This experiment was performed by the LINVforROS team within ESA's educational programme: "Fly Your Thesis! - An Astronaut Experience". The Fly Your Thesis! programme gives university students the possibility to fly their scientific experiment in microgravity, as part of their Masters thesis, PhD thesis or research programme, by participating in a series of parabolic flights. In total, three teams of postgraduate students were flying their experiments during the 2012 'Fly Your Thesis!' campaign.
The objective of this project is the detection of coordinated variations in reactive oxygen species (ROS) production during the cyclic changes of gravity which occur during a parabolic flight. ROS control many different processes in plants and participate in responses to stress, such as gravity sudden changes.
In order to obtain more detailed and reliable information on ROS production during gravity changes, this Project aims to use different markers to detect ROS production in living cells derived from maize tissues.
On board, real-time measurement of ROS concentrations will be determined by a brand new approach, which will be used for the first time ever in the field of space plant biology. This technique, based on the oxidation of chemical compounds by ROS, will be used during the whole duration of the flight, in order to obtain a detailed profile of ROS production in each moment of each parabola. This will permit to explore the emerging complexity of the multiple roles that ROS play in cellular signalling in gravitystressed conditions, considering microgravity as a main source of stress for plants.
This Project is developed by an Italian team composed by two students and an endorsing professor from the University of Florence, Italy.
Drop Tower Bremen - DYT2011
Falling Roots - Chemical signalling in roots under microgravity conditions