Studies on the post-coital contraceptive mechanisms of crude extract of Sri Lankan marine red algae, Gelidiella acerosa

Contraception ◽  
1995 ◽  
Vol 52 (3) ◽  
pp. 203-207 ◽  
Author(s):  
G.A.S. Premakumara ◽  
W.D. Ratnasooriya ◽  
L.M.V. Tillekeratne
Keyword(s):  
Crude Extract ◽  
Red Algae ◽  
Sri Lankan ◽  
Gelidiella Acerosa

scholarly journals Sulfated polysaccharide from the red algae Gelidiella acerosa: Anticoagulant, antiplatelet and antithrombotic effects

2020 ◽  
Vol 159 ◽  
pp. 415-421 ◽  
Author(s):  
Francisco Diêgo da Silva Chagas ◽  
Glauber Cruz Lima ◽  
Valesca Ingrid Nobre dos Santos ◽  
Luís Eduardo Castanheira Costa ◽  
Willer Malta de Sousa ◽  
...  
Keyword(s):  
Red Algae ◽  
Sulfated Polysaccharide ◽  
Gelidiella Acerosa ◽  
Antithrombotic Effects

scholarly journals Bioactivity and genetic screening of marine actinobacteria associated with red algae Gelidiella acerosa

2018 ◽  
Vol 22 (1) ◽  
pp. 13 ◽  
Author(s):  
Maria Ulfah ◽  
Noer Kasanah ◽  
Niken Satiti Nur Handayani
Keyword(s):  
Secondary Metabolites ◽  
Red Algae ◽  
Genetic Screening ◽  
Bacterial Resistance ◽  
Marine Actinobacteria ◽  
Gelidiella Acerosa ◽  
Peptide Synthetase ◽  
New Antibiotics ◽  
Mini Plate ◽  
Microtiter Assay

Bacterial resistance to existing antibiotics has driven a search for new antibiotics from marine actinobacteria. Bioactivity and genetic screening of actinobacteria associated with red algae Gelidiella acerosa were conducted to discover new antibacterial compounds against Vibrio alginolyticus. A total of 14 actinobacteria isolates were obtained from G. acerosa. The isolates were subjected to genetic screening for nrps (non-ribosomal peptide synthetase) and FADH2-dependent halogenase genes. The isolates’ ability to produce secondary metabolites was examined by fermentation in various media in a six-well mini plate. The bioactivity of the secondary metabolites was screened using a microtiter assay and the agar overlay method. The results showed that all 14 isolates had the nrps gene, whereas none had the halogenase gene. Meanwhile, eight of the actinobacteria isolates showed antibacterial activity against V. alginolyticus.

Isolation of a non-steroidal contragestative agent from Sri Lankan marine red alge, Gelidiella acerosa

Contraception ◽  
1996 ◽  
Vol 54 (6) ◽  
pp. 379-383 ◽  
Author(s):  
G.A.S. Premakumara ◽  
W.D. Ratnasooriya ◽  
L.M.V. Tillekeratne
Keyword(s):  
Sri Lankan ◽  
Gelidiella Acerosa
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