In recent decades, environmental pollution has emerged as a core issue, around the globe, rendering it of fundamental concern to eco-toxicologists, environmental biologists, eco-chemists, pathologists, and researchers from other fields. The dissolution of polluting agents is a leading cause of environmental pollution of all key spheres including the hydrosphere, lithosphere, and biosphere, amon...

Marine algae are key sources of the biogenic sulfur compound dimethylsulphoniopropionate (DMSP), a vital component of the marine sulfur cycle. Autotrophic ecosystem engineers such as red coralline algae support highly diverse and biogeochemically active ecosystems and are known to be high DMSP producers, but their importance in the global marine sulfur cycle has not yet been appreciated. Using ...

Recently, there is increased interest in naturally produced active compounds as alternatives to synthetic substances. Although these compounds often show lower activity, they are nontoxic and do not leave residues. It has already been reflected by the projects of new law regulations in EU countries that have imposed legal restrictions on the use of xenobiotics as plant protection products or pr...

There is a rapid increase in the demand for natural hypopigmenting agents from marine sources for cosmeceutical and pharmaceutical applications. Currently, marine macroalgae are considered as a safe and effective source of diverse bioactive compounds. Many research groups are exploring marine macroalgae to discover and characterize novel compounds for cosmeceutical, nutraceutical, and pharmaceu...

Turf algae are multispecies communities of small marine macrophytes that are becoming a dominant component of coral reef communities around the world. To assess the impact of turf algae on corals, we investigated the effects of increased nutrients (eutrophication) on the interaction between the Caribbean coral Montastraea annularis and turf algae at their growth boundary. We also assessed wheth...

An electrometric system for determination of carbonic anhydrase activity was constructed. Enzyme activity was assayed in homogenates of marine macroscopic Chlorophyta, Rhodophyta, and Phaeophyta. Plants surveyed included Ulva expansa (Setchell) Setchell and Gardner, Codium fragile (Suringar) Hariot, Enteromorpha sp., Chaetomorpha torta (Farlow) McClatchie (Chlorophyta); Laurencia papillosa (Gre...

The antimicrobial activity of five compounds extracted from marine algae was tested against Staphylococcus aureus, Salmonella choleraesuis, Mycobacterium smegmatis, Candida albicans, and Escherichia coli. Three of the compounds, cycloeudesmol, laurinterol, and debromolaurinterol, exhibited activity at concentrations approaching that of streptomycin. None of the compounds inhibited all of the or...

Estimation and comparison of effective compounds (mineral contents, amino acids compositions, fatty acids distributions, protein, fat and total fiber contents) in two algae species Sirophysalis trinodis and Polycladia myrica collected from Qeshm Island were done. The samples washed up with tap water and then were dried in an oven at 40 ◦C for 3 days. The dried algae samples were pulverized and ...