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EXPERIMENT INFORMATION

Effects of Weightlessness on the Root and Shoot of Wheat Seedlings (P-1020)
Principal Investigator
Research Area:
Plant biology
Species Studied
Scientific Name: Triticum vulgare Species: Wheat

Description
Objectives:

Wheat seedlings were used in this experiment because of the convenient size, their rapid and consistent germination, and their measurable geotropic response. The intention was to determine alterations in the growth and shape of wheat seedling organs, and the reflection of such changes at the cellular level, and to determine if weightlessness is adequately simulated by a clinostat. As the launch of Biosatellite II entailed considerable vibration, another important aspect of this experiment involved the effect of vibration in the growth and development of the seedlings.


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Publications
Edwards, B.F. and S.W. Gray: Biosatellite II Weightlessness Experiments. Bulletin of the Georgia Academy of Science, vol. 27, 1969, pp. 79.

Edwards, B.F. and S.W. Gray: Cellular Changes in Wheat Seedlings During Orbital Flight. Life Sciences and Space Research: Proceedings of the 13th Plenary Meeting of COSPAR, Leningrad, USSR, May 20-29, 1970, Akademie-Verlag, 1971, pp. 113-118.

Edwards, B.F. and S.W. Gray: Cellular Responses to Weightlessness. Anatomical Record, vol. 166, 1970, pp. 301.

Edwards, B.F. and S.W. Gray: Effects of Weightlessness on Mitosis, Cell Length, and Nuclear Volume. Bulletin of the Georgia Academy of Science, vol. 28, 1970, p. 58.

Edwards, B.F. and S.W. Gray: Preliminary Results for the First Successful Biosatellite. Bulletin of the Georgia Academy of Science, vol. 26, 1968, p. 64.

Edwards, B.F.: Gravity Receptors and Weightlessness. Anatomical Record, vol. 160, 1968, p. 344.

Edwards, B.F.: Weightlessness Experiments on Biosatellite II. Life Sciences and Space Research: Proceedings of the 11th Plenary Meeting of COSPAR, Tokyo, Japan, May 14-16, 1968, North Holland Publishing, 1969, pp. 84-92.

Gray, S.W. and B.F. Edwards: An Effect of Weightlessness Following Exposure to Vibration. Life Sciences and Space Research: Proceedings of the 12th Plenary Meeting of COSPAR, Prague, Czechoslovakia, May 11-14, 1969, North Holland Publishing, 1970, pp. 25-32.

Gray, S.W. and B.F. Edwards: Plant Responses to Chronic Acceleration. Gravity and the Organism, S.A. Gordon and M.J. Cohen, eds., University of Chicago Press, 1971, pp. 341-369.

Gray, S.W. and B.F. Edwards: The Effect of Weightlessness on the Growth and Orientation of Roots and Shoots of Monocotyledonous Seedlings. Experiments of Biosatellite II, NASA SP-204, 1970, pp. 123-165.

Gray, S.W. and B.F. Edwards: The Effect of Weightlessness on the Growth and Orientation of Roots and Shoots of Monocotyledonous. BIOSPEX: Biological Space Experiments, NASA TM-58217, 1979, p. 143.

Keywords
Acid phosphatase
Cotyledon
DNA, Plant
Glucose-6-phosphatase
Growth and development
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Data Information
Data Availability
Archive is complete. No data sets are available for this experiment. Please Contact LSDA if you know of available data for this investigation.

Parameters
Damage, Developmental abnormalities, wheat, plant, Microscopy
Growth, germination, Wheat seeds, observation
Growth, rate, Wheat coleoptile, Photography, face-view and side-view angles
Growth, rate, Wheat roots, Photography, face-view and side-view angles
Morphology, distribution, Amyloplasts, wheat seedlings, Histology, microscopy
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Biosatellite II 09/07/1967 09/09/1967 2 days

Additional Information
Co-Investigators
Managing NASA Center
Ames Research Center (ARC)
Responsible NASA Representative
Ames Research Center LSDA Level 3
Project Manager: Helen Stewart
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
BIO2-11
Protocol / Approach