Potential of marine sponge-derived fungi in the aquaculture system

Abstract. Bahry MS, Radjasa OK, Trianto A. 2021. Potential of marine sponge-derived fungi in the aquaculture system. Biodiversitas 22: 2883-2892. Organic waste from is one triggers disease outbreaks and a decrease water quality that urgently needs to be resolved. Indonesia has high diversity sponges including their associated microorganisms potential field biotechnology. This study aimed determine enzymatic anti-vibrio activity with identify fungi. The specimen was collected Samalona Island, South Sulawesi, Indonesia. assay conducted by using plug method determined clear zone around fungal isolates. Fungal identification carried out molecularly universal primers ITS1 ITS4 phylogenetic tree analysis. isolates were screened for extracellular enzyme (amylase, cellulase, protease) against Vibrio parahaemolyticus, V. harveyi, vulnificus). A total three have been isolated sponge Monanchora sp. Isolate SL 3 SP 3.3 had activities Enzymatic Indeks (EI) 3.95±0.17 on amylase, 3.75±0.36 5.38±0.30 protease. highest obtained harveyi an inhibition diameter 4.82 ±0.37 mm. results showed isolate SL3SP3.3 sequence length 638 bp closely related Trichoderma reesei a.k.a Hypocrea jecorina similarity value 99.69%.