Regulation of Growth and Carbohydrate Metabolism in Rice (Oryza Sativa L.) seedlings by Selenium and Sulphate

Debarati Das, Prabal Das, Asok K Biswas


Selenium is an essential and also toxic trace element for organisms including plants. We studied the role of selenium (Na2SeO4) on growth and carbohydrate metabolism and its interaction with sulphate (Na2SO4) in rice (Oryza sativa L. cv. Satabdi) seedlings. Low concentration of selenium (2µM) showed stimulatory effect on growth as opposed to its higher concentration (50µM). Selenium was found to accumulate in a dose dependent linear pattern in the plant tissues. Exposure to selenate increased both reducing and non reducing sugar contents in the rice seedlings accompanied with an increase in the activities of sugar metabolizing enzymes like Sucrose Synthase (EC and Sucrose Phosphate Synthase (EC An increase in Starch Phosphorylase (EC activity corresponded with the reduction in starch contents in the rice seedlings. Since Selenium is chemically analogous to sulphate, simultaneous application of sodium sulphate (10mM) and selenate (Na2SeO4) was found to ameliorate partially or totally all the tested parameters under selenate treatment alone resulting in alteration of growth and development of the test seedlings.

Full Text:



Copyright (c) 2017 Debarati Das, Prabal Das, Asok K Biswas

License URL:

Journal of Plant Studies   ISSN 1927-0461 (Print)   ISSN 1927-047X (Online)  E-mail:

Copyright © Canadian Center of Science and Education

To make sure that you can receive messages from us, please add the '' domain to your e-mail 'safe list'. If you do not receive e-mail in your 'inbox', check your 'bulk mail' or 'junk mail' folders.