Many tropical marine macroalgae are reported from all three ocean basins, though these very wide distributions may simply be an artifact resulting from inadequate taxonomy that fails to take into account cryptic diversity. Alternatively, pantropical distributions challenge the belief of limited intrinsic dispersal capacity of marine seaweeds and the effectiveness of the north-south oriented continents as dispersal barriers. We aimed to re-assess the distribution of two allegedly circumtropical brown algae, Dictyota ciliolata and D.

Prospecting macroalgae (seaweeds) as feedstocks for bioconversion into biofuels and commodity chemical compounds is limited primarily by the availability of tractable microorganisms that can metabolize alginate polysaccharides. Here, we present the discovery of a 36–kilo–base pair DNA fragment from Vibrio splendidus encoding enzymes for alginate transport and metabolism. The genomic integration of this ensemble, together with an engineered system for extracellular alginate depolymerization, generated a microbial platform that can simultaneously degrade, uptake, and metabolize alginate.

This study presents foliar application effect of Kappaphycus alvarezii (5-15%) extract on yield and seed quality of greengram at flowering stage. Application of K. alvarezii (conc. 10.0%) significantly increased seed yield (30.11%) compared to control,due to increase in yield of pods, weight of pods as well as seed yield per plant and 100 seed weight.

Coral reefs are in dramatic global decline, with seaweeds commonly replacing corals. It is unclear, however, whether seaweeds harm corals directly or colonize opportunistically following their decline and then suppress coral recruitment.

Comparative study of heavy metals in forty species of red seaweed belonging to twenty six genera from three different coastal areas (Buleji, Paradise Point and Nathia Gali) of Karachi, Arabian Sea was carried out over the period of three years. There is high variability in metals concentration with in, seaweed species, sampling sites and collection time.

Manakkudy estuary, located on the South-West coast of India has production of seaweeds to an amount of 15.59 kg/m2/yr. Four different types of seaweeds viz., Chaetomorpha aerea, Enteromorpha compressa, Gracilaria verrucosa and Hypnea musciformis were observed in this estuary. Highest production of biomass (C. aerea = 842.33