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 | Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
24/05/2016 |
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Data da última atualização: |
24/05/2016 |
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Autoria: |
RODRIGUES, S. P.; CUNHA, M. da.; VENTURA, J. A.; FERNANDES, P. M. B. |
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Afiliação: |
UFES; UENF; Jose Aires Ventura, Incaper; UFES. |
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Título: |
Effcts of the Papaya meleira virus on papaya latex structure and composition. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
BIOTIC AND BIOTIC STRESS, v. 28, n. 5, p. 861-871, 2009. |
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DOI: |
10.1007/s00299-009-0673-7 |
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Idioma: |
Português |
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Conteúdo: |
Spontaneous latex exudation is the main symptom of papaya sticky (meleira) disease caused by the Papaya meleira virus (PMeV), a double-stranded RNA (dsRNA) virus. This paper describes different effects of PMeV on papaya latex. Latex samples were subjected to different histochemical tests to evaluate their chemical composition. Additionally, the integrity of the latex particles was assessed by transmission and scanning electron microscopy analysis. Biochemical and micro- and macro-element measurements were performed. PMeV dsRNA extraction was performed to evaluate the interaction of the virus with the latex particles. Sticky diseased latex was positive for alkaloid biosynthesis and showed an accumulation of calcium oxalate crystals. PMeV also increased H(2)O(2) synthesis within sticky diseased laticifers. The protein, sugar and water levels were altered, probably due to chemical changes. The morphology of the latex particles was further altered; PMeV particles seemed to be bound to the latex particles. The alkaloid and H(2)O(2) biosynthesis in the papaya laticifers indicate a papaya defense response against PMeV. However, such efforts failed, as the virus affected the plant latex. The effects described here suggest some advantages of the infection process, including facilitating the movement of the virus within the papaya plant. |
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Palavras-Chave: |
Mamão; Papaya. |
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Thesaurus NAL: |
Carica papaya; Latex; Laticifers; Meleira; Papaya meleira virus; Papaya sticky disease. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02100naa a2200265 a 4500
001 1010909
005 2016-05-24
008 2009 bl uuuu u00u1 u #d
024 7 $a10.1007/s00299-009-0673-7$2DOI
100 1 $aRODRIGUES, S. P.
245 $aEffcts of the Papaya meleira virus on papaya latex structure and composition.$h[electronic resource]
260 $c2009
520 $aSpontaneous latex exudation is the main symptom of papaya sticky (meleira) disease caused by the Papaya meleira virus (PMeV), a double-stranded RNA (dsRNA) virus. This paper describes different effects of PMeV on papaya latex. Latex samples were subjected to different histochemical tests to evaluate their chemical composition. Additionally, the integrity of the latex particles was assessed by transmission and scanning electron microscopy analysis. Biochemical and micro- and macro-element measurements were performed. PMeV dsRNA extraction was performed to evaluate the interaction of the virus with the latex particles. Sticky diseased latex was positive for alkaloid biosynthesis and showed an accumulation of calcium oxalate crystals. PMeV also increased H(2)O(2) synthesis within sticky diseased laticifers. The protein, sugar and water levels were altered, probably due to chemical changes. The morphology of the latex particles was further altered; PMeV particles seemed to be bound to the latex particles. The alkaloid and H(2)O(2) biosynthesis in the papaya laticifers indicate a papaya defense response against PMeV. However, such efforts failed, as the virus affected the plant latex. The effects described here suggest some advantages of the infection process, including facilitating the movement of the virus within the papaya plant.
650 $aCarica papaya
650 $aLatex
650 $aLaticifers
650 $aMeleira
650 $aPapaya meleira virus
650 $aPapaya sticky disease
653 $aMamão
653 $aPapaya
700 1 $aCUNHA, M. da.
700 1 $aVENTURA, J. A.
700 1 $aFERNANDES, P. M. B.
773 $tBIOTIC AND BIOTIC STRESS$gv. 28, n. 5, p. 861-871, 2009.
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Biblioteca Rui Tendinha (BRT) |
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| Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
26/12/2023 |
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Data da última atualização: |
14/08/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SENRA, J. F. de B.; SILVA, J. A. da; FERREIRA, A.; ESPOSTI, M. D.; FERRÃO, M. A. G.; FASSARELLA, K. M.; SILVA, U. R.; MILHEIROS, I. S.; SILVA, F. G. da |
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Afiliação: |
João Felipe de Brites Senra, Incaper; Josimar Aleixo da Silva; Adésio Ferreira; Marlon Dutra Degli Esposti, Incaper; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Kamila Machado Fassarella, Incaper; Uliana Ribeiro Silva; Idalina Sturião Milheiros; Fernanda Gomes da Silva. |
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Título: |
Initial performance and genetic diversity of coffee trees cultivated under contrasting altitude conditions. |
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Complemento do título: |
Desempenho inicial e diversidade gen�©tica de cafeeiros cultivados em condi�§�µes contrastantes de altitude |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Scientia Agricola, v. 80, p. e20220163, 2023. |
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DOI: |
http://doi.org/10.1590/1678-992X-2022-0163 |
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Idioma: |
Inglês |
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Conteúdo: |
This work evaluated the initial performance and genetic diversity of Coffea canephora genotypes cultivated in environments at contrasting altitudes. Fourteen morphophysiological traits and seven descriptors of the genus Coffea spp. of coffee trees cultivated at altitudes of 140 m and 700 m were evaluated. The design used was Federer?s augmented block in a 2 Ã?â?? 112 factorial scheme with six blocks. The first factor was the two environments, and the second was the 112 genotypes, with eight common treatments, being five conilon coffee clones and three arabica coffee cultivars. The data were analyzed by the method of REML/BLUP and genetic correlation method. Genetic diversity was evaluated by estimating the distance matrix, applying the Gower methodology followed by the clustering method by Tocher and UPGMA. The phenotypic means were higher in the environment at an altitude of 700 m, except for plant height, number of leaves, and canopy height (CH). Genotypic effects were significant for most traits except for leaf width, CH, unit leaf area, and total leaf area. A wide genetic diversity was verified, with distances varying from 0.037 to 0.593 for the pairs of genotypes 26 Ã?â?? 93 and T7 Ã?â?? 76, respectively. Most of the traits studied showed high genotypic correlation with the environment and expressive genetic correlation between the evaluated traits thereby demonstrating the possibility of indirect selection. There is an adaptation of conilon coffee genotypes to high altitudes and the possibility of developing a specific cultivar for the southern state of EspÃ?ÂÂrito Santo.
Este trabalho avaliou o desempenho inicial e a diversidade genÃ?©tica de genÃ?³tipos de Coffea canephora cultivados em ambientes em altitudes contrastantes. Quatorze caracterÃ?ÂÂsticas morfofisiolÃ?³gicas e sete descritores do gÃ?ªnero Coffea spp. foram avaliados cafeeiros cultivados nas altitudes de 140 m e 700 m. O delineamento utilizado foi o bloco aumentado de Federer em esquema fatorial 2 Ã?â?? 112 com seis blocos. O primeiro fator foram os dois ambientes e o segundo foram os 112 genÃ?³tipos, com oito tratamentos comuns, sendo cinco clones de cafÃ?© conilon e trÃ?ªs cultivares de cafÃ?© arÃ?¡bica. Os dados foram analisados pelo mÃ?©todo REML/BLUP e mÃ?©todo de correlaÃ?§Ã?£o genÃ?©tica. A diversidade genÃ?©tica foi avaliada estimando a matriz de distÃ?¢ncia, aplicando a metodologia de Gower seguida do mÃ?©todo de agrupamento de Tocher e UPGMA. As mÃ?©dias fenotÃ?ÂÂpicas foram maiores no ambiente a 700 m de altitude, exceto para altura de planta, nÃ?ºmero de folhas e altura de copa (CH). Os efeitos genotÃ?ÂÂpicos foram significativos para a maioria das caracterÃ?ÂÂsticas, exceto para largura foliar, CH, Ã?¡rea foliar unitÃ?¡ria e Ã?¡rea foliar total. Foi verificada ampla diversidade genÃ?©tica, com distÃ?¢ncias variando de 0,037 a 0,593 para os pares dos genÃ?³tipos 26 Ã?â?? 93 e T7 Ã?â?? 76, respectivamente. A maioria das caracterÃ?ÂÂsticas estudadas apresentou alta correlaÃ?§Ã?£o genotÃ?ÂÂpica com o ambiente e expressiva correlaÃ?§Ã?£o genÃ?©tica entre as caracterÃ?ÂÂsticas avaliadas demonstrando a possibilidade de seleÃ?§Ã?£o indireta. HÃ?¡ adaptaÃ?§Ã?£o dos genÃ?³tipos de cafÃ?© conilon Ã? s altitudes elevadas e possibilidade de desenvolvimento de uma cultivar especÃ?ÂÂfica para o sul do estado do EspÃ?ÂÂrito Santo. MenosThis work evaluated the initial performance and genetic diversity of Coffea canephora genotypes cultivated in environments at contrasting altitudes. Fourteen morphophysiological traits and seven descriptors of the genus Coffea spp. of coffee trees cultivated at altitudes of 140 m and 700 m were evaluated. The design used was Federer?s augmented block in a 2 Ã?â?? 112 factorial scheme with six blocks. The first factor was the two environments, and the second was the 112 genotypes, with eight common treatments, being five conilon coffee clones and three arabica coffee cultivars. The data were analyzed by the method of REML/BLUP and genetic correlation method. Genetic diversity was evaluated by estimating the distance matrix, applying the Gower methodology followed by the clustering method by Tocher and UPGMA. The phenotypic means were higher in the environment at an altitude of 700 m, except for plant height, number of leaves, and canopy height (CH). Genotypic effects were significant for most traits except for leaf width, CH, unit leaf area, and total leaf area. A wide genetic diversity was verified, with distances varying from 0.037 to 0.593 for the pairs of genotypes 26 Ã?â?? 93 and T7 Ã?â?? 76, respectively. Most of the traits studied showed high genotypic correlation with the environment and expressive genetic correlation between the evaluated traits thereby demonstrating the possibility of indirect selection. There is an adaptation of conilon coffee genotypes to hi... Mostrar Tudo |
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Palavras-Chave: |
Deviance; Genetic variability; Ordering. |
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Thesagro: |
Coffea Canephora. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 04765naa a2200277 a 4500
001 1025179
005 2024-08-14
008 2023 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1590/1678-992X-2022-0163$2DOI
100 1 $aSENRA, J. F. de B.
245 $aInitial performance and genetic diversity of coffee trees cultivated under contrasting altitude conditions.$h[electronic resource]
260 $c2023
520 $aThis work evaluated the initial performance and genetic diversity of Coffea canephora genotypes cultivated in environments at contrasting altitudes. Fourteen morphophysiological traits and seven descriptors of the genus Coffea spp. of coffee trees cultivated at altitudes of 140 m and 700 m were evaluated. The design used was Federer?s augmented block in a 2 Ã?â?? 112 factorial scheme with six blocks. The first factor was the two environments, and the second was the 112 genotypes, with eight common treatments, being five conilon coffee clones and three arabica coffee cultivars. The data were analyzed by the method of REML/BLUP and genetic correlation method. Genetic diversity was evaluated by estimating the distance matrix, applying the Gower methodology followed by the clustering method by Tocher and UPGMA. The phenotypic means were higher in the environment at an altitude of 700 m, except for plant height, number of leaves, and canopy height (CH). Genotypic effects were significant for most traits except for leaf width, CH, unit leaf area, and total leaf area. A wide genetic diversity was verified, with distances varying from 0.037 to 0.593 for the pairs of genotypes 26 Ã?â?? 93 and T7 Ã?â?? 76, respectively. Most of the traits studied showed high genotypic correlation with the environment and expressive genetic correlation between the evaluated traits thereby demonstrating the possibility of indirect selection. There is an adaptation of conilon coffee genotypes to high altitudes and the possibility of developing a specific cultivar for the southern state of EspÃ?ÂÂrito Santo. Este trabalho avaliou o desempenho inicial e a diversidade genÃ?©tica de genÃ?³tipos de Coffea canephora cultivados em ambientes em altitudes contrastantes. Quatorze caracterÃ?ÂÂsticas morfofisiolÃ?³gicas e sete descritores do gÃ?ªnero Coffea spp. foram avaliados cafeeiros cultivados nas altitudes de 140 m e 700 m. O delineamento utilizado foi o bloco aumentado de Federer em esquema fatorial 2 Ã?â?? 112 com seis blocos. O primeiro fator foram os dois ambientes e o segundo foram os 112 genÃ?³tipos, com oito tratamentos comuns, sendo cinco clones de cafÃ?© conilon e trÃ?ªs cultivares de cafÃ?© arÃ?¡bica. Os dados foram analisados pelo mÃ?©todo REML/BLUP e mÃ?©todo de correlaÃ?§Ã?£o genÃ?©tica. A diversidade genÃ?©tica foi avaliada estimando a matriz de distÃ?¢ncia, aplicando a metodologia de Gower seguida do mÃ?©todo de agrupamento de Tocher e UPGMA. As mÃ?©dias fenotÃ?ÂÂpicas foram maiores no ambiente a 700 m de altitude, exceto para altura de planta, nÃ?ºmero de folhas e altura de copa (CH). Os efeitos genotÃ?ÂÂpicos foram significativos para a maioria das caracterÃ?ÂÂsticas, exceto para largura foliar, CH, Ã?¡rea foliar unitÃ?¡ria e Ã?¡rea foliar total. Foi verificada ampla diversidade genÃ?©tica, com distÃ?¢ncias variando de 0,037 a 0,593 para os pares dos genÃ?³tipos 26 Ã?â?? 93 e T7 Ã?â?? 76, respectivamente. A maioria das caracterÃ?ÂÂsticas estudadas apresentou alta correlaÃ?§Ã?£o genotÃ?ÂÂpica com o ambiente e expressiva correlaÃ?§Ã?£o genÃ?©tica entre as caracterÃ?ÂÂsticas avaliadas demonstrando a possibilidade de seleÃ?§Ã?£o indireta. HÃ?¡ adaptaÃ?§Ã?£o dos genÃ?³tipos de cafÃ?© conilon Ã? s altitudes elevadas e possibilidade de desenvolvimento de uma cultivar especÃ?ÂÂfica para o sul do estado do EspÃ?ÂÂrito Santo.
650 $aCoffea Canephora
653 $aDeviance
653 $aGenetic variability
653 $aOrdering
700 1 $aSILVA, J. A. da
700 1 $aFERREIRA, A.
700 1 $aESPOSTI, M. D.
700 1 $aFERRÃO, M. A. G.
700 1 $aFASSARELLA, K. M.
700 1 $aSILVA, U. R.
700 1 $aMILHEIROS, I. S.
700 1 $aSILVA, F. G. da
773 $tScientia Agricola$gv. 80, p. e20220163, 2023.
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