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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
18/01/2022 |
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Data da última atualização: |
18/01/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, L. A.; SOUZA, G. A. de; SILVA, B. T.; ROCHA, A. A. G.; PICOLI, E. A. de T.; PEREIRA, D. de S.; DONZELES, S. M. L.; RIBEIRO, M. de F.; FERREIRA, W. P. M. |
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Afiliação: |
LEONARDO ARAUJO OLIVEIRA, UFV; GENAINA APARECIDA DE SOUZA, UFV; BRUNO TAVARES SILVA, UFV; ANTÔNIO AUGUSTO GOMES ROCHA, UFV; EDGARD AUGUSTO DE TOLEDO PICOLI, UFV; DIEGO DE SOUZA PEREIRA, UFLA; SÉRGIO MAURÍCIO LOPES DONZELES, EPAMIG; MARCELO DE FREITAS RIBEIRO, EPAMIG; WILLIAMS PINTO MARQUES FERREIRA, CNPCa. |
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Título: |
Histochemical approach of the mobilization of reserve compounds in germinating coffee seeds. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Coffee Science, v. 15, e151704, p. 77 -100, 2020. |
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DOI: |
https://doi.org/10.25186/.v15i.1704 |
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Idioma: |
Inglês |
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Conteúdo: |
The endosperm of coffee beans is an important structure which is composed of different reserve compounds. In the present work, we followed anatomical features during the reserve mobilization of Coffea Arabica L. 'Catuaí' seed samples, harvested at 20 different sites, after 0, 3, 6, 12, 24, 33 and 45 days of imbibition. Seed samples were properly fixed and stored, respectively, for histochemical and enzyme activity approach. Fixed samples were cross-sectioned for detection of starch, lipids, essential oils, oleoresins, proteins, phenolic compounds, neutral polysaccharides, alkaloids, B-1,3 and B-1,4 glucans, and lignin. Overall, based on histochemical tests and enzyme activity, seed reserve mobilization was similar among the evaluated altitudes and mountainsides. During soaking, there is an intense consumption of reserve compounds, starting at the region close to the embryo. Reserve mobilization intensifies after root protrusion, from 12 days of soaking. The intensification of the reserve consumption is concomitant with an increased activity of MDH is observed at the first 12 days, whereas SOD showed higher expression after 33 days of soaking. At the 33 rd day, little reserve is observed in the endosperm. At 45th day, cotyledon leaves are expanded, and the root system, constituted by the taproot and lateral roots, is well established. |
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Thesagro: |
Coffea Arábica; Germinação. |
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Thesaurus Nal: |
Coffea arabica var. arabica; Germination; Histochemistry. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230346/1/histochemical-approach-of-the-mobilization.pdf
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Marc: |
LEADER 02234naa a2200289 a 4500
001 2139140
005 2022-01-18
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.25186/.v15i.1704$2DOI
100 1 $aOLIVEIRA, L. A.
245 $aHistochemical approach of the mobilization of reserve compounds in germinating coffee seeds.$h[electronic resource]
260 $c2020
520 $aThe endosperm of coffee beans is an important structure which is composed of different reserve compounds. In the present work, we followed anatomical features during the reserve mobilization of Coffea Arabica L. 'Catuaí' seed samples, harvested at 20 different sites, after 0, 3, 6, 12, 24, 33 and 45 days of imbibition. Seed samples were properly fixed and stored, respectively, for histochemical and enzyme activity approach. Fixed samples were cross-sectioned for detection of starch, lipids, essential oils, oleoresins, proteins, phenolic compounds, neutral polysaccharides, alkaloids, B-1,3 and B-1,4 glucans, and lignin. Overall, based on histochemical tests and enzyme activity, seed reserve mobilization was similar among the evaluated altitudes and mountainsides. During soaking, there is an intense consumption of reserve compounds, starting at the region close to the embryo. Reserve mobilization intensifies after root protrusion, from 12 days of soaking. The intensification of the reserve consumption is concomitant with an increased activity of MDH is observed at the first 12 days, whereas SOD showed higher expression after 33 days of soaking. At the 33 rd day, little reserve is observed in the endosperm. At 45th day, cotyledon leaves are expanded, and the root system, constituted by the taproot and lateral roots, is well established.
650 $aCoffea arabica var. arabica
650 $aGermination
650 $aHistochemistry
650 $aCoffea Arábica
650 $aGerminação
700 1 $aSOUZA, G. A. de
700 1 $aSILVA, B. T.
700 1 $aROCHA, A. A. G.
700 1 $aPICOLI, E. A. de T.
700 1 $aPEREIRA, D. de S.
700 1 $aDONZELES, S. M. L.
700 1 $aRIBEIRO, M. de F.
700 1 $aFERREIRA, W. P. M.
773 $tCoffee Science$gv. 15, e151704, p. 77 -100, 2020.
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Registro original: |
Embrapa Café (CNPCa) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
01/04/2005 |
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Data da última atualização: |
01/04/2005 |
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Autoria: |
CARVALHO, A. P. F. de; CARVALHO JUNIOR, O. A. de; GUIMARAES, R. F.; MADEIRA NETTO, J. da S.; BUSTAMANTE, M. M. da C. |
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Título: |
Medicao de cor de imagens hiperespectrais AVIRIS pelo sistema CIE (Comission Internationale d`Eclairage). |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
In: SIMPOSIO BRASILEIRO DE SENSORIAMENTO REMOTO- SBSR, 10., 2001, Foz do Iguacu. [Anais...]. [S.l.]: SELPER: INPE, 2001? |
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Idioma: |
Português |
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Conteúdo: |
This work was developed in order to adapt and to test the employment of the color system CIE in AVIRIS hiperspectrais images with the purpose to distinguish vegetation patterns in different substrata. It was used as test area the Niquelandia, GO image with nickel ore concentration, where the distribution and characteristic of the vegetation presents a strong geologic control. The atmospheric correction was made by the Green method. After that it was made the estimate of the values CIE (x, y, z and Y), being generated the relative images to the red, green, blue colors and brightness, respectively. Among the generated color composition (xyz and xyY), the one that uses the brightness (xyY) it allowed a better differentiation of the vegetation than it happens on the ultramafic rocks. The use of the color concept provides a reduction of the spectral space and it allows a better interactivity with the analyst due to the visual approach. The use of the color concept in the Niquelandia area allowed the differentiation of vegetation patterns in soils originated from ultramafic and mafic rocks. |
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Palavras-Chave: |
Imagem hiperespectral. |
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Thesagro: |
Cor; Sensoriamento Remoto. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01808naa a2200205 a 4500
001 1568195
005 2005-04-01
008 2001 bl uuuu u00u1 u #d
100 1 $aCARVALHO, A. P. F. de
245 $aMedicao de cor de imagens hiperespectrais AVIRIS pelo sistema CIE (Comission Internationale d`Eclairage).
260 $c2001
520 $aThis work was developed in order to adapt and to test the employment of the color system CIE in AVIRIS hiperspectrais images with the purpose to distinguish vegetation patterns in different substrata. It was used as test area the Niquelandia, GO image with nickel ore concentration, where the distribution and characteristic of the vegetation presents a strong geologic control. The atmospheric correction was made by the Green method. After that it was made the estimate of the values CIE (x, y, z and Y), being generated the relative images to the red, green, blue colors and brightness, respectively. Among the generated color composition (xyz and xyY), the one that uses the brightness (xyY) it allowed a better differentiation of the vegetation than it happens on the ultramafic rocks. The use of the color concept provides a reduction of the spectral space and it allows a better interactivity with the analyst due to the visual approach. The use of the color concept in the Niquelandia area allowed the differentiation of vegetation patterns in soils originated from ultramafic and mafic rocks.
650 $aCor
650 $aSensoriamento Remoto
653 $aImagem hiperespectral
700 1 $aCARVALHO JUNIOR, O. A. de
700 1 $aGUIMARAES, R. F.
700 1 $aMADEIRA NETTO, J. da S.
700 1 $aBUSTAMANTE, M. M. da C.
773 $tIn: SIMPOSIO BRASILEIRO DE SENSORIAMENTO REMOTO- SBSR, 10., 2001, Foz do Iguacu. [Anais...]. [S.l.]: SELPER: INPE, 2001?
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