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Effects of light on protein patterns in gravitropically stimulated root caps of cornIn certain cultivars of corn (Zea mays var. Merit), light stimulates gravitropic bending of the root by influencing events in the root cap. In this paper, we report on changes in root cap proteins which occur as a result of the light treatment and single out specific proteins as potentially having a role in mediating the gravitropic response. For this work, we have used root caps maintained aseptically in culture media supplemented with auxin. If auxin is deleted from the culture medium, the protein profiles observed following illumination differ from that seen in caps provided light while in auxin-supplemented media. We also report that several of the proteins for which synthesis is stimulated by light appear to turn over rapidly, usually within 0.5 hour of formation.
Document ID
20040120822
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Feldman, L. J.
(University of California Berkeley 94720, United States)
Gildow, V.
Date Acquired
August 22, 2013
Publication Date
February 1, 1984
Publication Information
Publication: Plant physiology
Volume: 74
Issue: 2
ISSN: 0032-0889
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: PCM 8101981
CONTRACT_GRANT: NAGW-234
Distribution Limits
Public
Copyright
Other

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