Title: PHYTOCHEMICAL CONSTITUENTS, CYTOTOXIC POTENTIALS AND EFFECTS ON WHEAT GROWTH PARAMETERS POSSESSED BY EXTRACTS OF SOME SEAWEED COLLECTED FROM THE WESTERN LIBYAN COAST
Author(s): Sondos R. Almokhzanji, Muftah A. Shushni and Majda S. Elwalid
Various inhabitants of the water such as, animals, and microbes produce compounds that have potential as pharmaceuticals. They produce “secondary metabolites” chemicals which are not vital for primary metabolic processes of these organisms, yet are believed to confer some evolutionary advantage. Many of these organisms are non-motile and have developed chemical compounds due to living in densely populated habitats. The natural products drug discovery research aimed its investigations at the marine environment recently due to its unraveled biodiversity compared to other environments. The pioneering work of Bergmann in the 1950s introduced the potential of the marine natural products as pharmaceuticals. A total of 5 ethanol and dichloromethane extracts of macroalgal species (2 green, 2 brown, 1 red) collected from Libyan coast were screened for their major phytochemical groups. The 5 algal species also subjected to be evaluated against brine shrimp lethality bioassay. The effect of seaweeds liquid fertilizer on growth parameters of Traticumsativum were also examined using in vitro seed germination in petri dishes bioassay. Ethanolic and dichloromethane extracts of the five algae samples represented the presence of several chemical constituents. All extracts exhibited LC50 >1000 ppm. There are different effects on growth of wheat seeds, in our study all algal extracts are non toxic according to Brine shrimp leathality assay so they may be considered as edible seaweeds. Different effects on growth parameters of Traticumsativum suggested the presence of micro elements, macro elements and different concentrations of plant growth hormones.
KEYWORDS: Marine Algae, Artemia, Fertilizer, Wheat