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Bacterial Detoxification of Copper and Its Impacts on Germination Indices of Barley and Mung Bean

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Last updated: 01 Jan 2025

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Abstract

 ON ACCOUNT of incessant human activities, copper is ……...accumulated in the environment at elevated concentrations that induce harmful influences on all kinds of living organisms. An oxic bioreactor was employed to transform copper ions into copper particles using volatile metabolites of Escherichia coli culture. SEM and EDX analysis of the transformed copper showed the formation of elongated particles with 1-5 μm in length comprising of copper, sulfur, carbon, oxygen and nitrogen elements. Mung bean seeds and barley grains exposed to ionic copper demonstrated low germination and apparent decline of seedlings growth parameters while higher germination and growth rates were recorded with those treated with copper particles. At the same time, an enhanced POD activity was noticed with all Cu treatments, CAT activity seemed to be induced in response to ionic Cu only meanwhile APX activity was markedly affected with both types of Cu. Furthermore, seedlings subjected to Cu particles showed higher protein contents. Toxicity reduction of copper treated with E. coli volatiles was ascribed to the decrease of the mobile copper concentration as a result of interaction with vaporized chelators that reduce bioavailability of copper.

DOI

10.21608/ejbo.2016.3777

Keywords

copper, Detoxification, E. coli, Antioxidant enzymes, Hordeum vulgare, Vigna radiata

Volume

56

Article Issue

3

Related Issue

507

Issue Date

2016-09-01

Receive Date

2016-06-09

Publish Date

2016-09-30

Page Start

817

Page End

835

Print ISSN

0375-9237

Online ISSN

2357-0350

Article File

EJBO_Volume 56_Issue 3_Pages 817-835.pdf

PDF . 600.1kB

Link

https://ejbo.journals.ekb.eg/article_3777.html

Detail API

https://ejbo.journals.ekb.eg/service?article_code=3777

Order

17

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Original Article

Type Code

111

Publication Type

Journal

Publication Title

Egyptian Journal of Botany

Publication Link

https://ejbo.journals.ekb.eg/

MainTitle

Bacterial Detoxification of Copper and Its Impacts on Germination Indices of Barley and Mung Bean

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Article

Created At

22 Jan 2023