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Physiological Responses of Wild and Cultivated Barley to the Interactive Effect of Salinity and Iron Deficiency
Joint Authors
Abdelly, Chedly
Houmani, Hayet
Zribi, Fethia
Gharsalli, Mohamed
Yousfi, Sabeh
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-29
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Literature on the separate effects of salinity and inadequate Fe supply on plant growth and nutrient uptake, concentration, and distribution is abundant but little is known about the interactive effects of these two abiotic constraints.
Here, we investigated the interactive effect of iron availability and salinity on physiological responses of cultivated and wild barley (Hordeum vulgare and H.
maritimum resp.).
Seedlings of both species were grown for 9 days, under complete nutrient solution with or without iron supply.
Then, NaCl treatment was applied at different concentrations (0, 100, 200, and 300 mM) for 60 hours.
After salt exposure, shoot water content of H.
vulgare was significantly reduced as compared to H.
maritimum.
Furthermore, Na+ accumulation in shoots increased parallel to increasing NaCl concentration in the medium.
However, the increase was significantly higher in H.
vulgare than in H.
maritimum.
These responses were associated with lower Fe absorption efficiency photosynthetic parameters in both species.
The reduction was significantly higher in cultivated than in wild barley.
Moreover, phytosiderophore exudation was enhanced in both species by direct (iron free medium) or indirect iron limitation (salt-induced iron limitation).
Such a stimulation of phytosiderophore release was genotype and salt level dependant.
American Psychological Association (APA)
Yousfi, Sabeh& Houmani, Hayet& Zribi, Fethia& Abdelly, Chedly& Gharsalli, Mohamed. 2012. Physiological Responses of Wild and Cultivated Barley to the Interactive Effect of Salinity and Iron Deficiency. ISRN Agronomy،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-447372
Modern Language Association (MLA)
Yousfi, Sabeh…[et al.]. Physiological Responses of Wild and Cultivated Barley to the Interactive Effect of Salinity and Iron Deficiency. ISRN Agronomy No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-447372
American Medical Association (AMA)
Yousfi, Sabeh& Houmani, Hayet& Zribi, Fethia& Abdelly, Chedly& Gharsalli, Mohamed. Physiological Responses of Wild and Cultivated Barley to the Interactive Effect of Salinity and Iron Deficiency. ISRN Agronomy. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-447372
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-447372