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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
30/12/2020 |
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Data da última atualização: |
16/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PIVETA, L. B.; ROMA-BURGOS, N.; NOLDIN, J. A.; VIANA, V. E.; OLIVEIRA, C. de; LAMEGO, F. P.; AVILA, L. A. |
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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. |
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Título: |
Molecular and physiological responses of rice and weedy rice to heat and drought stress. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agriculture, v. 11, n. 1, 9-11010009, Jan. 2021. |
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DOI: |
https://dx.doi.org/10.3390/ agriculture |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Diversidade genética. |
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Thesagro: |
Arroz; Fotossíntese; Resposta da Planta. |
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Categoria do assunto: |
-- |
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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.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
15/07/2013 |
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Data da última atualização: |
16/07/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
VIANA, E. de S.; OLIVEIRA, L. A. de; SOUSA, M. R.; ANDRADE, M. V. S.; FONSECA, M. D.; SILVEIRA, S. M.; AMORIM, E. P. |
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Afiliação: |
ELISETH DE SOUZA VIANA, CNPMF; LUCIANA ALVES DE OLIVEIRA, CNPMF; MABEL RIBEIRO SOUSA, CNPMF; M. V. S. ANDRADE, UFRB; M. D. FONSECA, FAMAM; S. M. SILVEIRA, FAMAM; EDSON PERITO AMORIM, CNPMF. |
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Título: |
Physico-chemical evaluation of fruit of improved banana cultivars in brazil by multivariate analysis. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Acta Horticulturae, n. 986, p. 301-308, April, 2013. |
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Páginas: |
8p. |
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ISSN: |
0567-7572 |
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Idioma: |
Inglês |
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Notas: |
Trabalho apresentado no ISHS - ProMusa Symposium on Bananas and Plantains: Towards Sustainable Global Production and Improved Uses. Eds.: I. Van den Bergh et al. |
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Conteúdo: |
The aim of this study was to assess physico-chemical fruit characteristics of 15 disease-resistant banana hybrids being evaluated by Embrapa and commercial cultivars ‘Grand Naine’ (AAA), ‘Pacovan’ (AAB) and ‘Prata Anã’ (AAB). Physical characterization included chroma, hue angle, yield, number of hands, number of fruits, bunch weight, pedicel length, pedicel diameter, peduncle weight, fruit length, fruit diameter, skin thickness, fruit length of the penultimate hand and fruit diameter of the penultimate hand. Chemical characterization included total carotenoids, reducing sugars, total sugar, titrable acidity, soluble solids, ash, moisture, protein and starch. The data were subjected to cluster analysis using the Unweighted Pair-Group Average (UPGA) method and Principal Component Analysis (PCA) from the correlation matrix. The cluster analysis showed the formation of three distinct groups. The first was formed by cultivars ‘Ambrosia’, ‘Bucaneiro’, ‘Calipso’, ‘FHIA-02’, ‘FHIA-18’, ‘BRS Maravilha’, ‘Grand Naine’ and ‘BRS Caipira’; the second was formed by ‘BRS Garantida’, ‘BRS Preciosa’, ‘BRS Japira’, ‘BRS Pacovan Ken’, ‘PV 79-34’, ‘Prata Anã’, ‘Pacovan’, ‘BRS Tropical’ and ‘BRS Platina’; and the third group was formed by ‘Thap Maeo’. The results were confirmed by PCA, where the first two components explained 47% of data variation |
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Palavras-Chave: |
Caracterização de frutos; Musa spp. |
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Thesagro: |
Banana. |
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Thesaurus NAL: |
Cluster analysis; Disease resistance; Fruit quality. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02417naa a2200301 a 4500
001 1962162
005 2013-07-16
008 2013 bl uuuu u00u1 u #d
022 $a0567-7572
100 1 $aVIANA, E. de S.
245 $aPhysico-chemical evaluation of fruit of improved banana cultivars in brazil by multivariate analysis.
260 $c2013
300 $a8p.
500 $aTrabalho apresentado no ISHS - ProMusa Symposium on Bananas and Plantains: Towards Sustainable Global Production and Improved Uses. Eds.: I. Van den Bergh et al.
520 $aThe aim of this study was to assess physico-chemical fruit characteristics of 15 disease-resistant banana hybrids being evaluated by Embrapa and commercial cultivars ‘Grand Naine’ (AAA), ‘Pacovan’ (AAB) and ‘Prata Anã’ (AAB). Physical characterization included chroma, hue angle, yield, number of hands, number of fruits, bunch weight, pedicel length, pedicel diameter, peduncle weight, fruit length, fruit diameter, skin thickness, fruit length of the penultimate hand and fruit diameter of the penultimate hand. Chemical characterization included total carotenoids, reducing sugars, total sugar, titrable acidity, soluble solids, ash, moisture, protein and starch. The data were subjected to cluster analysis using the Unweighted Pair-Group Average (UPGA) method and Principal Component Analysis (PCA) from the correlation matrix. The cluster analysis showed the formation of three distinct groups. The first was formed by cultivars ‘Ambrosia’, ‘Bucaneiro’, ‘Calipso’, ‘FHIA-02’, ‘FHIA-18’, ‘BRS Maravilha’, ‘Grand Naine’ and ‘BRS Caipira’; the second was formed by ‘BRS Garantida’, ‘BRS Preciosa’, ‘BRS Japira’, ‘BRS Pacovan Ken’, ‘PV 79-34’, ‘Prata Anã’, ‘Pacovan’, ‘BRS Tropical’ and ‘BRS Platina’; and the third group was formed by ‘Thap Maeo’. The results were confirmed by PCA, where the first two components explained 47% of data variation
650 $aCluster analysis
650 $aDisease resistance
650 $aFruit quality
650 $aBanana
653 $aCaracterização de frutos
653 $aMusa spp
700 1 $aOLIVEIRA, L. A. de
700 1 $aSOUSA, M. R.
700 1 $aANDRADE, M. V. S.
700 1 $aFONSECA, M. D.
700 1 $aSILVEIRA, S. M.
700 1 $aAMORIM, E. P.
773 $tActa Horticulturae$gn. 986, p. 301-308, April, 2013.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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