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| Registros recuperados: 18 | |
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| FALEIRO, F. G.; JUNQUEIRA, N. T. V.; JUNGHANS, T. G.; JESUS, O. N. de; MIRANDA, D.; OTONI, W. C.. |
| The propagation of many passion fruit species (Passiflora spp.) is done by seeds or sexual method, although asexual propagation, such stem cuttings, grafting or tissue culture is also possible and very useful in many cases. In this work, it was presented information on scientific and technological advances in sexual and asexual propagation of passion fruit, considering the different propagation methods and their applications. New demands for research and development activities are also related, given the wide range of passion fruit species and its potential for food, ornamental and medicinal use. |
| Tipo: Artigo de periódico |
Palavras-chave: Maracujá; Germinação; Propagação Vegetativa; Estaca; Planta Porta-Enxerto; Cultura de Tecido; Seed germination; Vegetative propagation; Plant cuttings; Grafting (plants); Tissue culture. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1114508 |
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| FLORES, P. S.; OTONI, W. C.; DHINGRA, O. D.; DINIZ, S. P. S. de S.; SANTOS, T. M. dos; BRUCKNER, C. H.. |
| Fusarium vascular wilt (caused by Fusarium oxysporum f. sp. passiflorae) is a limiting factor in the cultivation of yellow passion fruit (Passiflora edulis). Since there is no effective and economically viable control available, development of resistant or at least tolerant cultivars are in demand. A number of procedures have been used for the initial selection of plant genotypes resistant to various fungal pathogens by means of a fungal culture filtrate or purified toxin. In this study, seeds and in vitro-grown plantlets of passion fruit were screened with different concentrations of either Fusarium oxysporum f. sp. passiflorae (FOP) culture filtrate (0, 20, 30, 40 or 50%, v/v) or fusaric acid (0.10, 0.20, 0.30 or 0.40 mM) supplemented in Murashige and... |
| Tipo: Artigo de periódico |
Palavras-chave: Maracujá amarelo; Yellow passion fruit; Maracuyá amarillo; Fusarium oxysporum f sp passiflorae; Fusariosis; Cultivo in vitro; Enfermedades y desórdenes de las plantas; Passiflora edulis f flavicarpa.; Doença de planta; Maracujá Peroba; Passiflora edulis flavicarpa; Fungo; Fusariose; Seleção genótipa; Cultura in vitro; Variedade resistente; Características Agronômicas; Genótipo.; Plant diseases and disorders; Fungi; Genotype; Agronomic traits; In vitro culture.. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/916487 |
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| PICOLI, E. A. T.; OTONI, W. C.; CECON, P. R.; FARI, M.. |
| The influence of increasing concentrations of naphthaleneacetic acid and the antibiotics cefotaxim?, timentin, kanamycin, and hygromycin on eggplant (Solanum melongena L. cv. Emb£) somatic embryogenesis was investigated. Cotyledon explants were excised from 16 to 20 days old in vitro grown seedlings. NAA promoted somatic embryogenesis, although its concentrations had no influence on the mean number of embryos. Callusing decreased significantly with increasing NAA concenti-ations. Morphogenesis was stopped with 50 to 100 mg L-I kanamycin and 7.5 to 15 mg L-I hygromycin. Although early globular embryos were observed up to 15 mg L-I, further embryo development was inhibited at 10 mg L .1. Interestingly, cefotaxime (250 and 500 mg L -1) promoted a marked... |
| Tipo: Artigo de periódico |
Palavras-chave: Aubergine; Antibiótico; Berinjela; Embriogénese; Potássio; Solanum Melongena; Antibiotics; Embryogenesis; Potassium. |
| Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/134109 |
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| IAREMA, L.; CRUZ, A. C. F. da; SALDANHA, C. W.; DIAS, L. L. C.; VIEIRA, R. F.; OLIVEIRA, E. J. de; OTONI, W. C.. |
| Pfaffia glomerata (Spreng.) Pedersen is a medicinal species of great interest because it produces the phytoecdysteroid 20-hydroxyecdysone (20E). Generally, because of atypical growing conditions, in vitro propagated plants function less ef?ciently as autotrophs and have poorly developed morphological structures. This study analyzed the autotrophic potential of P. glomerata propagated in vitro and evaluated the in?uence that this has on 20E biosynthesis. Physiological and structural parameters of plants subjected to heterotrophic, photomixotrophic and photoautotrophic growth conditions were evaluated. Levels of 20E were measured by HPLC. Plants were acclimatized in a mixture of soil, sand and substrate, in a greenhouse. Conditions that provided higher... |
| Tipo: Separatas |
Palavras-chave: B-Ecdysone; Photomixotrophic; Sucrose-free medium; Pfaffia Glomerata; Sacarose; Gas exchange; Phytoecdysteroids. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/951365 |
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| SANTOS, M. A. C. dos; REGO, M. M. do; QUEIROZ, M. A. de; DANTAS, B. F.; OTONI, W. C.. |
| The Brazilian guava (Psidium guineense Swartz) is seed-propagated and, being native to the Caatinga biome, may frequently have uneven germination.Thus, we aimed to evaluate the synchronization of the in vitro seed germination of three accessions of the Brazilian guava, using water, polyethyleneglycol (PEG 6000), and potassium nitrate (KNO3) at different potentials and times of osmotic priming. Seeds from three accessions of the Brazilian guava (Y85, Y93,and Y97) from the UNEB/BA Germplasm Active Bank were subjected to the following pretreatments: -0.6, -1.0, -1.4, and -1,8 MPa PEG 6000; 10 and 20% KNO3 for 24h; 10 and 20% KNO3for 48h; water for 24 and 48h; and non-primed seeds as the control. The experimental design was therefore a 10x3+1 factorial scheme.... |
| Tipo: Artigo de periódico |
Palavras-chave: Acessos de araça; Guava.; Goiaba; Germinação; Semente; Caatinga; Seeds; Psidium guineense.. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1060998 |
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| SANTOS, M. A. C. dos; REGO, M. M. do; QUEIROZ, M. A. de; DANTAS, B. F.; OTONI, W. C.. |
| The Brazilian guava (Psidium guineense Swartz) is seed-propagated and, being native to the Caatinga biome, may frequently have uneven germination.Thus, we aimed to evaluate the synchronization of the in vitro seed germination of three accessions of the Brazilian guava, using water, polyethyleneglycol (PEG 6000), and potassium nitrate (KNO3) at different potentials and times of osmotic priming. Seeds from three accessions of the Brazilian guava (Y85, Y93,and Y97) from the UNEB/BA Germplasm Active Bank were subjected to the following pretreatments: -0.6, -1.0, -1.4, and -1,8 MPa PEG 6000; 10 and 20% KNO3 for 24h; 10 and 20% KNO3 for 48h; water for 24 and 48h; and non-primed seeds as the control. The experimental design was therefore a 10x3+1 factorial... |
| Tipo: Artigo de periódico |
Palavras-chave: Psidium guineense Swartz; Germinação in vitro; Acessos de araçá; Brazilian guava.; Planta nativa; Caatinga; Semente; Germinação; Araça.; Germination.. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1055933 |
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| SOARES, V. L. F.; RODRIGUES, S. M.; OLIVEIRA, T. M. de; QUEIROZ, T. O. de; LIMA, L. S.; HORA-JÚNIOR, B. T.; GRAMACHO, K. P.; MICHELI, F.; CASCARDO, J. C. M.; OTONI, W. C.; GESTEIRA, A. S.; COSTA, M. G. C.. |
| The tropical tree Bixa orellana L. produces a range of secondary metabolites which biochemical and molecular biosynthesis basis are not well understood. In this work we have characterized a set of ESTs from a nonnormalized cDNA library of B. orellana seeds to obtain information about the main developmental and metabolic processes taking place in developing seeds and their associated genes. After sequencing a set of randomly selected clones, most of the sequences were assigned with putative functions based on similarity, GO annotations and protein domains. The most abundant transcripts encoded proteins associated with cell wall (prolyl 4-hydroxylase), fatty acid (acyl carrier protein), and hormone/flavonoid (2OG-Fe oxygenase) synthesis, germination (MADS... |
| Tipo: Separatas |
Palavras-chave: Apocarotenoids; Bixa orellana L; Carotenoid-cleavage dioxygenase; O-methyltransferase; Bixin; Sequencia genetica; Caroteno; Pigmento; Urucum. |
| Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/858658 |
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| Registros recuperados: 18 | |
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