Halogenated Secondary Metabolites of Laurencia similis (Rhodomelaceae, Rhodophyta)
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M. Masuda
Abstract
The red alga Laurencia similis Nam et Saito (Rhodomelaceae, Ceramiales) from Borneo, Malaysia, contains two polybrominated indoles, 1-methyl-2,3,5,6-tetrabromoindole and 2,3,5,6-tetrabromoindole, as halogenated secondary metabolites, which have been previously isolated from Laurencia brongniartii J. Agardh. The two species share a unique taxonomic feature, the production of a single tetrasporangium-bearing periaxial cell per fertile segment, in the subgenus Laurencia. This similarity is strongly supported by halogenated metabolite chemistry. The close affinity between L. similis with spirally branched, terete thalli (section Laurencia) and L. brongniartii with distichously branched, complanate thalli (section Planae Saito et Womersley) suggests that section Planae should not receive taxonomic recognition.
Copyright (c)1999 by Walter de Gruyter GmbH & Co. KG
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Artikel in diesem Heft
- Comparison of the Phytoplankton Assemblages of the South-Eastern Barents Sea and South-Western Kara Sea: Phytogeographical Status of the Regions
- Intertidal Fungi in Mangalore Harbour, Southern India
- Epiphyte Accrual on Posidonia oceanica (L.) Delile Leaves: Implications for Light Absorption
- The Benthic Marine Algae of Uruguay
- On the Evolution of Interactions between Marine Mesoherbivores and Algae
- Bioaccumulation of Hg, Cd, Pb and Zn in Four Marine Phanerogams and the Alga Caulerpa prolifera (Försskal) Lamouroux from the East Coast of Spain
- Differential Antibacterial Activity of Extracts from Selected Southern African Macroalgal Thalli
- Seasonal Variations in the Yield, Gelling Properties, and Chemical Composition of Agars from Gracilaria eucheumoides and Gelidiella acerosa (Rhodophyta) from the Philippines
- Coexistence of Agaroid and Carrageenan Structures in a Polysaccharide from the Red Seaweed Rhodomela larix (Turner) C. Ag.
- Life History of a Marine Dinoflagellate Pyrophacus steinii (Schiller) Wall et Dale
- Halogenated Secondary Metabolites of Laurencia similis (Rhodomelaceae, Rhodophyta)
