![](/images/graphics-bg.png)
Polyamine-Induced Rapid Root Abscission in Azolla pinnata
Joint Authors
Gurung, Sushma
Fukuto, Jon
Cohen, Michael F.
Yamasaki, Hideo
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Floating ferns of the genus Azolla detach their roots under stress conditions, a unique adaptive response termed rapid root abscission.
We found that Azolla pinnata plants exhibited dose-dependent rapid root abscission in response to the polyamines spermidine and spermine after a substantial time lag (>20 min).
The duration of the time lag decreased in response to high pH and high temperature whereas high light intensity increased the time lag and markedly lowered the rate of abscission.
The oxidation products of polyamines, 1,3-diaminopropane, β-alanine and hydrogen peroxide all failed to initiate root abscission, and hydroxyethyl hydrazine, an inhibitor of polyamine oxidase, did not inhibit spermine-induced root abscission.
Exposure of A.
pinnata to the polyamines did not result in detectable release of NO and did not affect nitrite-dependent NO production.
The finding of polyamine-induced rapid root abscission provides a facile assay for further study of the mode of action of polyamines in plant stress responses.
American Psychological Association (APA)
Gurung, Sushma& Cohen, Michael F.& Fukuto, Jon& Yamasaki, Hideo. 2012. Polyamine-Induced Rapid Root Abscission in Azolla pinnata. Journal of Amino Acids،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-476039
Modern Language Association (MLA)
Gurung, Sushma…[et al.]. Polyamine-Induced Rapid Root Abscission in Azolla pinnata. Journal of Amino Acids No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-476039
American Medical Association (AMA)
Gurung, Sushma& Cohen, Michael F.& Fukuto, Jon& Yamasaki, Hideo. Polyamine-Induced Rapid Root Abscission in Azolla pinnata. Journal of Amino Acids. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-476039
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-476039