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| Lima,Sharon Santos de; Tavares,Eliana Schwartz; Moreira,Davyson de Lima; Leitão,Gilda Guimarães; Esquibel,Maria Apparecida. |
| Com o objetivo de selecionar caracteres úteis na identificação de Polygonum acre Kunth var. aquatile Meisn., erva medicinal geralmente comercializada sob a forma de planta fragmentada, e para contribuir para o conhecimento botânico da espécie, descreveu-se sua anatomia e quantificaram-se os fenóis totais, taninos gálicos e condensados. O material foi processado segundo técnicas usuais de anatomia vegetal. Na análise anatômica, a comparação dos resultados com a bibliografia permitiu selecionar os seguintes caracteres como auxiliares à determinação de P. acre: 1) ausência de endoderme bem definida com estrias de Caspary conforme descrito para outras espécies do gênero Polygonum; 2) ócrea com numerosos tricomas pluricelulares e cavidades secretoras... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erva-de-bicho; Farmacognosia; Plantas medicinais; Polygonaceae; Taninos condensados. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000200013 |
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| Marques, Angela Maria Marques Sanches; Universidade Estadual de Maringá; Moscheta, Ismar Sebastião; Universidade Estadual de Maringá. |
| The upper Paraná River floodplain is characterized by the existence of several aquatic and transitional habitats between the aquatic and terrestrial environment, influencing the presence and distribution of aquatic macrophytes. Samples were taken from different places and permanent slides were prepared for analysis and capture of images with the objective of comparing the anatomy of the roots of eight species of emergent aquatic macrophytes. The species feature uniseriate epidermis with narrow and long cells, cortex composed of uniseriate or biseriate exodermis, with or without thickening, aerenchyma with great gaps, uniseriate endodermis, with or without thickening, continuous or interrupted pericycle, and central cylinder with variable number of xylem... |
| Tipo: Estudo anatômico |
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7 Aerenchyma; Root; Alismataceae; Cyperaceae; Polygonaceae; Pontederiaceae Anatomia Vegetal Aerenchyma; Root; Alismataceae; Cyperaceae; Polygonaceae; Pontederiaceae. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5509 |
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| Melo,Efigênia de. |
| O gênero Coccoloba está representado na Amazônia brasileira por 23 espécies: Coccoloba acuminata Kunth, C. arborescens (Vell.) R. A. Howard, C. ascendens Duss ex Lindau, C. brasiliensis Nees & Mart., C. charitostachya Standl., C. conduplicata Maguire, C. coronata Jacq., C. declinata (Vell.) Mart., C. densifrons Mart. ex Meisn., C. excelsa Benth., C. gentryi R. A. Howard, C. latifolia Lam., C. lehmannii Lindau, C. lucidula Benth., C. marginata Benth., C. mollis Casar., C. ovata Benth., C. paraensis Meisn., C. parimensis Benth., C. ramosissima Wedd., C. savannarum Standl., C. striata Benth. e C. tenuiflora Lindau, dentre as quais apenas C. paraensis ocorre exclusivamente na Amazônia brasileira, C. charitostachya, C. conduplicata, C. coronata, C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomia; Polygonaceae; Coccoloba; Amazônia. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672004000400006 |
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| Tsuboy,Marcela Stefanini; Marcarini,Juliana Cristina; Ferreira,Dalva Trevisan; Ferraz,Elisa Raquel Anastácio; Chequer,Farah Maria Drumond; Oliveira,Danielle Palma de; Ribeiro,Lúcia Regina; Mantovani,Mário Sérgio. |
| The common everyday use of medicinal plants is an ancient, and still very widespread practice, whereby the need for studies on their possible toxicity and mutagenic properties. The species Coccoloba mollis has been much used in phytotherapy, mainly in cases involving loss of memory and stress. In order to investigate its genotoxic and mutagenic potential, ethanolic extracts from the leaves and roots underwent Salmonella/microsome assaying (TA98 and TA100 strains, with and without exogenous metabolism - S9), besides comet and micronucleus tests in vivo.There was no significant increase in the number of revertants/plate of Salmonella strains in any of the analyzed root-extract concentrations, although the extract itself was extremely toxic to the Salmonella... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Medicinal plants; Coccoloba mollis; Ames test; In vivo comet assay; In vivo micronucleus assay; Polygonaceae. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300027 |
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| Hu,Yanping; Xie,Xiaolong; Wang,Li; Zhang,Huaigang; Yang,Jian; Li,Yi. |
| To examine whether cultivation reduced genetic variation in the important Chinese medicinal plant Rheum tanguticum, the levels and distribution of genetic variation were investigated using ISSR markers. Fifty-eight R. tanguticum individuals from five cultivated populations were studied. Thirteen primers were used and a total of 320 DNA bands were scored. High levels of genetic diversity were detected in cultivated R. tanguticum (PPB = 82.19, H = 0.2498, H B = 0.3231, I = 0.3812) and could be explained by the outcrossing system, as well as long-lived and human-mediated seed exchanges. Analysis of molecular variance (AMOVA) showed that more genetic variation was found within populations (76.1%) than among them (23.9%). This was supported by the coefficient... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cultivated populations; Genetic variation; ISSR; Polygonaceae; Rheum tanguticum Maxim. ex Balf. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400010 |
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| Silva-Brambilha, Melissa Graciotto; UEM; Moscheta, Ismar Sebastião; UEM. |
| Leaf anatomy of the following Polygonaceae Polygonum acuminatum, P. ferrugineum, P. hydropiperoides, P. meisnerianum, P. punctatum, P. stelligerum, Ruprechtia laxiflora and Triplaris Americana was carried out as an aid towards the identification of these species found in the upper Paraná river floodplain. The leaf blade structure in transversal section, veins, stoma and epidermal trichome were compared. The genera Polygonum, Ruprechtia and Triplaris are easily distinguishable through their anatomical features: stomatal types, glandular trichomes, surface and edge non-glandular trichome, fimbria vein and epidermal idioblasts. Polygonum species are distinguishable through non-glandular trichomes, epidermal cavity and, with some difficulty, through areolas... |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas anatomia; Folha; Polygonaceae; Polygonum; Ruprechtia; Triplaris 2.00.00.00-6 Ciências Biológicas. |
| Ano: 2001 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2715 |
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| Melo,Efigênia de. |
| O estudo da família Polygonaceae é parte do projeto "Estudos de flora e fauna na Cadeia do Espinhaço, Bahia, Brasil". Neste trabalho a área de estudo foi ampliada, abrangendo também as espécies da Cadeia do Espinhaço do Estado de Minas Gerais. A família está representada na área por cinco gêneros, com os respectivos números de espécies: Coccoloba (14): C. acrostichoides, C. alagoensis, C. alnifolia, C. brasiliensis, C. cereifera, C. fastigiata, C. lucidula, C. ochreolata, C. pipericarpa, C. salicifolia, C. scandens, C. schwackeana, C. striata e C. warmingii, Polygonum (6): P. acuminatum, P. ferrugineum, P. hispidum, P. hydropiperoides, P. meisnerianum e P. punctatum, Rumex (1): R. crispus, Ruprechtia (1): R. apetala e Triplaris (1): T. gardneriana. São... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polygonaceae; Florística; "Cadeia do Espinhaço"; Campo rupestre; Bahia; Minas Gerais. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062000000300006 |
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