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31028

ISOLATION AND IDENTIFICATION OF BACILLIUS SUBTILIS FROM FISH FARMS WATER AND EVALUATION OF ITS BIOREMEDIATION EFFECT AGAINST HEAVY METALS (CADMIUM AND CUPPER)

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Last updated: 22 Jan 2023

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Abstract

High concentrations of some heavy metals (cadmium (Cd) and cupper (Cu) were found in industrial and sewage water that supplied El Manzala fish farms in Egypt. The metal tolerant bacterial strain Bacillius subtilis was isolated and identified morphologically and biochemically followed by 16S rRNA gene sequence analysis. The minimum inhibitory concentrations of Cd and Cu against B. subtilis that were (6 and 20) mg/l, respectively. In the presence of sub lethal concentrations of Cd and Cu, the B. subtilis strain showed an obvious metal removing potential. The environmental conditions as pH value and incubation temperature were studied to estimate the more efficient up-taking of Cd+2 and Cu+2, ions. The maximum uptake (5 and 10) mg/l of Cd and Cu achieved at pH7and 8 for at (25- 30)ºC, while pH 5 and 9 and incubation temp10 and 40ºC showed the lowest Cd+2 and Cu+2 sorption by bacterial biomass, respectively the obtained results could be an advantage for large scale treatment of contaminated sites.

DOI

10.21608/bfszu.2017.31028

Authors

First Name

Nadia

Last Name

Awny

MiddleName

M.

Affiliation

Botany dept., Faculty of science, Zagazig University

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First Name

Abd El-Gawad A. S

Last Name

Abd El-Gawad A. S

MiddleName

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Affiliation

Central Laboratory for Aquaculture Research (CLAR), Agricultural Research Center (ARC).

Email

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City

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Orcid

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First Name

Azza

Last Name

Abdelrahman

MiddleName

M

Affiliation

Central Laboratory for Aquaculture Research (CLAR), Agricultural Research Center (ARC).

Email

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City

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Orcid

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First Name

Samar

Last Name

Negm

MiddleName

S

Affiliation

Central Laboratory for Aquaculture Research (CLAR), Agricultural Research Center (ARC).

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-

City

-

Orcid

-

Volume

2017

Article Issue

1

Related Issue

5291

Issue Date

2017-04-01

Receive Date

2019-05-03

Publish Date

2017-04-01

Page Start

49

Page End

60

Print ISSN

1110-1555

Link

https://bfszu.journals.ekb.eg/article_31028.html

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https://bfszu.journals.ekb.eg/service?article_code=31028

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4

Type

Original Article

Type Code

838

Publication Type

Journal

Publication Title

Bulletin of Faculty of Science, Zagazig University

Publication Link

https://bfszu.journals.ekb.eg/

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Article

Created At

22 Jan 2023