NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Temperature sensing by primary roots of maizeZea mays L. seedlings, grown on agar plates at 26 degrees C, reoriented the original vertical direction of their primary root when exposed to a thermal gradient applied perpendicular to the gravity vector. The magnitude and direction of curvature can not be explained simply by either a temperature or a humidity effect on root elongation. It is concluded that primary roots of maize sense temperature gradients in addition to sensing the gravitational force.
Document ID
20040090434
Document Type
Reprint (Version printed in journal)
Authors
Poff, K. L. (Michigan State University East Lansing 48824)
Date Acquired
August 21, 2013
Publication Date
January 1, 1990
Publication Information
Publication: Plant physiology
Volume: 94
ISSN: 0032-0889
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: NAGW-882
CONTRACT_GRANT: DE-AC002-76ERO-1338
Distribution Limits
Public
Copyright
Other
Keywords
NASA Program Space Biology
NASA Discipline Plant Biology
Non-NASA Center
NASA Discipline Number 29-20