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.
Dermatology The process of removing color or pigment from the skin using various potentially harmful chemicals. Environment A mass extinction of coral in certain regions which is variously attributed to global warming or to local stressors. Vox populi The removing of stains or colours, in particular, the process of whitening fabrics by chemicalsâe.g., bleach, or bleaching powder consisting of chloride of lime.