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Gravistimulus Production in Roots of CornBecause of the similarities in structure of known growth regulators, specifically abscisic acid and xanthoxin, with portions of the violaxanthin molecule, it was suggested that these growth substances normally arise from the breakdown or turnover of carotenoid. The light-induced disappearance of violaxanthin occurs in a time frame coincident with an increase in the levels in cap tissue of substances with growth inhibitor properties. One of the ways by which light may regulate root development, including aspects of gravitropism, is through the production of inhibitory growth substances arising from the turnover of carotenoids.
Document ID
19850017755
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Feldman, L. J.
(California Univ. Berkeley, CA, 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
85N26066
Funding Number(s)
CONTRACT_GRANT: NSG-239
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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