Many species of microalgae produce greatly enhanced amounts of triacylglycerides (TAGs), the key product for biodiesel production, in response to specific environmental stresses. Improvement of TAG production by microalgae through optimization of growth regimes is of great interest. This relies on understanding microalgal lipid metabolism in relation to stress response in particular the depriva...

Lampenflora communities of bacteria, cyanobacteria, algae, mosses and lichens colonize illuminated show-caves as a consequence disturbances to the caves? ecological equilibrium. These have unesthetic impacts can cause biodeterioration limestone. A 15% hydrogen peroxide solution was proposed for use an agent safe removal these microorganisms. This study tested effects three different biocides (h...

abstract this study was performed to compare the efficiency of 6 microalgae namely dunaliella tertiolecta, tetraselmis suecica, chlorella sp., (green algae), nannochloropsis oculata, spirolina sp.(blue-green algae) cheatocerus sp. (diatoma),  and isochrices sp. (haptophytae) on the growth, survival and reproduction efficacy in artemia urmiana in laboratory conditions. artemia cysts were harvest...

This study aims to assess the effects of two pesticides, namely the insecticide carbofuran and the herbicide isoproturon, on monospecifically cultivated marine and freshwater phytoplankton according to standard methods. In the presence of pesticide, growth rates were lower in marine species Chaetoceros gracilis and Phaeodactylum tricornutum than in freshwater species Chlorella vulgaris and Sele...

In recent years, the role of lectins in feed selection bivalve has become hot research topic. Manila clam Ruditapes philippinarum is a species marine with important economic value. A new C-type lectin (Rpcl) from was obtained and its potential feeding studied. Rpcl cDNA 929 bp length had 720 open reading frame. encoded 235 amino acids, comprising carbohydrate recognition domain (CRD) as well an...

Laboratory experiments were conducted to study the effects of oil spills and dispersants on growth red tide organism Chaetoceros sp. Crude produced from Chinese Bohai Sea, diesel oil, chemical dispersant (GM-2) in China added into cultures. The results showed that both crude could enhance Data analyzed by one-way ANOVA, confidence interval was 95%. At a concentration 20 mg L−1 10 μL bloomed 1.5...

The running down of fossil energy sources makes the production of bioenergy an expected need worldwide. Therefore, energy crops have gained increasing attention in recent years as a source for the production of bioenergy because they do not compete with food crops. Microalgae have numerous advantages such as fast growth rates and not competing with food production. Because of the fast growth, m...

An aposymbiotic strain of Hydra viridis became infected with free-living Chlorella sp. A stable symbiosis formed that differed in its characteristics from other known Chlorella/Hydra symbioses. The algae reproduced and formed clusters in host endodermal cells, inside large vacuoles filled with an electron-dense substance. A few algae were found to be digested by the hydra, but the apparently un...