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Plant Growth Biophysics: the Basis for Growth Asymmetry Induced by GravityThe identification and quantification of the physical properties altered by gravity when plant stems grow upward was studied. Growth of the stem in vertical and horizontal positions was recorded by time lapse photography. A computer program that uses a cubic spline fitting algorithm was used to calculate the growth rate and curvature of the stem as a function of time. Plant stems were tested to ascertain whether cell osmotic pressure was altered by gravity. A technique for measuring the yielding properties of the cell wall was developed.
Document ID
19850017778
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cosgrove, D.
(Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: NASA. Washington NASA Space Biol. Program:
Subject Category
Life Sciences (General)
Accession Number
85N26089
Funding Number(s)
CONTRACT_GRANT: NAGW-480
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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