Chemical Composition, Antioxidant, and Antitumor Activity of Fucoidan from the Brown Alga .

Brown macroalgae are a rich source of fucoidans with many pharmacological uses. This research aimed to isolate and characterize fucoidan from var. (Hudson) J.

Algal amendment improved yield and grain quality of rice with alleviation of the impacts of salt stress and water stress.

The hazardous effect of abiotic stress and the beneficial effect of organic amendments on rice have been extensively studied during the vegetative stage, but little information is available regarding rice yield. Therefore, the response of rice yield to abiotic stress × organic amendment interaction needs thorough investigation. The differential potency of aqueous extract and biomass of the seaweed in alleviation of NaCl salinity and PEG-6000 water stress, at Ψ of -0.

The aqueous extract and powder of the brown alga (Hudson) differentially alleviate the impact of abiotic stress on rice ( L.).

Algal supplements can improve crop productivity and afford protection against abiotic stress by virtue of their rich content of plant nutrients and bioactive compounds. The present work investigates the relative efficiency of the biomass and extract of the brown alga in protection of rice against salinity and water stress. Rice ( L.

Antiviral activity of five filamentous cyanobacteria against coxsackievirus B3 and rotavirus.

Coxsackievirus B3 (CVB3) and rotavirus (RV) are pathogens of some chronic human diseases. The aim of this study was to determine in vitro antiviral activity of some cyanobacteria against RV and CVB3 infections. Five cyanobacteria were collected from Egypt, identified, and analyzed biochemically.