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| Registros recuperados: 2.719 | |
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| ROSSETTI,DILCE F.; MOULATLET,GABRIEL M.; TUOMISTO,HANNA; GRIBEL,ROGÉRIO; TOLEDO,PETER M.; VALERIANO,MÁRCIO M.; RUOKOLAINEN,KALLE; COHEN,MARCELO C.L.; CORDEIRO,CARLOS L.O.; RENNÓ,CAMILO D.; COELHO,LUIZ S.; FERREIRA,CARLOS A.C.. |
| Abstract: What controls the formation of patchy substrates of white sand vegetation in the Amazonian lowlands is still unclear. This research integrated the geological history and plant inventories of a white sand vegetation patch confined to one large fan-shaped sandy substrate of northern Amazonia, which is related to a megafan environment. We examined floristic patterns to determine whether abundant species are more often generalists than the rarer one, by comparing the megafan environments and older basement rocks. We also investigated the pattern of species accumulation as a function of increasing sampling effort. All plant groups recorded a high proportion of generalist species on the megafan sediments compared to older basement rocks. The vegetation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonian wetlands; Geological history; Late Pleistocene-Holocene; Megafan sedimentary dynamics; White sand vegetation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700503 |
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| Souza,Allyson S. de; Dias Júnior,Eurico A.; Galetti Jr,Pedro M.; Machado,Erik G.; Pichorim,Mauro; Molina,Wagner F.. |
| The Epinephelidae form a group of species of high biological and economical interests. It´s phylogeographic patterns are not well known especially the distributed populations in the western region of the Atlantic Ocean. Among the representatives is a small species called Cephalopholis fulva, Coney, which presents a wide geographical distribution, polychromia, hermaphroditism and is quickly becoming a large target for the exploration of commercial fishing. The genetic and historical demography were obtained through the partial sequence analysis of Control Region from six locations on the coastline of Brazil from the northeast coast to the southwest coast, including the oceanic islands of Rocas Atoll and Fernando de Noronha Archipelago. The analyzed samples... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: D-loop; Glaciation; MtDNA; Panmixia; Phylogeography. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100121 |
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| NADIA,TARCILA L.; MACHADO,ISABEL C.. |
| Rhizophora mangle is considered as a self-compatible mangrove, and is pollinated by wind and insects. However, there is no information about fruit production by autogamy and agamospermy and on the foraging behavior of its flower visitors. Hence, the present study analyzed the pollination and reproductive systems of R. mangle in a mangrove community in northern Pernambuco, Brazil. Floral morphology, sequence of anthesis, and behavior of flower visitors were described; the proportion of flowers that resulted in mature propagules was also recorded. Autogamy, agamospermy, and wind pollination tests were performed, and a new anemophily index is proposed. The flowers of R. mangle are hermaphrodite, protandric, and have high P/O rate. Flies were observed on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anemophily index; Autogamy; Entomophily; Mangrove; Red mangrove. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100229 |
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| Novaes,Fernanda da S.; Callado,Cátia H.; Pereira-Moura,Maria Verônica L.; Lima,Helena R.P.. |
| This paper aimed to characterize the anatomical structure of the wood of specimens of Mollinedia glabra (Spreng.) Perkins growing in two contiguous formations of restinga vegetation at Praia Virgem, in the municipality of Rio das Ostras, RJ. Both the Open Palmae (OPS) and the Sandy Strip Closed Shrub (SSCS) formations are found in coastal regions that receive between 1,100 and 1,300 mm of rainfall per year. Sapwood samples were collected in both formations. Typical anatomical features for this species include: solitary vessels, radial multiples or clusters elements, that are circular to angular in outline, 5-15 barred scalarifor perforation plates, ood parenchya scanty, septate fiber-tracheids, and wide multiseriate rays with prismatic crystals.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mollinedia glabra; Monimiaceae; Restinga; Wood anatomy. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400014 |
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| NOGUEIRA,AMANDA C.; SEHN,GEORGIA A.R.; REBELLATO,ANA PAULA; COUTINHO,JANCLEI P.; GODOY,HELENA T.; CHANG,YOON K.; STEEL,CAROLINE J.; CLERICI,MARIA TERESA P.S.. |
| ABSTRACT Yellow sweet potato is mostly produced by small farmers, and may be a source of energy and carotenoids in the human diet, but it is a highly perishable crop. To increase its industrial application, yellow sweet potato flour has been produced for use in bakery products. This study aimed to evaluate the technological quality and the carotenoids content in sweet breads produced with the replacement of wheat flour by 0, 3, 6, and 9% yellow sweet potato flour. Breads were characterized by technological parameters and β-carotene levels during nine days of storage. Tukey’s test (p<0.05) was used for comparison between means. The increase in yellow sweet potato flour concentrations in bread led to a decrease of specific volume and firmness, and an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Baking; Carotenoids; Tubers; Healthiness; Agribusiness. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100283 |
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| SPINELLI,GUSTAVO R.; RONDEROS,MARÍA M.; DONATO,MARIANO; SIRI,AUGUSTO. |
| ABSTRACT A new monotypic genus and species of predaceous midge from the southernmost area of the Argentinean Yungas, Yungahelea australis Spinelli and Ronderos, is described and illustrated from male and female adults. It belongs to a group containing the Ceratopogonini genera Parabezzia Malloch, Diaphanobezzia Ingram and Macfie, Spinellihelea Borkent, Grogan and Picado, Leptohelea Wirth and Blanton, and Fittkauhelea Wirth and Blanton. Phylogenetic interpretation indicates that Yungahelea is the sister group of Spinellihelea or the clade composed by Parabezzia and Diaphanobezzia. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diptera; Ceratopogonidae; Yungas; New genus; Phylogeny. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100137 |
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| LEAL,DALILA T.; FONTES,GLEIDE G.; VILLA,JULIA K.D.; FREITAS,RODRIGO B.; CAMPOS,MATEUS G.; CARVALHO,CAMILO A.; PIZZIOLO,VIRGINIA R.; DIAZ,MARISA A.N.. |
| Abstract: This study investigated the ability of formulation containing Zingiber officinale (ginger) to reverse health changes promoted by unhealthy diet in Wistar rats. Five compounds from the gingerol family and three from the shogaol family were identified in the chromatographic analyzes of the extract. The animals were fed a combination of unhealthy foods, the cafeteria diet, which promoted increases in body weight, hepatocyte nucleus area, total hepatocyte area and liver fat accumulation, as well as reduced hepatic glutathione S-transferase concentration, compared to the control group, which received commercial chow. The treatment with ginger improved all these results, highlighting the reduction of 10% of body weight and 66% of the total area of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cafeteria diet; Gingerol; Nonalcoholic fatty liver disease; Oxidative stress; Shogaol; Zingiber officinale. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700801 |
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| BRAGA,ELISABETE S.; AZEVEDO,JULIANA S.; KUNIYOSHI,LEONARDO; FÁVARO,DÉBORAH I.T.. |
| Abstract: The human impact on estuarine regions results in an increasing concentration of trace elements in the environment, exposing aquatic organisms. In this study, Zn, Co, Cr, and As were determined in the muscle tissue of some fish species from Santos-São Vicente (SSV), a recognized polluted region, and in the Cananeia estuary (CAN). Genotoxicity was also determined for the evaluation of the chronic effect on ichthyofauna, to enlarge the bank of environmental data regarding the effects of pollution, and to suggest other fish bioindicator species that may contribute to monitoring programs. The obtained data showed a similar profile of an accumulation of Co and Zn in Micropogonias furnieri and Chaetodipterus faber, where: Santos Bay > CAN > inner... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trace elements; Nuclear abnormalities in erythrocytes; Protected areas; South atlantic; Subtropical estuaries. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700501 |
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| Registros recuperados: 2.719 | |
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