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All Journal HAYATI Journal of Biosciences Natural Science: Journal of Science and Technology Biospecies Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Pendidikan Matematika dan IPA AL KAUNIYAH Biogenesis: Jurnal Ilmiah Biologi Jurnal Biologi Universitas Andalas Indonesian Journal of Biotechnology JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis JURNAL KESEHATAN PERINTIS Majalah Kedokteran Andalas Menara Ilmu International Journal of Agricultural Sciences Jurnal Pembelajaran dan Biologi Nukleus Sainstek : Jurnal Sains dan Teknologi Best Journal (Biology Education, Sains and Technology) Jurnal Ners Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Makara Journal of Science Treubia Biodiversitas Journal of Biological Diversity
Djong Hon Tjong
Universitas Andalas
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Keterbatasan Data Molekuler Pada Burung Kakatua Raja ((Probosciger aterrimus Gmelin, 1788): Dampak pada Konservasi Shovinda Rahmadina; Djong Hon Tjong; Anik Budhi Dharmayanthi
BEST Journal (Biology Education, Sains and Technology) Vol 8, No 1 (2025): Juni 2025
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v8i1.10974

Abstract

Probosciger aterrimus atau kakatua raja merupakan spesies burung kakatua yang menghadapi ancaman konservasi akibat deforestasi, perdagangan ilegal, dan tingkat reproduksi yang rendah. Kajian ini bertujuan untuk menelaah literatur terkait genetika molekuler guna memahami struktur populasi serta implikasi konservasinya. Studi terdahulu menunjukkan adanya perbedaan genetik yang signifikan antarpopulasi, yang dapat berdampak pada strategi konservasi, terutama dalam translokasi dan program pemuliaan berbasis konservasi. Namun, keterbatasan data molekuler masih menjadi tantangan dalam pengelolaan spesies ini. Selain itu, kurangnya pemetaan genetik dapat meningkatkan risiko hilangnya adaptasi lokal atau outbreeding depression akibat pencampuran populasi yang tidak sesuai. Oleh karena itu, penelitian lebih lanjut menggunakan teknologi genomik seperti Next-Generation Sequencing (NGS) dan Single Nucleotide Polymorphisms (SNPs) diperlukan untuk memastikan strategi konservasi yang lebih efektif. Kajian ini menekankan pentingnya pendekatan berbasis genetika dalam perlindungan jangka panjang P. aterrimus serta perancangan kebijakan konservasi yang lebih akurat
Isolation and Antibacterial Activity of Mangrove-Derived Streptomyces from the Mandeh Coast, West Sumatra Fatriza, Ayu Septia; Tjong, Djong Hon; Suliansyah, Irfan; Agustien, Anthoni; Marlina, Marlina; Rusfidra, Rusfidra
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.12208

Abstract

Mangrove ecosystems are recognized as potential environments for microorganisms that produce antibiotics, owing to their distinct environmental features and high levels of microbial rivalry. The objective of this research was to extract and assess the antibacterial properties of Streptomyces species sourced from the mangroves within the Mandeh coastal ecosystem in West Sumatra, Indonesia, targeting specific pathogenic bacteria. Sediment samples were collected from three mangrove locations and processed using serial dilution and spread plate methods on International Streptomyces Project 2 (ISP-2) media. Data were analyzed descriptively based on the size of the inhibition zone formed against the tested bacteria. The results showed Streptomyces-like characteristics characterized by colony morphology and Gram staining. Antibacterial activity was evaluated using a disc diffusion test against methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli ATCC 25922, and Cutibacterium acnes. A total of seventeen isolates exhibiting typical Streptomyces characteristics were obtained. The antibacterial test showed varying inhibitory activity among the isolates against the tested pathogens. The STMMI isolate showed the strongest inhibition against MRSA with an inhibition zone of 23.61 ± 0.62 mm and also showed considerable activity against C. acnes (16.64 ± 1.12 mm). Meanwhile, the STMML isolate showed the highest inhibition against E. coli ATCC 25922 with an inhibition zone of 17.06 ± 0.63 mm. Some isolates showed broad-spectrum antibacterial activity, while others showed selective inhibition against certain pathogens. In conclusion, mangrove sediments from the Mandeh coastal ecosystem harbor a variety of Streptomyces with promising antibacterial potential. This study highlights the importance of Indonesian mangrove ecosystems as a potential reservoir of bioactive microorganisms for future antibiotic discovery.
Co-Authors - Jumawita - Syaifullah Aadrean Aadrean Aadrean ADA CHORNELIA Aidil, Dyta Rabbani Aldino Fauzil Fanani Almurdi Almurdi Amanda Nurhafitri Amir Hamidy Amir Hamidy AMIR HAMIDY ANDRI SAPUTRA Anggraini, Debie Anik Budhi Dharmayanthi Annisa Farma Annisa Khaira Annisya Fitri Anthoni Agustien Anthonie Agustien Anugrah Viona Agesi ANUGRAH VIONA AGESI Arum Setiawan Ashrifurrahman Ashrifurrahman Asnul Fitria Asrori, Ikrima Aurora, Dhea Apriano Cynthia Ericca Dahelmi Dahelmi Dahelmi David Gusman Dewi Imelda Roesma Dewi Roesma Dharmayanthi, Anik Budhi Dian Juliadmi Djoko T. Iskandar Djoko T. Iskandar, Djoko T. Dwitya Elvira Dyta Aidil DYTA RABBANI AIDIL DYTA RABBANI AIDIL DYTA RABBANI AIDIL DYTA RABBANI AIDIL Dyta Rabbani Aidil DYTA RABBANI AIDIL DYTA RABBANI AIDIL Elli Firdamila Endang Purwati RN Essy Harnelly fachrul reza, fachrul Fanny Adhy Putri Fanny Lestari Fatriza, Ayu Septia Fauzan . Feskaharny Alamsjah Firdamila, Elli FURQAN DWIKI LINTANG PRAWIRA FURQAN DWIKI LINTANG PRAWIRA G Gunawarman, G Gusman, David Hadi Addaha, Hadi Hadi Kurniawan Henny Herwina Hirowati Ali Hirowati Ali, Hirowati Huda, Nadyatul Khaira Ida Ayu Putu Sri Widnyani IKRIMA ASRORI IKRIMA ASRORI Ilhamdi, Ilhamdi Indra Junaidi Zakaria INDRI LESTARI Irawati Chaniago Irfan Suliansyah Irvan Fadli Wanda Jamsari Jamsari Janra, Muhammad Nazri Jon Affi, Jon Juliadmi, Dian Kevin Origia Kevin Origia Kharisma Putra Liza Aulia Yusfi M. Idris Mahmudul Hasan Mahmudul Hasan Mahmudul Hasan, Mahmudul Mansyurdin Marlina Marlina Masayuki Sumida Masayuki Sumida Masayuki Sumida, Masayuki Maulana, Imron Melinda, Annisa Menkher Manjas Meri Wulandari Muhamad Irsyad Muhammad Janra Muhammad Idris Muhammad Silmi Nadyatul Khaira Huda Nelmi Fitria Netty Marusin Netty Marusin Nia Kurniawan Nia Kurniawan Nia Kurniawan Nofrita Nofrita Nofrita Nofrita Nurhafitri, Amanda Nurul Aida Nurvalinda Nurvalinda Nuswantoro, Nuzul Ficky Nuzulia Irawati Oktaviana, Dili Padilla, Putri Rahma PATRICK FLAGGELLATA Prawira, Furqan Dwiki Lintang Putri, Emilya Rahmadina, Shovinda Ravelino Nesty Resti Rahayu Revis Asra Ridho Hendrikos Rifka Rahmat Riska Mayori Rita Permatasari Rivi Hamdani Rizaldi Rizaldi Rizia Irsa RUSDIYAN RITONGA Salis, Viola Mutiara Saputri, Rahmi Agu SARUEDI SIMAMORA Shovinda Rahmadina Silvia Indra Sisca Dwi Yarni Sri Wahyuni Handayani Sri Wahyuni Handayani, Sri Wahyuni Suwirmen, Suwirmen Syaifullah Syaifullah Syaifullah Syaifullah Syaifullah SYAIFULLAH SYAIFULLAH SYAIFULLAH SYAIFULLAH SYAIFULLAH SYAIFULLAH Syaifullah Syaifullah SYAIFULLAH SYAIFULLAH SYAIFULLAH SYAIFULLAH Syamsuardi Syamsuardi Syandri, Hafrijal Takeshi Igawa Takeshi Igawa Takeshi Igawa, Takeshi Tesri Maideliza Tesri Maideliza Tofrizal UMMI KURNIA PUTRI VIOLA MUTIARA SALIS VIOLA MUTIARA SALIS WARNETY MUNIR WILA KARLINA Wilson Novarino Yarni, Sisca Dwi Yelvita Sari Yeni Gusma Yanti YOLI ZULFANEDI Yuliarni Syafrita Yurike Nova Edlin Zil Fadhillah Rahma Zozy Aneloi Noli Zulkarnain, Alivia