Physics – Medical Physics
Scientific paper
Jan 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..458..376m&link_type=abstract
Space technology and applications international forum -1999. AIP Conference Proceedings, Volume 458, pp. 376-381 (1999).
Physics
Medical Physics
Aerospace Bio- And Medical Physics
Scientific paper
Previous studies on growth and development during spaceflight had indicated that the transition from vegetative to reproductive growth was particularly difficult for plants. Our objective has been to study how the spaceflight environment impacts the different steps in plant reproduction. This goal has been pursued in two general ways: by using plants that had been pre-grown to the flowering stage on earth, and by using plants that developed completely on orbit. Our objectives have been met by a combination of experiments that required essentially no crew time on orbit, and those that required an extensive commitment of crew time. The plants chosen for the studies were closely related members of the family Brassicaceae: Arabidopsis thaliana and Brassica rapa. In a series of short-duration experiments with Arabidopsis on the space shuttle we found that depletion of carbon dioxide in closed chambers resulted in aborted development of both the male and female reproductive apparatus in microgravity. Normal development was restored by addition of carbon dioxide or by providing air flow. A subsequent shuttle experiment with Brassica utilizing hardware that provides a vigorous air flow confirmed embryo development following pollination on orbit. Brassica plants grown from seed on the Mir space station produced seed that germinated and grew when replanted on orbit. Future experiments will determine effects of multiple generations in space.
Kuang Anxiu
Matthews Sharon W.
Musgrave Mary E.
Xiao Ying
No associations
LandOfFree
Reproduction on orbit by plants in the Brassicaceae family does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Reproduction on orbit by plants in the Brassicaceae family, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reproduction on orbit by plants in the Brassicaceae family will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1188574