However it is now known that not all S. aureus are coagulase-positive. It is also produced by Yersinia pestis. Coagulase reacts with prothrombin in the blood. The resulting complex is called staphylothrombin, which enables the enzyme protease to convert fibrinogen, a plasma protein produced by the liver, to fibrin.oagulase is tightly bound to the surface of the bacterium S. aureus and can coat its surface with fibrin upon contact with blood. The fibrin clot may protect the bacterium from phagocytosis and isolate it from other defenses of the host.
The definition of a Green Zone varies from community to community, but there is a common concept: a Green Zone designation provides a local framework to protect the environmental and economic health of a community heavily affected by local pollution. Read more about Green Zones in this LA Times article.he Environmental Protection Agency endorsed the Green Zone concept at a forum at the White House in December 2010. CBE was there, along with other environmental justice and indigenous groups from around the country.
The benthic zone is the ecological region at the lowest level of a body of water such as an ocean or a lake, including the sediment surface and some sub-surface layers.he superficial layer of the soil lining the given body of water, the benthic boundary layer, is an integral part of the benthic zone, as it greatly influences the biological activity which takes place there.