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EXPERIMENT INFORMATION

Biochemical Changes in the Developing Wheat Seedling (P-1138)
Principal Investigator
Research Area:
Plant biology
Species Studied
Scientific Name: Triticum vulgare Species: Wheat

Description
Objectives:

This experiment was designed to: 1) correlate changes in metabolism and energetics with the reorientation of plant organs during weightlessness; 2) to study the key enzymes associated with these processes; and 3) to determine if weightlessness retards any growth of the root and shoot because of a modification of protein synthesis and the incorporation of carbohydrates into cell wall constituents of endosperm of the wheat seedling.


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Publications
Conrad, H.M.: Biochemical Changes in the Developing Wheat Seedling in the Weightless State. Bioscience, vol. 18, no. 6, 1968, pp. 645-652.

Johnson, S.P. and H.M. Conrad: Biochemical Changes in the Endosperm of Wheat Seedlings in the Weightless State. BIOSPEX: Biological Space Experiments, NASA TM-58217, 1979, p. 145.

Johnson, S.P.: Biochemical Changes in the Endosperm of Wheat Seedlings in the Weightless State. Bioscience, vol. 18, no. 6, 1968, pp. 652-655.

Johnson, S.P.: Biochemical Changes in the Endosperm of Wheat Seedlings in the Weightless State. Experiments of Biosatellite II, NASA SP-204, 1971, pp. 213-221.

Keywords
Cotyledon
Glucosephosphate dehydrogenase (GLDH)
Glyceraldehydephosphate dehydrogenase
Malate dehydrogenase (MDH)
NADH dehydrogenase
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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
Activity, Carbohydrate metabolism, wheat seedling, Histology, enzyme assay
Activity, enzymic, peroxidase, glucose-6-phosphate dehydrogenase, glyceralderhyde-3-phosphate dehydrogenase, wheat, Assay
Activity, enzymic, Substrate activity, wheat seedlings, Histochemistry, microscopy
Composition, Protein, coleoptile, wheat seedlings, Histochemistry, microscopy
Consumption, Oxygen, tissue slice, wheat
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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
BIO2-12
Protocol / Approach