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Anatomia foliar de Eugenia brasiliensis Lam. (Myrtaceae) proveniente de áreas de restinga e de floresta
Donato, Ana Maria;Morretes, Berta Lange de;
Revista Brasileira de Farmacognosia , 2007, DOI: 10.1590/S0102-695X2007000300018
Abstract: the present paper presents the foliar anatomy of eugenia brasiliensis lam. the essential oils produced by this species present anti-reumathic, diuretic and anti-inflammatory properties and show activity against tripanosoma cruzi. this study was carried out by comparison between leaves developed in restinga and forest areas, in order to register the main differences in the structure of this organ related to environmental conditions. anatomically, the leaf of e. brasiliensis is hipostomatic, glabrous, with dorsiventral mesophyll, whit tendency towards the isobilateral type. thickness of the cuticle and cutinized wall is noteworthy. in sub-epidermical position, there are many secretory cavities that produce essential oils, in both sides of the foliar blade. in the spongy parenchyma there are calcium oxalate druses crystals. e. brasiliensis leaves developed in restinga area present, in relation to that proceeding from forest, a larger amount of secretory structures, a higher ergastic substances concentration, thicker cuticle and foliar blade, more abundant stomata, a more compact mesophyll, sclerenchyma fibers and xilem elements with a deeper lignification and a greater development of the vascular system. the data obtained in this research suggest that the choice of the area where e. brasiliensis should be collected is important, because in restinga area it presents a greater production of essential oils and other substances associated with therapeutic effects.
Varia o na estrutura e na composi o de Bromeliaceae em cinco zonas de restinga no Parque Nacional da Restinga de Jurubatiba, Macaé, RJ
COGLIATTI-CARVALHO LUCIANA,FREITAS ANDRé FELIPPE NUNES DE,ROCHA CARLOS FREDERICO DUARTE DA,VAN SLUYS MONIQUE
Brazilian Journal of Botany , 2001,
Abstract: Estudamos as bromeliáceas do Parque Nacional da Restinga de Jurubatiba, Macaé, RJ, nas cinco diferentes zonas de vegeta o: psamófila halófila reptante (PHR), fechada pós-praia (FPP), arbustiva aberta de Clusia (AAC), arbustiva aberta de ericácea (AAE) e mata periodicamente inundada (MPI). Analisamos abundancia, densidade, biomassa, riqueza, diversidade, equitabilidade e similaridade de espécies entre as zonas. Estimamos a quantidade de água reservada no interior das bromélias por zona de restinga e por espécie de bromélia. Em 98 parcelas de 100 m2 (10 X 10 m) cada, registramos as espécies de bromélias, a abundancia de cada espécie e a zona amostrada. A quantidade de água armazenada e a biomassa das bromélias foram estimadas medindo-se o volume de água reservada no vaso e pesando 10 indivíduos por espécie. Encontramos 10 espécies na restinga de Jurubatiba, com densidade total estimada de 10386 ind.ha-1. Na zona PHR, n o ocorreu nenhuma espécie de bromélia. Na FPP, ocorreu a maior biomassa total (7721,2 kg.ha-1), sendo Bromelia antiacantha a mais abundante e com maior biomassa (1366,5 kg.ha-1). Na AAE, ocorreu a maior densidade total (15725 ind.ha-1), diversidade (H' = 2,358), equitabilidade (0,786) e quantidade de água reservada no interior de bromélias (3294,8 L.ha-1). Na MPI, Aechmea bromeliifolia foi a mais abundante, sendo exclusiva desta zona. A maior similaridade ocorreu entre AAC e AAE (88,9%). Concluímos que a estrutura e a composi o de Bromeliaceae da restinga de Jurubatiba variam fortemente entre as zonas estudadas, com cada zona possuindo um conjunto particular de espécies com diferentes distribui es de abundancia.
Varia??o na estrutura e na composi??o de Bromeliaceae em cinco zonas de restinga no Parque Nacional da Restinga de Jurubatiba, Macaé, RJ
COGLIATTI-CARVALHO, LUCIANA;FREITAS, ANDRé FELIPPE NUNES DE;ROCHA, CARLOS FREDERICO DUARTE DA;VAN SLUYS, MONIQUE;
Brazilian Journal of Botany , 2001, DOI: 10.1590/S0100-84042001000100001
Abstract: we studied the bromeliads at the jurubatiba national park in five vegetation zones: psamophilous halophilous creeper vegetation (phr); closed rear beach (fpp); open shrubby clusia (aac); open shrubby ericaceae (aae) and temporarily flooded forest (mpi). we sampled 98 plots of 100 m2 (10 x 10 m) recording the bromeliad species and abundance, density, mass, richness, species diversity, evenness, and similarity among the zones. we estimated the amount of water reserved inside the bromeliads in each zone and by bromeliad species. we found a total of ten bromeliad species at the jurubatiba national park that occurred differently along the vegetation zones, with a total density of 10386 ind.ha-1. no bromeliads were found in the phr zone. the fpp zone had the highest total mass (7721.2 kg.ha-1) and bromelia antiacantha was the most abundant, having the highest mass (1366.5 kg.ha-1). the aae zone had the highest total bromeliad density (15725 ind.ha-1), the highest bromeliad diversity (h?= 2.358), evenness (0.786) and amount of water reserved inside bromeliads (3294.8 l.ha-1). in the mpi zone, aechmea bromeliifolia was the most abundant, being found exclusively in this zone. the highest similarity occurred between zones aac and aae (88.9%). we conclude that the structure and composition of the bromeliads at the jurubatiba national park varied consistently among the vegetation zones of the restinga, and each zone is characterised by a different set of dominant bromeliads and different abundance distribution.
Composi??o, abundancia e notas sobre a ecologia de espécies de larvas de lepidópteros associadas a cinco espécies de plantas hospedeiras no Parque Nacional da Restinga de Jurubatiba, RJ
Monteiro, Ricardo F.;Macedo, Margarete V.;Nascimento, Milena de S.;Cury, Rafael S. F.;
Revista Brasileira de Entomologia , 2007, DOI: 10.1590/S0085-56262007000400012
Abstract: in order to describe the species composition, temporal occurrence and ecological aspects of larvae associated with five plant species: erythroxylum ovalifolium and e. subsessile (erythroxylaceae), manilkara subsericea (sapotaceae), protium icicariba and p. heptaphyllum (burseraceae), 1.680 plants were bimonthly surveyed from july of 2003 to august of 2005 in the parque nacional da restinga de jurubatiba (pnrj). thirty two species of lepidoptera were reared from these five host plants, and the most abundant four species belonged to the elachistidae. manilkara subsericea showed the greatest number of lepidoptera species associated, 14 species, followed by e. ovalifolium (10 species), p. icicariba (seven species), e. subsessile (six species) and p. heptaphyllum (two species). only one out of the 32 species of lepidoptera was gregarious and 56% used any kind of shelter to get food or for defence. six lepidoptera species (27%) were polyphagous, three (14%) oligophagous and 13 (59%) had just only one host plant species recorded. the most abundant species of moths exhibitted two reproductives periods in the year, predominantly in winter and autumn. abiotic factors, such as strong insolation during spring and summer in the open scrub vegetation of restinga, may be very important in producing this temporal pattern of insect reproduction, but we cannot neglect biotic factors like natural enemies.
Insetos fitófagos associados ao murici da praia, Byrsonima sericea (Malpighiaceae), na Restinga de Jurubatiba (RJ)
Flinte, Vivian;Araujo, Cristina Oliveira;Macedo, Margarete Valverde de;Monteiro, Ricardo Ferreira;
Revista Brasileira de Entomologia , 2006, DOI: 10.1590/S0085-56262006000400012
Abstract: this work aimed to investigate the composition, abundance and some behavioral aspects of phytophagous species associated with "murici da praia", byrsonima sericea (malpighiaceae), in the national park of restinga de jurubatiba, rio de janeiro state, brazil. during 14 months, from april 2003 to may 2004, bimonthly surveys were conducted on 120 plants, while observations on b. sericea insects were made since november 2000. an overall of 45 associated insect species were found, being 20 exophytic lepidopteran caterpillars, 17 exophytic coleoptera, four leaf miners and four galling species. lius sp. (buprestidae), a leaf miner beetle, was the most abundant and frequent species, followed by the caterpillar gonioterma indecora (elachistidae). a comparison between lepidopteran caterpillars on b. sericea in the restinga and other byrsonima species of the cerrado vegetation showed low insect similarities between these and b. sericea, which also had the lowest species richness. both caterpillars and leaf miners abundance peaked between june and august, prior to the leaf flush, while the abundance of exophytic coleoptera immatures increased simultaneously with leaf production. possible explanations for the temporal distribution patterns of insects on b. sericea are discussed and a brief description of the ecological aspects is given for the main identified phytophagous insect species.
Actividad antioxidante in vitro de extractos de tallos de Polygala sp. In vitro antioxidant activity of extracts from Polygala sp. stems
Miguel A Puertas-Mejía,Jhon D Ríos-Salazar,Jairo A Sáez-Vega
Revista Cubana de Plantas Medicinales , 2009,
Abstract: INTRODUCCIóN: desde hace mucho tiempo, el empleo de extractos naturales con propiedades terapéuticas ha sido de gran importancia para el control de muchas enfermedades en humanos y plantas. Desde el punto de vista medicinal se encuentran bajo estudio algunos reportes sobre la actividad biológica de la especie Polygala sp. Lo anterior permite suponer que esta planta puede ser una fuente promisoria de compuestos con una alta actividad antioxidante. OBJETIVO: aislar, identificar y evaluar la actividad antioxidante de extractos y algunos de sus componentes. MéTODOS: tallos secos y pulverizados de Poygala sp. fueron sometidos a percolación con metanol y diclorometano; sus respectivos extractos se sometieron a cromatografía en columna y 2 compuestos fueron aislados e identificados por espectroscopia de resonancia magnética nuclear. El potencial antioxidante se determinó sobre la base de la capacidad de atrapamiento del radical estable 2,2-difenil-1-picrilhidrazilo (DPPH·, 2-2-diphenyl-1-picrylhydrazyl). RESULTADOS: el estudio de la composición química de los extractos de los tallos permitió la identificación de 2 lignanos de tipo 2,7′-ciclolignanos-9′-olidos, conocidos como a- y b-peltatina. CONCLUSIONES: los datos presentados en este estudio demostraron que todas las muestras evaluadas poseen propiedades antioxidantes, lo cual soporta el uso tradicional de Polygala spp. para el tratamiento de diferentes enfermedades. INTRODUCTION: from long time ago, the use of natural extracts with therapeutical properties has been very important for control of many human and plant diseases. From the medicinal point of view some reports are studied in relation to biological activity of Polygala sp. species. It entails that this plant may be a promissory source of compounds having a high level of antioxidant activity. OBJECTIVE: to isolate, identify and assess the antioxidant extracts activity and of some of its constituents. METHODS: dried and pulverized stems of Poygala sp. underwent a percolation with methanol and dichloromethane; respective extracts underwent a column chromatography and two compounds were isolated and identified by nuclear magnetic resonance spectroscopy. Antioxidant potential was determined on the base of trapping ability of stable radical 2,2-diphenyl -1-picrylhydraziyl. RESULTS: study of chemical composition of stem extracts allowed us to identify two lignins type 2,7-cyclolignans-9 olides, identified as a- and b-peltatin. CONCLUSIONS: data from this study demonstrate that all assessed samples have antioxidant properties supporting the traditional use
Duas novas espécies de Polygala (Polygalaceae) da regi?o da Chapada dos Veadeiros, GO, Brasil
Pastore, José Floriano Barêa;Marques, Maria do Carmo Mendes;
Acta Botanica Brasilica , 2009, DOI: 10.1590/S0102-33062009000200016
Abstract: two new species of polygala l. subgenus polygala, endemic to the chapada dos veadeiros range, goiás (brazil), are described as polygala suganumae and p. patens, illustrated, and their morphology is compared to related species
Actividad antioxidante in vitro de extractos de tallos de Polygala sp.
Puertas-Mejía,Miguel A; Ríos-Salazar,Jhon D; Sáez-Vega,Jairo A;
Revista Cubana de Plantas Medicinales , 2009,
Abstract: introduction: from long time ago, the use of natural extracts with therapeutical properties has been very important for control of many human and plant diseases. from the medicinal point of view some reports are studied in relation to biological activity of polygala sp. species. it entails that this plant may be a promissory source of compounds having a high level of antioxidant activity. objective: to isolate, identify and assess the antioxidant extracts activity and of some of its constituents. methods: dried and pulverized stems of poygala sp. underwent a percolation with methanol and dichloromethane; respective extracts underwent a column chromatography and two compounds were isolated and identified by nuclear magnetic resonance spectroscopy. antioxidant potential was determined on the base of trapping ability of stable radical 2,2-diphenyl -1-picrylhydraziyl. results: study of chemical composition of stem extracts allowed us to identify two lignins type 2,7-cyclolignans-9 olides, identified as a- and b-peltatin. conclusions: data from this study demonstrate that all assessed samples have antioxidant properties supporting the traditional use of polygala spp. for the treatment of different diseases.
Cupins de duas florestas de restinga do nordeste brasileiro
Vasconcellos, Alexandre;Mélo, Ana Cerilza S.;Segundo, Eusébio de M. Vasconcelos;Bandeira, Adelmar G.;
Iheringia. Série Zoologia , 2005, DOI: 10.1590/S0073-47212005000200003
Abstract: the structure of termite communities was evaluated at two restinga forests (a characteristic type of vegetation occurring on nutrient-poor sandy soils along the brazilian coastline), located in the municipalities of mataraca and cabedelo, state of paraíba. a standardised sampling protocol was used in both sites. twenty-five species were found, 19 of them at mataraca and 15 at cabedelo, with just 9 species in common to both sites. species of nasutitermitinae and wood-feeding groups were dominant at both study sites. the low species richness and frequency of humus-feeders species, and species of the subfamily apicotermitinae as well, seem to be related to the restinga soil properties. the conspicuous nest (all arboreal) builders were armitermes holmgreni snyder, 1926, microcerotermes exiguus (hagen, 1858), m. strunckii (s?rensen, 1884), nasutitermes corniger (motschulsky, 1855), n. ephratae (holmgren, 1910), and n. macrocephalus (silvestri, 1903). the termite fauna of the studied restinga was composed by typical species of other brazilian ecosystems, such as atlantic forest and cerrado, being in agreement with the general pattern of distribution set up by the plant communities and the fauna of vertebrates described elsewhere for other brazilian restingas.
Bromeliaceae species from coastal restinga habitats, Brazilian states of Rio de Janeiro, Espírito Santo, and Bahia.  [PDF]
Cogliatti-Carvalho, L.,Rocha-Pess?a, T. C.,Nunes-Freitas, A. F.,Rocha, C. F. D.
Check List , 2008,
Abstract: Bromeliaceae is one of the most representative plant families in restinga habitats. We analyzed the speciesrichness and composition of Bromeliaceae in 13 restinga habitats along the Brazilian coast. We found a total of 41species distributed along the restinga habitats studied. The restinga of Praia do Sul, in the state of Rio de Janeiro, hadthe highest number of species (15), whereas the restinga of Abaeté, in the state of Bahia, had the lowest (4). Our dataare suggestive that the Doce River may represent the limit of distribution for some bromeliad species, with some speciesoccurring only south of that river and others occurring only to the north of it. The differences in Bromeliaceae speciescomposition among restinga habitats probably are not only due to differences in local environmental conditions, butalso due to the geographic distribution pattern of each species and to the present degree of disturbance at each restinga.
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