growth after desiccation. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Brazilian Journal of Botany, v. 47, p. 953-962, 2024. |
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DOI: |
https://doi.org/10.1007/s40415-024-00998-w |
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Idioma: |
Inglês |
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Conteúdo: |
Desiccation tolerance (DT) in germinated seeds is directly related to the success of seedling survival of seasonally dry tropical forest and woodland (SDTFW) species. The objective of this study was to evaluate whether the seeds of Anadenanthera colubrina and Cenostigma pyramidale present post-germinative DT and until what stage of seedling development does tolerance persist. Seedlings of different sizes were separated into four categories of initial root length (IRL) and dried for 24 and 72 h. Seedling survival was evaluated 7 and 14 days after rehydration. DT was considered when the seedlings resumed growth after desiccation and rehydration to the original water content. Both species were tolerant to post-germination desiccation. Cenostigma pyramidale seedlings with IRL as low as 5-mm survived desiccation followed by up to 14 days of rehydration, while most larger seedlings (with IRL from 5.00 to 10.99 mm) failed to resume growth after desiccation/ rehydration. Smaller seedlings before desiccation showed greater growth and longer seedling lengths after rehydration for both species. Anadenanthera colubrina seedlings with IRL between 3.00 and 10.99 mm had their growth compromised when desiccated for a longer period. As a survival strategy, the seedlings of both species lose the primary root and produce adventitious roots after desiccation. Therefore, the survival of seedlings of both species to desiccation has a direct effect on the recruitment of SDTFW species. |
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Palavras-Chave: |
Angico; Categorização de mudas; Cenostigma pyramidale; Dessecação; Espécies florestas; Grminação de sementes; Poincianella pyramidalis; Processamento de sementes; Reidratação de mudas; SDTFW; Tolerância à dessecação. |
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Thesagro: |
Caatinga; Espécie Nativa; Floresta Tropical; Leguminosae; Semente. |
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Thesaurus Nal: |
Anadenanthera colubrina; Desiccation (plant physiology); Rehydration. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02741naa a2200421 a 4500
001 2172474
005 2025-02-07
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s40415-024-00998-w$2DOI
100 1 $aSANTOS, F. F. S. da
245 $aSeedlings of dry forest‑adapted species resume growth after desiccation.$h[electronic resource]
260 $c2024
520 $aDesiccation tolerance (DT) in germinated seeds is directly related to the success of seedling survival of seasonally dry tropical forest and woodland (SDTFW) species. The objective of this study was to evaluate whether the seeds of Anadenanthera colubrina and Cenostigma pyramidale present post-germinative DT and until what stage of seedling development does tolerance persist. Seedlings of different sizes were separated into four categories of initial root length (IRL) and dried for 24 and 72 h. Seedling survival was evaluated 7 and 14 days after rehydration. DT was considered when the seedlings resumed growth after desiccation and rehydration to the original water content. Both species were tolerant to post-germination desiccation. Cenostigma pyramidale seedlings with IRL as low as 5-mm survived desiccation followed by up to 14 days of rehydration, while most larger seedlings (with IRL from 5.00 to 10.99 mm) failed to resume growth after desiccation/ rehydration. Smaller seedlings before desiccation showed greater growth and longer seedling lengths after rehydration for both species. Anadenanthera colubrina seedlings with IRL between 3.00 and 10.99 mm had their growth compromised when desiccated for a longer period. As a survival strategy, the seedlings of both species lose the primary root and produce adventitious roots after desiccation. Therefore, the survival of seedlings of both species to desiccation has a direct effect on the recruitment of SDTFW species.
650 $aAnadenanthera colubrina
650 $aDesiccation (plant physiology)
650 $aRehydration
650 $aCaatinga
650 $aEspécie Nativa
650 $aFloresta Tropical
650 $aLeguminosae
650 $aSemente
653 $aAngico
653 $aCategorização de mudas
653 $aCenostigma pyramidale
653 $aDessecação
653 $aEspécies florestas
653 $aGrminação de sementes
653 $aPoincianella pyramidalis
653 $aProcessamento de sementes
653 $aReidratação de mudas
653 $aSDTFW
653 $aTolerância à dessecação
700 1 $aOLIVEIRA, G. M. de
700 1 $aARAUJO, M. do N.
700 1 $aSEAL, C. E.
700 1 $aPELACANI, C. R.
700 1 $aDANTAS, B. F.
773 $tBrazilian Journal of Botany$gv. 47, p. 953-962, 2024.
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Registro original: |
Embrapa Semiárido (CPATSA) |
