| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
27/06/2016 |
|
Data da última atualização: |
24/05/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BINKS, O.; MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S. S.; OLIVEIRA, A. A. R. de; FERREIRA, L.; CHRISTOFFERSEN, B.; NARDINI, A.; MENCUCCINI, M. |
|
Afiliação: |
Oliver Binks, University of Edinburgh; Patrick Meir, University of Edinburgh / Australian National University; Lucy Rowland, University of Edinburgh; Antonio Carlos Lola da Costa, UFPA; STEEL SILVA VASCONCELOS, CPATU; Alex Antonio Ribeiro de Oliveira, UFPA; Leandro Ferreira, MPEG; Bradley Christoffersen, Earth and Environmental Science, Los Alamos National Laboratory; Andrea Nardini, Universitá di Trieste; Maurizio Mencuccini, University of Edinburgh / ICREA at CREAF. |
|
Título: |
Plasticity in leaf-level water relations of tropical rainforest trees in response to experimental drought. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
New Phytologist, v. 211, n. 2, p. 477-488, July 2016. |
|
DOI: |
10.1111/nph.13927 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The tropics are predicted to become warmer and drier, and understanding the sensitivity of tree species to drought is important for characterizing the risk to forests of climate change. This study makes use of a long-term drought experiment in the Amazon rainforest to evaluate the role of leaf-level water relations, leaf anatomy and their plasticity in response to drought in six tree genera. The variables (osmotic potential at full turgor, turgor loss point, capacitance, elastic modulus, relative water content and saturated water content) were compared between seasons and between plots (control and through-fall exclusion) enabling a comparison between short- and long-term plasticity in traits. Leaf anatomical traits were correlated with water relation parameters to determine whether water relations differed among tissues. The key findings were: osmotic adjustment occurred in response to the long-term drought treatment; species resistant to drought stress showed less osmotic adjustment than drought-sensitive species; and water relation traits were correlated with tissue properties, especially the thickness of the abaxial epidermis and the spongy mesophyll. These findings demonstrate that cell-level water relation traits can acclimate to long-term water stress, and highlight the limitations of extrapolating the results of short-term studies to temporal scales associated with climate change. |
|
Palavras-Chave: |
Anatomia foliar; Plasticidade; Relações hídricas; Seca experimental. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/144817/1/nph13927.pdf
|
|
Marc: |
LEADER 02268naa a2200289 a 4500
001 2047926
005 2022-05-24
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1111/nph.13927$2DOI
100 1 $aBINKS, O.
245 $aPlasticity in leaf-level water relations of tropical rainforest trees in response to experimental drought.$h[electronic resource]
260 $c2016
520 $aThe tropics are predicted to become warmer and drier, and understanding the sensitivity of tree species to drought is important for characterizing the risk to forests of climate change. This study makes use of a long-term drought experiment in the Amazon rainforest to evaluate the role of leaf-level water relations, leaf anatomy and their plasticity in response to drought in six tree genera. The variables (osmotic potential at full turgor, turgor loss point, capacitance, elastic modulus, relative water content and saturated water content) were compared between seasons and between plots (control and through-fall exclusion) enabling a comparison between short- and long-term plasticity in traits. Leaf anatomical traits were correlated with water relation parameters to determine whether water relations differed among tissues. The key findings were: osmotic adjustment occurred in response to the long-term drought treatment; species resistant to drought stress showed less osmotic adjustment than drought-sensitive species; and water relation traits were correlated with tissue properties, especially the thickness of the abaxial epidermis and the spongy mesophyll. These findings demonstrate that cell-level water relation traits can acclimate to long-term water stress, and highlight the limitations of extrapolating the results of short-term studies to temporal scales associated with climate change.
653 $aAnatomia foliar
653 $aPlasticidade
653 $aRelações hídricas
653 $aSeca experimental
700 1 $aMEIR, P.
700 1 $aROWLAND, L.
700 1 $aCOSTA, A. C. L. da
700 1 $aVASCONCELOS, S. S.
700 1 $aOLIVEIRA, A. A. R. de
700 1 $aFERREIRA, L.
700 1 $aCHRISTOFFERSEN, B.
700 1 $aNARDINI, A.
700 1 $aMENCUCCINI, M.
773 $tNew Phytologist$gv. 211, n. 2, p. 477-488, July 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Algodão. |
|
Data corrente: |
18/03/2016 |
|
Data da última atualização: |
18/03/2016 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
BATISTA, V. G. L.; PINHEIRO, M. P. N.; MELO FILHO, P. A.; SANTOS, R. C. dos; LIMA, L. M. de. |
|
Afiliação: |
VANDRE GUEVARA LYRA BATISTA, UEPB - CAMPINA GRANDE; MORGANA POLLYNNE NÓBREGA PINHEIRO, UFRPE - REDE NORDESTE DE BIOTECNOLOGIA; PÉRICLES DE ALBUQUERQUE MELO FILHO, UFRPE; ROSEANE CAVALCANTI DOS SANTOS, CNPA; LIZIANE MARIA DE LIMA, CNPA. |
|
Título: |
Temporal and tissue expression of genes involved in buds of earliness cotton cultivar. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
Genetics and Molecular Research, v. 14, n. 3, p. 7386-7394, 2015. |
|
ISSN: |
1676-5680 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Gene sequences previously identified in Arabidopsis buds were used as references in order to estimate temporal and tissue expression in buds, leaves, stem, and root tissues in cotton plants. Buds were evaluated during 3 phases: 2-8, 10-12, and 14-20 mm. Primers were designed for the ARF6, ATFY, and SEUSS genes for use in semi-quantitative reverse transcription-polymerase chain reaction and quantitative reverse transcription-polymerase chain reaction. Different levels of expression of the 3 genes were confirmed in cotton buds as well as in other tissues. The peak of gene expression was observed in buds sized 10-12 mm, after which expression decreased in larger buds. The gene GhFYPP3 was the most promising for further prospection of promoter regions, with regular expression patterns observed in bud sizes 10-12 and 14-20 mm. This trait was not observed in others genes. |
|
Palavras-Chave: |
Bud development. |
|
Thesagro: |
Algodão; Botão floral; Gene; Gossypium hirsutum. |
|
Thesaurus NAL: |
cotton. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/141407/1/Temporal-and-tissue-expression-of-genes-....pdf
|
|
Marc: |
LEADER 01606naa a2200253 a 4500
001 2041409
005 2016-03-18
008 2015 bl uuuu u00u1 u #d
022 $a1676-5680
100 1 $aBATISTA, V. G. L.
245 $aTemporal and tissue expression of genes involved in buds of earliness cotton cultivar.$h[electronic resource]
260 $c2015
520 $aGene sequences previously identified in Arabidopsis buds were used as references in order to estimate temporal and tissue expression in buds, leaves, stem, and root tissues in cotton plants. Buds were evaluated during 3 phases: 2-8, 10-12, and 14-20 mm. Primers were designed for the ARF6, ATFY, and SEUSS genes for use in semi-quantitative reverse transcription-polymerase chain reaction and quantitative reverse transcription-polymerase chain reaction. Different levels of expression of the 3 genes were confirmed in cotton buds as well as in other tissues. The peak of gene expression was observed in buds sized 10-12 mm, after which expression decreased in larger buds. The gene GhFYPP3 was the most promising for further prospection of promoter regions, with regular expression patterns observed in bud sizes 10-12 and 14-20 mm. This trait was not observed in others genes.
650 $acotton
650 $aAlgodão
650 $aBotão floral
650 $aGene
650 $aGossypium hirsutum
653 $aBud development
700 1 $aPINHEIRO, M. P. N.
700 1 $aMELO FILHO, P. A.
700 1 $aSANTOS, R. C. dos
700 1 $aLIMA, L. M. de
773 $tGenetics and Molecular Research$gv. 14, n. 3, p. 7386-7394, 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Algodão (CNPA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
