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EXPERIMENT INFORMATION

Response of Crown Gall Tissue to the Space Environment: Residual Carbohydrates in Supporting Tissue (COS 782-3)
Principal Investigator
Research Area:
Plant biology
Species Studied
Scientific Name: Daucus carota Species: Carrot

Description
Objectives:

A previous study had shown that plant tissue which is gravity compensated on a clinostat has a greater rate of respiration than similar tissue exposed to the normal gravitational environment. This experiment attempts to determine whether this response also occurs in weightlessness. Since it would not be possible to study gas exchange under such conditions, this study instead examines the depletion of carbohydrate reserve as a possible measure of respiration.


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Publications
Hendrix, J.E. and B.L. Baker: Responses of Crown Gall Tissue to the Space Environment: Residual Carbohydrates in Supporting Tissue. Final Reports of U.S. Experiments Flown on the Soviet Satellite Cosmos 782. S.N. Rosenzweig and K.A. Souza, eds., NASA TM-78525, 1978, pp. 33-44.

Keywords
Agrobacterium tumefaciens
Amylose
Carbohydrates
Cell respiration
Centrifugation
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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, metabolism, Carbohydrate, crown gall, carrot, Carbohydrate differentials, calculation
Content, carbohydrate, Amylose, crown gall, carrot, Extraction (80% ethanol), biochemistry
Content, carbohydrate, Glucose, crown gall, carrot, Extraction (80% ethanol), biochemistry
Content, carbohydrate, Sucrose, crown gall, carrot, Extraction (80% ethanol), biochemistry
Respiration, rate, Crown gall tissue, carrot, Carbohydrate depletion method
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Cosmos 782 11/25/1975 12/15/1975 20 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
C782-8.2
Protocol / Approach