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| Registros recuperados : 318 | |
| 81. |  | CHAVES, A. M.; AZEVEDO, I. N.; TENENTE, R. C. V.; CARRIJO, O. A. Influência de diferentes níveis hídricos no desenvolvimento de clones de banana (Musa spp.) e interação de nematóides na avaliação de resistência a Meloidogyne javanica. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 6., 2001, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2001. p. 110.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 82. | | CHAVES, A. R. de M.; MATTA, F. M. da; CELIN, E. F.; MARTINS, S. C. V. Relação da morte de ramos com a razão área foliar por fruto, crescimento vegetativo e produção em diferentes posições da copa do cafeeiro. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 8., 2013, Salvador. Sustentabilidade e inclusão Social. Brasília, DF: Embrapa Café, 2013.| Biblioteca(s): Embrapa Semiárido. |
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| 83. | | LIMA, L. S.; CHAVES, A. K. L.; SALDANHA, A. R.; TONUCCI, R. G.; GUEDES, F. L. Qualidade fermentativa e composição química da silagem de cultivares de Milheto no semiárido cearence. In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 12., 2017, Juazeiro, BA. Construindo pontes entre o ensino, a pesquisa e a extensão: anais. Petrolina: Univasf: Embrapa Semiárido: Instituto Federal de Educação, Ciência e Tecnologia, Sertão de Pernambuco, 2017. 1 CD-ROM. p. 2462-2464.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 87. | | COLARICCIO, A.; EIRAS, M.; CHAVES, A. L. R.; HARAKAVA, R.; CHAGAS, C. M. Tomato chlorotic spot virus in hydroponically-grown lettuce in São Paulo State, Brazil. Fitopatologia Brasileira, Brasília, v. 29, n. 3, p. 307-311, maio/jun. 2004.| Biblioteca(s): Embrapa Hortaliças. |
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| 88. | | MORGANTE, C. V.; CHAVES, A. R. de M.; MOTA, A. P. Z.; AIDAR, S. de T. Transcriptome analysis of the vegetative desiccation tolerance plant Tripogonella spicata(Nees) P.M.Peterson & Romasch. In: BRAZILIAN BIOTECHNOLOGY CONGRESS, 7.; BIOTECHNOLOGY IBERO-AMERICAN CONGRESS, 2., 2018, Brasília, DF. Proceedings... Brasília, DF: SBBiotec, 2018.| Biblioteca(s): Embrapa Semiárido. |
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| 90. | | CHAVES, A. C. S. D.; TEIXEIRA, N. S.; HIDALGO CHÁVEZ, D. W.; ROSENTHAL, A.; DELIZA, R. Vegan ice cream made with fava bean protein: melting rate and hardness. In: CONFERÊNCIA INTERNACIONAL DE PROTEÍNAS E COLOIDES ALIMENTARES,9., 2023, Rio de Janeiro. Anais... Campinas, Galoá, 2023. Poster 157594. Eixo temático: novos processos e ingredientes. CIPCA.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 92. | | SILVA, R. S. da; FREITAS, S. P.; NOGUEIRA, R. I.; CHAVES, A. C. S. D.; MELLO, L. Aproveitamento do albúmen sólido do coco verde como ingrediente para produção de sorbet. In: ONE, G. M. da C. (org.). Ciências naturais agrárias e exatas: pesquisa, tecnologia e aplicabilidade. João Pessoa, PB: IMEA, 2023. cap. 6, p. 117-133.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 93. | | SANTOS, L. M.; SOUZA, D. R. M. de; SILVA, A. O. da; SILVA, D. J.; CHAVES, A. R. de M. Aspectos ecofisiológicos em videira fertirrigada com diferentes concentrações de nitrogênio e potássio. In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA SEMIÁRIDO, 10., 2015, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2015. p. 81-86. 1 CD-ROM. (Embrapa Semiárido. Documentos, 264).| Biblioteca(s): Embrapa Semiárido. |
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| 99. | | BARBOSA, B. D. R.; SANTOS, L. M.; TEIXEIRA, R. P.; CHAVES, A. R. de M.; BASSOI, L. H. Avaliação da dinâmica da água no solo, evapotranspiração da cultura e estado hídrico da videira de vinho. In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA SEMIÁRIDO, 9., 2014, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2014. p.117-122 (Embrapa Semiárido. Documentos, 261).| Biblioteca(s): Embrapa Semiárido. |
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| 100. | | CHAVES, A. L.; ROMBALDI, C.; ARAUJO, P. J. de; BALAGUE, C.; PECH, J.-C.; AYUB, R. A. Ciclo de maturacao e producao de etileno de tomates (Lycopersicon esculentum, Mill.) transgenicos. Ciencia e Tecnologia de Alimentos, Campinas, v. 18, n. 1, p. 116-120, jan./abr. 1998.| Biblioteca(s): Embrapa Hortaliças. |
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| Registros recuperados : 318 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
02/01/2019 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
CHAVES, A. L. A.; CHIAVEGATTO, R. B.; GAVILANES, M. L.; BENITES, F. R. G.; TECHIO, V. H. |
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Afiliação: |
FLAVIO RODRIGO GANDOLFI BENITES, CNPGL. |
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Título: |
Effect of polyploidy on the leaf epidermis structure of Cynodon dactylon (L.) Pers. (Poaceae). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Biologia, v. 73, n. 10, p. 1007-1013, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Cynodon dactylon has different ploidy levels. The ?gigas effect? in morphoanatomic traits caused by the increase in the genetic material is poorly studied in the species. Thus, the present research aimed at carrying out a quantitative and descriptive study of the leaf epidermis structure in PI291169?04 (2n = 2× = 18); PI477004?26 (2n = 3× = 27); PI291721?22 (2n = 4× = 36); PI289750?10 (2n = 5× = 45) accessions, in order to investigate the consequences of the polyploidy. Adult leaves were fixed in FAA and the paradermal sections obtained through the scraping technique were stained in 5% safranin. The measurements of the stomata characteristics (polar diameters ? PD, equatorial diameters ? QD, stomatal density ? SD, stomatal functionality ? SF, and stomatal index ? SI) were taken by means of the software ImageJ. For analysis in scanning electron microscopy, leaf fragments were fixed in Karnovsky, dehydrated in an acetone series, subjected to a critical point and covered with gold. Stomata were classified as paracytic, dumbbell-shaped and partially covered by papillae. Tector trichomes were classified as uniseriate with pointed tips. In general, as ploidy level increased, there was an increase in stomata dimension and a decrease in SD. Diploid and triploid accessions were easily differentiated in relation to PD and QD, which makes it an indirect method for determining the variation in ploidy level. The variables SD and SI were not efficient to discriminate the accessions. Leaf epidermis has characteristics that emphasize the effect of polyploidization process and its analysis may be used to screening of genotypes in breeding programs. MenosAbstract Cynodon dactylon has different ploidy levels. The ?gigas effect? in morphoanatomic traits caused by the increase in the genetic material is poorly studied in the species. Thus, the present research aimed at carrying out a quantitative and descriptive study of the leaf epidermis structure in PI291169?04 (2n = 2× = 18); PI477004?26 (2n = 3× = 27); PI291721?22 (2n = 4× = 36); PI289750?10 (2n = 5× = 45) accessions, in order to investigate the consequences of the polyploidy. Adult leaves were fixed in FAA and the paradermal sections obtained through the scraping technique were stained in 5% safranin. The measurements of the stomata characteristics (polar diameters ? PD, equatorial diameters ? QD, stomatal density ? SD, stomatal functionality ? SF, and stomatal index ? SI) were taken by means of the software ImageJ. For analysis in scanning electron microscopy, leaf fragments were fixed in Karnovsky, dehydrated in an acetone series, subjected to a critical point and covered with gold. Stomata were classified as paracytic, dumbbell-shaped and partially covered by papillae. Tector trichomes were classified as uniseriate with pointed tips. In general, as ploidy level increased, there was an increase in stomata dimension and a decrease in SD. Diploid and triploid accessions were easily differentiated in relation to PD and QD, which makes it an indirect method for determining the va... Mostrar Tudo |
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Palavras-Chave: |
Gigas effect; Leaf anatomy; Ploidy level. |
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Thesaurus NAL: |
Forage grasses; Stomata. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02429naa a2200229 a 4500
001 2102725
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
100 1 $aCHAVES, A. L. A.
245 $aEffect of polyploidy on the leaf epidermis structure of Cynodon dactylon (L.) Pers. (Poaceae).$h[electronic resource]
260 $c2018
520 $aAbstract Cynodon dactylon has different ploidy levels. The ?gigas effect? in morphoanatomic traits caused by the increase in the genetic material is poorly studied in the species. Thus, the present research aimed at carrying out a quantitative and descriptive study of the leaf epidermis structure in PI291169?04 (2n = 2× = 18); PI477004?26 (2n = 3× = 27); PI291721?22 (2n = 4× = 36); PI289750?10 (2n = 5× = 45) accessions, in order to investigate the consequences of the polyploidy. Adult leaves were fixed in FAA and the paradermal sections obtained through the scraping technique were stained in 5% safranin. The measurements of the stomata characteristics (polar diameters ? PD, equatorial diameters ? QD, stomatal density ? SD, stomatal functionality ? SF, and stomatal index ? SI) were taken by means of the software ImageJ. For analysis in scanning electron microscopy, leaf fragments were fixed in Karnovsky, dehydrated in an acetone series, subjected to a critical point and covered with gold. Stomata were classified as paracytic, dumbbell-shaped and partially covered by papillae. Tector trichomes were classified as uniseriate with pointed tips. In general, as ploidy level increased, there was an increase in stomata dimension and a decrease in SD. Diploid and triploid accessions were easily differentiated in relation to PD and QD, which makes it an indirect method for determining the variation in ploidy level. The variables SD and SI were not efficient to discriminate the accessions. Leaf epidermis has characteristics that emphasize the effect of polyploidization process and its analysis may be used to screening of genotypes in breeding programs.
650 $aForage grasses
650 $aStomata
653 $aGigas effect
653 $aLeaf anatomy
653 $aPloidy level
700 1 $aCHIAVEGATTO, R. B.
700 1 $aGAVILANES, M. L.
700 1 $aBENITES, F. R. G.
700 1 $aTECHIO, V. H.
773 $tBiologia$gv. 73, n. 10, p. 1007-1013, 2018.
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