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.

Bio-active sesquiterpenoids and norsesquiternoids from the Red Sea octocoral .

Three previously undescribed nardosinane-type sesquiterpenes (-), together with six known compounds (-) were isolated from the alcyonacean soft coral and are 13-nornardosinane, and 6,7-seco-13-nornardosinane derivatives, respectively. could be an artifact due to C-6 epimerization of the known one . Chemical structures were elucidated based on 1 D, 2 D NMR and MS spectral data.

Occurrence of cyanobacteria and microcystin toxins in raw and treated waters of the Nile River, Egypt: implication for water treatment and human health.

Monitoring of cyanobacteria and their associated toxins has intensified in raw water sources of drinking water treatment plants (WTPs) in most countries of the world. However, it is not explored yet for Egyptian WTPs. Therefore, this study was undertaken to investigate the occurrence of cyanobacteria and their microcystin (MC) toxins in the Nile River source water of Damietta WTP during warm months (April-September 2013) and to evaluate the removal efficiency of both cyanobacterial cells and MCs by conventional methods used in this plant as a representative of Egyptian drinking WTPs.