Another major hurdle for most companies planning to produce biofuel is the extraction of lipids from the algae cells.

Together with O. Baranetsky, he was the first to separate the green algae cells from lichens.

"Basically, algae cells are lost from the coral host," he said.

A brown algae cell fused with the cell of a green algae, which already had an endosymbiont.

In this form it finds its way into algae cells and feeds on their interiors.

They are also found in some fungi and algae cells.

Another sells a device that uses algae cells to remove toxic metals from water.

The company sells the device that uses algae cells immobilized in a column to remove toxic metals from water.

This damages and flocculates the algae cells into removable lumps.

Filamentous algae are long strands of algae cells that form floating mats.