Current thinking on how the Toxoplasma gondii parasite invades its host is incorrect, according to a study published today in Nature Methods describing a new technique to knock out genes. The findings could have implications ...
Definition. Coral bleaching is a process whereby the coral colonies lose their colour, either due to the loss of pigments by microscopic algae (zooxanthellae) living in symbiosis with their host organisms (polyps), or because these zooxanthellae have been expelled.
Great Barrier Reef in crisis This mortal coral: new bleaching at the Great Barrier Reef â in pictures. Published: 5:01 PM. This mortal coral: new bleaching at the Great Barrier Reef â in pictures. Great Barrier Reef in crisis Great Barrier Reef at 'terminal stage': scientists despair at latest coral bleaching data. Published: 5:01 PM. Great Barrier Reef at 'terminal stage': scientists despair at latest coral bleaching data.