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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. |
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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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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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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 12 | |
| 2. |  | SILVA, J. P. S.; DRUMOND, P. M. A coleção entomológica da Embrapa Acre. In: SEMINÁRIO ANUAL DE COOPERAÇÃO UFAC/UF, 8., 2010, Rio Branco, AC. Parcerias entre universidades para a conservação e desenvolvimento sustentável na Amazônia: anais. Rio Branco, AC: UFAC; Gainesville: Universidade da Florida, 2010. 1 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre. |
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| 3. | | REIS, J. B. R. da S.; SILVA, J. P. S.; LEAL, D. P. V. Estudo de lâminas de irrigação localizada para a produção de pinhão-manso (Jatropha curcas L.) no norte de Minas Gerais. In: CONGRESSO BRASILEIRO DE PESQUISA EM PINHÃO MANSO, 1., 2009, Brasília, DF. Pesquisa, desenvolvimento e inovação: tecnologia para biocombústiveis: anais. São Paulo: ABPPM; Brasília, DF: Embrapa Agroenergia, 2009.| Biblioteca(s): Embrapa Cerrados. |
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| 4. | | SILVA, J. P. S.; REIS, J. B. R. da S.; LEAL, D. P. V. Estudo de lâminas do sistema de microaspersão para a produção de pinhão-manso (Jatropha curcas L.) no norte de Minas Gerais. In: CONGRESSO BRASILEIRO DE PESQUISA EM PINHÃO MANSO, 1., 2009, Brasília, DF. Pesquisa, desenvolvimento e inovação: tecnologia para biocombústiveis: anais. São Paulo: ABPPM; Brasília, DF: Embrapa Agroenergia, 2009.| Biblioteca(s): Embrapa Cerrados. |
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| 5. | | LEMOS, W. de P.; RIBEIRO, R. C.; LHANO, M. G.; SILVA, J. P. S. da; ZANUNCIO, J. C. Cornops frenatum frenatum (Marschall) (Orthoptera: Acrididae, Leptysminae) in crops of tropical flowers of Heliconia spp. in the State of Pará, Brazil. Entomotropica, v. 25, n. 1, p. 43-47, abr. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 6. | | PEREIRA, A. I. de A.; SILVA, G. F. da; MALAQUIAS, J. B; BANDEIRA, C. de M.; SILVA, J. P. S. da; RAMALHO, F. de SOUZA; ZANÚNCIO, J. C. Adulthood parameters of podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) submitted to sublethal doses of Gammacyhalothrin. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 21., 2006, Recife. Entomologia: da academia à transferência de tecnologia: resumos. Recife: SEB: UFRPE, 2006. 1 CD-ROM.| Biblioteca(s): Embrapa Algodão. |
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| 7. | | SILVA, J. P. S da; NASCIMENTO, C. W. A. do; SILVA, D. J.; CUNHA, K. P. V da; BIONDI, C. M. Changes in soil fertility and mineral nutrition of mango orchards in São Francisco Valley, Brazil. Agrária - Revista Brasileira de Ciências Agrárias, Recife, v. 9. n. 1, p. 42-48, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Semiárido. |
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| 8. | | GOMES, T. C. de A.; SANTOS, T. A.; LIMA C. C. de; NASCUNEBTI, C. W. A. do; CARVALHO, V. G. B. de; SILVA, J. P. S. da. Condutividade elétrica e capacidade de troca catiônica de compostos orgânicos formulados com resíduos sólidos da agroindústria da cana adiconados de vinhaça. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. [Uberlândia]: SBCS: UFU, ICIAG, 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 9. | | RAMALHO, F. S.; MEZZOMO, J.; LEMOS, W. P.; BANDEIRA, C. M.; MALAQUIA, J. B.; SILVA, J. P. S.; LEITE, G. L. D.; ZANUNCIO, J. C. Reproductive strategy of Podisus Nigrispinus females under different feeding intervals. Phytoparasitica, v. 36, n. 1, p. 30-37, Feb. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 10. | | RAMALHO, F. de S.; MEZZOMO, J.; LEMOS, W. P.; BANDEIRA, C. M.; MALAQUIA, J. B.; SILVA, J. P. S.; LEITE, G. L. D.; ZANUNCIO, J. C. Reproductive strategy of Podisus Nigrispinus females under different feeding intervals. Phytoparasitica, v. 36, n. 1., p. 30-37, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Algodão. |
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| 11. | | PEREIRA, A. I. A.; RAMALHO, F. de S.; MALAQUIA, J. B.; BANDEIRA, C. M.; SILVA, J. P. S.; ZANUNCIO, J. C. Density of alabama argillacea larvae affects food extraction by females of podisus nigrispinus. Phytoparasitica, v. 36, n. 1., p. 84-94, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Algodão. |
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| 12. | | SANTOS, G. de S.; REIS, J. B. R. da S.; JESUS, A. M. de; COSTA, E. L. da; SILVA, J. P. S. e. Efeito de diferentes sistemas de irrigação do pinhão-manso sobre a população de nematóides do solo. In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 4.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 7., 2010, Belo Horizonte. Biodiesel: inovação tecnológica e qualidade: anais. Lavras: UFLA, 2010. v. 1 p. 811-812. il.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 12 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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