Abstract
The gravity-sensing mechanism in plants end transduction of the gravity stimulus to re-orientating plant growth has not been ascertained. By removing the everpresent influence of the 1 g terrestrial environment on plant growth and development, information maybe obtained about the gravity detection mechanism in plants. The Space Life sciences Payloads Office at NASA-ARC processed the secondary Payloads flight experiment “Growth Hormone Concentration and Distribution in Plants” (GHCD). The experiment occupied two middeck lockers in the crew compartment onboard the space shuttle Atlantis (STS-34) in October 1989. The payload's Principal Investigator was Dr. S. Bandurski, Professor of Botany at Michigan State University. dr. Bandurski's experiment was designed to investigate concentration, distribution, and turnover rates of indole-3 acetic acid (IAA) in dark-grown corn seedlings exposed to the microgravity environment. The flight data may provide valuable information for long-term crop production in space as well as terrestrial agriculture. This poster will present the flight payload processing procedures necessary to successfully conduct a space shuttle flight experiment.
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