The very defensive caterpillar
Caterpillars are bleeding defensive! Insects are known to lack an antibody-mediated immune response, and research in caterpillars has recently shown that, instead, they produce protective proteins in response to bacterial infection. The pattern recognition receptors (PRR) and antibacterial effectors produced at a first infection still function to protect against a repeated challenge. These result...Plants tell caterpillars when it's safe to forage
The world is filled with cues that could influence the daily feeding patterns of an organism. Many plants, for example, respond to foraging damage by releasing specialized chemical signals - volatile organic compounds that evaporate in the air - that attract the forager's natural enemies. This strategy is obviously no use against a cow, but proves effective when the offender is a caterpillar and...Caterpillars tell us how bacteria cause disease
Caterpillars and other invertebrates are helping to provide a cheap, easy and safe way to identify the genes which help bacteria cause infections in humans. Researchers from the University of Bath have discovered a way to sort through large numbers of bacterial gene sequences by testing them in caterpillars to see how their immune systems respond. This new technique known as Rapid Virulence Annot...Hormone Transforming Caterpillars to Moths Identified
Recent research has led to the identification of a starter hormone responsible for initiating the transformation of caterpillars into moths//. The research was led by David Champlin, a biology professor at the University of Southern Maine, and assisted by students Paul Allee of Portland and Steven MacWhinnie of Gray and three colleagues who are professors at the University of Washington...