caa a22 4500 378923706 CHVBK 20180305123611.0 cr unu---uuuuu 161128e20040413xx s 000 0 eng 10.1515/BOT.2004.014 doi (NATIONALLICENCE)gruyter-10.1515/BOT.2004.014 Antibacterial activity in marine algae from the coast of Yucatan, Mexico [Elektronische Daten] [Yolanda Freile-Pelegrín, Juan Luis Morales] Ethanolic and lipid-soluble extracts from 21 marine algal species (10 Chlorophyta, 2 Phaeophyta and 9 Rhodophyta) from the coast of Yucatan, Mexico, were evaluated for antibacterial activity against pathogenic microbes (4 Gram-positive, 5 Gram-negative and one fungus). All species with antibacterial activity (18) were active against the Gram-positive bacteria (Bacillus subtilis, Streptococcus faecalis and Micrococcus luteus), and most of the algal species exhibited activity against B. subtilis (89% in ethanolic soluble extracts and 94% in lipid-soluble extracts). The lipid-soluble extract of Ceramium nitens exhibited the highest activity among the species tested. The results are significant because no antibacterial activity has been found in previous research on this, or any other, species from this genus. The antimicrobial activities associated with extracts from different thallus regions (apical, basal and stolon) of selected Caulerpa species (C. ashmeadii, C. paspaloides and C. prolifera) were also evaluated. Results generally indicate that the stolon of Caulerpa has the highest antibacterial activity. Copyright © 2004 by Walter de Gruyter GmbH & Co. KG Hydrobiology nationallicence Mycology, fungi nationallicence Botany & plant sciences nationallicence Freile-Pelegrín Yolanda aut Morales Juan Luis aut Botanica Marina Walter de Gruyter 47/2(2004-04-13), 140-146 0006-8055 47:2<140 2004 47 botm https://doi.org/10.1515/BOT.2004.014 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/BOT.2004.014 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Freile-Pelegrín Yolanda aut NATIONALLICENCE 700 1- Morales Juan Luis aut NATIONALLICENCE 773 0- Botanica Marina Walter de Gruyter 47/2(2004-04-13), 140-146 0006-8055 47:2<140 2004 47 botm CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter