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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Jurnal Akuakultur Indonesia ACTA VETERINARIA INDONESIANA Hemera Zoa Jurnal Sain Veteriner Buletin Peternakan Jurnal Veteriner JURNAL KIMIA SAINS DAN APLIKASI Medical Journal of Indonesia Jurnal Riset Veteriner Indonesia (Journal of The Indonesian Veterinary Research) Biodidaktika : Jurnal Biologi dan Pembelajarannya Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Aquaculture Journal Jurnal Riset Akuakultur Jurnal Medik Veteriner ARSHI Veterinary Letters Berkala Penelitian Hayati Jurnal Kedokteran Hewan Jurnal Medika Veterinaria
Agustin Indrawati
Bagian Mikrobiologi Medik, Departemen Ilmu Penyakit Hewan Dan Kesmavet, Fakultas Kedokteran Hewan Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Physics Social Sciences Veterinary Other

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Journal : Indonesian Aquaculture Journal

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Lactococcus garvieae: CHARACTERIZATION AND ABILITY TO INHIBIT THE GROWTH OF AQUACULTURE PATHOGENIC BACTERIA Mawardi, Mira; Indrawati, Agustin; Lusiastuti, Angela Mariana; Wibawan, I Wayan Teguh
Indonesian Aquaculture Journal Vol 19, No 1 (2024): (June, 2024)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.19.1.2024.87-98

Abstract

Lactococcus garvieae is a gram-positive ovoid cocci bacterium formerly classified as a member of the Lactococcus genus. This study aims to isolate L. garvieae from catfish rearing pond and characterize it as a potential probiotic candidate. L. garvieae was identified and characterized through phenotypic and genotypic observation, genomic % G~C content analysis, cell surface hydrophobicity assays, acidification test, in vitro antagonism, and a profile of antimicrobial activities. The MT597595.1 accession number corresponds to L. garvieae, as determined by a molecular identification test. Biochemical characterization was performed using API 50 CH kit. The genomics %G~C content of L. garvieae was 51.8. Findings from acidification ability tests, in vitro antagonism tests, and the ability of bacteria to grow in broth medium at pH 4 reveal that L. garvieae can inhibit the growth of Aeromonas hydrophila, Streptococcus agalactiae, Streptococcus iniae, and Edwardsiella ictaluri. However, it does not suppress the growth of L. garvieae  Edwardsiella tarda. Remarkably, L. garvieae has the ability to reduce the pH of neutral broth medium turning it acidic. Furthermore, L. garvieae’s hydrophobic cell surface exhibited an adhesive, hydrophobic, and protein surface cell content with a compact growth pattern consistent with postive SAT and MATH assay. Antimicrobial activity tests, encompassing 11 antibiotics, disclosed resistance to  Nalidixic acid while displaying intermediate sensitivity to Streptomycin and Trimethoprim. In conclusion, L. garvieae demonstrates an inhibitory effect on the growth of pathogenic bacteria, underlining its potential as a probiotic candidate.
CHARACTERIZATION OF SPORE-FORMING BACTERIA ISOLATED FROM TILAPIA (OREOCHROMIS NILOTICUS) AND THEIR POTENTIAL FOR A PROBIOTIC CANDIDATE Mawardi, Mira; Indrawati, Agustin; Lusiastuti, Angela Mariana; Wibawan, I Wayan Teguh
Indonesian Aquaculture Journal Vol 18, No 2 (2023): (December, 2023)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.18.2.2023.105-114

Abstract

Gram-positive spore bacteria are widely used as probiotics in general sectors. However, there are still limited bacterial isolates as probiotic candidates available from indigenous isolates, especially in aquaculture. This study aimed to obtain potential spore-forming isolates as probiotic candidate for tilapia. Tilapia fish samples were collected from Sukabumi, Ciamis, Serang, and Papua. Bacterial isolates were isolated from the digestive tract of tilapia. Bacteria were identified based on their morphological, molecular characteristics, complete genome composition, and cell surface identification based on hydrophobic properties. In this study, six bacteria were isolated and identified by molecular characteristics using 16S rRNA sequences. Based on the phylogenetic analysis, the 9 PP isolate was Priestia megaterium basonym: Bacillus megaterium, CMS 16N isolate was Brevibacillus halotolerans, PPN 10 isolate was Bacillus sp., 3.1 SKBM isolate was Bacillus mycoides, CMS 22 N and SRG32 isolate were Bacillus subtilis. Six bacteria had different phenotypicals, ATGC sequence compositions, and a higher proportion of total G~C sequence composition above 50%. The coherent cell surface hydrophobicity test was positive on the SAT, SA, AA, and compact growth patterns in soft-agar media for 9 PP, CMS 22 N, and SRG32 isolates. From our study, the indigenous spore-forming bacteria isolated from tilapia stomachs are enzymatic bacteria, which have a strong attachment to host tissue and high potential as a probiotic candidate for fish. Various hydrophobicity test results from each isolate indicate that the protein composition in the cell surface is different.
Co-Authors . Darniati Aditya Primawidyawan Afifah Nurhasanah Afiff , Usamah agrita, tri wera Agus Sjahrurachman Ambar Retnowati Ambar Retnowati Angela Mariana Lusiastuti ANGELA MARIANA LUSIASTUTI ANGELA MARIANA LUSIASTUTI Apris Beniawan Ardiana Ardiana Arum, Diah Sekar Bayu Febram Prasetyo Betty Ernawati Damiana Rita Ekastuti Darniati D, Darniati Denny Widaya Lukman Destri Prameswari, Alvira Diah Sekar Arum Dwi Endrawati Edi Purwanto Elmanaviean Eni Kusumaningtyas Erdina Pangestika Erin Kurnianingtyas Fachriyan H Pasaribu Fachriyan Hasmi Pasaribu Fachriyan Hasmi Pasaribu Fachriyan Hasmi Pasaribu Fachriyan Hasmi Pasaribu Fachriyan Hasmi Pasaribu Fadlilah, Ulfi Nurul Fera Ibrabim Guntari Titik Mulyani Hadri Latif Hamdika Yenri Handayani Halik Handina Rakhmawati HELGA SEEGER Hendarko, Sriani Hermana, Nabila Swarna Puspa Herwin Pisestiyani I Wayan T. Wibawan I wayan Teguh Wibawan Idwan Sudirman Ita Krissanti Jefri Naldi Jeni Maharani Julia Rosmaya Riasari Kuntum Khoirani Kurnia Tiara Aulia Lee Xia Meen Leila Nur Aziah Leila Nur Azizah Lila Gardenia Maharani, Jeni Mangaraja Pidoli Tampubolon Mardiastuti Mardiastuti MICHAEL ZSCHÖCK Mira Mawardi Mirnawati Bachrun Sudarwanto Mirnawati Sudarwanto Muh Ramadhan Nabila Swarna Puspa Hermana Nabila Swarna Puspa Hermana Nafiqoh, Nunak Naldi, Jefri Nauval Firdana, Chorrysa Navasuriya Radha Krisnan Nazmi Zahir B. Mohd Zaini Ni Luh Putu Ika Mayasari Ni Luh Putu Ika Mayasari Nining Arini Novita, Hessy Nurhasanah, Afifah Nurul Fadillah Nurul fadillah, Nurul Oktaviani, Dian Okti Nadia Poetri Penataseputro, Tanjung Pratitis S Wibowo Pratitis S Wibowo Rahmat Hidayat Rahmat Hidayat Ramadhaniah, Vetty Reinilda Alwina Retno D. Soejoedono Retno Damajanti Retno Damayanti Soejoedono Rifky Danial Rifky Rizkiantino Risqika Aqla Velayati Romsyah Maryam Rukmi, M.G. Isworo Ryan Septa Kurnia Safika S, Safika Sapto Andriyono Sartika Juwita Seruni Agistiana Setiadi Setiadi Siti Fatimah Siti Gusti Ningrum, Siti Gusti Siti Nur Jannah Sucitya Purnama Suhartila Suhartila Suherman . Surachmi Setiyaningsih Susan M Noor Susan M Noor Susanti, Wiwik Susanto Nugroho Syahidah, Dewi Teguh Budipitojo Titiek Sunartatie Titis Wulandari Tri Wiyoko Trioso Purnawarman Triwardhani Cahyaningsih Ulfi Nurul Fadlilah Uni Purwaningsih Uni Purwaningsih Upik Kesumawati Hadi Usama Affif Usamah Afif Uus Saepuloh Velayati, Risqika Aqla Wattiheluw, Muhammad Subhan Yan Evan Yenri, Hamdika Yuda Heru Fibrianto