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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
24/06/2021 |
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Data da última atualização: |
30/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOMES, F. P.; ALMEIDA, A. F. de; MIELKE, M. S.; LAVIOLA, B. G.; SILVA, L. D. da. |
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Afiliação: |
FÁBIO PINTO GOMES, Universidade Estadual de Santa Cruz; ALEX-ALAN FURTADO DE ALMEIDA, Universidade Estadual de Santa Cruz; MARCELO SCHRAMM MIELKE, Universidade Estadual de Santa Cruz; BRUNO GALVEAS LAVIOLA, CNPAE; LEANDRO DIAS DA SILVA, Universidade Estadual do Sudoeste da Bahia. |
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Título: |
Nocturnal acidification in leaves of two genotypes of Jatropha curcas L., subjected to soil water deficit. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Plant Physiology Reports, v. 26, p. 220-230, 2021. |
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Volume: |
26 |
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Páginas: |
p. 220-230 |
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ISSN: |
2662-2548 |
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DOI: |
https://doi.org/10.1007/s40502-021-00576-2 |
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Idioma: |
Inglês |
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Conteúdo: |
Jatropha curcas has been considered as a potential oil source for biodiesel production in tropical and subtropical areas. The relationships between water deficit-induced nocturnal acidification and leaf succulence, gas exchange rates and water relations in leaves of J. curcas were accessed in a greenhouse experiment. Two genotypes, from regions of Brazil with contrasting climate (CNPAE183, from a dry and hot tropical climate and CNPAE191, from a humid subtropical climate), were maintained under full irrigation or were subjected to water deficit for 49 days followed by recovery for 7 days. Leaf relative water content decreased with water deficit from 85.4 to 77.5%, in both genotypes. Pre-dawn leaf water potential decreased from - 0.5 MPa in irrigated plants - 1.0 MPa (in CNPAE183) and to - MPa (in CNPAE191). Slow and less intense decrease of leaf gas exchange in CNPAE191 than in CNPAE183 suggests a high effective water use under water deficit in the former. Leaf nocturnal acidification increased 4.3-fold in water deficit plants of both genotypes and a positive correlation between nocturnal acidification and leaf succulence, expressed as fresh mass per dry mass, was observed. Water deficit-induced nocturnal acid accumulation and a positive correlation between nocturnal acidification and leaf succulence were thoroughly demonstrated. While such nocturnal acidification may be related to osmotic adjustment, its correlation with leaf succulence suggests a weak CAM-cycling activity in leaves of J. curcas which, along with other water-conserving mechanisms, may help to explain the widely reported drought tolerance of this species. MenosJatropha curcas has been considered as a potential oil source for biodiesel production in tropical and subtropical areas. The relationships between water deficit-induced nocturnal acidification and leaf succulence, gas exchange rates and water relations in leaves of J. curcas were accessed in a greenhouse experiment. Two genotypes, from regions of Brazil with contrasting climate (CNPAE183, from a dry and hot tropical climate and CNPAE191, from a humid subtropical climate), were maintained under full irrigation or were subjected to water deficit for 49 days followed by recovery for 7 days. Leaf relative water content decreased with water deficit from 85.4 to 77.5%, in both genotypes. Pre-dawn leaf water potential decreased from - 0.5 MPa in irrigated plants - 1.0 MPa (in CNPAE183) and to - MPa (in CNPAE191). Slow and less intense decrease of leaf gas exchange in CNPAE191 than in CNPAE183 suggests a high effective water use under water deficit in the former. Leaf nocturnal acidification increased 4.3-fold in water deficit plants of both genotypes and a positive correlation between nocturnal acidification and leaf succulence, expressed as fresh mass per dry mass, was observed. Water deficit-induced nocturnal acid accumulation and a positive correlation between nocturnal acidification and leaf succulence were thoroughly demonstrated. While such nocturnal acidification may be related to osmotic adjustment, its correlation with leaf succulence suggests a weak CAM-cycling activity ... Mostrar Tudo |
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Palavras-Chave: |
Leaf gas exchange. |
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Thesagro: |
Bioenergia; Euphorbiaceae. |
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Thesaurus Nal: |
Bioenergy; Drought tolerance; Jatropha. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02493naa a2200289 a 4500
001 2132548
005 2021-06-30
008 2021 bl uuuu u00u1 u #d
022 $a2662-2548
024 7 $ahttps://doi.org/10.1007/s40502-021-00576-2$2DOI
100 1 $aGOMES, F. P.
245 $aNocturnal acidification in leaves of two genotypes of Jatropha curcas L., subjected to soil water deficit.$h[electronic resource]
260 $c2021
300 $ap. 220-230 26
490 $v26
520 $aJatropha curcas has been considered as a potential oil source for biodiesel production in tropical and subtropical areas. The relationships between water deficit-induced nocturnal acidification and leaf succulence, gas exchange rates and water relations in leaves of J. curcas were accessed in a greenhouse experiment. Two genotypes, from regions of Brazil with contrasting climate (CNPAE183, from a dry and hot tropical climate and CNPAE191, from a humid subtropical climate), were maintained under full irrigation or were subjected to water deficit for 49 days followed by recovery for 7 days. Leaf relative water content decreased with water deficit from 85.4 to 77.5%, in both genotypes. Pre-dawn leaf water potential decreased from - 0.5 MPa in irrigated plants - 1.0 MPa (in CNPAE183) and to - MPa (in CNPAE191). Slow and less intense decrease of leaf gas exchange in CNPAE191 than in CNPAE183 suggests a high effective water use under water deficit in the former. Leaf nocturnal acidification increased 4.3-fold in water deficit plants of both genotypes and a positive correlation between nocturnal acidification and leaf succulence, expressed as fresh mass per dry mass, was observed. Water deficit-induced nocturnal acid accumulation and a positive correlation between nocturnal acidification and leaf succulence were thoroughly demonstrated. While such nocturnal acidification may be related to osmotic adjustment, its correlation with leaf succulence suggests a weak CAM-cycling activity in leaves of J. curcas which, along with other water-conserving mechanisms, may help to explain the widely reported drought tolerance of this species.
650 $aBioenergy
650 $aDrought tolerance
650 $aJatropha
650 $aBioenergia
650 $aEuphorbiaceae
653 $aLeaf gas exchange
700 1 $aALMEIDA, A. F. de
700 1 $aMIELKE, M. S.
700 1 $aLAVIOLA, B. G.
700 1 $aSILVA, L. D. da
773 $tPlant Physiology Reports$gv. 26, p. 220-230, 2021.
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Registro original: |
Embrapa Agroenergia (CNPAE) |
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| Registros recuperados : 93 | |
| 6. |  | ARAÚJO, J. G. S. de; SILVA, A. F.; JATOBÁ, L.; SANTOS, A. dos. Ciclo da dependência ambiental: o caso do curso médio da Bacia do Ipojuca: estudo para fortalecer o manejo agroecológico. In: CONGRESSO INTERNACIONAL INTERDISCIPLINAR EM EXTENSÃO RURAL E DESENVOLVIMENTO, 2.; REUNIÃO DA REDE-FRANCO BRASILEIRA PELO DESENVOLVIMENTO SUSTENTÁVEL NO SEMIÁRIDO DO NORDESTE, 3.; ENCONTRO NACIONAL DA AGRICULTURA FAMILIAR, 4.; SEMINÁRIO INTERTERRITORIAL DE CAPRINOVINOCULTURA, DA BAHIA, 1.; FEIRA DE EMPREENDEDORISMO DE MULHERES, 3.; JORNADA DE AGROECOLOGIA DO SERTÃO DO SÃO FRANCISCO, 1., 2019, Juazeiro. Territorialidades, mudanças climáticas, agroecossistemas e premissas para o desenvolvimento sustentável. Petrolina: Univasf, 2019.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 7. | | SEREIRA, R. C.; SILVA, J. F.; SANTOS, A. dos; RIBEIRO, L. M.; CECCON, G. Comportamento de genótipos de milho safrinha solteiro e consorciado com Brachiaria ruziziensis. In: SEMINÁRIO NACIONAL [DE] MILHO SAFRINHA, 12., 2013, Dourados. Estabilidade e produtividade: anais. Brasília, DF: Embrapa; Dourados: Embrapa Agropecuária Oeste, 2013. Editado por: Germani Concenço, Gessi Ceccon. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 8. | | CECCON, G.; SANTOS, A. dos; MAKINO, P. A.; PADILHA, N. de S.; LEITE, L. F. Épocas de semeadura de milho safrinha solteiro e consorciado com Brachiaria ruziziensis. In: SEMINÁRIO NACIONAL [DE] MILHO SAFRINHA, 12., 2013, Dourados. Estabilidade e produtividade: anais. Brasília, DF: Embrapa; Dourados: Embrapa Agropecuária Oeste, 2013. Editado por: Germani Concenço, Gessi Ceccon. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 12. | | LUIZ-NETO-NETO, A.; CECCON, G.; SILVA, J. F. da; SANTOS, A. dos; MAKINO, P. A. Produtividade da soja após modalidades de cultivo de Brachiaria spp. no outono/inverno. In: ENCONTRO NACIONAL DE PLANTIO DIRETO NA PALHA, 14., 2014, Bonito, MS. Sistema Plantio Direto: produzindo água e alimentando o mundo: resumos. Brasília, DF: Embrapa, 2014. Editores técnicos: Marie Luise Carolina Bartz, Júlio César Salton.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 14. | | BARATEIRO, J. V. G. R. P.; CARVALHO, S. M.; GAZZONI, D. L.; SANTOS, A. dos. Impacto da polinização por abelhas na produtividade da soja: um estudo de manejo integrado no Brasil. In: CONGRESSO BRASILEIRO DE SOJA, 10., 2025, Campinas, SP. Resumos... Londrina: Embrapa Soja, 2025. p. 65. Resumo 40. (Embrapa Soja. Eventos técnicos & científicos, 6). Organização da publicação: Regina Maria Villas Bôas de Campos Leite e Fernando Augusto Henning.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 15. | | SANTOS, A. dos; DOMENICO, F. C. de; PERES FILHO, O.; SOARES, R. S.; TEIXEIRA, V. A. Ocorrência de Proscopiidae em Eucalyptus spp.: análise da infestação e distribuição espacial. Pesquisa Florestal Brasileira, Colombo, v. 35, n. 81, p. 41-45, jan./mar. 2015. Nota científica.| Biblioteca(s): Embrapa Florestas. |
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| 18. | | LEITE, L. F.; OLIVEIRA, E. P. de; SANTOS, A. dos; CECCON, G. Desempenho de milho safrinha em duas épocas de semeadura e populações de plantas, em Dourados, MS. In: SEMINÁRIO NACIONAL [DE] MILHO SAFRINHA, 12., 2013, Dourados. Estabilidade e produtividade: anais. Brasília, DF: Embrapa; Dourados: Embrapa Agropecuária Oeste, 2013. Editado por: Germani Concenço, Gessi Ceccon. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 19. | | LEITE, L. F.; OLIVEIRA, E. P. de; SANTOS, A. dos; RIBEIRO, L. M.; CECCON, G. Desempenho de milho safrinha em duas épocas de semeadura e populações de plantas, em Dourados, MS. In: JORNADA DE INICIAÇÃO À PESQUISA DA EMBRAPA, 2014, Dourados. Resumos... Brasília, DF: Embrapa, 2014. 1 CD-ROM; JIPE 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| Registros recuperados : 93 | |
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