System provides insight into chemical process with potential industrial applications
When threatened by predators, sea slugs defend themselves by ejecting a potent inky secretion into the water consisting of hydrogen peroxide, ammonia and several types of acids. A team of researchers with the Atlanta-based Center for Behavioral Neuroscience (CBN) has found that this secretion is produced from normally inert chemicals stored separately in two glands. The discovery, published in the Dec. 16 on-line edition of the Journal of Experimental Biology, provides insight into a natural chemical process with potential industrial applications.
In the study, a research team led by Georgia State University biologist Charles Derby, PhD, examined the ink and opaline glands of Aplysia sea slugs for the chemicals L-lysine, L-arginine and an enzyme protein called escapin. In previous research, Derbys team determined that escapin mediates the chemical reaction with L-lysine and L-arginine that results in the defensive secretion. Using a variety of chemical and molecular techniques, the scientists identified L-lysine and L-arginine in the opaline gland, which produces the sticky white component of the secretion, and escapin in the ink gland, which produces the purple dye in the secretion.
Ann Claycombe | EurekAlert!
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