March 31, 2016

Cyanobacteria living in the sea or in fresh water protect themselves from excess light radiation by activating the orange carotenoid protein (OCP). The OCP is activated by strong light and changes its color from orange to red. The picture shows three cells, one in full light (above, reddish color), one in shadow (below, the color of their spot) and one in the middle. In the article, the mechanism of action of the OCP was proposed: after activation, the amino-end of the protein "digs" into the antenna complex called the phycobilisome, thereby preventing the flow of energy to the reaction centers. Illustration: Itai Goldschmid

The autophagy of the cyanobacteria

Crab breeding pond. Photo: shutterstock

Technologies are being developed in Beer Sheva to improve shrimp aquaculture