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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
30/11/2021 |
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Data da última atualização: |
30/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, S. de O.; OLIVEIRA, R. S. de; AONA, L. Y. S.; SOUZA, F. V. D.; SOARES, T. L.; ROSSI, M. L. |
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Afiliação: |
SANDRA DE OLIVEIRA SOUZA, UFRB; RAFAELLE SOUZA DE OLIVEIRA, UFRB; LIDYANNE YURIKO SALEME AONA, UFRB; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF; TALIANE LEILA SOARES, UEFS; MÔNICA LANZONI ROSSI, USP. |
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Título: |
Pollen morphology and viability of Tillandsia (Bromeliaceae) species by light microscopy and scanning electron microscopy. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Microscopy Reserarch Technique, p.1-19, 2020. |
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ISSN: |
1097-0029 |
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Idioma: |
Inglês |
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Conteúdo: |
Tillandsia is the bromeliad genus containing the largest number of species, with wide geographic dispersion and an important ecological role in the ecosystems. Investiga- tions of pollen morphology are important to support taxonomic and conservation studies as well as to choose promising species for cross-pollination to obtain hybrids. The objective of this study was to evaluate the morphology, production, and viability of pollen grains of 24 Tillandsia species that naturally occur in the state of Bahia, Bra- zil. Pollen grains were acetolized and analyzed by scanning electron microscopy. Thepollen were germinated in vitro in two culture media (BM and BKM) and collected at three floral development stages (pre-anthesis, anthesis and post-anthesis). Pollen via-bility also was analyzed by staining with Alexander's solution and acetocarmine in three floral development stages. Variations in the ornamentation and size of the pol-len were observed among the species studied, with the majority having medium size, while T. polystachia and T. juncea had large grains and the subgenera Diaphoranthema and Phytarrhiza had small grains. The pollen of the majority of species had bilateral symmetry, with a single irregularly shaped colpus, semitectate exine and reticulated-heterobrochate surface. The pollen presented high germination percentage, tube length and viability according to the histochemistry, except for T. recurvata, T. usneoides and T. loliacea. The BKM medium and collection of pollen during anthesis produced the best results for the Tillandsia species. The results can support studies ofthe taxonomy and conservation of these species, which have great environmental importance and high value for ornamental purposes. MenosTillandsia is the bromeliad genus containing the largest number of species, with wide geographic dispersion and an important ecological role in the ecosystems. Investiga- tions of pollen morphology are important to support taxonomic and conservation studies as well as to choose promising species for cross-pollination to obtain hybrids. The objective of this study was to evaluate the morphology, production, and viability of pollen grains of 24 Tillandsia species that naturally occur in the state of Bahia, Bra- zil. Pollen grains were acetolized and analyzed by scanning electron microscopy. Thepollen were germinated in vitro in two culture media (BM and BKM) and collected at three floral development stages (pre-anthesis, anthesis and post-anthesis). Pollen via-bility also was analyzed by staining with Alexander's solution and acetocarmine in three floral development stages. Variations in the ornamentation and size of the pol-len were observed among the species studied, with the majority having medium size, while T. polystachia and T. juncea had large grains and the subgenera Diaphoranthema and Phytarrhiza had small grains. The pollen of the majority of species had bilateral symmetry, with a single irregularly shaped colpus, semitectate exine and reticulated-heterobrochate surface. The pollen presented high germination percentage, tube length and viability according to the histochemistry, except for T. recurvata, T. usneoides and T. loliacea. The BKM medium and collection of po... Mostrar Tudo |
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Thesagro: |
Pólen. |
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Categoria do assunto: |
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Marc: |
LEADER 02359naa a2200205 a 4500
001 2136803
005 2021-11-30
008 2020 bl uuuu u00u1 u #d
022 $a1097-0029
100 1 $aSOUZA, S. de O.
245 $aPollen morphology and viability of Tillandsia (Bromeliaceae) species by light microscopy and scanning electron microscopy.$h[electronic resource]
260 $c2020
520 $aTillandsia is the bromeliad genus containing the largest number of species, with wide geographic dispersion and an important ecological role in the ecosystems. Investiga- tions of pollen morphology are important to support taxonomic and conservation studies as well as to choose promising species for cross-pollination to obtain hybrids. The objective of this study was to evaluate the morphology, production, and viability of pollen grains of 24 Tillandsia species that naturally occur in the state of Bahia, Bra- zil. Pollen grains were acetolized and analyzed by scanning electron microscopy. Thepollen were germinated in vitro in two culture media (BM and BKM) and collected at three floral development stages (pre-anthesis, anthesis and post-anthesis). Pollen via-bility also was analyzed by staining with Alexander's solution and acetocarmine in three floral development stages. Variations in the ornamentation and size of the pol-len were observed among the species studied, with the majority having medium size, while T. polystachia and T. juncea had large grains and the subgenera Diaphoranthema and Phytarrhiza had small grains. The pollen of the majority of species had bilateral symmetry, with a single irregularly shaped colpus, semitectate exine and reticulated-heterobrochate surface. The pollen presented high germination percentage, tube length and viability according to the histochemistry, except for T. recurvata, T. usneoides and T. loliacea. The BKM medium and collection of pollen during anthesis produced the best results for the Tillandsia species. The results can support studies ofthe taxonomy and conservation of these species, which have great environmental importance and high value for ornamental purposes.
650 $aPólen
700 1 $aOLIVEIRA, R. S. de
700 1 $aAONA, L. Y. S.
700 1 $aSOUZA, F. V. D.
700 1 $aSOARES, T. L.
700 1 $aROSSI, M. L.
773 $tMicroscopy Reserarch Technique, p.1-19, 2020.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 24 | |
| 4. |  | SUGAWARA, L. M.; RUDORFF, B. F. T.; ADAMI, M. Viabilidade de uso de imagens do Landsat em mapeamento de área cultivada com soja no Estado do Paraná. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 12, p. 1777-1783, dez. 2008. Título em inglês: Feasibility of the use of Landsat imagery to map soybean crop areas in Paraná, Brazil.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | ADAMI, M.; RIZZI, R.; MOREIRA, M. A.; RUDORFF, B. F. T.; FERREIRA, C. C. Amostragem probabilística estratificada por pontos para estimar a área cultivada com soja. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 6, p. 585-592, jun. 2010 Título em inglês: Probabilistic stratified point sampling to estimate soybean crop area.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 7. | | EPIPHANIO, J. C. N.; GLERIANI, J. M.; FORMAGGIO, A. R.; RUDORFF, B. F. T. Índices de vegetação no sensoriamento remoto da cultura do feijão. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 31, n. 6, p. 445-454, jun. 1996. Título em inglês: Vegetation indices for remote sensing of beans (Phaseolus vulgaris L.).| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | GUSSO, A.; FORMAGGIO, A. R.; RIZZI, R.; ADAMI, M.; RUDORFF, B. F. T. Soybean crop area estimation by Modis/Evi data. Pesquisa Agropecuaria Brasileira, Brasília, DF, v. 47, n. 3, p. 425-435, mar. 2012. Título em português: Estimativa de áreas de cultivo de soja por meio de dados Modis/Evi.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 15. | | EPIPHANIO, R. D. V.; FORMAGGIO, A. R.; RUDORFF, B. F. T.; MAEDA, E. E.; LUIZ, A. J. B. Estimating soybean crop areas using spectral-temporal surfaces derived from MODIS images in Mato Grosso, Brazil. Pesquisa Agropecuária Brasileira, Brasília, DF v. 45, n. 1, p. 72-80, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente; Embrapa Unidades Centrais. |
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| 16. | | RISSO, J.; RIZZI, R.; RUDORFF, B. F. T.; ADAMI, M.; SHIMABUKURO, Y. E.; FORMAGGIO, A. R.; EPIPHANIO, R. D. V. Índices de vegetação Modis aplicados na discriminação de áreas de soja. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 9, p. 1317-1326, set. 2012. Título em inglês: Modis vegetation indices applied to soybean area discrimination.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 17. | | ADAMI, M.; MOREIRA, M. A.; RUDORFF, B. F. T.; FREITAS, C. da C.; FARIA, R. T. de; DEPPE, F. Painel amostral para estimativa de áreas agrícolas. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 1, p. 81-88, jan. 2007 Título em inglês: Sampling frame for crop area estimation.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 18. | | SILVA, G. B. S. da; MELLO, M. P.; SHIMABUKURO, Y. E.; RUDORFF, B. F. T.; VICTORIA, D. de C. Multitemporal classification of natural vegetation cover in Brazilian Cerrado. In: INTERNATIONAL WORKSHOP ON THE ANALYSIS OF MULTI-TEMPORAL REMOTE SENSING IMAGES, 6., 2011, Trento, IT. Anais... Trento: IEEE, 2011. p. 117-120.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Territorial. |
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| Registros recuperados : 24 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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