Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology
Vol 12, No 1 (2017): May 2017

Metagenomics-Based Cloning of Amilase-Encoding Genes from the Uncultured Symbiotic Bacteria of a Marine Sponge Theonella swinhoei from Kapoposang Island, South Sulawesi

Priyono, Franciscus Edi (Unknown)
Zilda, Dewi Seswita (Unknown)
Kusnadi, Yudi (Unknown)
Hadi, Tri A (Unknown)
Nurrachmi, Irvina (Unknown)
Uria, Agustinus Robert (Unknown)

Article Info

Publish Date
01 May 2017


Marine sponges have recently been recognized as the source ofenzymes, including members of hydrolases. Hydrolytic enzymes are extracellularly produced by sponge-associated bacteria to mediate the metabolism of complex organic matters, thereby assisting the sponge hosts in nutrition and metabolic processes. Among hydrolytic enzymes, amilaseshas attracted increasing attention due to their potential industrial applications. This research work was aimed atutilizing functional metagenomicsapproach for the discovery of amilases derived from the uncultured symbiotic bacteriaof the Indonesian marine sponge Theonella swinhoei. Weinitially constructed a small-insert metagenomiclibrary in Escherichia coliby cloning of metagenome in the size range of5-20 kb prepared from the sponge’s microbiome. Further functional screening of the resulting metagenomic library led to the isolation of two recombinant E. coli clones potentially harboring amilase genes, as indicated by the presence of clearing zones surroinding the selective medium containing 1% amilum. 

Copyrights © 2017

Journal Info





Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology


Squalen publishes original and innovative research to provide readers with the latest research, knowledge, emerging technologies, postharvest, processing and preservation, food safety and environment, biotechnology and bio-discovery of marine and fisheries. The key focus of the research should be ...