Antibiotic Properties of Marine Algae. II. Screening of Chilean Marine Algae for Antimicrobial Activity

Henríquez, Patricio; Candia, Arturo; Norambuena, Ricardo; Silva, M.; Zemelman, R

doi:10.1515/botm.1979.22.7.451

Cited by 19 publications

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, our findings differ in some details from the results of Albuquerque et al (1983). Henriquez et al (1979) screened marine algae from Chile and described the Chlorophyceae as inactive. However, with the species tested from Brazil only Ulva lactuca was inactive.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Screening of Marine Algae from Brazilian Northeastern Coast for Antimicrobial Activity

Campos-Takaki¹,

Diu²,

Koening³

et al. 1988

Botm

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

“…A number of studies have reported biological activity from microscopic marine algae (Prat et al 1951, Chester and Stott 1956, Roos 1957, Burkholder et al 1960, Henriquez et al 1979. Recently Pesando and Caram (1984), have indicated that macroscopic marine algae may be a potential source of antibiotic substances.…”

Section: Introductionmentioning

confidence: 99%

Screening of Marine Algae from Brazilian Northeastern Coast for Antimicrobial Activity

Campos-Takaki¹,

Diu²,

Koening³

et al. 1988

Botm

View full text Add to dashboard Cite

show abstract

“…Toxicity screenings of seaweed species from various geographic regions (Caccamese & Azzolina 1979, Henríquez et al 1979, Caccamese et al 1980, Chénieux et al 1980, Naqvi et al 1980, Ballesteros et al 1992) have shown repeatedly that seaweeds are an important source of bioactive products. Consequently, seaweeds have often been targeted in the search for compounds with pharmacological properties.…”

Section: Introductionmentioning

confidence: 99%

Seasonal and spatial variation of species toxicity in Mediterranean seaweed communities: correlation to biotic and abiotic factors

Martí

Uriz²,

Turon³

2004

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

The toxicity of crude extracts of 32 seaweed species from the western Mediterranean was analysed by Microtox ® assay in spring and autumn of 1996 and 1997. The species analysed represented more than 76% of seaweed coverage in the 3 algal communities studied: photophilic and sciaphilic communities from the Cabrera Archipelago (Balearic Islands), and a hemisciaphilic community from the Medes Archipelago (northeastern Iberian Peninsula). Most species showed seasonal variation of toxicity, which was greater in species from Cabrera than in those from Medes. Both, intra and interspecies variation of toxicity were found. Moreover, comparison of mean toxicity of these communities showed that toxicity was higher in November than in June in all cases, and that the photophilic community had both the highest number and the most toxic species. To make an ecologically relevant interpretation of the toxicity detected by Microtox ® , we compared the toxicity of extracts analysed by the Microtox ® test and those analysed by the commonly used sea urchin embryo assay. In addition to seaweeds, some species of invertebrates (sponges and ascidians) were compared to ascertain whether the relationship between the 2 tests was applicable to species belonging to different phyla. These comparisons allowed us to establish that 0.5 gamma units in Microtox ® assay is the threshold value between toxic and non-toxic species. Following a light gradient from the photophilic to the sciaphilic communities, the seaweed species that were occasionally toxic increased while the always-toxic seaweeds decreased. Rhodophyta and Phaeophyta had a higher percentage of toxic species than Chlorophyta. Non-encrusting seaweed forms were more toxic than the encrusting ones, and in contrast to most other seaweeds, the non-encrusting calcareous species that increased coverage from June to November simultaneously displayed a marked decrease in toxicity. We conclude that the temporal variation of toxicity observed in the seaweeds studied may be partially explained by intrinsic factors of the species (growth rates and growth shapes).

show abstract

“…The production of extracellular antibiotic metabolites by marine algae has been well studied in recent years [2][3] . Various strains of cyanobacteria are known to produce intracellular and extracellular metabolites with wide biological activities such as antialgal, antibacterial, antifungal and antiviral activity 4 .…”

Section: Introductionmentioning

confidence: 99%

Untitled

2011

IJPSR

View full text Add to dashboard Cite

The present investigation was undertaken to study the antimicrobial and antioxidant activity in algae (Chlamydomonas reinhardtii CC 124). The extractions of metabolites were done by two methods (glass bead and steel ball) using methanol: chloroform: water (5:2:2) as solvents. The presences of metabolites were identified by thin layer chromatography and structural analysis was done by Gas Chromatography and Mass Spectrometry. Antimicrobial activities of the extracts were assessed against bacterial and fungal strains (Bacillus subtilis, Pseudomonas aeruginosa, Klebsiella pneumoniae, Candida albicans, Aspergillus niger, Aspergillus flavus) by disc diffusion method and compared with standard antibiotics. The results, of both extracts showed more potent antimicrobial activity in (B. subtilis,P. aeruginosa, K. pneumoniae) bacterial species and (C. albicans) fungal strain. The antioxidant activity was tested by DPPH (2, 2-Diphenyl-1picrylhydrasyl) free radical method and determination of H 2 O 2 radical scavenging activities were also performed. The presence of antioxidants was compared with commercial antioxidants, such as BHT (Butylated Hydroxy Toluene), BHA (Butylated Hydroxyl Anisole).The phenolic content was compared with gallic acid. From the present study, it can be concluded that the two different extracts of the algae has the antimicrobial and antioxidant activity.

show abstract

Antibiotic Properties of Marine Algae. II. Screening of Chilean Marine Algae for Antimicrobial Activity

Cited by 19 publications

References 8 publications

Screening of Marine Algae from Brazilian Northeastern Coast for Antimicrobial Activity

Screening of Marine Algae from Brazilian Northeastern Coast for Antimicrobial Activity

Seasonal and spatial variation of species toxicity in Mediterranean seaweed communities: correlation to biotic and abiotic factors

Untitled

Contact Info

Product

Resources

About