NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Characteristics and implications of prolonged fusicoccin-induced growth of Avena coleoptile sectionsA study has been made of the prolonged growth of Avena coleoptile sections in response to fusicoccin (FC), a phytotoxin that promotes apoplastic acidification. The final amount of FC-induced growth is a function of the FC concentration. Removal of the epidermis speeds up the initial rate of elongation and shortens the duration of the response, without affecting the total amount of extension. A suboptimal FC concentration (7 x 10(-8) M) which induces the same rate of proton excretion as does optimal indoleacetic acid (IAA) (1 x 10(-5) M), causes elongation which is 60-75% of that induced by IAA in 4 h or 50-65% in 7 h. This suggests that acid-induced extension could make a major contribution to auxin-induced growth for at least 7 h.
Document ID
20040089323
Acquisition Source
Kennedy Space Center
Document Type
Reprint (Version printed in journal)
Authors
Cleland, R. E.
(Univ. of Washington Seattle 98195, United States)
Date Acquired
August 21, 2013
Publication Date
April 1, 1994
Publication Information
Publication: Physiologia plantarum
Volume: 90
Issue: 4
ISSN: 0031-9317
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: NAG10-0077
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Plant Biology

Available Downloads

There are no available downloads for this record.
No Preview Available