| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pecuária Sul. |
|
Data corrente: |
30/12/2020 |
|
Data da última atualização: |
16/09/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PIVETA, L. B.; ROMA-BURGOS, N.; NOLDIN, J. A.; VIANA, V. E.; OLIVEIRA, C. de; LAMEGO, F. P.; AVILA, L. A. |
|
Afiliação: |
Leonard Bonilha Piveta, UFPEL; Nilda Roma-Burgos, University of Arkansas; José Alberto Noldin, EPAGRI; Vívian Ebeling Viana, UFPEL; Claudia de Oliveira, UFPEL; FABIANE PINTO LAMEGO, CPPSUL; Luis Antonio de Avila, UFPEL. |
|
Título: |
Molecular and physiological responses of rice and weedy rice to heat and drought stress. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Agriculture, v. 11, n. 1, 9-11010009, Jan. 2021. |
|
DOI: |
https://dx.doi.org/10.3390/ agriculture |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract:Rice is the staple food for about half of the world population. Rice grain yield and qualityare affected by climatic changes. Arguably, rice cultivars genetic diversity is diminished from decadesof breeding using narrow germplasm, requiring introgressions from otherOryzaspecies, weedy orwild. Weedy rice has high genetic diversity, which is an essential resource for rice crop improvement.Here, we analyzed the phenotypic, physiological, and molecular profiles of two rice cultivars (IRGA424 and SCS119 Rubi) and five weedy rice (WR), from five different Brazilian regions, in responseto heat and drought stress. Drought and heat stress affected the phenotype and photosyntheticparameters in different ways in rice and WR genotypes. A WR from Northern Brazil yielded betterunder heat stress than the non-stressed check. Drought stress upregulatedHSF7Awhile heat stressupregulatedHSF2a.HSP74.8,HSP80.2,andHSP24.1were upregulated in both conditions. Basedon all evaluated traits, we hypothesized that in drought conditions increasingHSFA7expressionis related to tiller number and that increase WUE (water use efficiency) andHSFA2aexpressionare associated with yield. In heat conditions, Gs(stomatal conductance) and Es increases may berelated to plant height; tiller number is inversely associated withHSPsexpression, and chlorophyllcontent and Ci(intercellular CO2concentration) may be related to yield. Based on morphology,physiology, and gene regulation in heat and drought stress, we can discriminate genotypes thatperform well under these stress conditions and utilize such genotypes as a source of genetic diversityfor rice breeding.Keywords:genetic diversity; photosynthesis; heat shock protein MenosAbstract:Rice is the staple food for about half of the world population. Rice grain yield and qualityare affected by climatic changes. Arguably, rice cultivars genetic diversity is diminished from decadesof breeding using narrow germplasm, requiring introgressions from otherOryzaspecies, weedy orwild. Weedy rice has high genetic diversity, which is an essential resource for rice crop improvement.Here, we analyzed the phenotypic, physiological, and molecular profiles of two rice cultivars (IRGA424 and SCS119 Rubi) and five weedy rice (WR), from five different Brazilian regions, in responseto heat and drought stress. Drought and heat stress affected the phenotype and photosyntheticparameters in different ways in rice and WR genotypes. A WR from Northern Brazil yielded betterunder heat stress than the non-stressed check. Drought stress upregulatedHSF7Awhile heat stressupregulatedHSF2a.HSP74.8,HSP80.2,andHSP24.1were upregulated in both conditions. Basedon all evaluated traits, we hypothesized that in drought conditions increasingHSFA7expressionis related to tiller number and that increase WUE (water use efficiency) andHSFA2aexpressionare associated with yield. In heat conditions, Gs(stomatal conductance) and Es increases may berelated to plant height; tiller number is inversely associated withHSPsexpression, and chlorophyllcontent and Ci(intercellular CO2concentration) may be related to yield. Based on morphology,physiology, and gene regulation in heat and drought stress, we can... Mostrar Tudo |
|
Palavras-Chave: |
Diversidade genética. |
|
Thesagro: |
Arroz; Fotossíntese; Resposta da Planta. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02460naa a2200253 a 4500
001 2128885
005 2021-09-16
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://dx.doi.org/10.3390/ agriculture$2DOI
100 1 $aPIVETA, L. B.
245 $aMolecular and physiological responses of rice and weedy rice to heat and drought stress.$h[electronic resource]
260 $c2021
520 $aAbstract:Rice is the staple food for about half of the world population. Rice grain yield and qualityare affected by climatic changes. Arguably, rice cultivars genetic diversity is diminished from decadesof breeding using narrow germplasm, requiring introgressions from otherOryzaspecies, weedy orwild. Weedy rice has high genetic diversity, which is an essential resource for rice crop improvement.Here, we analyzed the phenotypic, physiological, and molecular profiles of two rice cultivars (IRGA424 and SCS119 Rubi) and five weedy rice (WR), from five different Brazilian regions, in responseto heat and drought stress. Drought and heat stress affected the phenotype and photosyntheticparameters in different ways in rice and WR genotypes. A WR from Northern Brazil yielded betterunder heat stress than the non-stressed check. Drought stress upregulatedHSF7Awhile heat stressupregulatedHSF2a.HSP74.8,HSP80.2,andHSP24.1were upregulated in both conditions. Basedon all evaluated traits, we hypothesized that in drought conditions increasingHSFA7expressionis related to tiller number and that increase WUE (water use efficiency) andHSFA2aexpressionare associated with yield. In heat conditions, Gs(stomatal conductance) and Es increases may berelated to plant height; tiller number is inversely associated withHSPsexpression, and chlorophyllcontent and Ci(intercellular CO2concentration) may be related to yield. Based on morphology,physiology, and gene regulation in heat and drought stress, we can discriminate genotypes thatperform well under these stress conditions and utilize such genotypes as a source of genetic diversityfor rice breeding.Keywords:genetic diversity; photosynthesis; heat shock protein
650 $aArroz
650 $aFotossíntese
650 $aResposta da Planta
653 $aDiversidade genética
700 1 $aROMA-BURGOS, N.
700 1 $aNOLDIN, J. A.
700 1 $aVIANA, V. E.
700 1 $aOLIVEIRA, C. de
700 1 $aLAMEGO, F. P.
700 1 $aAVILA, L. A.
773 $tAgriculture$gv. 11, n. 1, 9-11010009, Jan. 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
13/04/2004 |
|
Data da última atualização: |
21/02/2020 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
MONTEIRO, S. P.; SILVA, I. V. T.; OLIVEIRA, M. G.; LIMA, P. C. F. |
|
Afiliação: |
PAULO CESAR FERNANDES LIMA, CPATSA. |
|
Título: |
Influência do substrato na germinação de sementes de umbu (Spondias tuberosa Arruda - Anacardiaceae). |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
In: REUNIÃO NORDESTINA DE BOTÂNICA, 27., 2004, Petrolina. Anais... Petrolina: SBB; Embrapa Semi-Árido; UNEB, 2004. |
|
Descrição Física: |
1 CD-ROM. |
|
Idioma: |
Português |
|
Conteúdo: |
Com o objetivo de analisar o melhor substrato para a germinação de sementes de umbu, foi desenvolvido um experimento no viveiro da Embrapa Semi-Arido, Petrolina-PE, com sementes coletadas em agosto de 2002, um experimento utilizando areia, camada superficial do solo, palha de arroz, serragem, vermiculita e carvão como substrato. Analisou-se o percentual de germinação (G) e o índice de velocidade de germinação (IVG). |
|
Palavras-Chave: |
Substrato. |
|
Thesagro: |
Germinação; Semente; Spondias Tuberosa; Umbu. |
|
Thesaurus NAL: |
Germination; Seeds. |
|
Categoria do assunto: |
A Sistemas de Cultivo |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA/28496/1/OPB414.pdf
|
|
Marc: |
LEADER 01157nam a2200241 a 4500
001 1153023
005 2020-02-21
008 2004 bl uuuu u00u1 u #d
100 1 $aMONTEIRO, S. P.
245 $aInfluência do substrato na germinação de sementes de umbu (Spondias tuberosa Arruda - Anacardiaceae).
260 $aIn: REUNIÃO NORDESTINA DE BOTÂNICA, 27., 2004, Petrolina. Anais... Petrolina: SBB; Embrapa Semi-Árido; UNEB$c2004
300 $c1 CD-ROM.
520 $aCom o objetivo de analisar o melhor substrato para a germinação de sementes de umbu, foi desenvolvido um experimento no viveiro da Embrapa Semi-Arido, Petrolina-PE, com sementes coletadas em agosto de 2002, um experimento utilizando areia, camada superficial do solo, palha de arroz, serragem, vermiculita e carvão como substrato. Analisou-se o percentual de germinação (G) e o índice de velocidade de germinação (IVG).
650 $aGermination
650 $aSeeds
650 $aGerminação
650 $aSemente
650 $aSpondias Tuberosa
650 $aUmbu
653 $aSubstrato
700 1 $aSILVA, I. V. T.
700 1 $aOLIVEIRA, M. G.
700 1 $aLIMA, P. C. F.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
