The present study investigated the synthesis of silver and gold nanoparticles by two species of brown seaweeds (Padina tetrastromatica and Turbinaria ornata) through analytical techniques and its antimicrobial activity. The brown seaweeds, P. tetrastromatica and T. ornata were collected from Mandabam, The collected freshly seaweeds were thoroughly washed in distilled water. About 20 grams of se...

Benthic primary producers in marine ecosystems may significantly alter biogeochemical cycling and microbial processes in their surrounding environment. To examine these interactions, we studied dissolved organic matter release by dominant benthic taxa and subsequent microbial remineralization in the lagoonal reefs of Moorea, French Polynesia. Rates of photosynthesis, respiration, and dissolved ...

Background: Root-knot nematodes are known to cause significant damage to eggplants. New approaches by green silver nanoparticles (GSN) are used to control plant-parasitic nematode to avoid chemical nematicide hazards.Objectives: Analyses of the incorporation of different concentrations of nanoparticles on two different algae (Ulva lactuca and Turbinaria turbinata) were carried out. Fureth...

BACKGROUND Three species of seaweeds (Padina tetrastromatica, Caulerpa racemosa and Turbinaria ornata) are widely consumed by Asians as nutraceutical food due to their antioxidant properties. Studies have shown that these seaweeds exhibit bioactivities which include antimicrobial, antiviral, anti-hypertensive and anticoagulant activities. However, investigations into the mechanisms of action pe...

Shifts in dominance from corals to macroalgae are occurring in many coral reefs worldwide. Macroalgal canopies, while competing for space with coral colonies, may also form a barrier to herbivorous and corallivorous fish, offering protection to corals. Thus, corals could either suffer from enhanced competition with canopy-forming and understorey macroalgae or benefit from predator exclusion. He...

Rumput laut coklat Nusa Tenggara Barat, seperti Sargassum dan Turbinaria yang melimpah keberadaannya diketahui mengandung hormonpertumbuhan tanaman dengan kadar cukup tinggi. Penggunaan pupuk kimia berlebihan pada budidaya menyebabkan meningkatnyabiaya produksi, menurunkan kesuburan tanah, mencemari lingkungan berpotensi menimbulkan dampak negatif bagi kesehatan dankeamanan pangan. Oleh karena ...

Highlight Research Brown seaweed heavy metals content varies between species Risk assessment showed low health risk for metal from intake of the three brown The types did not show carcinogenic properties to Arsenic (As) Abstract Marine are known as one potential biological agents be developed functional food and medicinal sectors. This study aims examine concentration (Pb, Cd, Hg, As) in algae ...