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| Registros recuperados : 9 | |
| 1. |  | QUEIROZ, M. A. de; SANTOS, W. B. dos. Reação de acessos de melancia coletados na Chapada Diamantina-BA ao cancro das hastes. Horticultura Brasileira, Brasília, v. 21, n. 2, jul. 2003. Suplemento 2. Trabalho apresentado no 43º Congresso Brasileiro de Olericultura, 2003. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 21, n. 2, p. 364, jul. 2003. Suplemento 1.| Biblioteca(s): Embrapa Hortaliças. |
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| 2. | | SANTOS, W. B. dos; MORENO, M. B.; GONCALVES, P. de S.; MATTOSO, L. H. C.; MARTINS, M. A. Desempenho da borracha natural de clones da série IAC 500. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 3., 2011, São Carlos. Anais... São Carlos, SP: Embrapa Pecuária Sudeste: Embrapa Instrumentação, 2011. p. 31. ( Embrapa Pecuária Sudeste. Documentos, 104). Editado por: Luiz Francisco Zafalon; Patricia Tholon.| Biblioteca(s): Embrapa Instrumentação. |
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| 4. | | SANTOS, D. S. dos; MAJOLO, C.; SANTOS, W. B. dos; OLIVEIRA, M. I. B. de; FARIAS, C. F. S.; BRANDÃO, F. R.; CHAGAS, E. C. Anthelmintic activity of eugenol, tannin and thymol against Neoechinorhynchus buttnerae. Archives of Veterinary Science, v. 26, n. 4, p. 117-127, 2021. Título em Português: Atividade anti-helmíntica de eugenol, tanino e timol frente à Neoechinorhynchus buttnerae.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 6. | | SILVA, R. K. S. da; FELICIANO, A. L. P.; MARANGON, L. C.; LIMA, R. B. de A.; SANTOS, W. B. dos. Estrutura e síndromes de dispersão de espécies arbóreas em um trecho de mata ciliar, Sirinhaém, Pernambuco, Brasil. Pesquisa Florestal Brasileira, Colombo, v. 32, n. 69, p. 1-11, jan./mar. 2012.| Biblioteca(s): Embrapa Florestas. |
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| 7. | | OLIVEIRA, L. S. C. de; MARANGON, L. C.; FELICIANO. A. L. P.; LIMA, A. S. de; CARDOSO, M. S. de O.; SANTOS, W. B. dos. Efeito de borda em remanescentes de floresta atlântica na bacia do rio Tapacurá, Pernambuco. Cerne, Lavras, v. 21, n. 2, p. 169-174, 2015.| Biblioteca(s): Embrapa Florestas. |
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| 8. | | SUAREZ, W. T.; PESSOA-NETO, O. D.; SANTOS, W. B. dos; FARIA, R. C.; FATIBELLO-FILHO, O.; NOGUEIRA, A. R. de A.; ALONSO, J. Desenvolvimento de sistema miniaturizado para a determinação de uréia em amostras de leite. In: JORNADA CIENTÍFICA-EMBRAPA SÃO CARLOS, 2009, São Carlos, SP. Anais... São Carlos, SP: Embrapa Pecuária Sudeste: Embrapa Instrumentação Agropecuária, 2009. p. 81.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 9. | | SANTOS, W. B. dos; MAJOLO, C.; SANTOS, D. S. dos; ROSA, M. C.; MONTEIRO, P. C.; ROCHA, M. J. S.; OLIVEIRA, M. I. B. de; CHAVES, F. C. M.; CHAGAS, E. C. Eficácia in vitro de óleos essenciais de espécies de Piperaceae no controle do acantocéfalo Neoechinorhynchus buttnerae. Revista Brasileira de Higiene e Sanidade Animal, v. 12, n. 4, p. 460-469, out.-dez. 2018.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| Registros recuperados : 9 | |
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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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