Fireflies

**IRON EFFECT ON //PSEUDOMONAS FLUORESCENS//. Emily and Peter.** The purpose was to determine the effect that different solutions of Iron (III) Chloride have on the growth/glow rate of //pseudomonas fluorescens//. Five different solutions were mixed and then poured into the streaked bacteria and left to grow, then tested for glow and growth. The findings were minimal being that all the samples of bacteria seemed to glow at the same amount. The growth of the bacteria was measured and found to be that the samples with more iron had more bacteria growth. This lab proved to have different findings than expected. //Pseudomonas fluorescens//. Iron (III) Chloride. Growth. Glow. Measurements.



media type="file" key="science lab.wav" width="300" height="50"

Sources: Nakatsu, T., Ichiyama, S., Hiratake, J., Saldanha, A., Kobashi, N., Sakata, K., & Kato, H. (2006). Structural basis for the spectral difference in luciferase bioluminescence. //Nature//, 440(7082), 372. Retrieved from EBSCO//host//. Branham, Marc A. "How and why do fireflies light up?." //Scientific American// 293.6 (2005): 128. //Science Reference Center//. EBSCO. Web. 7 Jan. 2011.