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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
24/04/1998 |
Data da última atualização: |
13/07/2023 |
Autoria: |
OLIVEIRA, S. A. de; MACHADO, M. de F. P. da S.; PRIOLI, A. J.; MANGOLIN, C. A. |
Título: |
In vitro propagation of Cereus Peruvianus mill. (Cactaceae). |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
In Vitro Cell. Development Biology, v. 31, n. 1, p. 47-50, 1995. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Cereus peruvianus seedlings were used as a source of stem explants to determine the effective conditions for inducing and maintaining callus tissues in a state of rapid growth, as well as to obtain plants regenerated from callus cultures. Factorial combinations of 2,4-dichlorophenoxyacetic acid (2,4-D) and kinetin in MS medium were tested, and we concluded that the 18.1 uM 2,4-D and 18.6 or 27.9 1M kinetin combinations were suitable for callus induction. The cactus shoots were produced from the friable callus; root elongation occurred within 2 wk in medium without 2,4-D and with 18.6 1iM kinetin. This method can be used to rapidly produce many C. peruvianus plan. |
Palavras-Chave: |
Cactacea; Friable callus; Seedling stem explants; Shoot formation; Succulent plants. |
Thesagro: |
Cactaceae; Cacto. |
Thesaurus Nal: |
In vitro culture; Micropropagation. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 01436naa a2200265 a 4500 001 1523885 005 2023-07-13 008 1995 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, S. A. de 245 $aIn vitro propagation of Cereus Peruvianus mill. (Cactaceae).$h[electronic resource] 260 $c1995 520 $aAbstract: Cereus peruvianus seedlings were used as a source of stem explants to determine the effective conditions for inducing and maintaining callus tissues in a state of rapid growth, as well as to obtain plants regenerated from callus cultures. Factorial combinations of 2,4-dichlorophenoxyacetic acid (2,4-D) and kinetin in MS medium were tested, and we concluded that the 18.1 uM 2,4-D and 18.6 or 27.9 1M kinetin combinations were suitable for callus induction. The cactus shoots were produced from the friable callus; root elongation occurred within 2 wk in medium without 2,4-D and with 18.6 1iM kinetin. This method can be used to rapidly produce many C. peruvianus plan. 650 $aIn vitro culture 650 $aMicropropagation 650 $aCactaceae 650 $aCacto 653 $aCactacea 653 $aFriable callus 653 $aSeedling stem explants 653 $aShoot formation 653 $aSucculent plants 700 1 $aMACHADO, M. de F. P. da S. 700 1 $aPRIOLI, A. J. 700 1 $aMANGOLIN, C. A. 773 $tIn Vitro Cell. Development Biology$gv. 31, n. 1, p. 47-50, 1995.
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
06/08/2020 |
Data da última atualização: |
07/05/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ESTEVES, G. de F.; BRESSANIN, L. A.; SOUZA, K. R. D. de; SILVA, A. B. da; MANTOVANI, J. R.; MARQUES, D. M.; MAGALHAES, P. C.; PASQUAL, M.; SOUZA, T. C. de. |
Afiliação: |
Gisele de Fátima Esteves, Universidade Federal de Alfenas; Leticia Aparecida Bressanin, Universidade Federal de Alfenas; Kamila Rezende Dázio de Souza, Universidade Federal de Alfenas; Adriano Bortolotti da Silva, UNIFENAS; José Ricardo Mantovani, UNIFENAS; Daniele Maria Marques, Universidade Federal de Lavras; PAULO CESAR MAGALHAES, CNPMS; Moacir Pasqual, Universidade Federal de Lavras; Thiago Corrêa de Souza, Universidade de Alfenas. |
Título: |
Do tailings from the Mariana, MG (Brazil), disaster affect the initial development of millet, maize, and sorghum? |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 27, p. 38662-38673, 2020. |
DOI: |
10.1007/s11356-020-10013-w |
Idioma: |
Inglês |
Conteúdo: |
The collapse of the Fundão dam in Mariana, MG, in 2015 resulted in the overflow of more than 50 million m3 of mud containing mine tailings, leaving a path of destruction and immeasurable social and environmental consequences. Tailings? chemical and physical assessments revealed the presence of some elements at levels higher than those allowed by Brazilian guidelines. The tailings also showed high density, which restricts vegetation recovery. Therefore, this study aimed to analyze the effects of mud containing mine tailings from the Fundão dam on the germination and initial growth and development of three plant species: millet, maize, and sorghum. These species were cultivated on substrates with five tailings proportions: 0 T (100% sand), 25 T (25% tailings + 75% sand); 50 T (50% tailings + 50% sand); 75 T (75% tailings + 25% sand); and 100 T (100% tailings). In experiment I, the germination and initial growth of seedlings (plants with 1 or none fully expanded leaf) in these substrates were evaluated. In experiment II, growth parameters, photosynthetic efficiency (gas exchange and chlorophyll a fluorescence), metal accumulation, and plant root morphology of the same species were evaluated at the three fully expanded leaves vegetative stage (V3). Overall, the germination of seedlings and the initial growth of the three species analyzed were not affected by the presence of tailings. However, in plants at the V3 stage, morphophysiology variations differed among species, given that their growth, biomass accumulation, and root dynamics were altered. Proportions of tailings in the substrate did not influence the absorption of iron or manganese by the studied plants. At the V3 stage, maize was the most tolerant, with a more robust root system, and showed fewer morphological changes and greater water use efficiency than the other studied species MenosThe collapse of the Fundão dam in Mariana, MG, in 2015 resulted in the overflow of more than 50 million m3 of mud containing mine tailings, leaving a path of destruction and immeasurable social and environmental consequences. Tailings? chemical and physical assessments revealed the presence of some elements at levels higher than those allowed by Brazilian guidelines. The tailings also showed high density, which restricts vegetation recovery. Therefore, this study aimed to analyze the effects of mud containing mine tailings from the Fundão dam on the germination and initial growth and development of three plant species: millet, maize, and sorghum. These species were cultivated on substrates with five tailings proportions: 0 T (100% sand), 25 T (25% tailings + 75% sand); 50 T (50% tailings + 50% sand); 75 T (75% tailings + 25% sand); and 100 T (100% tailings). In experiment I, the germination and initial growth of seedlings (plants with 1 or none fully expanded leaf) in these substrates were evaluated. In experiment II, growth parameters, photosynthetic efficiency (gas exchange and chlorophyll a fluorescence), metal accumulation, and plant root morphology of the same species were evaluated at the three fully expanded leaves vegetative stage (V3). Overall, the germination of seedlings and the initial growth of the three species analyzed were not affected by the presence of tailings. However, in plants at the V3 stage, morphophysiology variations differed among species, given th... Mostrar Tudo |
Palavras-Chave: |
Rejeito. |
Thesagro: |
Dejeto; Lodo Residual. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02690naa a2200265 a 4500 001 2124211 005 2021-05-07 008 2020 bl uuuu u00u1 u #d 024 7 $a10.1007/s11356-020-10013-w$2DOI 100 1 $aESTEVES, G. de F. 245 $aDo tailings from the Mariana, MG (Brazil), disaster affect the initial development of millet, maize, and sorghum?$h[electronic resource] 260 $c2020 520 $aThe collapse of the Fundão dam in Mariana, MG, in 2015 resulted in the overflow of more than 50 million m3 of mud containing mine tailings, leaving a path of destruction and immeasurable social and environmental consequences. Tailings? chemical and physical assessments revealed the presence of some elements at levels higher than those allowed by Brazilian guidelines. The tailings also showed high density, which restricts vegetation recovery. Therefore, this study aimed to analyze the effects of mud containing mine tailings from the Fundão dam on the germination and initial growth and development of three plant species: millet, maize, and sorghum. These species were cultivated on substrates with five tailings proportions: 0 T (100% sand), 25 T (25% tailings + 75% sand); 50 T (50% tailings + 50% sand); 75 T (75% tailings + 25% sand); and 100 T (100% tailings). In experiment I, the germination and initial growth of seedlings (plants with 1 or none fully expanded leaf) in these substrates were evaluated. In experiment II, growth parameters, photosynthetic efficiency (gas exchange and chlorophyll a fluorescence), metal accumulation, and plant root morphology of the same species were evaluated at the three fully expanded leaves vegetative stage (V3). Overall, the germination of seedlings and the initial growth of the three species analyzed were not affected by the presence of tailings. However, in plants at the V3 stage, morphophysiology variations differed among species, given that their growth, biomass accumulation, and root dynamics were altered. Proportions of tailings in the substrate did not influence the absorption of iron or manganese by the studied plants. At the V3 stage, maize was the most tolerant, with a more robust root system, and showed fewer morphological changes and greater water use efficiency than the other studied species 650 $aDejeto 650 $aLodo Residual 653 $aRejeito 700 1 $aBRESSANIN, L. A. 700 1 $aSOUZA, K. R. D. de 700 1 $aSILVA, A. B. da 700 1 $aMANTOVANI, J. R. 700 1 $aMARQUES, D. M. 700 1 $aMAGALHAES, P. C. 700 1 $aPASQUAL, M. 700 1 $aSOUZA, T. C. de 773 $tEnvironmental Science and Pollution Research$gv. 27, p. 38662-38673, 2020.
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