Open Access
ARTICLE
Ameliorative Role of Pre-Sowing Proline Treatment in Coriandrum sativum L. Seedlings under Mercury Toxicity
Dhriti Kapoor1, Kapani Kavani1, Amandeep Rattan2, Marco Landi3,*, Anket Sharma4,*
1 Department of Botany, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, 144411, India
2 Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
3 Department of Agriculture, Food and Environment, University of Pisa, Pisa, 56124, Italy
4 State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
* Corresponding Authors: Anket Sharma. Email: ; Marco Landi. Email:
Phyton-International Journal of Experimental Botany 2021, 90(2), 489-501. https://doi.org/10.32604/phyton.2021.012359
Received 27 June 2020; Accepted 30 September 2020; Issue published 07 February 2021
Abstract
Heavy metal toxicity is one of the major ecosystem concerns globally in present time and is also responsible for
significant threat to agronomic crops. The current work was conducted to investigate the possible ameliorative
role of proline in
Coriandrum sativum L. seedlings treated with mercury (Hg). The seedlings were exposed to
different concentrations of Hg (0, 0.1, 0.3 and 0.5 mM) for 20 days. The effects of pre-sowing treatment with proline were studied on
C. sativum seedlings in terms of pigment (chlorophylls, carotenoids and anthocyanins), malondialdehyde (MDA), antioxidant compound (glutathione, total phenolic compounds, ascorbic acid) and
osmolytes (proline, glycine betaine). Additionally, activities of antioxidant enzymes, namely catalase (CAT),
superoxide dismutase (SOD), ascorbate peroxidase (APX) and dehydroascorbate reductase (DHAR) were also
studied. A strong decline of photosynthetic pigment concentrations was observed in leaves of
C. sativum under
Hg toxicity. Treatment of seeds with proline reduced the loss of photosynthetic pigments, counteract Hg-triggered
oxidative stress, likely preserving the functionality of antioxidant apparatus under Hg stress. The increment of
total polyphenols and glycine betaine also contributed in ameliorating Hg toxicity, suggesting the use of exogenous proline as a potential method to enhance the plant tolerance against heavy metal stress.
Keywords
Cite This Article
APA Style
Kapoor, D., Kavani, K., Rattan, A., Landi, M., Sharma, A. (2021). Ameliorative role of pre-sowing proline treatment in coriandrum sativum L. seedlings under mercury toxicity. Phyton-International Journal of Experimental Botany, 90(2), 489-501. https://doi.org/10.32604/phyton.2021.012359
Vancouver Style
Kapoor D, Kavani K, Rattan A, Landi M, Sharma A. Ameliorative role of pre-sowing proline treatment in coriandrum sativum L. seedlings under mercury toxicity. Phyton-Int J Exp Bot. 2021;90(2):489-501 https://doi.org/10.32604/phyton.2021.012359
IEEE Style
D. Kapoor, K. Kavani, A. Rattan, M. Landi, and A. Sharma "Ameliorative Role of Pre-Sowing Proline Treatment in Coriandrum sativum L. Seedlings under Mercury Toxicity," Phyton-Int. J. Exp. Bot., vol. 90, no. 2, pp. 489-501. 2021. https://doi.org/10.32604/phyton.2021.012359
Citations