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| Registros recuperados: 128 | |
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| Ferreira,Paulo Henrique Gonçalves; Nunes,Yule Roberta Ferreira; Faria,Maurício Lopes; Brandão,Murilo Malveira; Costa,Cibele Stramare Ribeiro; Valério,Henrique Maia; Melo,Geraldo Aclécio; Pimenta,Marcio Antonio Silva. |
| ABSTRACT Seed predation is a natural phenomenon that can occur either before or after dispersal and can significantly reduce the economic value and reproductive potential of plants. The babassu palm (Attalea vitrivir, Arecaceae) is important to rural communities that extract oil from its fruits for a wide variety of uses. We evaluated the predation and germination of A. vitrivirseeds in Pandeiros River Environmental Protection Area (EPA-Pandeiros) in Minas Gerais State, Brazil. Sixty individual plants were evaluated to determine their fruiting patterns. Seed predation and germination were evaluated in the natural environment for eight months for fruits divided into two treatments: scarified and intact. Germination of fruits submitted to these same... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arecaceae; Attalea vitrivir; Babassu palm; Fruit; Seed germination; Seed predation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400658 |
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| Peres,Marize Terezinha Lopes Pereira; Lopes,José Rodrigo Regis; Silva,Cristiane Bezerra da; Cândido,Ana Carina Silva; Simionatto,Euclésio; Cabral,Márcia Regina Pereira; Oliveira,Rita Machado; Facco,Janaina Thomasi; Cardoso,Cláudia Andréa Lima; Simas,Pedro Henrique. |
| We investigated antioxidant capacity, phenolic content and phytotoxic effects in seven species of fruit native to Brazil: Acrocomia aculeata, Hymenaea stigonocarpa, Tamarindus indica, Byrsonima intermedia, Psidium firmum, Myrciaria cauliflora and Ficus obtusifolia. Phytotoxic effects were assessed from crude ethanol extracts and semipurified fractions. In four of the seven fruits, total phenolic content, as determined by Folin-Ciocalteu assay, was higher in the peel than in the pulp. We found that total phenolic content correlated significantly with antioxidant capacity. High-performance liquid chromatography with diode array detection revealed the presence of the flavonoids quercetin and rutin in some fruits. We also evaluated the allelopathic effects of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Fruit; Phytotoxic effects; Antioxidant capacity; Total phenolic content. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400024 |
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| Mourão,Káthia Socorro Mathias; Marzinek,Juliana. |
| Aspects of the morpho-anatomy of developing fruits and seeds of Clusia parviflora are presented and discussed as a continuation of the study of these organs in Clusiaceae. The fruit is a septifrage capsule; the suberized exocarp is derived from the external epidermis of the ovary. The mesocarp originates from the ovarian mesophyll and remains parenchymal in nature. The endocarp is derived from the internal epidermis of the ovary and the endocarp is derived from the inner ovary epidermis as well as from three to four adjacent subepidermal layers, with tangentially elongated cells which become lignified and contribute to fruit dehiscence. The ovules are anatropous, bitegmic, with an endothelium, and give rise to equally anatropous seeds. The exotesta has... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Clusia parviflora; Clusiaceae; Fruit; Seed. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062009000300020 |
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| Andrade, Patrícia Barreto de; Universidade Federal do Ceará; Freitas, Breno Magalhães; Universidade Federal do Ceará; Rocha, Epifânica Emanuela de Macêdo; Universidade Federal do Ceará; Lima, José Antônio de; Universidade Federal do Ceará; Rufino, Leonardo Lopes; Universidade Federal do Ceará. |
| This study aimed to investigate the floral biology and pollination requirements of sesame (Sesamum indicum L.), cultivar CNPA G2. The study was carried out at Barbalha, State of Ceará, and consisted of two phases: floral biology and pollination requirements. Flowers were observed as for time of anthesis, lifespan and stigma receptivity, and were applied the following pollination treatments: open pollination, hand cross-pollination, hand self-pollination, pollination restricted with tulle bags and pollination restricted with paper bags. Significant differences (p < 0.05) were detected between treatments for the number of fruits harvested 30 days after pollination. It was shown that the sesame plant presents a mixed-pollination system, because it can... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2 self-pollination; Cross pollination; Pollinators; Fruit. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21838 |
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| Juliá,Juan P.; Peris,Salvador J.. |
| The births of brown brocket deer ( Mazama gouazoubira) in a secondary lower montane forest called "yunga" in northwestern Argentina were compared with rainfall. Analyses were performed with rainfall and flower-fruit fall in an attempt to determine the possible importance of these seasonal variables in birthing. The births were not directly correlated with rainfall, but rather with the flower and fruit fall of exotic plant species. This may be related to favor the development of fawns, which eat the new and more digestible plant parts, accessible one month after their births.The non-seasonal births observed around the year could be related to the selection by the deer of some plant species that have been introduced into the region ( Prunus, Morus and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Argentina; Birth phenology; Fruit; Rainfall. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300010 |
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| MIGUEL,LAILA M.; SOBRADO,SANDRA V.; JANSSENS,STEVEN; DESSEIN,STEVEN; CABRAL,ELSA L.. |
| ABSTRACT Diacrodon is a monotypic genus of the tribe Spermacoceae (Rubiaceae), endemic to northeastern Brazil. Diacrodon compressus is frequently misidentified with a two lobed calyx species of Borreria, B. verticillata. Traditionally, in Spermacoceae the fruit type was considered a diagnostic character among the genera. In this sense, D. compressus presents a strongly compressed, one seeded and indehiscent fruit (vs. globose, two seeded and dehiscent fruit in B. verticillata). In this work, we address two objectives: evaluate the systematic position and determine the identity of Diacrodon in respect to other taxa. Molecular analyses using ITS and ETS indicate that D. compressus is strongly related to other species of Borreria. The morphological results... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Flower; Fruit; ITS-ETS dataset; Morphology; Pollen; Seed. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401397 |
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| Marzinek,Juliana; Oliveira,Denise M.T.. |
| The ontogeny of cypselae and their accessory parts were examined using light and scanning electron microscopy for the species Campuloclinium macrocephalum, Chromolaena stachyophylla, Mikania micrantha, Praxelis pauciflora, Symphyopappus reticulatus, and Vittetia orbiculata, some of these being segregated from the genus Eupatorium. A layer of phytomelanin observed in the fruit appears to be secreted by the outer mesocarp into the schizogenous spaces between the outer and inner mesocarp; its thickness was observed to vary among the different species examined. The bristles of the pappus are vascularized, except in M micrantha, and have cells that are superficially projected and arranged acropetally; in S. reticulatus some of the projections are retrorse and a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Asteraceae; Carpopodium; Fruit; Pappus; Phytomelanin. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000200004 |
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| MEISEL,LEE; FONSECA,BEATRIZ; GONZÁLEZ,SUSANA; BAEZA-YATES,RICARDO; CAMBIAZO,VERONICA; CAMPOS,REINALDO; GONZALEZ,MAURICIO; ORELLANA,ARIEL; RETAMALES,JULIO; SILVA,HERMAN. |
| Prunus persica has been proposed as a genomic model for deciduous trees and the Rosaceae family. Optimized protocols for RNA isolation are necessary to further advance studies in this model species such that functional genomics analyses may be performed. Here we present an optimized protocol to rapidly and efficiently purify high quality total RNA from peach fruits (Prunus persica). Isolating high-quality RNA from fruit tissue is often difficult due to large quantities of polysaccharides and polyphenolic compounds that accumulate in this tissue and co-purify with the RNA. Here we demonstrate that a modified version of the method used to isolate RNA from pine trees and the woody plant Cinnamomun tenuipilum is ideal for isolating high quality RNA from the... |
| Tipo: Journal article |
Palavras-chave: CDNA library; Fruit; Fruit trees; Functional genomics; Peach; Polysaccharides; Prunus persica; RNA isolation; Rosaceae; RT-PCR. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000100010 |
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| Santana,Audirene; Kurozawa,Louise; Oliveira,Rafael; Park,Kil. |
| The objective of this work was to optimize the spray drying of pequi pulp using maltodextrin as carrier agent and Tween 80 as surfactant agent. A central composite rotatable design was used to evaluate the influence of inlet air temperature (140 to 200°C), maltodextrin (15 to 30%) and surfactant (0 to 5%) concentration on the process performance and physicochemical and nutritional properties of the dried powdered pulp. The dependent variables were process yield (27.4 - 51.7%), outlet air temperature (106.5 - 135°C), energetic efficiency (29.9 - 44.8%), moisture content (0.25 - 1.43%), water activity (0.09 to 0.21), hygroscopicity (9.1 - 12.1 g adsorbed moisture/100g dry matter), vitamin C content (129.8 - 303.0 mg/g solids pequi) and total carotenoids... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fruit; Tween 80; Powder property; Screening design; Microscopy. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100500 |
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| Souza,Luiz Antonio de. |
| This study analyzed the morphology and anatomy of the Cordia trichotoma (Vell.) Arrab. ex I. M. Johnst diaspore. The objectives were: the structural analysis of the calyx and corolla that persisted in the ripe fruit and acted in the anemocoric dispersion process; the vascularization of the gynoecium for better understanding of the carpel/locule number of the ovary; nectary structure; and the anatomical analysis of the developmental pericarp and seed for better definition of the fruit type. The results showed that the perianth had aerenchyma and the ovary was 2- 4- locule forming endothelium and false septum. The fruit was drupoid nuculanium and the seed was exotestal. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Perianth; Nectary; Fruit; Seed. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000400014 |
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| MOURÃO,K. S. M.; BELTRATI,C. M.. |
| Morphological, structural and developmental features of fruits and seeds of Vismia guianensis (Aubl.) Choisy. are here presented, with the purpose to elucidate their structure and to contribute to taxonomical and ecological studies of the family. The fruit is a berry and the "rind" is constituted by the exocarp and by the subepidermal layers which constitute the mesocarp. The reddish pulp, rich in starch, is constituted by the parenchymatic mesocarp, with branched secretory ducts and vascular bundles, joined with the endocarp, which arises from a ventral meristem. The bitegmic, anatropous ovules, provided by the endothelium, develop into anatropous, bitegmic and exalbuminous seeds. The reddish uniseriate testa shows phenolic contents. The tegmen becomes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clusiaceae; Fruit; Seed; Vismia; Anatomy. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000100019 |
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| Registros recuperados: 128 | |
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