AJ Life Sci. 2020, 3 (2): 164-174

Selenium resistant bacteria enhance Zea mays growth parameters under selenium stress

Ali Rehman 1, Anam 2, Hira Saleem 2 ,Hafsa Tariq 2 ,Saima Javed 2 and Muhammad Faisal 2

1 Department of Allied Health Sciences Superior University Raiwind Road Lahore, 54000, Lahore, Pakistan
2 Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus,Lahore, 54590, Pakistan.



Abstract

Heavy metals normally accumulate in the environment and as a resultthey create various problems to life, especially to plants. In this studytwo selenium resistant bacteria, Bacillus pumils strain CrK08 andBacillus licheniformis strain AsK03 were checked for their effect inenhancing growth of Zea mays in the clay pots experiment, underselenium stress. Both strains significantly promoted root length incontrol and in autoclaved soil. Number of roots from plant base wasreduced in control and autoclave soil respectively. Moreover, the freshweight and dry weight were reduced in control and autoclave soil plants. In selenium treated plants, fresh weight was high than in the non-treated plants. However, Strains also produced an increase in soluble protein content. Indole acetic acid (IAA) content was enhanced to and, while acid phosphatase activity was significantlylower in inoculated plants than the controls and peroxidase content reduced. Selenium content in control plants was high as compared totreated plants. So, these strains promote plant growth under Se stress (17 mg kg-1) in soil.

Keywords: Selenium, heavy metal, Zea mays, Bacillus

Received

October 29, 2019

Received Revised

November 29, 2020

Accepted

December 1, 2020

Available Online

December 31, 2020


Corresponding author email:

alirehman.ar11@gmail.com
Ali.rehman@superior.edu.pk

How to Cite

Rehman A, Anam, Saleem H, Tariq H, Javed S, Faisal M. Selenium resistant bacteria enhance Zea mays growth parameters under selenium stress. Abasyn Journal of Life Sciences 2020; 3(2): 164-174.

Abasyn Journal of Life Sciences , ISSN (online): 2663-1040, Published by Abasyn University