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| Registros recuperados: 26 | |
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| Appezzato-da-Glória,Beatriz; Cury,Graziela. |
| In the Brazilian Cerrado (neotropical savanna), the development of bud-bearing underground systems as adaptive structures to fire and dry periods can comprise an important source of buds for this ecosystem, as already demonstrated in the Brazilian Campos grasslands and North American prairies. Asteraceae species from both woody and herbaceous strata have subterranean organs that accumulate carbohydrates, reinforcing the adaptive strategy of these plants to different environmental conditions. This study aims to analyse the morpho-anatomy of underground systems of six species of Asteraceae (Mikania cordifolia L.f. Willd., Mikania sessilifolia DC, Trixis nobilis (Vell.) Katinas, Pterocaulon alopecuroides (Lam.) DC., Vernonia elegans Gardner and Vernonia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Buds; Compositae; Fructans; Stem tuber; Xylopodium. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300017 |
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| Bron,Ilana Urbano; Jacomino,Angelo Pedro; Appezzato-da-Glória,Beatriz. |
| O presente trabalho objetivou avaliar as características anatômicas e físico-químicas de pêssegos (Prunus persica (L.) Batsch) 'Aurora-1' e 'Dourado-2', armazenados em diferentes temperaturas e períodos. No primeiro experimento, os frutos foram armazenados a 0, 3 e 6ºC por 14, 21, 28 e 35 dias (mais dois dias de simulação à comercialização, sob 25ºC). No segundo experimento, os frutos foram armazenados a 0 e 3ºC por 7, 14, 21, 28 e 35 dias (mais dois dias de simulação à comercialização, sob 25ºC). O delineamento experimental empregado foi inteiramente ao acaso, em esquema fatorial, com quatro repetições em parcelas de seis frutos. Pêssegos 'Dourado-2', após sete dias de armazenamento a 3ºC ou 14 dias de armazenamento a 0ºC, apresentaram lanosidade... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Prunus persica; Propriedade físico-química; Anatomia vegetal; Conservação de alimento; Distúrbio fisiológico; Lanosidade. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002001000001 |
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| Fernando,Juliana Aparecida; Vieira,Maria Lúcia Carneiro; Geraldi,Isaías Olívio; Appezzato-da-Glória,Beatriz. |
| A comparative anatomical analysis of somatic embryogenesis in two soybean (Glycine max (L.) Merrill) genotypes was carried out. The somatic embryos were originated from cotyledonary explants obtained from immature zygotic embryos. The medium used for somatic embryogenesis induction was Murashige and Skoog, 1962, salts and Gamborg et al., 1968, vitamins (MSB) supplemented with 0.8 mg.L-1 of 2,4-D for genotype PI 123439 and 40 mg.L-1 of 2,4-D for Williams 82. Globular structures, constituted by meristematic cells, originated from subepidermal cell divisions of the cotyledonary mesophyll. In PI 123439, the globular structures presented tracheary differentiation among meristematic cells and they could follow distinct morphogenetic process depending on their... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max anatomy somatic embryogenesis 2; 4-D. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300005 |
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| Garcia,José Francisco; Grisoto,Eliane; Botelho,Paulo Sérgio Machado; Parra,José Roberto Postali; Appezzato-da-Glória,Beatriz. |
| The sugarcane spittlebug Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) is a pest of mechanically-harvested sugarcane in Brazil, when trash burning is not performed. To better understand the differences in feeding behavior of adults and nymphs of this pest and the subsequent disorders that arise, stylet penetration through fixation, staining and sectioning was investigated. Nymphs cause a "physiological disorder" damaging the tracheary system of the roots, slowing or preventing water and nutrient flow, with phloem and xylem dehydration. Nymphs insert their stylets through the epidermis, crossing the cortex, endodermis and pericycle before reaching the vascular cylinder, where they feed in the sieve-tube elements of the primary phloem. In contrast,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Insect-plant interaction; Salivary sheath; Vascular tissue. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000500014 |
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| Hayashi,Adriana Hissae; Appezzato-da-Glória,Beatriz. |
| This work dealt with the anatomy of the underground system in Vernonia grandiflora Less. and V. brevifolia Less. (Vernonieae; Asteraceae), two perennial geophytes, to elucidate their ability to sprout in the Brazilian Cerrado conditions. V. grandiflora, a subshrubby species, possessed a thickened underground system constituted by a xylopodium and many tuberous roots. The xylopodium had stem and root structure and its buds were axillary or originated from the cortical parenchyma proliferation. The tuberous roots produced by this organ were adventitious and accumulated inulin-type fructans mainly in the cortical parenchyma. The thickened underground system of V. brevifolia, an herbaceous species, was a tuberous primary root whose buds originated from the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bud; Tuberous root; Xylopodium; Fructan; Cerrado. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700009 |
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| Lombardi,Simone Pacheco; Passos,Ilene Ribeiro da Silva; Nogueira,Maria Cristina Stolf; Appezzato-da-Glória,Beatriz. |
| Different concentrations of 6-benzyladenine (6-BA) were used in vitro to induce buds in three types of explants: leaf discs, root segments and the seedling itself obtained from in vitro seed germination of Passiflora cincinnata Mast. The 0.5 mg.L -1 6-BA concentration was most suitable for all the three explants, however, bud formation time and means (direct/indirect) were different for each type of explant. In seedlings used as explants, it had shoot regeneration from the primary root. Histological events leading to bud formation via meristemoids were described. The origin was indirect in leaf discs, with callus formation in subepidermal cells of the chlorophyll parenchyma layers. In root segments and in seedling roots, the buds were formed directly in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomical; Organogenesis; 6-benzyladenine; Passionfruit. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000200009 |
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| Marques,João Paulo Rodrigues; Freitas-Astúa,Juliana de; Kitajima,Elliot Watanabe; Appezzato-da-Glória,Beatriz. |
| O objetivo deste trabalho foi apresentar a descrição anatômica dos tecidos lesionados pelo Citrus leprosis virus do tipo citoplasmático (CiLV-C), em ramos e folhas de laranjeira-doce (Citrus sinensis (L.) Osbeck) 'Pêra', e fornecer dados para a compreensão das interações entre o vírus e a planta hospedeira. Tecidos que apresentavam lesões foram seccionados em micrótomo rotativo (5-7 µm de espessura) e, posteriormente, as lâminas foram coradas e montadas em resina sintética. Nas análises realizadas no microscópio eletrônico de varredura, as amostras, depois de fixadas, foram imersas em glicerina 30% e, em seguida, criofraturadas, desidratadas em série etílica, secadas ao ponto crítico de CO2, e cobertas com uma delgada camada de ouro. As lesões foliares se... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus sinensis; Citrus leprosis virus; Histopatologia; Ductos gomosos traumáticos. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007001100003 |
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| Martins,Raphael Gonçalves; Martins,Maria Bernadete Gonçalves; Silva,João Marcelo; Pereira,Marcelo Andrade; Appezzato-da-Glória,Beatriz; Castro,Paulo Roberto de Camargo e. |
| Thiamethoxam is a systemic insecticide from the neonicotinoid group, nitroguanidin family which affects the nicotinic receptor acetyl choline in the insect membrane, wounding the nervous system and causing the death of the insect. It was used with success in the control of initial pests of several crops. It was considered that thiamethoxam has a bioactivator effect, because in the absence of insects promoted increase in vigor, development and productivity of crops. This work was carried out to verify if thiamethoxam causes histological changes in sugarcane roots. In this work, it was used optical microscopy, images arrest, tissue biometrics and statistical analysis, in young roots of sugarcane RB 83 5486 after the treatments with different thiamethoxam... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Anatomy; Root system. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001100005 |
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| Mello,Marcia O.; Melo,Murilo; Appezzato-da-Glória,Beatriz. |
| Plant regeneration was achieved from cells of callus induced from hypocotyl segments of Bauhinia forficata on half strength Murashige and Skoog culture medium supplemented with several concentrations of BAP. Within 40 days of culture shoot buds formation was observed on callus surface. Calli were then transferred to a same composition culture medium without plant growth regulator in order to induce shoot elongation. Histological studies indicated that in vitro plant regeneration in B. forficata occurred through indirect organogenesis. Meristemoids consisting of small cells with dense cytoplasm and prominent nuclei were randomly distributed throughout the callus surface indicating early stages of shoot bud differentiation. Shoots developed de novo from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tissue culture; Organogenesis; Anatomy. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000400013 |
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| Registros recuperados: 26 | |
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