Copper-tolerant rhizosphere bacteria—characterization and assessment of plant growth promoting factors

dc.contributor.authorRathi, Manohari
dc.contributor.authorYogalakshmi, K. N.
dc.date.accessioned2017-07-25T09:59:50Z
dc.date.accessioned2024-08-14T06:40:35Z
dc.date.available2017-07-25T09:59:50Z
dc.date.available2024-08-14T06:40:35Z
dc.date.issued2017
dc.description.abstractRemediation of heavy metal contaminated soil is a major problem or concern worldwide. Heavy metal accumulation in the soil is increasing day by day by industries, mines, agriculture, fuel combustion and municipal waste discharge. Such contaminated soils harbour a large number of resistant microbial populations. Screening and isolation of such microbes would be utilized for natural remediation of metal contaminated soils. Therefore, in the present study, highly copper-tolerant bacteria from rhizosphere soil of Cynodon dactylon grown in brass effluent contaminated soil were isolated and assessed for plant growth promoting factors. A total of 61 isolates were isolated from the rhizosphere of three contaminated sites. Six highly copper-tolerant isolates named as MYS1, MYS2, MYS3, MYS4, MYS5 and MYS6 were isolated through enrichment in copper containing nutrient broth. 16S rRNA analysis revealed that the isolates were from genera Stenotrophomonas and Brevundimonas and belong to classes Alpha Proteobacteriacea and Gamma Proteobacteriacea, respectively. Strain MYS1, MYS2 and MYS4 showed 95–99% similarity with Stenotrophomonas acidaminiphila, strain MYS3 and MYS5 showed 99 and 97% similarity with Stenotrophomonas maltophilia and Stenotrophomonas sp. Strain MYS6 showed 94% similarity with Brevundimonas diminuta. All the rhizobacteria showed plant growth promoting traits such as production of siderophores, indole acetic acid (IAA), phosphate solubilization and 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity. From this study, we can conclude that all the isolates possess copper resistance and potential for phytoremediation of copper polluted soils.en_US
dc.identifier.citationManohari R, Yogalakshmi K N (2017), “Copper-tolerant rhizosphere bacteria—characterization and assessment of plant growth promoting factors”, Environmental Science and Pollution Research, Vol 10 (24), Pp 9723-9733en_US
dc.identifier.doi10.1007/s11356-017-8624-2
dc.identifier.issnPrint 0944-1344
dc.identifier.issnOnline 1614-7499
dc.identifier.urihttps://kr.cup.edu.in/handle/32116/198
dc.identifier.urlhttps://link.springer.com/article/10.1007%2Fs11356-017-8624-2
dc.language.isoen_USen_US
dc.publisherSpringeren_US
dc.subjectRhizosphereen_US
dc.subjectCopper-tolerant bacteriaen_US
dc.subject16S rRNAen_US
dc.subjectEnrichmenten_US
dc.subjectStenotrophomonas sp.en_US
dc.subjectBrevundimonas sp.en_US
dc.subjectBrass contaminated soilen_US
dc.subjectHeavy Metalen_US
dc.titleCopper-tolerant rhizosphere bacteria—characterization and assessment of plant growth promoting factorsen_US
dc.title.journalEnvironmental Science and Pollution Researchen_US
dc.typeArticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
2.pdf
Size:
1.65 MB
Format:
Adobe Portable Document Format

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Plain Text
Description: