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Effect of asymmetric auxin application on Helianthus hypocotyl curvatureIndole-3-acetic acid was applied asymmetrically to the hypocotyls of sunflower (Helianthus annuus L.) seedlings. After 5 hours on a clinostat, auxin gradients as small as 1 to 1.3 produced substantial (more than 60 degrees) hypocotyl curvature. This result suggests the asymmetric growth underlying hypocotyl gravitropism can be explained by lateral auxin redistribution.
Document ID
20040112074
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Migliaccio, F.
(Yale University New Haven, Connecticut 06511)
Rayle, D. L.
Date Acquired
August 21, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Plant physiology
Volume: 91
ISSN: 0032-0889
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: NAGW-230
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Number 29-20
Non-NASA Center
NASA Discipline Plant Biology
NASA Program Space Biology

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