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Kota mataram,
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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 2,520 Documents
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Strategy for Sustainable Narrow Rice Field Optimization Through Intercropping of Peanuts Shallots Intercropped with Chili Corn in West Lombok District Yusuf, M.; Rahayu, Muji; Mulyati, Mulyati
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10495

Abstract

This aims of study are to: (1) Analyze the impact of the rice-legume-shallot + chili/corn cropping pattern on productivity, farmer income, and sustainability of narrow rice fields in West Lombok Regency; (2) Analyze the optimization of narrow land utilization through a peanut and shallot intercropping system and chili and corn intercropping; and (3) Identify technical and socio-economic constraints in implementing the rice-rice-legume monoculture cropping pattern into a rice-legume-shallot + chili/corn cropping system. The method used in this study is a descriptive method, while data collection was carried out by survey, and analyzed descriptively. The results of the study show that: (1) The rice-legume-shallot + chili/corn cropping pattern in narrow land in West Lombok Regency has a comprehensive positive impact on increasing productivity, cropping index, cost efficiency, and increasing farmer income, as well as supporting land sustainability; (2) Optimizing narrow land through a rotation and intercropping system can increase yields and income sustainably. Integration of crops in one cycle reduces costs, is responsive to climate and markets, and requires technical support, institutions, and access to inputs as prerequisites for the success of a sustainable system; (3) Technical constraints in implementing the rice-legume-shallot + chili/corn cropping system in West Lombok include: agronomic complexity, limited irrigation, pests, technology, and adaptive varieties, as well as socio-economic aspects, including low adoption of innovation, limited capital, high labor, fluctuating prices, minimal market access and institutional support
Impact of Coma Duration on Functional Outcomes After Septic Encephalopathy: A Literature Review Shafitri, Shira Shalsabina; Sugiono, Muhammad Rafly Adrian; Paradiesta, Andi Frieskha Naurah; Aulia, Siti Zahroni; Ilmiah, Janiya Abdila; Hunaifi, Ilsa
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10516

Abstract

Sepsis-associated encephalopathy (SAE) is a neurological complication often found on sepsis patients and is associated with high morbidity and mortality rates. It arises from systemic inflammation, blood-brain barrier disruption, microglial and astrocytic activation, and oxidative stress which collectively contribute to neuronal injury and long-term cognitive impairment. This literature review aims to analyze the impact of coma duration on functional outcomes at discharge and long-term survival among patients with SAE. Literatures were searched through PubMed, ScienceDirect, and Google Scholar with a 10-year publication limit and selected based on topic relevance, study design, and data completeness and were analyzed using a narrative synthesis approach. Findings indicate that prolonged coma duration is strongly associated with poor neurological recovery, increased risk of disability, and early mortality. Conversely, early recovery of consciousness tends to correlate with better short-term functional outcomes. However, among survivors discharged from intensive care, coma duration doesn’t consistently predict long-term survival, although cognitive and quality of life impairments often persist. In conclusion, coma duration serves as an important prognostic factor in SAE, but it should be interpreted alongside other factors such as age, comorbidity, and the severity of sepsis itself. The scientific implications highlight the need for , infection control, and rehabilitative strategies to shorten periods of altered consciousness and improve neurological outcomes in the long term.
Literature Review: Immunopathobiology of AIDS-related Kaposi’s Sarcoma Rahmadani, Nia Ardelia
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10525

Abstract

Kaposi's Sarcoma (KS) is an angioproliferative malignancy closely associated with Acquired Immunodeficiency Syndrome (AIDS), primarily caused by Human Herpesvirus 8 (HHV-8) infection in individuals with immunosuppression due to Human Immunodeficiency Virus (HIV). The reduction of CD4⁺ T cells by HIV causes cellular immunity disorders that allow HHV-8 to survive in both latent and lytic phases and trigger tumor formation through immune system modulation. This review aims to understand the immunopathobiology of AIDS-related KS. This study is a narrative literature review compiled from various scientific articles obtained from PubMed, Google Scholar, and ScienceDirect. Various literature indicates that HHV-8 is able to evade the immune response by suppressing the Toll-like receptor (TLR) pathway, reducing Major Histocompatibility Complex (MHC) expression, and producing cytokine and chemokine homologs that support the tumor microenvironment. Immunosuppression due to HIV further strengthens these mechanisms and plays an important role in the formation of KS lesions. Understanding the immunopathobiology mechanisms of AIDS-related KS provides a scientific basis for the development of more effective prevention, early detection, and immunomodulatory therapy strategies in the future.  
Genetic Diversity and Phylogenetic Relationships of Pometia pinnata Variants from South Sumatra Using RAPD Markers Hanum, Laila; Novira, Sandra; Oktariansyah, Yadi
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10536

Abstract

Matoa (Pometia pinnata J.R. & G. Forst) is a tropical tree of the Sapindaceae family widely distributed in Southeast Asia, yet the genetic diversity and evolutionary relationships among its variants in South Sumatra remain poorly understood. This study aimed to clarify the genetic structure of four local variants forest, red, yellow, and green matoa using Random Amplified Polymorphic DNA (RAPD) markers. Leaf samples representing each variant were collected across different regions of South Sumatra and analyzed through standard molecular procedures, including DNA extraction and RAPD amplification using five primers. Cluster analysis based on Jaccard’s coefficient and UPGMA revealed two major genetic groups, indicating substantial variation among the studied variants. Red and yellow matoa showed the closest genetic affinity, whereas forest matoa was the most distinct from the others. These findings demonstrate considerable intraspecific diversity within matoa populations in South Sumatra. The study provides essential baseline information that strengthens conservation strategies, supports potential breeding programs, and enhances understanding of the species’ evolutionary patterns within tropical ecosystems.
Diatom Similarity in Experimental Drowning of Rattus norvegicus as Forensic Evidence for Determining The Drowning Site Hidayatulloh, Taufik; Nofrita, Nofrita; Nurdin, Jabang
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10565

Abstract

Diatom analysis is one of the most reliable indicators for confirming death due to drowning. Diatoms are microscopic algae that can enter the respiratory tract during water aspiration and provide ecological evidence linking the victim to the drowning site. This study aimed to analyze the presence of diatom species and taxonomic similarity between water samples and the internal organs of experimentally drowned white rats (Rattus norvegicus) to validate their use as a forensic model. Experimental drowning was performed using water of the Batang Arau River, West Sumatra in the February 2024 to January 2025. In this study, we were found 56 species of diatoms in the waters, while 31 were found in white rats' internal organs. The highest diversity found in the esophagus (31 species) and lungs (19 species). No diatoms were detected in the heart, liver, or kidneys. The distribution pattern, limited to the respiratory system, indicated early drowning aspiration with no systemic circulation. The typical species is a diatom species only found in water and in the internal organs of white rats in specific locations. Achnanthes adnata, Cocconeis pellucida, Cocconeis pseudomarginata, Eunotia bilunaris, and Gomphonema pumilum are typical species at Location I. Amphora bigibba and Amphora bioculata are typical species at Location IV. At the same time, Navicula viridula is the typical species at Location VI. These findings validate the white rat as an effective experimental model for drowning research and demonstrate that species-specific diatom fingerprints can aid forensic investigators in determining both the vitality of drowning and the probable crime scene.
Diversity of Stingless Bee Species and Their Pests in the Village of Rarung, Central Lombok Jihadi, Amrul; Supeno, Bambang; Sarjan, Muhammad; Haryanto, Hery; Pranggawan Azhari, Anjar
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10571

Abstract

The bekeeping of stingless bees is gaining popularity and developing in West Nusa Tenggara, as it provides an alternative livelihood and plays a vital role in the ecosystem through pollination. Despite growing public interest, detailed data on the diversity of stingless bee species and the challenges farmers face, particularly pest and disease infestations, remain scarce in some areas, such as Central Lombok. The aim of this study was to identify the bred species of stingless bees and the pest and disease species found in bee colonies in Rarung Village. The research was conducted from Juni to September 2024. The research methodology included field surveys, interviews with 4 farmers using snowball sampling techniques. In each farmers, we collected stingless bee and their pests from 10 stup and preserved in alcohol 70%. Morphological identification of bee species and pests was done in Plant Protection Laboratory, University of Mataram . The results showed that four species of stingless bees were being bred in Rarung Village: Tetragonula laeviceps, Tetragonula biroi, Tetragonula clypearis, and Tetragonula sapiens. Other major identified pests included ants (Formicidae), geckos (Gekkonidae), wasps (Vespidae), and signs of fungal pathogens. The results of this study show that bee species from outside Lombok were found in Rarung village that indicate thespecies diversity was affected by the practice of introducing species from outside Lombok.
Identification and Evaluation of Lactic Acid Bacteria from Collagen Milk as Potential Probiotic Candidates Suryani, Elsa Mega; Harmoko, Deni; Rosiah, Namrotur
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10576

Abstract

Collagen milk is a novel substrate that has rarely been investigated as a source of probiotic bacteria, despite its great potential as a functional food. This study aimed to isolate and characterize lactic acid bacteria (LAB) from collagen milk and to evaluate their tolerance to acidic conditions. The isolation and identification of LAB were conducted based on Gram staining, catalase testing, and cell morphology. Acid tolerance was assessed at pH 1, 2, and 3 to simulate gastric conditions. The results showed that a total of 21 LAB isolates were successfully obtained, most of which were rod-shaped and Gram-positive. Among these isolates, three superior strains SKF-174, SKF-106, and SKF-204 exhibited high tolerance to acidic environments, indicating their ability to survive under gastrointestinal conditions. These findings suggest that fermented collagen milk has the potential to serve as a promising source of probiotic lactic acid bacteria with strong acid resistance and desirable functional properties.
Identification of Types of Locally Cultivated Food Crops by the Mandar Community in Majene Regency, West Sulawesi Province Ramlah, Ramlah; Nasir, Yusrianto; Namira, Namira
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10586

Abstract

This study identifies the types of locally cultivated food crops of the Mandar people in Majene Regency, West Sulawesi. The Mandar people possess local agricultural wisdom passed down through generations, playing a vital role in food security and cultural identity. However, agricultural modernization threatens the sustainability of local plant practices and diversity, making documentation crucial for knowledge preservation and food security. Ethnobotanical methods were used through field surveys, participant observation, and in-depth interviews with farmers and community leaders. Taxonomic identification and confirmation were conducted using https://identify.plantnet.org/id; https://www.plantamor.com/. Data included local names in the Mandar language, cultivation techniques, planting patterns, seasons, and local uses. The results show that the Mandar people maintain various types of food crops, including local rice, local corn, tubers, vegetables, nuts, and local fruits. Each plant has a specific local name reflecting its characteristics. The cultivation system implements polyculture and sustainable crop rotation, with in-depth knowledge of seed selection, organic land management, and natural pest control. The Mandar people still maintain food crop diversity through a sustainable and adaptive cultivation system. This local knowledge is a valuable asset for food security and agrobiodiversity that needs to be documented, revitalized, and integrated with modern agriculture.
The Role of Boiler Ash and Chicken Manure on Macro Nutrient Availability and Growth of Maize (Zea mays L.) on Peat Soil Suswati, Denah; Fadilla, Ulfia; Kusuma, Eka Widiyawati Wijaya; Nuriman, Muhammad
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10621

Abstract

Peat soils are planting media that possess several chemical limitations, including acidic soil pH, low availability of macro- and micronutrients, and low base saturation, which categorize them as nutrient-poor soils. The use of site-specific ameliorants such as boiler ash and chicken manure as alternative materials to lime can improve soil pH and nutrient availability in peat soils. The objective of this study was to determine the effect of boiler ash and chicken manure application on the availability of macronutrients and the growth of maize (Zea mays L.) in peat soil. The research employed a factorial completely randomized design (CRD) consisting of two factors: the first factor was the rate of boiler ash with four treatment levels, and the second factor was the rate of chicken manure with four treatment levels, each replicated three times, resulting in a total of 48 experimental units. The parameters analyzed included soil chemical properties and plant growth indicators (plant height and stem diameter). The results showed that the combination treatment A2B3 (2000 g boiler ash/polybag + 600 g chicken manure/polybag) significantly increased the availability of N, P, K, Ca, Mg, and Na, as well as improved maize growth (plant height and stem diameter) on peat soil compared to the control treatment.
Future Acne Therapy MSC Secretome as an Antimicrobial Agent: Literature Review Putri, Monica Indiasti; Marlina, Marlina; Sudji, Ikhwan Resmala
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10622

Abstract

Acne vulgaris is a chronic inflammatory skin condition influenced by excess sebum production, bacterial colonization, and host immune responses. Microorganisms, particularly Cutibacterium acnes and Staphylococcus aureus, play a key role in acne pathogenesis and contribute to persistent inflammation. With increasing antibiotic resistance, innovative therapeutic approaches that are effective, safe, and immunomodulatory are urgently required. This literature review aims to evaluate the role of adipose-derived mesenchymal stem cell (ADMSC) secretome in inhibiting acne-causing bacteria. The review was conducted using databases including ResearchGate, PubMed, Google Scholar, and ScienceDirect, using keywords such as secretome, MSC secretome, antibacterial, C. acnes, S. aureus, and acne vulgaris. A total of 13 relevant research articles were identified. The ADMSC secretome contains antimicrobial peptides (e.g., LL-37), cytokines, growth factors, and extracellular vesicles that can disrupt bacterial membranes, enhance phagocytosis, and inhibit biofilm formation. Several studies demonstrate strong inhibitory effects against S. aureus, including resistant strains, while data on C. acnes remains limited but still supports its therapeutic relevance.

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