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Role Of Metallothionen And Glutathione-s-transferase Expression In Chlamydomonas Reinhardtii For Detoxification Sewage Water From Some Heavy Metals | 90580
ISSN: 2157-7625

Journal of Ecosystem & Ecography
Open Access

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Role of metallothionen and glutathione-s-transferase expression in Chlamydomonas reinhardtii for detoxification sewage water from some heavy metals

International Pre Conference Workshop on Microbial Ecology & Eco Systems

Abdelhamed M Elkbash, EL-Ayouty Y.M., Rashad Kebeish, Samy and M M

Botany Department, Faculty of Science, Zagazig University, Egypt

ScientificTracks Abstracts: J Ecosys Ecograph

DOI: 10.4172/2157-7625-C2-035

Abstract
The maintenance of ion detoxification in living cells is a fundamental physiological requirement for sustainable their growth, development, and production. Metallothioneins (MTs) are a superfamily of cysteine-rich, low-molecular-weight metalloproteins that bind heavy metal ions. These cytosolic metallopeptides are widely distributed in living organisms and are thought to be involved in metal homeostasis, metal detoxification, and oxidative stress protection. Here in Transgenic Chlamydomonas reihardtii was constructed via cloning and sub cloning with PTRA-GST and PATRA-PT- Smta plasmds. The first one was restricted via ASC1 and BAM and the second restricted by BAM. Their products were purified according to protocol kits and to allowed to ligase. The product was introduced into Agrobacterium-mediated, and then transformed to Chlamydomonas reinhardtii. The transgenic alga was selected on solid TAP medium supplemented with Basta at concentration (12ug\ml). The efficiency of algal trasformation was confirmed by SDS –gel electrophoresis and RT- PCR. To evaluate that toxicity of heavy metal an experiment was conducted in which the wild and transgenic Chlamydomonas reinhardtii allowed to grow in sewage water for six days and the rate of removal heavy metal with calculated. Results revealed that, the transgenic Chlamydomonas reinhardtii has MtIII clearly can have an important role in metal detoxification. Transgenic Chlamydomonas reihardtii with metallothionen gene was selective for sequestration of cytosolic Cd2+. It has been found that MtIII synthesis is related to degree of pollution in an aquatic environment. Keywords: Autophotosynthetic, biomarker, Cd2+, Chlamydomonas reihardtii, glutathione-s-transferase, heavy metals, metallothionein.
Biography

Abdelhamed M Elkbash is currently a researcher at Biotechnology Labs Faculty of Science, Zagazig University, Egypt. He has Bachelor of Science, Alazher University, Microbiology Department. His scientific grade (Excellent). He works as a Biologist in the Central Lab. for drinking water, Behira Water and Drainage Company (BWADC), where he is responsible for water and wastewater treatment analysis (chemical and microbiological) for surface and ground water. He accumulated 13-years of experience in different Labs, and implementation of ISO 17025 (general requirement for competence of testing and calibration laboratories), and ISO 22000 (food safety management system) applicable for safety of drinking water.

E-mail: [email protected]

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