scholarly journals Chemical mediation of bacterial surface colonisation by secondary metabolites from the red alga Delisea pulchra

1998 ◽  
Vol 15 ◽  
pp. 233-246 ◽  
Author(s):  
R Maximilien ◽  
R de Nys ◽  
C Holmström ◽  
L Gram ◽  
M Givskov ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Red Alga ◽  
Bacterial Surface ◽  
Chemical Mediation ◽  
Delisea Pulchra

Chemical Mediation of Ternary Interactions Between Marine Holobionts and Their Environment as Exemplified by the Red Alga Delisea pulchra

2012 ◽  
Vol 38 (5) ◽  
pp. 442-450 ◽  
Author(s):  
Tilmann Harder ◽  
Alexandra H. Campbell ◽  
Suhelen Egan ◽  
Peter D. Steinberg
Keyword(s):  
Red Alga ◽  
Chemical Mediation ◽  
Ternary Interactions ◽  
Delisea Pulchra

Localisation and surface quantification of secondary metabolites in the red alga Delisea pulchra

1999 ◽  
Vol 133 (4) ◽  
pp. 727-736 ◽  
Author(s):  
S. A. Dworjanyn ◽  
R. De Nys ◽  
P. D. Steinberg
Keyword(s):  
Secondary Metabolites ◽  
Red Alga ◽  
Delisea Pulchra

scholarly journals Traffic of Secondary Metabolites to Cell Surface in the Red Alga Laurencia dendroidea Depends on a Two-Step Transport by the Cytoskeleton

PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e63929 ◽  
Author(s):  
Vanessa M. Reis ◽  
Louisi S. Oliveira ◽  
Raoni M. F. Passos ◽  
Nathan B. Viana ◽  
Cláudia Mermelstein ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Cell Surface ◽  
Red Alga

scholarly journals Genomes and Virulence Factors of Novel Bacterial Pathogens Causing Bleaching Disease in the Marine Red Alga Delisea pulchra

PLoS ONE ◽  
2011 ◽  
Vol 6 (12) ◽  
pp. e27387 ◽  
Author(s):  
Neil Fernandes ◽  
Rebecca J. Case ◽  
Sharon R. Longford ◽  
Mohammad R. Seyedsayamdost ◽  
Peter D. Steinberg ◽  
...  
Keyword(s):  
Virulence Factors ◽  
Bacterial Pathogens ◽  
Red Alga ◽  
Delisea Pulchra

New Bioactive Secondary Metabolites from Bornean Red Alga, Laurencia similis (Ceramiales)

2013 ◽  
Vol 8 (3) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Takashi Kamada ◽  
Charles Santhanaraju Vairappan
Keyword(s):  
Antibacterial Activity ◽  
Secondary Metabolites ◽  
Secondary Metabolite ◽  
Red Alga ◽  
Algal Population ◽  
Cytotoxic Effects ◽  
Antibiotic Resistant ◽  
Good Antibacterial Activity ◽  
Bioactive Secondary Metabolites ◽  
Red Algal

A Bornean red algal population of Laurencia simlis Nam et Saito was analyzed for its secondary metabolite composition. Seven compounds were identified: ent -1(10)-aristolen-9β-ol (1), (+)-aristolone (2), axinysone B (3), 9-aristolen-1α-ol (4), 2,3,5,6-tetrabromoindole (5), 1-methyl-2,3,5,6-tetrabromoindole (6), and 1-methyl-2,3,5-tribromoindole (7). Compound 1 was identified as a new optical isomer of 1(10)-aristolen-9β-ol. Compounds 1, 4 and 5 exhibited good antibacterial activity against antibiotic resistant clinical bacteria and cytotoxic effects against selected cancer cell lines.

Polyhalogenated Indoles from the Red Alga Rhodophyllis membranacea: The First Isolation of Bromo-Chloro-Iodo Secondary Metabolites

2016 ◽  
Vol 79 (3) ◽  
pp. 463-469 ◽  
Author(s):  
Victoria H. Woolner ◽  
Cori M. Jones ◽  
Jessica J. Field ◽  
Nazmi H. Fadzilah ◽  
Andrew B. Munkacsi ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Red Alga

scholarly journals Effects of Caribbean sponge secondary metabolites on bacterial surface colonization

2005 ◽  
Vol 40 ◽  
pp. 191-203 ◽  
Author(s):  
SR Kelly ◽  
E Garo ◽  
PR Jensen ◽  
W Fenical ◽  
JR Pawlik
Keyword(s):  
Secondary Metabolites ◽  
Surface Colonization ◽  
Bacterial Surface

scholarly journals New Halogenated Secondary Metabolites from Red Algae of the South Pacific

2021 ◽  
Author(s):  
◽  
Victoria Woolner
Keyword(s):  
New Zealand ◽  
Secondary Metabolites ◽  
Structure Elucidation ◽  
Detailed Examination ◽  
Red Alga ◽  
Marine Natural Product ◽  
Extensive Investigation ◽  
Ic50 Value ◽  
Mass Spectrometric Evidence ◽  
Related Compounds

<p>An NMR- and MS-directed study led to the isolation and structure elucidation of several halogenated secondary metabolites from a New Zealand and a Tongan red alga. An extensive investigation was carried out on the New Zealand red alga Rhodophyllis membranacea following mass spectrometric evidence for an unusual tetrahalogenated indole with the exceptionally rare inclusion of bromine, chlorine and iodine within a fraction of a semi-purified extract. Due to the difficulty associated with the structure elucidation of proton deficient molecules, a strategic isolation and structure elucidation of several polyhalogenated indoles was employed in order to unequivocally assign the halogen positions on the indolic core. This resulted in the isolation and characterisation of 11 new tetrahalogenated indoles (123–133), four of which contain bromine, chlorine and iodine (124 and 129–131) and represent the first isolation of such compounds. Additionally, four new pentahalogenated indoles (134–137) and an uncharacterised tribromotrichloroindole were isolated. The synthetically known compound 4-chloroisatin (138) was isolated as a new marine natural product, while 4-chloro-3-hydroxyl-3-(2-oxopropyl)-2-oxindole (139) was established to be an artefact of isolation. Several compounds were found to exhibit antifungal properties against Saccharomyces cerevisiae.  A detailed examination of the Tongan alga Callophycus serratus led to the isolation of six new meroditerpenoids: callophycol C (227), iodocallophycols E (228) and F (229), iodocallophycoic acid B (230), deiodocallophycoic B (231) and callophycoic acid I (232). The relative configurations in compounds 228–231 are proposed to differ from closely related compounds in the literature. Iodocallophycol E (228) exhibited moderate cytotoxicity against the HL-60 cell line with an IC50 value of 6.0 μM.</p>

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