Thermo-Protective Role of 28-Homobrassinolide in Brassica juncea Plants - American Journal of Plant Sciences

AJPS > Vol.5 No.15, July 2014

American Journal of Plant Sciences

Volume 5, Issue 15 (July 2014)

ISSN Print: 2158-2742 ISSN Online: 2158-2750

Google-based Impact Factor: 1.57 Citations

Thermo-Protective Role of 28-Homobrassinolide in Brassica juncea Plants ()

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Download as PDF (Size: 1622KB) PP. 2431-2439

DOI: 10.4236/ajps.2014.515257 3,365 Downloads 4,832 Views Citations

Author(s)

Sirhindi Geetika, Kaur Harpreet, Bhardwaj Renu, Kaur Nirmal Spal, Sharma Poonam

Affiliation(s)

Department of Botanical and Environmental Sciences, GNDU, Amritsar, India.
Department of Botany, Punjabi University, Patiala, India.

ABSTRACT

The present work was undertaken to study the effects of 28-homobrassinolide on growth, stress markers, antioxidative enzyme [superoxide dismutase (EC 1.15.1.1), guaiacol peroxidase (EC 1.11.1.7), catalase (EC 1.11.1.6) ] activities and protein content in 10 days old seedlings of Brassica juncea L. treated with different degrees (4°C, 44°C) of temperature. 28-homobrassinolide at 10^-⁹ M concentration lowered temperature stress. Different degrees of temperature treatment alone decreased the enzyme activities and protein concentration of seedlings. However, pre-sowing treatments of 28-homobrassinolide lowered the temperature stress and enhanced the contents of MDA and proline, activities of enzymes and protein concentration of seedlings.

KEYWORDS

Antioxidative Enzymes, 28-Homobrassinolide, Brassinosteroids, Temperature Stress, Lipid Peroxidation, Guaiacol Peroxidase, Catalase

Share and Cite:

Geetika, S. , Harpreet, K. , Renu, B. , Spal, K. and Poonam, S. (2014) Thermo-Protective Role of 28-Homobrassinolide in Brassica juncea Plants. American Journal of Plant Sciences, 5, 2431-2439. doi: 10.4236/ajps.2014.515257.

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