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Physiological and biochemical parameters for evaluation and clustering of rice cultivars differing in salt tolerance at seedling stage
Joint Authors
Chunthaburee, Sumitahnun
Dongsansuk, Anoma
Sanitchon, Jirawat
Pattanagul, Wattana
Theerakulpisut, Piyada
Source
Saudi Journal of Biological Sciences
Issue
Vol. 23, Issue 4 (31 Jul. 2016), pp.467-477, 11 p.
Publisher
Publication Date
2016-07-31
Country of Publication
Saudi Arabia
No. of Pages
11
Main Subjects
Abstract EN
Salinity tolerance levels and physiological changes were evaluated for twelve rice cultivars, including four white rice and eight black glutinous rice cultivars, during their seedling stage in response to salinity stress at 100 mM NaCl.
All the rice cultivars evaluated showed an apparent decrease in growth characteristics and chlorophyll accumulation under salinity stress.
By contrast an increase in proline, hydrogen peroxide, peroxidase (POX) activity and anthocyanins were observed for all cultivars.
The K+/Na+ ratios evaluated for all rice cultivars were noted to be highly correlated with the salinity scores thus indicating that the K+/Na+ ratio serves as a reliable indicator of salt stress tolerance in rice.
Principal component analysis (PCA) based on physiological salt tolerance indexes could clearly distinguish rice cultivars into 4 salt tolerance clusters.
Noteworthy, in comparison to the salt-sensitive ones, rice cultivars that possessed higher degrees of salt tolerance displayed more enhanced activity of catalase (CAT), a smaller increase in anthocyanin, hydrogen peroxide and proline content but a smaller drop in the K+/Na+ ratio and chlorophyll accumulation.
American Psychological Association (APA)
Chunthaburee, Sumitahnun& Dongsansuk, Anoma& Sanitchon, Jirawat& Pattanagul, Wattana& Theerakulpisut, Piyada. 2016. Physiological and biochemical parameters for evaluation and clustering of rice cultivars differing in salt tolerance at seedling stage. Saudi Journal of Biological Sciences،Vol. 23, no. 4, pp.467-477.
https://search.emarefa.net/detail/BIM-689523
Modern Language Association (MLA)
Pattanagul, Wattana…[et al.]. Physiological and biochemical parameters for evaluation and clustering of rice cultivars differing in salt tolerance at seedling stage. Saudi Journal of Biological Sciences Vol. 23, no. 4 (Jul. 2016), pp.467-477.
https://search.emarefa.net/detail/BIM-689523
American Medical Association (AMA)
Chunthaburee, Sumitahnun& Dongsansuk, Anoma& Sanitchon, Jirawat& Pattanagul, Wattana& Theerakulpisut, Piyada. Physiological and biochemical parameters for evaluation and clustering of rice cultivars differing in salt tolerance at seedling stage. Saudi Journal of Biological Sciences. 2016. Vol. 23, no. 4, pp.467-477.
https://search.emarefa.net/detail/BIM-689523
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 475-477
Record ID
BIM-689523