When green hydra were starved, cell division of the symbiotic algae within their digestive cells was inhibited, but algal cell growth, measured as increase in either mean volume or protein content per cell, was not. Therefore, control of algal division by the host digestive cells must be effected by direct inhibition of algal mitosis rather than by controlling algal cell growth. The number of a...

Microalgae feedstock production can be integrated with wastewater and industrial sources of carbon dioxide. This study reviews the literature on algae grown on wastewater and includes a preliminary analysis of algal production based on anaerobic digestion sludge centrate from the Howard F. Curren Advanced Wastewater Treatment Plant (HFC AWTP) in Tampa, Florida and secondary effluent from the Ci...

Emiliania huxleyi is a model coccolithophore micro-alga that generates vast blooms in the ocean. Bacteria are not considered among the major factors influencing coccolithophore physiology. Here we show through a laboratory model system that the bacterium Phaeobacter inhibens, a well-studied member of the Roseobacter group, intimately interacts with E. huxleyi. While attached to the algal cell, ...

Four whole-lake inorganic C addition experiments were conducted in lakes of differing trophic status. Inorganic C addition enriched algal carbon in C and changed the C-DOC by +1.5& to +9.5&, depending on the specific lake. This change in C-DOC represented a significant input of algal DOC that was not completely consumed by bacteria. We modeled the dynamics in C-DOC to estimate the fluxes of alg...

The toxic effects of herbicides (Machete, Saturn) and pesticides (Diazinon and Malathion) on green algae, Scenedesmus obtusiusculus, and cyanobacteria, Anabaena flos aquae, were studied. The results indicated that Machete and Saturn, in comparison to Diazinon and Malathion, were more toxic. On the other hand it was revealed that green algae was more sensitive to the pesticides than the cyanobac...

Algal filtrate and homogenate, obtained from Baltic seaweeds, were applied in seedling growth tests. Radish seeds were used in order to assess algal products phytotoxicity and their biostimulant effect on growth and nutrient uptake. Algal filtrate, at concentrations ranging from 5.0% to 100% was used for seed soaking and as a liquid biostimulant (soil and foliar application). Algal homogenate w...

The marine benthic green macroalga Caulerpa taxifolia is an invasive seaweed found in Europe, America, and Australia, it forms into huge algal meadows on shallow seafloors with its stolon rhizoid systems. It has bloomed along the coast of South China Sea, causing serious environmental problems. However, ecological impact not been well studied. Therefore, this study investigated changes concentr...

Increases in algal growth have been reported rivers, reservoirs, and other water resources worldwide, including Korea. Algal overgrowth can result bloom, which has several negative impacts, such as ecosystem degradation economic losses. Mitigation measures employed Korea include an warning system survey-based quality forecast systems. However, these methods are time-consuming require sample col...