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Brassinolide Increases Potato Root Growth In Vitro in a Dose-Dependent Way and Alleviates Salinity Stress
Joint Authors
Hu, Yueqing
Xia, Shitou
Su, Yi
Wang, Huiqun
Luo, Weigui
Su, Shengying
Xiao, Langtao
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Brassinosteroids (BRs) are steroidal phytohormones that regulate various physiological processes, such as root development and stress tolerance.
In the present study, we showed that brassinolide (BL) affects potato root in vitro growth in a dose-dependent manner.
Low BL concentrations (0.1 and 0.01 μg/L) promoted root elongation and lateral root development, whereas high BL concentrations (1–100 μg/L) inhibited root elongation.
There was a significant (P<0.05) positive correlation between root activity and BL concentrations within a range from 0.01 to 100 μg/L, with the peak activity of 8.238 mg TTC·g−1 FW·h−1 at a BL concentration of 100 μg/L.
Furthermore, plants treated with 50 μg/L BL showed enhanced salt stress tolerance through in vitro growth.
Under this scenario, BL treatment enhanced the proline content and antioxidant enzymes’ (superoxide dismutase, peroxidase, and catalase) activity and reduced malondialdehyde content in potato shoots.
Application of BL maintain K+ and Na+ homeostasis by improving tissue K+/Na+ ratio.
Therefore, we suggested that the effects of BL on root development from stem fragments explants as well as on primary root development are dose-dependent and that BL application alleviates salt stress on potato by improving root activity, root/shoot ratio, and antioxidative capacity in shoots and maintaining K+/Na+ homeostasis in potato shoots and roots.
American Psychological Association (APA)
Hu, Yueqing& Xia, Shitou& Su, Yi& Wang, Huiqun& Luo, Weigui& Su, Shengying…[et al.]. 2016. Brassinolide Increases Potato Root Growth In Vitro in a Dose-Dependent Way and Alleviates Salinity Stress. BioMed Research International،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1099008
Modern Language Association (MLA)
Hu, Yueqing…[et al.]. Brassinolide Increases Potato Root Growth In Vitro in a Dose-Dependent Way and Alleviates Salinity Stress. BioMed Research International No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1099008
American Medical Association (AMA)
Hu, Yueqing& Xia, Shitou& Su, Yi& Wang, Huiqun& Luo, Weigui& Su, Shengying…[et al.]. Brassinolide Increases Potato Root Growth In Vitro in a Dose-Dependent Way and Alleviates Salinity Stress. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1099008
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1099008