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Roni Koneri
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Jurusan Biologi FMIPA Universitas Sam Ratulangi
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Jurnal Bios Logos
Published by Universitas Sam Ratulangi
ISSN : 20889569     EISSN : 26563282     DOI : https://doi.org/10.35799/jbl.11.2.2020.28153
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology
JURNAL BIOS LOGOS is the journal published by Department of Biology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University. The aims of the journal are to publish original research papers and article review in biology science i.e. botany, zoology, molecular biology, microbiology, ecology, diversity and conservation, taxonomy and biogeography. BIOS LOGOS is published two times per year (February and August)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 15 Documents
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Search results for , issue "Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS" : 15 Documents clear
Identifikasi dan Potensi Probiotik Bakteri Asam Laktat pada Pangan Fermentasi Lokal Zaenab Fauziyah; Lista Nia; Febbi Julia Nandi; Rahmad Lingga; Henny Helmi
JURNAL BIOS LOGOS Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i2.47900

Abstract

Lactic Acid Bacteria (LAB) are bacteria involved in food fermentation processes and can be used as probiotics. This study aims to isolate, identify and determine the probiotic potential of Lactic Acid Bacteria (LAB) at the end of the fermentation of local food on the island of Bangka and South Sumatra (aruk rice, anchovy sauce and tempoyak). Isolation and identification of lactic acid bacteria were carried out macroscopically, microscopically, biochemically and molecularly assays based on 16S rRNA. The probiotic potency of the isolates was tested based on their resistance to acid and antibacterial activity. LAB that plays a role in the process of making aruk rice is Lactobacillus plantarum with rod-shaped characteristics, gram positive, does not have the catalase enzyme, is able to ferment glucose into acid, is able to ferment lactose and sucrose, does not move, is resistant to acids and has antibacterial activity against Staphylococcus aureus.
Karakteristik Morfometrik Hampala macrolepidota Kuhl & Van Hasselt, 1823 di Indonesia Feby Dwi Restuningsih; Roza Elvyra; Haryono Haryono
JURNAL BIOS LOGOS Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i2.48688

Abstract

Hampala macrolepidota is a native fish in Indonesia that has potential as an ornamental fish and a consumption fish. The research aims were to determine the geographical classifying of fish and to analyze morphometric characteristics of H.macrolepidota morphology. The research was conducted at Fish Biosystematics Laboratory, Biosystematics and Evolution Research Center-BRIN Cibinong. Sample measured were 371 wet-preserved specimens of H. macrolepidota from various water lotic and lentic habitats in Indonesia using standard morphometric and truss morphometric methods. The collected data was analyzed using significance test with Wilk’s Lambda. Research result showed there is a tendency standard morphometrics is more accurate than truss morphometrics for classified H.macrolepidota according to their distribution area in Indonesia. This shows that H. macrolepidota on the islands of Sumatera, Jawa, and Kalimantan have a high similarity is due to the fact that the three islands are part of the Sunda Shelf.
Isolation and Identification of Thermophilic Bacteria from Lahendong Hot Spring, North Sulawesi Christiana Abrita Nathania Corneles; Feky Mantiri; Marina Singkoh
JURNAL BIOS LOGOS Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i2.50184

Abstract

Thermophilic bacteria are a group of procaryotic organisms that can grow in high temperature around 450C until 900C. Thermophilic bacteria are able to produce lipase thermostable enzyme. Lipase thermostable enzymes produced from thermophilic bacteria are able to catalyze the hydrolysis of triglycerides into glycerol and free fatty acids and the synthesis of esters in organic solvents. Lipase thermostable enzymes are potential to be used in industrial production. Lipase enzymes have been used for the production of laundry detergents as additives or to replace chemical detergents because of their environmental friendliness. This research was aimed to isolates and identified themophilic bacteria from Lahendong hot springs, North Sulawesi and to conduct the morphological characterization, biochemical test, and molecular identification with 16S rRNA. Results showed that isolates obtained from the- Lahendong hot spring have high similarities with Geobacillus kaustophilus, Bacillus cereus, and Geobacillus lituanicus. The three isolates are able to produce lipase thermostbale enzyme.
Diversity and Abundance of Entomopathogenic Fungi and Their Hosts in Rice Fields of Kembang Mertha Village-Bolaang Mongondow Rowland Mangais; Laurentius Rumokoy; Parluhutan Siahaan
JURNAL BIOS LOGOS Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i2.48123

Abstract

The diversity of entomopathogenic fungi in an area can provide information about the potential for controlling insect pests. This is important to do to find suitable biological control agents to reduce the impact of using synthetic pesticides. This research was conducted to look at the diversity and abundance of entomopathogenic fungi and their host insects, so that potential entomopathogenic fungal and pest species were identified in the rice fields of Kembang Mertha Village. The results obtained were four species of host insects, namely Leptocoarisa oratorius, Schotinopara coarctata, Ricelia dorsalis and Nilaparvata lugens, and three species of entomopathogenic fungi, namely Beauveria bassiana, Metarhizium sp. and Hirsutella sp.. The host insect diversity indices in the medium category were S. coarctata (1.10) and N. lugens (1.04) and for entomopathogenic fungi, the three fungal species found were in the medium category respectively B. bassiana (1.31), Metarhizium sp. (1.07) and Hirsutella sp. (1.05). The highest abundance index values ​​for host insects were S. coarctata (84.62%) and N. lugens (50%), while for pathogenic fungi were Hirsutella sp. (43.73%).
Deteksi Unit-unit CRISPR (Clustered Regularly Interspaced Short Palindromic Repeat) pada Genom Beberapa Mikroba yang Berasosiasi dengan Ascidia Laut Trezya Pangemanan; Inneke Rumengan; Kurniati Kemer; Antonius Rumengan; Elvy Ginting; Rosita Lintang; Joudy Sangari
JURNAL BIOS LOGOS Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i2.48847

Abstract

Sekuens CRISPR merupakan suatu rangkaian nukleotida pada genom banyak mikroba yang terdiri dari urutan-urutan nukleotida palindromik berulang yang mengapit sekuens spesifik yang berasal dari asam nukleat asing. Studi ini bertujuan untuk memperoleh data sekuens genom beberapa mikroba dari komunitas mikrobioma ascidia yang tersedia di NCBI GenBank®, serta mendeteksi keberadaan unit-unit CRISPR pada genom mikroba tersebut dengan analisis in silico menggunakan CRISPRCasFinder. Data sekuens genom utuh berhasil diperoleh untuk Synechococcus sp. PCC 7002 (3.008,047 MB), Leptolyngbya sp. PCC 7376 (5.125,950 MB), Candidatus endolissoclinum faulkneri L2 (1.481,191 MB), dan Prochlorococcus marinus (1.751,080 MB), juga urutan genom shotgun untuk ketiga strain Prochloron didemni (P2-Fiji, P3-Solomon dan P4-Papua New Guinea) masing-masing dengan ukuran 84,370; 40,852; dan 64,281 MB. Sekuens CRISPR terdeteksi pada tiga dari tujuh genom mikroba dengan kisaran 2-20 unit CRPSR. Tipe sistem CRISPR-Cas perlu ditelusuri lebih lanjut ke depan.

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