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Brigitta Laksmi Paramita
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Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Published by Universitas Atma Jaya Yogyakarta
ISSN : 25273221     EISSN : 2527323X     DOI : doi.org/10.24002/biota
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati merupakan jurnal ilmiah yang memuat hasil-hasil penelitian, kajian-kajian pustaka dan berita-berita terbaru tentang ilmu dan teknologi kehayatian (biologi, bioteknologi dan bidang ilmu yang terkait). Biota terbit pertama kali bulan Juli 1995 dengan ISSN 0853-8670. Biota terbit tiga nomor dalam satu tahun (Februari, Juni, dan Oktober).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 1,224 Documents
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Peningkatan Hasil Padi Melalui Penerapan Pengelolaan Hara Spesifik Lokasi di Lahan Sawah Tadah Hujan Ika Ferry Yunianti; Nourma Al Viandari; Jumari; Edi Supraptomo; Mas Teddy Sutriadi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 7, No 1 (2022): February 2022
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v7i1.5425

Abstract

Pertumbuhan dan hasil padi dipengaruhi oleh beberapa faktor, salah satunya ketersediaan hara yang cukup. Penyediaan hara dapat dilakukan melalui pemupukan berdasarkan spesifikasi lokasi dan kebutuhan tanaman. Kegiatan ini bertujuan untuk mengkaji pengelolaan hara spesifik lokasi (PHSL) terhadap pertumbuhan dan hasil padi di lahan sawah tadah hujan. Kegiatan pengkajian dilaksanakan pada Maret-Juni 2021 di Kecamatan Pucakwangi, Kabupaten Pati, Indonesia. Kajian meliputi penerapan teknologi PHSL, dan pengelolan hara sesuai kebiasaan petani (eksisting petani) sebagai variabel kontrol. Penerapan PHSL dan eksisting petani dilakukan pada lahan seluas 0,5 ha dan masing-masing diulang sebanyak dua kali dengan melibatkan dua orang petani. Pengelolaan hara spesifik lokasi dilakukan berdasarkan hasil uji menggunakan Perangkat Uji Tanah Sawah (PUTS). PHSL menggunakan pupuk dengan dosis 250 kg/ha Urea, 100 kg/ha SP-36 dan 100 kg/ha KCl dengan penambahan 2 ton/ha kompos, sedangkan eksistening petani menggunakan dosis pupuk 200 kg/ha Urea, 300 kg/ha Phonska, dan 25 kg/ha KCl. Pengelolaan hara spesifik lokasi dapat mengoptimalkan pertumbuhan dan meningkatkan hasil padi sebesar 6,18% dibanding perlakuan eksisting petani pada lahan sawah tadah hujan.
Isolasi dan Identifikasi Khamir Toleran Alkohol dari Molase Nurhayati; Jay Jayus; Anjas Wida Elistia Rini; Bambang Sugiharto; Dedy Eko Rahmanto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 7, No 1 (2022): February 2022
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v7i1.5426

Abstract

Khamir mampu menghasilkan bioetanol dari molases. Selama proses produksi (proses fermentasi) terjadi proses akumulasi alkohol sehingga konsentrasi alkohol semakin meningkat. Konsentrasi etanol yang melebihi 8% (v/v) dapat menyebabkan ketidakstabilan membran yang kemudian dapat menurunkan permeabilitas membran dan homeostasis sel. Penelitian ini dilakukan isolasi dan identifikasi khamir indigenus dari molase yang toleran terhadap alkohol. Karakterisasi morfologi meliputi bentuk koloni, bentuk sel dan tipe pertunasa, sedangkan karaktersasi fisiologis dilakukan dengan kit API 20C. Identifikasi molekuler dilakukan dengan PCR dan sequencing DNA menggunakan primer ITS1-ITS4. Hasil penelitian didapatkan dua isolat khamir yaitu isolat X dan Z yang memiliki potensi toleran terhadap alkohol. Berdasarkan hasil karakteristik fisiologis, isolat X dan isolate Z memiliki kedekatan dengan Candida tropicalis. Hasil sequencing DNA dengan primer ITS1-ITS4 dan analisis dengan program blastn menunjukkan bahwa isolat X teridentifikasi sebagai spesies Candida parapsilosis strain AUMC 10714 dan isolat Z teridentifikasi sebagai spesies Candida parapsilosis ZA012.
Isolasi dan Karakterisasi Parsial Bakteri Rizosfer Padi yang Berpotensi sebagai Pelarut Kalium Widya Andini; Tetty Marta Linda
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.10385

Abstract

Bakteri rizosfer merupakan bakteri yang hidup di sekitar daerah perakaran tanaman dan berperan penting dalam meningkatkan ketersediaan unsur hara. Salah satu unsur hara penting yang dibutuhkan tanaman adalah kalium, yang terlibat dalam berbagai proses fisiologis tanaman. Namun, sebagian besar kalium dalam bentuk senyawa mineral tidak larut sehingga ketersediaannya di dalam tanah terbatas. Bakteri pelarut kalium dapat meningkatkan jumlah kalium yang tersedia dalam tanah, melalui mekanisme konversi kalsium menjadi bentuk terlarut. Penelitian ini bertujuan untuk mengisolasi dan mengkarakterisasi bakteri pelarut kalium dari rizosfer tanaman padi di Desa Pembatang, Kecamatan Pangean, Kabupaten Kuantan Singingi, Riau. Isolasi bakteri dilakukan menggunakan medium Alexandrov dengan sumber K feldspar (KAISi3O8), pH medium 7 dengan waktu inkubasi pada suhu ruang selama 7 hari. Karakterisasi terhadap isolat bakteri pelarut kalium meliputi makroskopis, mikroskopis dan uji katalase. Hasil penelitian diperoleh empat isolat bakteri pelarut kalium yaitu isolat BPK 1.1, BPK 2.2, BPK 3.1 dan BPK 3.2. Indeks kelarutan kalium tertinggi yaitu isolat BPK 3.2 (2,48). Hasil aktivitas kelarutan kalium isolat BPK 3.2 memiliki indeks kelarutan kalium tertinggi sebesar 2,48. Hasil pewarnaan Gram isolat BPK 3.2 adalah Gram positif, tiga isolat yaitu BPK 1.1, BPK, BPK 2.2 dan BPK 3.1 adalah Gram negatif. Empat isolat bakteri menunjukkan uji katalase positif.
Characteristics and Abundance of Microplastics at Gastropods in Pasir Putih Beach, Banten Ayuningtyas Sekar Arum; Ferry Dwi Cahyadi; Kukuh Widiyanto; Laksmi Puspitasari
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.13088

Abstract

Poor waste management and the use of single-use plastics have led to microplastic contamination in the environment, particularly in water bodies that serve as final dumping grounds for plastic waste. There is a high likelihood that microplastics are mistaken as food by marine organisms, including gastropods that feed through deposit feeding. This study was conducted in January to June 2025 at the Pasir Putih Beach with the aim of identifying the families of gastropods present in the estuary, as well as the abundance and characteristics of microplastics found throughout the gastropod organs. The research method employed purposive sampling, and data analysis was conducted descriptively. The dominant microplastics in the Pasir Putih Beach Estuary are fiber-type microplastics, with black being the predominant color, resulting from degradation due to UV radiation and physical ocean conditions. Microplastics with a size of <1 mm were most commonly found in the Pasir Putih Beach Estuary. Station 6 exhibited the highest microplastic abundance, totaling 2,120 particles/gram.
DNA Metabarcoding Reveals Marine Microbiota Composition as Indicators of Anthropogenic Impact in Karimunjawa National Park Al Mira; Aji Wahyu Anggoro; Rian Prasetia; Nenik Kholilah; Nining Nursalim; Muhammad Danie Al Malik; Widyastuti Widyastuti; Dyah Sulistyari; Rully Rahardian; Sapto Purnomo Putro; Ni Kadek Dita Cahyani
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.13185

Abstract

The Karimunjawa Islands in Central Java, Indonesia, are a designated marine national park experiencing increasing anthropogenic pressures. To address these concerns, this study investigates the diversity of marine microbiota in the coastal waters of the Karimunjawa Islands, utilizing DNA metabarcoding techniques to assess their potential as indicators of environmental change. Environmental DNA (eDNA) samples were collected from both high and low human-impacted site. Samples were analysed using Next Generation Sequencing (NGS) technology targeting the 16S gene. Analysis of these samples revealed a high diversity of marine microbiota, comprising 11 phyla, 11 classes, 11 orders, and 12 families. In locations subjected to anthropogenic pressures, the microbial community was dominated by potentially pathogenic taxa, particularly those from the families Arcobacteraceae and Nitrincolaceae, which are commonly associated with degraded water quality and adverse conditions for aquatic life. Conversely, low human-impacted sites exhibited a predominance of Cyanobiaceae, a group known for its ecological roles that support a healthy aquatic environment. The study's findings underscore the importance of marine microbiota as a valuable bioindicator for monitoring environmental health in coastal areas. These results highlight the need for ongoing monitoring and conservation efforts to preserve the delicate balance of the marine ecosystems in the Karimunjawa Islands.
mRNA Vaccine Design Modifications and Their Implications for Next-Generation Vaccines: Lessons from COVID-19 Dwi Purbasari; Jekmal Malau; Mahhal Maulidhan; Siti Sofia
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.13298

Abstract

The COVID-19 pandemic accelerated rapid advances in vaccine development and underscored the need for platforms that can be rapidly engineered, highly effective, and adaptable to evolving pathogens. Messenger RNA (mRNA) vaccines have demonstrated exceptional efficacy and safety, establishing a significant milestone in modern vaccinology. This review aims to synthesize recent molecular engineering innovations that determine mRNA vaccine performance, focusing on nucleoside modification, spike protein prefusion stabilization, codon and untranslated region (UTR) optimization, and lipid nanoparticle (LNP) delivery systems. A literature search was conducted using PubMed and Google Scholar for studies published between 2020 and 2023, and selected publications were analyzed to identify key molecular determinants shaping vaccine function. Findings indicate that incorporation of N1-methyl-pseudouridine enhances mRNA stability, improves translational output, and reduces innate immune activation. The double-proline modification maintains the spike protein’s prefusion conformation, while codon and UTR optimization further elevate antigen expression. LNP encapsulation provides structural protection and supports efficient intracellular delivery. Collectively, these engineering strategies enhance immunogenicity, ensure favorable tolerability, and allow rapid adaptation to emerging variants. Overall, integrated molecular design and advanced delivery technologies position mRNA vaccines as a transformative platform for next-generation vaccine development and strengthened global pandemic preparedness.
Students’ Perception on Avitourism Potential in Vegetated Area of Universitas Andalas Ibrahim Fauzi; Rihadatul Aisyah; Negi Alfajri; Muhammad Nazri Janra
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.13690

Abstract

This study evaluated the potential of avitourism in the vegetated areas of Universitas Andalas, West Sumatra, through a two-day birdwatching simulation and campus community perception survey. The simulation was conducted on 7–8 December 2024 at three sites (Medicinal Garden, Biodiversity Park, and Biology Education and Research Forest) using casual birdwatching techniques combined with digiscoping to document sighted birds. In total, 26 species representing 25 genera, 19 families, and 7 orders were documented. These included five Near Threatened species, one species listed in CITES Appendix II, four nationally protected species, one Indonesian endemic Prinia familiaris, and two migrants. Passeriformes dominated the records, highlighting their ecological diversity and attractiveness for tourism. An online survey on 44 student respondents showed that 91% of them had at least basic understanding on ecotourism, 95% supported the inclusion of birds as ecotourism attractions, and 50% expressed willingness to pay for avitourism services. Bird aesthetics assessment identified Hemiprocne longipennis (84% score 5) and Eurylaimus ochromalus (80% score 5) as the most attractive species for birdwatching, where the most influencing factors for bird aesthetic were feather coloration, vocalization, behavior, and morphology. These results demonstrate that the vegetated area in Universitas Andalas has potential for avitourism initiatives. Campus-based avitourism can be integrated with biodiversity conservation, empowering environmental education, and generating sustainable tourism opportunities, while engaging communities in conservation-oriented activities that benefit both people and nature.
Inovasi Scaffold Hidrogel Berbasis Selulosa Eichhornia sp. dengan Biomassa Chlorella vulgaris untuk Terapi Ulkus Diabetikum Pamastadewi Pryankha Hijrianto; Keanu Saputra Valenka Darmawan; Gresmawarrenes Jamuss; Kamilah Kusuma Maharani; Lidya Oktaviani; Tyas Ikhsan Hikmawan
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.13706

Abstract

Ulkus diabetikum dapat menyebabkan amputasi dan kematian akibat lambatnya proses penutupan luka. Kondisi ini diperparah oleh penggunaan perban konvensional yang berpotensi menimbulkan akumulasi eksudat dan meningkatkan risiko infeksi. Sebagai alternatif, scaffold hidrogel dapat digunakan untuk menjaga kelembapan luka sekaligus membantu mencegah infeksi. Penelitian ini bertujuan mengevaluasi karakteristik scaffold hidrogel berbasis selulosa eceng gondok (Eichhornia sp.) pada konsentrasi biomassa Chlorella vulgaris 0,05%, 0,3%, dan 0,8%, serta dampaknya terhadap penyembuhan luka. Metode mencakup preparasi biomassa Chlorella vulgaris, purifikasi selulosa, formulasi scaffold hidrogel, uji karakteristik, serta uji penyembuhan dan histologi. Analisis statistik dengan one-way ANOVA serta uji lanjut Tukey. Hasil menunjukkan scaffold hidrogel alga (SHA) 0,8% memiliki ikatan hidrogen kuat, makropori dengan persebaran sel Chlorella vulgaris, daya serap tertinggi, kekuatan mekanik baik, diameter daya hambat 0,72 cm, penurunan bobot 90% dalam 8 hari, serta luka yang sembuh dalam 14 hari dan mencapai tahap remodeling. Dapat disimpulkan bahwa SHA 0,8% memiliki karakteristik terbaik secara keseluruhan dan penyembuhan luka mencapai tahap remodeling dalam waktu 14 hari.
Isolasi Bakteri Rizosfer Kawasan Gunung Ijen sebagai Biokontrol Bakteri Xanthomonas oryzae secara In Vitro Erwin Angriawan; Oktarina Oktarina; Hidayah Murtiyaningsih
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.13816

Abstract

Padi (Oryza sativa L.) merupakan komoditas pangan strategis yang produktivitasnya dapat menurun akibat serangan penyakit hawar daun bakteri yang disebabkan oleh Xanthomonas oryzae pv. oryzae (Xoo). Pemanfaatan bakteri rizosfer sebagai agens biokontrol menjadi alternatif pengendalian yang ramah lingkungan. Penelitian ini bertujuan mengisolasi, mengkarakterisasi, dan mengevaluasi potensi bakteri rizosfer asal kawasan Gunung Ijen sebagai agen biokontrol terhadap Xoo. Isolasi dilakukan menggunakan metode pengenceran bertingkat (serial dilution) dan spread plate, sedangkan karakterisasi meliputi morfologi koloni, pewarnaan Gram, serta uji fisiologi dan biokimia. Laju pertumbuhan diamati menggunakan kurva OD600, sedangkan aktivitas antagonistik diuji dengan metode difusi cakram Kirby–Bauer. Data dianalisis menggunakan ANOVA dan uji lanjut Dunnett pada taraf 5%. Hasil penelitian memperoleh lima isolat yang diduga termasuk genus Micrococcus, Bacillus, dan Streptococcus. Isolat AP002 dan AP003 menunjukkan aktivitas antagonistik tertinggi terhadap Xoo dengan zona hambat masing-masing sebesar 37,57 mm dan 33,10 mm, serta mencapai kepadatan sel maksimum pada inkubasi 30–40 jam. Hasil ini menunjukkan bahwa bakteri rizosfer kawasan Gunung Ijen berpotensi dikembangkan sebagai sumber agens biokontrol dalam pengendalian penyakit hawar daun bakteri pada tanaman padi.
Banyan (Ficus) Presence and Spring Quantity–Quality Associations in Gendol Hill, Bulukerto, Wonogiri Arum Sekar Kedhaton; Andika Krismondo; Riga Aditya Ariyanto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 2 (2026): June 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i2.14019

Abstract

Springs are primary water sources for rural communities and are sensitive to land-cover changes in recharge areas; therefore, assessing spring quantity and quality is essential for local water security. This study examines the association between banyan (Ficus) presence and spring quantity and water quality in Gendol Hill, Geneng Village, Wonogiri. A quantitative descriptive design was applied during the dry season, including an inventory of all springs and spatial documentation of nearby Ficus. Spring quantity was measured as flow/discharge, while water quality was evaluated using physico-chemical parameters (temperature, dissolved oxygen/DO, electrical conductivity/EC, salinity) and microbiological testing for Escherichia coli. All springs were perennial and showed variability in spring quantity (Meinzer classes V–VII). Ficus occurred at most spring outlets, paired comparisons of selected nearby springs indicated higher spring quantity at sites with Ficus than at sites without Ficus, although the pattern was not uniform across locations. E. coli was detected in three springs, while seven were negative. DO ranged from 1.93 to 4.99 ppm and temperature from 20.70 to 27.52°C, suggesting heterogeneous outlet conditions. These findings support spring protection zoning and sanitation management, alongside conserving woody vegetation as a supporting element for spring-ecosystem stability.

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