Antimicrobial activity of marine sponges from Urabá Gulf, Colombian Caribbean region

Galeano, Elkin; Martínez, Alejandro Martínez

doi:10.1016/j.mycmed.2006.12.002

Cited by 34 publications

(19 citation statements)

References 15 publications

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“…The finding of occasional relatively large viruses in the sponges supports this view (data not shown). The presence of antimicrobial compounds in specific sponge layers can also not be discounted (Galeano and Martínez 2009).…”

Section: Sponges and Coral Disease-associated Bacteriamentioning

confidence: 99%

Florida reef sponges harbor coral disease-associated microbes

et al. 2010

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Sponges can filter large volumes of seawater and accumulate highly diverse and abundant microbial communities within their tissue. Culture-independent techniques such as fluorescent in situ hybridization (FISH), 16S small subunit (SSU) rRNA gene analyses, and transmission electron microscopy (TEM) were applied to characterize the presence and distribution of microbes within sponges abundant on south Florida reefs. This study found that coral disease-associated bacteria (CDAB) are harbored within Agelas tubulata and Amphimedon compressa. FISH probes detected several potential bacterial pathogens such as Aurantimonas coralicida, Cytophaga sp., Desulfovibrio spp, Serratia marcescans, and Vibrio mediterranei within A. compressa and A. tubulata host sponges. Spatial differences in the distribution of targeted bacteria were seen within sponge hosts. Transmission electron microscopy of A. compressa indicated there was a higher concentration of bacteria in the choanosome compared to the ectosome. These observed spatial distributions support the presence of internal sponge niches, which could play a role in the location of the CDAB within the sponges.

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Section: Sponges and Coral Disease-associated Bacteriamentioning

confidence: 99%

Florida reef sponges harbor coral disease-associated microbes

et al. 2010

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“…Evolutionary distance matrices were generated and a phylogenetic tree was inferred by the neighbor joining method. Tree topologies were evaluated by bootstrap analysis based on 1000 re-samplings of the neighbor joining data set (Galeano and Martínez 2007;Garrity et al 2007). …”

Section: Dna Preparation Pcr Amplification and Sequence Analysismentioning

confidence: 99%

A new marine microorganism strain L0804: taxonomy and characterization of active compounds from its metabolite

Lin

Liu

2010

World J Microbiol Biotechnol

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A new streptomyces strain designated L0804, producing antimicrobial substances, was isolated from marine mud in Qiangang, Jiangsu province, China. On the basis of cellular morphology, physiological and chemotaxonomic characterization and phylogenetic similarity of 16S rDNA gene sequences, the strain L0804 was identified as Streptomyces roseogilvus var. marine. However, the phylogenetic analysis indicated that strain L0804 represents a distinct phyletic line suggesting a new genomic species. Two antimicrobial compounds were isolated and purified from the strain L0804 culture broth using various separation procedures. The two active compounds were elucidated by HPLC, UV-VIS, IR and NMR spectroscopy. One was a mixture of at least three compounds belonging to alkaloids homologue, the other was griseoviridin. The antimicrobial activity and cytotoxicity of the two active compounds were compared. The results showed that strain L0804 was a new potential marine microorganism producing griseoviridin. Simultaneously, strain L0804 can also produce valuable substance of alkaloids homologue.

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“…The first compound isolated was an unusual lipid, 17 Z ‐tetracosenyl 1‐glycerol ether [10]. More recently, organic extracts of S. ruetzleri have shown cytotoxic activity against human breast cancer cells[13] and antifungal effects against Candida albicans [14]. These data open up very interesting perspectives for the study of this sponge.…”

Section: Introductionmentioning

confidence: 99%