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Gravitropism in Leafy Dicot StemsA polarizing research microscope with rotating stage and associated camera equipment were ordered, and techniques of fixation and preparation of specimens were perfected for studying possible changes in orientation of cellulose microfibrils in cell walls of gravistimulated dicot stems. Acid ethephon solutions or acid without ethephon caused elongation of stem tissues where they were applied; stems bent away from the side of application. Acid solutions applied to the bottom of horizontal stems greatly delayed bending. Research in tissue sensitivity changes during gravitropic bending of soybean hypocotyls while immersed in auxin and in castor bean stems is also reported.
Document ID
19850017775
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Salisbury, F. B.
(Utah State Univ. Logan, UT, 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
85N26086
Funding Number(s)
CONTRACT_GRANT: NSG-7567
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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