This study investigated the effect of the water extract of two types
of algae which spread in Syrian marine: Colpomenia sinuosa
(Brown) and Ulva fasciata (green) and a combination of them in
the cultivation on tomato and tobacco seeds with concent
rations of
(1: 2 1: 4 1: 6 1: 8 1:10 1: 20) By adding 5ml of each
concentration, and comparing it with the control sample with only
distilled water added, the comparison was made in terms of: The
germination, stem length, root length, root branch.
The study focused in this research to determine the trace of some heavy metal
elements (Copper Cu, Cadmium Cd, Lead Pb) in some types of marine macroalgae
scattered on the shore of the city of Banias during 2014, using atomic absorption
spectrosco
py (technology flame Flame- AAS).
The results indicate that the concentrationsofeach of Copper, Cadmium and Lead
have a link with macroalgae types, sampling sites from direction, and Source of pollution
on the other hand; it was observed that the accumulation of heavy metals in both of
Sargassum vulgare (browen algae) and Enteromorpha linza (green algae) was more than
red algae.
Copper concentration ranged between 1.291 ppm and 11.716 ppm in the studied
species, Reaching the highest value in the Enteromorpha linzaalgae and the lowest in
Sargassum vulgarealgae, the highest value of Lead element was (59.354 ppm) in
Enteromorpha linzaand the lowest value of it was (6.46 ppm) in Ulva fasciata, While the
highest values of the element Cadmium recorded (10.457 ppm) in Enteromorpha linza and
the lowest (0.666 ppm) in Ulva fasciata.
This study examines the ability of some marine algae (Padina pavonica and Hypnea musciformis) on accumulating polycyclic aromatic hydrocarbons (PAHS). The samples were collected from five sites on the Syrian coast during 2011.
The study revealed t
hat the studied algae were able to accumulate PAHs. Their concentrations in Padina pavonica ranged from 21.53 to 54.76 ng/g dw, While in Hypenea they ranged from 43.59 to 24.96. ng/g dw.
The Padina Pavonica of DIRASAT site accumulated the largest amount of PAHs compounds, while the highest concentrations of these compounds in Hypenea Musciformis were observed in the BISTAN AL-BASHA site. Fluorine and phenanthrene recorded high concentration in the studied algae in comparison with the rest of the aromatic compounds containing three aromatic rings, and the total concentration of the compounds with three rings was higher than that in those compounds with four or five aromatic rings.
The logarithm bioconcentration factors (log BCF) of the aromatic compounds with three aromatic rings was close to the logarithm octanol/water partitioning coefficients (log Kow ), unlike the compounds with higher rings, where log BCF was obviously less than that in the corresponding log Kow.
International demand of energy resources increase as
result of economical and social accelerated development,
and under scenarios which predicted depletion of fossil fuel
resource, the efforts trends to alternative energy resource
as biofuel, whe
re a native strain of Botryococcus braunii
was isolated from Room reservoir in Sweida-Syria and
used to produce biofuel, production conditions optimized in
flasks, then turn to work on photobioreactor which made
by native experience. Dry biomass, lipid content of
Botryococcus braunii and optical density were calculated to
express algal growth.
This research aims to study dynamics cyanobacteria population in the
Room reservoir (in the south Syria: Sweeda), which affected by water quality
environmental conditions, and seasonal. 17 genera where identified and their
dynamics studied monthly
during 2007, calculate the biomass of the prevail
genera. The bloom was occurred in October, and the value of diversity
coefficient was the highest in July in the Room reservoir, but didn't occurred in
the Jouelen reservoir.
We screening for antimicrobial substances production from marine algae of
Syria. We presented results of ١٦ algal species tested by their lipide and
aqueous extracts agaimst Gram’s negative and positive bacteria, as well as one
fungous species.
T
he lipide not aqueous extracts were the active against Gram’s positive
bacteria especially.
No effect founded on the fongous species. In addition we make comparative
viewing with other studies on other mediterranean contries regarding the same
species of algae tested.
