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Search Results: 1 - 10 of 28511 matches for " Adelita Aparecida;Souza "
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Flower morpho-anatomy in Epiphyllum phyllanthus (Cactaceae)
Garcia de Almeida, Odair José;Sartori-Paoli, Adelita Aparecida;Souza, Luiz Antonio de;
Revista mexicana de biodiversidad , 2010,
Abstract: the aim of this contribution was to analyze the morpho-anatomical floral structure of epiphyllum phyllanthus (l.) haw., a widely distributed species across south america, occurring in humid forests as an epiphyte. flowers and flower buds were collected in maringá, paraná state, brazil, fixed, processed, and analyzed under light microscope and scanning electron microscope. the flower is sessile and epigynous with a well-developed hypanthium. all flower whorls have uniseriate epidermis. secretory cavities containing mucilage and calcium oxalate crystals occur throughout the floral parenchymatous tissue. the androecium has many stamens with tetrasporangiate and bithecal anthers. the wall of the young anther is formed by epidermis, endothecium, a middle layer, and binucleate secretory tapetum that eventually becomes uninucleate. the gynoecium is syncarpous with 9-10 carpels, pluriovulate, and with parietal placentation. the ovary has inverted vascular bundles in a similar pattern as in pereskia. the nectariferous region occurs on the inner surface of the hypanthium. the stigma has 9-10 lobes with a secretory epidermis. the ovules are circinotropous, bitegmic, crassinucelate, and have long funiculus as in many other cactaceae.
Flower morpho-anatomy in Epiphyllum phyllanthus (Cactaceae) Morfo-anatomía de la flor de Epiphyllum phyllanthus (Cactaceae)
Odair José Garcia de Almeida,Adelita Aparecida Sartori-Paoli,Luiz Antonio de Souza
Revista mexicana de biodiversidad , 2010,
Abstract: The aim of this contribution was to analyze the morpho-anatomical floral structure of Epiphyllum phyllanthus (L.) Haw., a widely distributed species across South America, occurring in humid forests as an epiphyte. Flowers and flower buds were collected in Maringá, Paraná State, Brazil, fixed, processed, and analyzed under light microscope and scanning electron microscope. The flower is sessile and epigynous with a well-developed hypanthium. All flower whorls have uniseriate epidermis. Secretory cavities containing mucilage and calcium oxalate crystals occur throughout the floral parenchymatous tissue. The androecium has many stamens with tetrasporangiate and bithecal anthers. The wall of the young anther is formed by epidermis, endothecium, a middle layer, and binucleate secretory tapetum that eventually becomes uninucleate. The gynoecium is syncarpous with 9-10 carpels, pluriovulate, and with parietal placentation. The ovary has inverted vascular bundles in a similar pattern as in Pereskia. The nectariferous region occurs on the inner surface of the hypanthium. The stigma has 9-10 lobes with a secretory epidermis. The ovules are circinotropous, bitegmic, crassinucelate, and have long funiculus as in many other Cactaceae. El objetivo de esta investigación fue analizar la morfo-anatomía de la flor de Epiphyllum phyllanthus (L.) Haw, especie con distribución amplia en los bosques húmedos de América del Sur como epífita. Se recolectaron flores y botones en Maringá, PR, Brasil, fijados, procesados y analizados con microscopio de luz y con microscopio electrónico de barrido. La flor es sésil, epígina con hipanto desarrollado. Todos los verticilos florales presentan epidermis simple. Cavidades secretoras con mucilago y cristales de oxalato de calcio se encuentran en todo el tejido parenquimático de la flor. El androceo posee muchos estambres, con anteras bitecas y tetraesporangiadas. La pared de la antera joven está formada por epidermis, endotecio, una capa mediana y tapete secretor binucleado, eventualmente uninucleado. El gineceo es sincárpico con 9-10 carpelos, pluriovulado y de placentación parietal y el ovario tiene haces vasculares invertidos, en un patrón similar a Pereskia. La región nectarífera se encuentra en el lado interno del hipanto. El estigma es 9-10 lobado, con epidermis secretora. Los óvulos son circinótropos, bitegumentados, crassinucelados y con funículo largo como en otras Cactaceae.
Morfoanatomia dos órg?os vegetativos de Piper crassinervium H.B. & K. (Piperaceae)
Albiero, Adriana Lenita Meyer;Paoli, Adelita Aparecida Sartori;Souza, Luiz Antonio de;Mour?o, Káthia Socorro Mathias;
Acta Botanica Brasilica , 2005, DOI: 10.1590/S0102-33062005000200013
Abstract: the morphology and anatomy of the vegetative organs of piper crassinervium h.b & k. (jaborandi) are here described with the purpose of contributing to taxonomical and pharmacobotanical studies. the material was analyzed according to usual techniques in these researches. the species is a shrub, with erect and cylindrical stem. the leaves are stipulate and alternate. the main characteristics that can be used in its identification are: cortical parenchyma of the root with sclereids, stem cortex with discontinuous strands of collenchyma, and vascular tissue constituted of two discontinuous circles of collateral vascular bundles; dorsiventral and hypostomatic leaves, with ciclocytic, and tetracytic stomata, and uniseriate hypodermis, but with 1-3 cells layers in midrib; chlorophilian parenchyma contains lipid idioblasts; glandular trichomes occur in uniseriate epidermis of the leaf and idioblasts with small acicular crystals occur in all organs.
Morfoanatomi e desenvolvimento de frutos e sementes de Dodonea viscosa (L.) Jacquin (Sapindaceae)
Paoli, Adelita Aparecida Sartori;Sarti, Janaina;
Revista Brasileira de Sementes , 2008, DOI: 10.1590/S0101-31222008000200005
Abstract: morphological, structural and development features of fruits and seeds of dodonea viscosa (l.) jacquin (sapindaceae) were described and illustrated emphazing the seed coat and embryo.
Caracteriza??o morfológica de frutos, sementes e plantulas de Pseudima frutescens (Aubl.) Radlk. (Sapindaceae)
Paoli, Adelita Aparecida Sartori;Bianconi, André;
Revista Brasileira de Sementes , 2008, DOI: 10.1590/S0101-31222008000200018
Abstract: the present descriptive study aimed to elucidate the morphoanatomical and developmental features of fruits, seeds and seedlings of pseudima frutescens (sapindaceae), which is a tree species. flowers and fruits at different developmental stages were used in the descriptions. a hundred seeds were set in germination boxes (four seeds per box) on filter paper moistened with distilled water and kept at 25+1oc to observe seedling germination and development. the fruit of this species, which has two seeds, is a round obcordate capsule, lobed, reddish-orange on the outside and orange on the inside. the seed exalbuminous, is ovoid, black and shiny; the embryo, occupying all the inside of the seed, has fleshy cotyledons and a short hypocotyl-radicle axis. the seedling is cryptocotyledonary and the germination, which is hypogeal, occurred under light conditions and started from the fifth day after sowing. by the eighth day, the root measured 17mm in length, showing numerous absorbent hairs on its full extent. after 14 days, the epicotyl (slightly green) emerged. the seedling exhibited, after 30 days, two pairs of compound eophylls and, by the sixtieth day, the primary root measured 12cm long with many lateral roots; the epicotyl was 9cm long and had six expanded leaves. in view of the fact that the development of the seedling is considered relatively quick, p. frutescens may be indicated for the use in the recovery of degraded areas.
Epiderme e padr?o de vena??o foliar de espécies de Lauraceae
Moraes, Pedro Luís Rodrigues de;Paoli, Adelita Aparecida Sartori;
Acta Botanica Brasilica , 1999, DOI: 10.1590/S0102-33061999000100008
Abstract: the epidermal and leaf venation pattern of eophylls and nomophylls of ctyptocarya moschata nees, endlicheria paniculata (spreng.) macbride, and ocotea catharinensis mez are described. both c. moschata and o. catharinensis presented a pronounced variation in the rate of ondulation in the anticlinal cell walls as well as in the minor venation of nomophylls. this makes it difficult to use these features for taxonomical purposes.
Anatomy of the pericarp and seed-coat of Lithraea molleoides (Vell.) Engl. (Anacardiaceae) with taxonomic notes
Carmello-Guerreiro, Sandra Maria;Paoli, Adelita Aparecida Sartori;
Brazilian Archives of Biology and Technology , 2005, DOI: 10.1590/S1516-89132005000500013
Abstract: the aim of the present work was to record anatomical data for the fruit and seed of lithraea molleoides (vell.) engl, and compare the results with those for l. brasiliensis and the genera schinus and rhus. the l. molleoides fruit was a drupe with a friable and lignified exocarp. the mesocarp was parenchymatous with large secretory canals associated with vascular bundles. the endocarp consisted of four layers: an outer layer of polyhedral cells with prismatic crystals of calcium oxalate, and three inner layers of sclereids in a palisade arrangement. the ovule was anatropous, unitegmic, and crassinucelate. in the chalazal region, a cup-like zone of tanniniferous parenchymal cells formed the hypostase. the developing seed had a circinotropous-like shape, that originated through curvature of the long, coarse funicle that surrounded the tegument and embryo sac. the ripe seed was endotestal with bar-like thickenings or pittings in the cell walls.
Morfologia e estabelecimento de plantulas de Cryptocarya moschata Nees, Ocotea catharinensis Mez e Endlicheria paniculata (Spreng.) MacBride - Lauraceae
MORAES, PEDRO LUíS RODRIGUES DE;PAOLI, ADELITA APARECIDA SARTORI;
Brazilian Journal of Botany , 1999, DOI: 10.1590/S0100-84041999000500010
Abstract: morphological characteristics of seedling development of c. moschata, o. catharinensis and e. paniculata, both in the wild and in nursery, are described. samples were collected from parque estadual de carlos botelho-sp (24o44' - 24o03's and 47o46' - 48o10'w). c. moschata has a different seedling development pattern from the others with elongated cotyledonary petioles, connate to the hypocotylar region; absence of cataphylls and twist in the hypocotylar region; and the emission of a pair of simultaneous eophylls. o. catharinensis and e. paniculata seedlings have a simultaneous emission of three to five spirally arranged eophylls, on average. in the wild, seedlings of c. moschata were characterized by long periods of latency till the arising of gaps or increased incidence of light, which is evidenced by the lack of juveniles in understore conditions. seedlings of o. catharinensis established in shade, regardless of the presence of gaps for their development, presenting several juveniles in understore. for e. paniculata, there was evidence that this species presented high plasticity, developing in shade as well as in full luminosity conditions, in border areas or large gaps, possibly being a colonizer of disturbed areas.
Morfologia e anatomia da semente de Balfourodendron riedelianum (Engler) Engler - Rutaceae
Silva, Linda Lacerda da;Paoli, Adelita Aparecida Sartori;
Revista Brasileira de Sementes , 2006, DOI: 10.1590/S0101-31222006000100003
Abstract: the morphology and anatomy of the seeds of balfourodendron riedelianum (engler) engler were described and ilustrated, emphazing the seed coat and development. the seeds are ellipsoid, black, anatropous, endotestal with reduced inner integument, exarillate and albuminous. the endosperm has a protein grain and lipid storage. the embryo is dominant, axial, and white, with fleshy cotyledons and has short hipocotyl-radicule axis and small plumule.
Morfologia e anatomia da semente de Esenbeckia grandiflora Mart. (Rutaceae)
Silva, Linda Lacerda da;Paoli, Adelita aparecida Sartori;
Revista Brasileira de Sementes , 2006, DOI: 10.1590/S0101-31222006000200001
Abstract: the morphology and anatomy of the seeds of esenbeckia grandiflora mart. were described and illustrated, emphasizing the seed coat and development. the seeds are ellipsoid to pyramidal, brown, anatropous, mesotestal, without inner integument, exarillate and exalbuminous. the embryo is axial, straight, white, with fleshy cotyledons containing protein and lipid storage and it has a short hipocotyl-radicule axis and small plumule.
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