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AGUS SABDONO
Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Diponegoro. Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275, Central Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Exploration culturable bacterial symbionts of sponges from Ternate Islands, Indonesia AGUS TRIANTO; OCKY KARNA RADJASA; AGUS SABDONO; SAKTI IMAM MUCHLISSIN; RACHMAT AFRIYANTO; SULISTIOWATI SULISTIOWATI; SEPTHY KUSUMA RADJASA; PHILLIP CREWS; ERIN MCCAULEY
Biodiversitas Journal of Biological Diversity Vol. 20 No. 3 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200323

Abstract

Abstract. Trianto A, Radjasa OK, Sabdono A, Muchlissin SI, Afriyanto R, Sulistiowati, Radjasa SK, Crews P, Mccauley E. 2019. Exploration culturable bacterial symbionts of sponges from Ternate Islands, Indonesia. Biodiversitas 20: 776-782. Multidrug resistance, (MDR) bacteria seriously threaten human health which causes a more difficult and extends the treatment period, and increases the risk of death. Sponges-associated bacteria, a well known for their rich in chemical classes and bioactivities, are the prolific producers of bioactive compounds. In order to search new sources of antibacterial compounds, we collected a total of 55 sponges from Ternate Island that provided 324 bacterial isolates. The data showed that sponges-isolates ratio in the anthropogenic area was relatively higher than the other collection sites. The isolates were screened for the antibacterial activity against Klebsiella pneumoniae-RSDK, K. pneumoniae-UI, Pseudomonas aeruginosa A-UI, P. aeruginosa B-UI, Staphylococcus aureus-UI, MRSA-UI, MRPA-UI, Bacillus subtilis-RSDK, B. subtilis-UI, Salmonella typhi-UI, and MDR E. coli. The isolates were able to inhibit 0-7 the pathogenic bacteria on 24 h and 48 h. The most active bacteria were identified as B. clausii, V. chiguensis, B. tropicus, P. marcusii, B. tropicus, V. parahaemolyticus, B. paramycoides, and V. dokdonensis. In conclusion, the sponges in the anthropogenic affected area have higher bacterial symbionts than that of in the pristine area. In this study, the results of isolation of the symbiont bacteria from sponge samples were obtained and morphologically observed for these bacterial isolates. The number of bacteria that were isolated were 133 bacterial isolates and ten isolates including producing active secondary metabolites
Bacteria associated with tunicate, Polycarpa aurata, from Lease Sea, Maluku, Indonesia exhibiting anti-multidrug resistant bacteria DIAH AYUNINGRUM; RHESI KRISTIANA; AYUNDA AINUN NISA; SEPTHY KUSUMA RADJASA; SAKTI IMAM MUCHLISSIN; OCKY KARNA RADJASA; AGUS SABDONO; AGUS TRIANTO
Biodiversitas Journal of Biological Diversity Vol. 20 No. 4 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200404

Abstract

Abstract. Ayuningrum D, Kristiana R, Nisa AA, Radjasa SK, Muchlissin SI, Radjasa OK, Sabdono A, Trianto A. 2019. Bacteria associated with tunicate, Polycarpa aurata, from Lease Sea, Maluku, Indonesia exhibiting anti-multidrug resistant bacteria. Biodiversitas 20: 956-964. Tunicate is a rich secondary metabolites producer with various biological activities whether as an original producer or produced by the associated microorganisms. In this study, a total of 11 tunicate specimens were identified as Polycarpa aurata with four color variations based on morphological characteristic and COI gene identification and BLAST analysis. The P. aurata associated-bacteria were isolated and tested for antimicrobial activity against multi-drug resistant (MDR) bacteria. A total of 86 axenic isolates were successfully purified. Furthermore, nine isolates (10.5%) exhibited antibacterial activity on preliminary screening. Nine prospective isolates were fermented in respective medium (Zobell 2216, modified M1 or modified ISP2 media) then extracted using ethyl acetate. The ethyl acetate extracts from liquid fermentation were tested against MDR Escherichia coli, MDR Bacillus cereus, Methicillin-Resistant Staphylococcus aureus (MRSA) and Methicillin-Sensitive and Staphylococcus aureus (MSSA). As a result, seven isolates (8.1%) still retained the activity at the extract concentration 150 µg/disk. Molecular analysis based on 16S rDNA sequencing revealed the most active isolates, TSB 47, TSC 10 and TSB 34 identified as Bacillus tropicus, Vibrio alginolyticus and Virgibacillus massiliensis, with BLAST homology 99%.
Short Communication: Behavioral study on Anguilla bicolor using a modified trap design at laboratory scale Aristi Dian Purnama Fitri; Herry Boesono; Faik Kurohman; Bogi Budi Jayanto; Desca Estiyani Dewi; Agus Sabdono
Biodiversitas Journal of Biological Diversity Vol. 20 No. 8 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200809

Abstract

Abstract. Fitri ADP, Boesono H, Kurohman F, Jayanto BB, Dewi DE, Sabdono A. 2019. Short Communication: Behavioral study on Anguilla bicolor using a modified trap design at laboratory scale. Biodiversitas 20: 2159-2165. The information on the behavioral juvenile eels Anguilla bicolor is urgently needed as basic design of selective and sustainable traps. The objectives of this study were to find out and analyze the behavioral pattern and characteristics of A. bicolor elvers in the modified and non-modified eel traps. The test organism, A. bicolor juvenile eels with 150-170 mm in length, were obtained from Segara Anakan waters, Cilcacap. The 2 trap designs, which were modifications of the 450 mm long PVC eel trap, with and without the addition of bait hole, were used in this study. All experiments were carried out in the laboratory of Fish Behavior, Diponegoro University, Semarang, Indonesia. The eel characters and response time were recorded using a handy camera that placed on top of the aquariums. The results indicated six types of A. bicolor behavior in response to the modification of eel traps. Moreover, the trap design with an additional hole on the wall, with or without bait, was proven to have no significant effect on the response time. While trap without column and bait possessed the fastest response time at which elver penetrated to the trap (p-value ? 0.05). Furthermore, these results indicated that A. bicolor elver gained entrance into the trap, in an attempt to take shelter.
Co-Authors AGUS TRIANTO Aristi Dian Purnama Fitri AYUNDA AINUN NISA Bogi Budi Jayanto Desca Estiyani Dewi DIAH AYUNINGRUM ERIN MCCAULEY Faik Kurohman Herry Boesono OCKY KARNA RADJASA PHILLIP CREWS RACHMAT AFRIYANTO RHESI KRISTIANA SAKTI IMAM MUCHLISSIN SAKTI IMAM MUCHLISSIN SEPTHY KUSUMA RADJASA SEPTHY KUSUMA RADJASA SULISTIOWATI SULISTIOWATI