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| Provedor de dados: |
Biological Sciences
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| País: |
Brazil
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| Título: |
Comparative study of sulfated polysaccharides from Caulerpa spp. (Chlorophyceae). Biotechnological tool for species identification? - doi: 10.4025/actascibiolsci.v34i4.8976
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| Autores: |
Rodrigues, José Ariévilo Gurgel; Rede Nordeste de Biotecnologia, Universidade Estadual do Ceará
Quinderé, Ana Luíza Gomes; Universidade Federal do Ceará
Queiroz, Ismael Nilo Lino de; Universidade Federal do Ceará
Coura, Chistiane Oliveira; Universidade Federal do Ceará
Benevides, Norma Maria Barros; Universidade Federal do Ceará
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| Data: |
2012-09-04
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| Ano: |
2012
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| Palavras-chave: |
2.08.01.00-9 chlorophyta
Sulfated polysaccharides
Molecular markers
APTT test 2.08.01.00-9
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| Resumo: |
Studies on macromolecules isolated from marine algae suggested sulfated polysaccharides (SPs) as possible molecular markers for species. We evaluated isolated and fractionated SPs from the green marine algae Caulerpa cupressoides, C. prolifera and C. racemosa collected at Pacheco Beach, as possible taxonomic molecular indicators. Total SPs were extracted with papain in 100 mM sodium acetate buffer (pH 5.0) containing cysteine and EDTA (both 5 mM), followed by ion-exchange chromatography on DEAE-cellulose using a NaCl gradient. The obtained fractions were analyzed by 0.5% agarose gel electrophoresis. Anticoagulant assays employing normal human plasma and standard heparin (193 IU mg-1) by the activated partial thromboplastin time (APTT) test were also performed as comparison parameters. Low yields, and similar chromatographic profiles were found among species’ SPs, but electrophoresis revealed distinct SPs resolution patterns. The changes in APTT of SP fractions were dependent on charge density as showed by electrophoresis profiles. Activities were 17.37 (C. cupressoides), 22.17 (C. racemosa) and 25.64 (C. prolifera) IU mg-1, respectively, similar to a previous study using the first and second species. The results suggest that comparative studies of SPs isolated from seaweeds may be an important tool for the identification of Caulerpaceae.
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| Tipo: |
Bioquímica comparativa de algas
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8976
10.4025/actascibiolsci.v34i4.8976
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| Editor: |
Universidade Estadual De Maringá
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| Formato: |
application/pdf
application/pdf
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| Fonte: |
Acta Scientiarum. Biological Sciences; v. 34, n. 4 (2012); 381-389
Acta Scientiarum. Biological Sciences; v. 34, n. 4 (2012); 381-389
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| Direitos: |
DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Biological Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any other scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).
DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).
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