Plant Physiology 91:500-504 (1989)
© 1989 American Society of Plant Biologists
Environmental and Stress Physiology
Polyamines as Modulators of Salt Tolerance in Rice Cultivars
R. Krishnamurthy and
K. A. Bhagwat
Plant Physiology Laboratory, Department of Botany, Faculty of Science, M.S. University, Baroda-390 002, India
The effect of NaCl on the endogenous levels of diamine, putrescine and polyamines, spermidine and spermine, was studied in the shoot system of salt-tolerant and salt-sensitive lines of rice (Oryza sativa L.) cultivars during three growth stages. Salt stress increased the levels of diamine and polyamine in varying degrees among nine rice cultivars investigated. Salt tolerant AU1, Co43, and CSC1 were effective in maintaining high concentrations of spermidine and spermine, while the content of putrescine was not significantly altered in all the growth stages when plants were exposed to salinity. The salt sensitivity in rice was associated with excessive accumulation of putrescine and with low levels of spermidine and spermine in the shoot system of salt-sensitive cultivars Co36, CSC2, GR3, IR20, TKM4, and TKM9 under saline condition. One of the possible mechanisms of saline resistance was observed to be due to the highly increased polyamines against the low increase in diamines. Alternatively, the salt sensitivity could be due to high increase of diamines and an incapacity to maintain high levels of polyamines.
This article has been cited by other articles:
|
|
|
|
 
H. Evelin, R. Kapoor, and B. Giri
Arbuscular mycorrhizal fungi in alleviation of salt stress: a review
Ann. Bot.,
December 1, 2009;
104(7):
1263 - 1280.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
A. A. Rodriguez, S. J. Maiale, A. B. Menendez, and O. A. Ruiz
Polyamine oxidase activity contributes to sustain maize leaf elongation under saline stress
J. Exp. Bot.,
November 1, 2009;
60(15):
4249 - 4262.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. Roeder and B. Schink
Syntrophic Degradation of Cadaverine by a Defined Methanogenic Coculture
Appl. Envir. Microbiol.,
July 15, 2009;
75(14):
4821 - 4828.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
F. Zhao, C.-P. Song, J. He, and H. Zhu
Polyamines Improve K+/Na+ Homeostasis in Barley Seedlings by Regulating Root Ion Channel Activities
Plant Physiology,
November 1, 2007;
145(3):
1061 - 1072.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J.-H. Liu, K. Nada, C. Honda, H. Kitashiba, X.-P. Wen, X.-M. Pang, and T. Moriguchi
Polyamine biosynthesis of apple callus under salt stress: importance of the arginine decarboxylase pathway in stress response
J. Exp. Bot.,
August 1, 2006;
57(11):
2589 - 2599.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
W.-W. Hu, H. Gong, and E. C. Pua
The Pivotal Roles of the Plant S-Adenosylmethionine Decarboxylase 5' Untranslated Leader Sequence in Regulation of Gene Expression at the Transcriptional and Posttranscriptional Levels
Plant Physiology,
May 1, 2005;
138(1):
276 - 286.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
Y. Kasukabe, L. He, K. Nada, S. Misawa, I. Ihara, and S. Tachibana
Overexpression of Spermidine Synthase Enhances Tolerance to Multiple Environmental Stresses and Up-Regulates the Expression of Various Stress-Regulated Genes in Transgenic Arabidopsis thaliana
Plant Cell Physiol.,
June 15, 2004;
45(6):
712 - 722.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
K. Liu, H. Fu, Q. Bei, and S. Luan
Inward Potassium Channel in Guard Cells As a Target for Polyamine Regulation of Stomatal Movements
Plant Physiology,
November 1, 2000;
124(3):
1315 - 1326.
[Abstract]
[Full Text]
|
|
|
|
|
