Plant growth promoting strain Bacillus cereus (RCS-4 MZ520573.1) enhances phytoremediation potential of Cynodon dactylon L. in distillery sludge
Article
Tripathi, S., Yadav, S., Sharma, P., Purchase, D., Syed, A. and Chandra, R. 2022. Plant growth promoting strain Bacillus cereus (RCS-4 MZ520573.1) enhances phytoremediation potential of Cynodon dactylon L. in distillery sludge. Environmental Research. 208. https://doi.org/10.1016/j.envres.2022.112709
Type | Article |
---|---|
Title | Plant growth promoting strain Bacillus cereus (RCS-4 MZ520573.1) enhances phytoremediation potential of Cynodon dactylon L. in distillery sludge |
Authors | Tripathi, S., Yadav, S., Sharma, P., Purchase, D., Syed, A. and Chandra, R. |
Abstract | Elevated levels of physico-chemical pollution including organic pollutants, metals and metalloids were detected in distillery sludges despite of the anaerobic digestion treatment prior to disposal. The concentrations of the metals were (in mg kg−1): Fe (400.98 ± 3.11), Zn (17.21 ± 0.54), Mn (8.32 ± 0.42), Ni (8.00 ± 0.98), Pb (5.09 ± 0.43), Cr (4.00 ± 0.98), and Cu (3.00 ± 0.10). An invasive grass species, Cynodon dactylon L., demonstrated its ability to remediate the distillery waste sludge (DWS) in the field study. All the physico-chemical parameters of the sludge significantly improved (up to 70–75%) in the presence of Cynodon dactylon L. (p < 0.001) than the control with no plant growth. The highest phytoremediation capacity was associated with the uptake of Fe in the root and shoot. Sludge samples collected near the rhizosphere also showed lower amount of organic compounds compared to control sludge samples. Metal resistant Bacillus cereus (RCS-4 MZ520573.1) was isolated from the rhizosphere of Cynodon dactylon L. and showed potential to enhance the process of phytoremediation via plant growth promoting activities such as production of high level of ligninolytic enzymes: manganese peroxidase (35.98 U), lignin peroxidase (23.98 U) and laccase (12.78 U), indole acetic acid (45.87(mgL−1), phosphatase activity (25.76 mg L−1) and siderophore production (23.09 mg L−1). This study presents information on the performance of Cynodon dactylon L., an abundant invasive perennial grass species and its associated plant growth promoting rhizobacteria demonstrated good capacity to remediate and restore contaminated soil contained complex organic and inorganic pollutants, they could be integrated into the disposal system of distillery sludge to improve the treatment efficiency. |
Keywords | Bacillus cereus; Cynodon dactylon L; Ligninolytic enzyme; Metal accumulation; Pollution reduction |
Publisher | Elsevier |
Journal | Environmental Research |
ISSN | 0013-9351 |
Electronic | 1096-0953 |
Publication dates | |
Online | 12 Jan 2022 |
15 May 2022 | |
Publication process dates | |
Submitted | 25 Sep 2021 |
Accepted | 06 Jan 2022 |
Deposited | 20 Jan 2022 |
Output status | Published |
Accepted author manuscript | License |
Copyright Statement | © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.envres.2022.112709 |
Scopus EID | 2-s2.0-85122911185 |
Web of Science identifier | WOS:000751893000007 |
Language | English |
https://repository.mdx.ac.uk/item/89q12
Download files
64
total views68
total downloads2
views this month3
downloads this month