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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
23/01/2006 |
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Data da última atualização: |
10/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ADAMOWSKI, E. de V.; PAGLIARINI, M. S.; BONATO, A. B. M.; BATISTA, L. A. R.; VALLS, J. F. M. |
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Afiliação: |
ELENIZA DE VICTOR ADAMOWSKI, Universidade Paranaense; MARIA SUELY PAGLIARINI, Universidade Estadual de Maringá; ANDRÉA BEATRIZ MENDES BONATO, Universidade Estadual de Maringá; LUIZ ALBERTO ROCHA BATISTA, CPPSE; JOSE FRANCISCO MONTENEGRO VALLS, Cenargen. |
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Título: |
Chromossome numbers and meiotic behavior of some Paspalum accessions. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Genetic and Molecular Biology, v. 28, n. 4, p. 773-780, dec. 2005. |
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DOI: |
https://doi.org/10.1590/S1415-47572005000500020 |
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Idioma: |
Inglês |
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Conteúdo: |
Chromosome number and meiotic behavior were evaluated in 36 Brazilian accessions of the grass Paspalum (which had never previously been analyzed) to determinate which accessions might be useful in interspecific hybridizations. The analysis showed that one accession of Paspalum coryphaeum was diploid (2n = 2x = 20) and one accession of Paspalum conspersum hexaploid (2n = 6x = 60), the remaining 34 accessions being tetraploid (2n = 4x = 40). The pairing configuration was typical for the ploidy level i.e. in the diploid, chromosomes paired as 10 bivalents, in tetraploids as bi-, tri- and quadrivalents, and in hexaploid as 30 bivalents. A low frequency of meiotic abnormalities (less than 10%) was observed in the diploid, hexaploid and some tetraploid accessions, although the majority of tetraploid accessions showed a high frequency of meiotic irregularities. The use of accessions with a low frequency of meiotic abnormalities in breeding programs is discussed. |
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Palavras-Chave: |
Chromosome numbers; Meiotic behavior. |
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Thesaurus Nal: |
Forage grasses; Paspalum. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/88012/1/PROCI-2005.00179.pdf
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Marc: |
LEADER 01683naa a2200229 a 4500
001 1041288
005 2023-03-10
008 2005 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1415-47572005000500020$2DOI
100 1 $aADAMOWSKI, E. de V.
245 $aChromossome numbers and meiotic behavior of some Paspalum accessions.$h[electronic resource]
260 $c2005
520 $aChromosome number and meiotic behavior were evaluated in 36 Brazilian accessions of the grass Paspalum (which had never previously been analyzed) to determinate which accessions might be useful in interspecific hybridizations. The analysis showed that one accession of Paspalum coryphaeum was diploid (2n = 2x = 20) and one accession of Paspalum conspersum hexaploid (2n = 6x = 60), the remaining 34 accessions being tetraploid (2n = 4x = 40). The pairing configuration was typical for the ploidy level i.e. in the diploid, chromosomes paired as 10 bivalents, in tetraploids as bi-, tri- and quadrivalents, and in hexaploid as 30 bivalents. A low frequency of meiotic abnormalities (less than 10%) was observed in the diploid, hexaploid and some tetraploid accessions, although the majority of tetraploid accessions showed a high frequency of meiotic irregularities. The use of accessions with a low frequency of meiotic abnormalities in breeding programs is discussed.
650 $aForage grasses
650 $aPaspalum
653 $aChromosome numbers
653 $aMeiotic behavior
700 1 $aPAGLIARINI, M. S.
700 1 $aBONATO, A. B. M.
700 1 $aBATISTA, L. A. R.
700 1 $aVALLS, J. F. M.
773 $tGenetic and Molecular Biology$gv. 28, n. 4, p. 773-780, dec. 2005.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
14/03/2017 |
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Data da última atualização: |
29/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SOARES, B. V.; NEVES, L. R.; FERREIRA, D. O.; OLIVEIRA, M. S. B.; CHAVES, F. C. M.; CHAGAS, E. C.; GONÇALVES, R. A.; TAVARES-DIAS, M. |
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Afiliação: |
BRUNA VIANA SOARES, UNIFAP; LIGIA RIGÔR NEVES, EMBRAPA AMAPÁ; DRIELLY OLIVEIRA FERREIRA, EMBRAPA AMAPÁ; MARCOS SIDNEY BRITO OLIVEIRA, UFOPA; FRANCISCO CELIO MAIA CHAVES, CPAA; EDSANDRA CAMPOS CHAGAS, CPAA; RAISSA ALVES GONÇALVES, INPA; MARCOS TAVARES-DIAS, CPAF-AP. |
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Título: |
Antiparasitic activity, histopathology and physiology of Colossoma macropomum (tambaqui) exposed to the essential oil of Lippia sidoides (Verbenaceae). |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 234, p. 49-56, Jan. 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.vetpar.2016.12.012 |
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Idioma: |
Português |
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Conteúdo: |
In vivo and in vitro antiparasitic activity of the essential oil of Lippia sidoides and blood and histological alterations were assessed in Colossoma macropomum (tambaqui). Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg/L were assayed in vitro against monogenoideans Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri from fish gills. Lippia sidoides essential oil concentrations of 320 and 160 mg/L were 100% effective against monogenoideans in 10 min and 1 h of exposure, respectively. However, the effectiveness of 100% concentrations of 80 mg/L and 40 mg/L occurred in 3 and 6 h, respectively. In the in vivo tests, juvenile fish were submitted to 60 min of baths with 10 mg/L and 15 min of baths with 20 mg/L of the essential oil of L. sidoides. These therapeutic baths were not efficient against Ichthyophthirius multifiliis, and monogenoideans present in the gills of C. macropomum. In addition, 10 and 20 mg/L of the essential oil of L. sidoides caused an anesthetic effect on the fish and did not influence total glucose and protein plasma levels; however, it decreased the number of total erythrocytes in fish exposed to the higher concentration of this essential oil. Severe alterations and irreversible damage were observed in the fish gills just after L. sidoides essential oil baths and after 24 h of recovery. The most recurrent lesions found were hyperplasia and fusion of the lamellar epithelium, vasodilation, detachment of the gill epithelium and lamellar aneurism, epithelial breakdown with hemorrhage, congestion, edema and necrosis, proliferation of the mucous cells and chloride cells and lamellar hypertrophy. Therefore, since the essential oil of L. sidoides has in vitro antiparasitic activity and low concentrations of it have shown toxic effects, the bioactive potential of its main chemical components should be investigated, as well as more efficient forms of its administration in therapeutic baths in order to eliminate fish parasites. MenosIn vivo and in vitro antiparasitic activity of the essential oil of Lippia sidoides and blood and histological alterations were assessed in Colossoma macropomum (tambaqui). Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg/L were assayed in vitro against monogenoideans Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri from fish gills. Lippia sidoides essential oil concentrations of 320 and 160 mg/L were 100% effective against monogenoideans in 10 min and 1 h of exposure, respectively. However, the effectiveness of 100% concentrations of 80 mg/L and 40 mg/L occurred in 3 and 6 h, respectively. In the in vivo tests, juvenile fish were submitted to 60 min of baths with 10 mg/L and 15 min of baths with 20 mg/L of the essential oil of L. sidoides. These therapeutic baths were not efficient against Ichthyophthirius multifiliis, and monogenoideans present in the gills of C. macropomum. In addition, 10 and 20 mg/L of the essential oil of L. sidoides caused an anesthetic effect on the fish and did not influence total glucose and protein plasma levels; however, it decreased the number of total erythrocytes in fish exposed to the higher concentration of this essential oil. Severe alterations and irreversible damage were observed in the fish gills just after L. sidoides essential oil baths and after 24 h of recovery. The most recurrent lesions found were hyperplasia and fusion of the lamellar epithelium, vasodilation, detachment of the gill epi... Mostrar Tudo |
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Palavras-Chave: |
Medicinal plant; Parasite; Planta medicina. |
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Thesagro: |
Parasito; Peixe de água doce; Sangue. |
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Thesaurus NAL: |
Blood; Freshwater fish. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02984naa a2200313 a 4500
001 2067004
005 2017-03-29
008 2017 bl --- 0-- u #d
024 7 $ahttp://dx.doi.org/10.1016/j.vetpar.2016.12.012$2DOI
100 1 $aSOARES, B. V.
245 $aAntiparasitic activity, histopathology and physiology of Colossoma macropomum (tambaqui) exposed to the essential oil of Lippia sidoides (Verbenaceae).$h[electronic resource]
260 $c2017
520 $aIn vivo and in vitro antiparasitic activity of the essential oil of Lippia sidoides and blood and histological alterations were assessed in Colossoma macropomum (tambaqui). Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg/L were assayed in vitro against monogenoideans Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri from fish gills. Lippia sidoides essential oil concentrations of 320 and 160 mg/L were 100% effective against monogenoideans in 10 min and 1 h of exposure, respectively. However, the effectiveness of 100% concentrations of 80 mg/L and 40 mg/L occurred in 3 and 6 h, respectively. In the in vivo tests, juvenile fish were submitted to 60 min of baths with 10 mg/L and 15 min of baths with 20 mg/L of the essential oil of L. sidoides. These therapeutic baths were not efficient against Ichthyophthirius multifiliis, and monogenoideans present in the gills of C. macropomum. In addition, 10 and 20 mg/L of the essential oil of L. sidoides caused an anesthetic effect on the fish and did not influence total glucose and protein plasma levels; however, it decreased the number of total erythrocytes in fish exposed to the higher concentration of this essential oil. Severe alterations and irreversible damage were observed in the fish gills just after L. sidoides essential oil baths and after 24 h of recovery. The most recurrent lesions found were hyperplasia and fusion of the lamellar epithelium, vasodilation, detachment of the gill epithelium and lamellar aneurism, epithelial breakdown with hemorrhage, congestion, edema and necrosis, proliferation of the mucous cells and chloride cells and lamellar hypertrophy. Therefore, since the essential oil of L. sidoides has in vitro antiparasitic activity and low concentrations of it have shown toxic effects, the bioactive potential of its main chemical components should be investigated, as well as more efficient forms of its administration in therapeutic baths in order to eliminate fish parasites.
650 $aBlood
650 $aFreshwater fish
650 $aParasito
650 $aPeixe de água doce
650 $aSangue
653 $aMedicinal plant
653 $aParasite
653 $aPlanta medicina
700 1 $aNEVES, L. R.
700 1 $aFERREIRA, D. O.
700 1 $aOLIVEIRA, M. S. B.
700 1 $aCHAVES, F. C. M.
700 1 $aCHAGAS, E. C.
700 1 $aGONÇALVES, R. A.
700 1 $aTAVARES-DIAS, M.
773 $tVeterinary Parasitology$gv. 234, p. 49-56, Jan. 2017.
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