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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
20/01/2006 |
Data da última atualização: |
29/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOUZA-PACCOLA, E. A.; FAVARO, L. C.; CASELA, C. R.; PACCOLA-MEIRELLES, L. D. |
Afiliação: |
Embrapa Milho e Sorgo. |
Título: |
Genetic recombination in colletotrichum sublineolum. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
Journal of Phytopathology, Berlin, v. 151, n. 6, p. 329-334, 2003. |
Idioma: |
Inglês |
Conteúdo: |
Genetic recombination without typical parasexuality (parameiosis) was shown in the fungus Colletotrichum sublineolum, causal agent of anthracnose on sorghum. The cross among auxotrophic mutants and mutants resistant to benomyl and cycloheximide confirmed the occurrence of heterokaryosis in this species. Aneuploid and haploid recombinants were obtained from heterokaryons. Some segregants released sectors continually after several replication cycles, and were considered aneuploids in the process of haploidization. Heterokaryons derived from crosses among mutants that presented low pathogenicity produced more virulent recombinants. Parasexuality with parameiosis may represent a natural mechanism for genetic variability amplification explaining the rapid appearance of new C. sublineolum physiological races. |
Palavras-Chave: |
Heterokaryosis; Parameiosis; Vegetative compatibility. |
Thesaurus Nal: |
mutants; parasexual cycle. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01444naa a2200217 a 4500 001 1489114 005 2018-05-29 008 2003 bl uuuu u00u1 u #d 100 1 $aSOUZA-PACCOLA, E. A. 245 $aGenetic recombination in colletotrichum sublineolum.$h[electronic resource] 260 $c2003 520 $aGenetic recombination without typical parasexuality (parameiosis) was shown in the fungus Colletotrichum sublineolum, causal agent of anthracnose on sorghum. The cross among auxotrophic mutants and mutants resistant to benomyl and cycloheximide confirmed the occurrence of heterokaryosis in this species. Aneuploid and haploid recombinants were obtained from heterokaryons. Some segregants released sectors continually after several replication cycles, and were considered aneuploids in the process of haploidization. Heterokaryons derived from crosses among mutants that presented low pathogenicity produced more virulent recombinants. Parasexuality with parameiosis may represent a natural mechanism for genetic variability amplification explaining the rapid appearance of new C. sublineolum physiological races. 650 $amutants 650 $aparasexual cycle 653 $aHeterokaryosis 653 $aParameiosis 653 $aVegetative compatibility 700 1 $aFAVARO, L. C. 700 1 $aCASELA, C. R. 700 1 $aPACCOLA-MEIRELLES, L. D. 773 $tJournal of Phytopathology, Berlin$gv. 151, n. 6, p. 329-334, 2003.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
30/12/2019 |
Data da última atualização: |
30/12/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
C - 0 |
Autoria: |
REIS, R. H. P. dos; ABREU, J. G. de; ALMEIDA, R. G. de; CABRAL, L. da S.; BARROS, L. V. de; CABRAL, C. E. A.; BEHLING NETO, A.; MATTER, E.; ROYER, P. O.; HERRERA, D. M.; FARIAS, J. de M. |
Afiliação: |
Rafael Henrique Pereira dos Reis, Universidade Federal de Mato Grosso - UFMT; Joadil Gonçalves de Abreu, Universidade Federal de Mato Grosso - UFMT; ROBERTO GIOLO DE ALMEIDA, CNPGC; Luciano da Silva Cabral, Universidade Federal de Mato Grosso - UFMT; Livia Vieira de Barros, Universidade Federal de Mato Grosso - UFMT; Carlos Eduardo Avelino Cabral, Universidade Federal de Mato Grosso - UFMT; Arthur Behling Neto, Universidade Federal de Mato Grosso - UFMT; Edegar Matter, Universidade Federal de Mato Grosso - UFMT; Patricia Orlando Royer, Universidade Federal de Mato Grosso - UFMT; Dayenne Mariane Herrera, Universidade Federal de Mato Grosso - UFMT; Joana de Medeiros Farias, Universidade Federal de Mato Grosso - UFMT. |
Título: |
Agronomic Characteristics, Chemical Composition and In vitro Gas Production of Sugarcane Cultivars (Saccharum spp.) for Feeding Ruminants. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Journal of Experimental Agriculture International, v. 35, n. 1, p. 1-8, 2019. |
Idioma: |
Inglês |
Conteúdo: |
solids content (BRIX), NDF/BRIX ratio and tons of sucrose/ha, total digestible nutrients, digestible energy, metabolizable energy, net energy and in vitro digestibility of organic matter, crude protein, neutral detergent fiber (NDF) and acid detergent, of digestion and In vitro gas production of nonfibrous carbohydrates, latency time, digestion rate and gas production of fibrous carbohydrates, and in vitro digestibility of organic matter. There was a significant difference between the cultivars regarding the neutral detergent fiber content, in vitro digestibility of organic matter, total digestible nutrients, digestible energy, net energy, degradation rates of fibrous and non-fibrous carbohydrates and latency period. There was a negative correlation between stem percentage and NDF/BRIX and positive correlation between in vitro digestibility of organic matter and total digestible nutrients. The results were submitted to analysis of variance and mean test by Scott-Knott and Pearson's correlation analysis. The statistical program used was SAEG 2000. The RB835486 variety was superior to the other cultivars, as it presented 93.28% of stem, 57.5% of in vitro digestibility of organic matter, NDF / BRIX ratio of 2.68, 43.78% NDF, latency period 2.86h and fibrous carbohydrate degradation rate of 2.26% per hour. Therefore, this cultivar was better indicated for animal feeding between May and July in the State of Mato Grosso, Brazil. |
Palavras-Chave: |
Feeding ruminants; In vitro degradation kinetics; Saccharum spp. |
Thesaurus NAL: |
Digestibility. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208004/1/Agronomic-Characteristics-Chemical-Composition.pdf
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Marc: |
LEADER 02371naa a2200289 a 4500 001 2117953 005 2019-12-30 008 2019 bl uuuu u00u1 u #d 100 1 $aREIS, R. H. P. dos 245 $aAgronomic Characteristics, Chemical Composition and In vitro Gas Production of Sugarcane Cultivars (Saccharum spp.) for Feeding Ruminants.$h[electronic resource] 260 $c2019 520 $asolids content (BRIX), NDF/BRIX ratio and tons of sucrose/ha, total digestible nutrients, digestible energy, metabolizable energy, net energy and in vitro digestibility of organic matter, crude protein, neutral detergent fiber (NDF) and acid detergent, of digestion and In vitro gas production of nonfibrous carbohydrates, latency time, digestion rate and gas production of fibrous carbohydrates, and in vitro digestibility of organic matter. There was a significant difference between the cultivars regarding the neutral detergent fiber content, in vitro digestibility of organic matter, total digestible nutrients, digestible energy, net energy, degradation rates of fibrous and non-fibrous carbohydrates and latency period. There was a negative correlation between stem percentage and NDF/BRIX and positive correlation between in vitro digestibility of organic matter and total digestible nutrients. The results were submitted to analysis of variance and mean test by Scott-Knott and Pearson's correlation analysis. The statistical program used was SAEG 2000. The RB835486 variety was superior to the other cultivars, as it presented 93.28% of stem, 57.5% of in vitro digestibility of organic matter, NDF / BRIX ratio of 2.68, 43.78% NDF, latency period 2.86h and fibrous carbohydrate degradation rate of 2.26% per hour. Therefore, this cultivar was better indicated for animal feeding between May and July in the State of Mato Grosso, Brazil. 650 $aDigestibility 653 $aFeeding ruminants 653 $aIn vitro degradation kinetics 653 $aSaccharum spp 700 1 $aABREU, J. G. de 700 1 $aALMEIDA, R. G. de 700 1 $aCABRAL, L. da S. 700 1 $aBARROS, L. V. de 700 1 $aCABRAL, C. E. A. 700 1 $aBEHLING NETO, A. 700 1 $aMATTER, E. 700 1 $aROYER, P. O. 700 1 $aHERRERA, D. M. 700 1 $aFARIAS, J. de M. 773 $tJournal of Experimental Agriculture International$gv. 35, n. 1, p. 1-8, 2019.
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