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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 2,949 Documents
 280   281   282   283   284 
The Relationship Between Insomnia and Suicidal Behavior in Adolescents at SMAN 11 Mataram Nensy Dwi Astika; I Putu Diatmika; Lale Justin Amelinda Elizar; Arfi Syamsun
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
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.v26i3.12264

Abstract

Adolescence is a vulnerable period for mental health problems, including suicidal behavior. Insomnia is frequently experienced by adolescents and may be associated with emotional dysregulation and psychological distress. This intention of this study was to analyze relationship between insomnia and suicidal behavior among adolescents at SMAN 11 Mataram. This analytical observational study used a cross-sectional design involving 89 students of SMAN 11 Mataram. The sample size was determined using the Slovin from a population of 113 students with a 5% margin of error. Sampling was conducted using stratified random sampling based on grade level: grade 10(29 students), grade 11(36 students), and grade 12(48 students), with proportional random selection resulting in 23, 28, and 37 students, respectively. Data were collected using the validated Indonesian version of the Insomnia Severity Index (ISI) and Suicide Behaviors Questionnaire-Revised (SBQ-R). Insomnia was categorized based on ISI score ≥10, while suicidal behavior risk was identified using SBQ-R score ≥7. Reliability analysis showed Cronbach’s alpha values of 0.750 for ISI and 0.896 for SBQ-R.Spearman’s rank correlation test showed a significant association between insomnia and suicidal behavior (r = 0.229; p = 0.031). It was concluded there is a positive association between insomnia and suicidal with a weak correlation.    
Computational Insights into the Antifungal Mechanisms of Coumarin and Hexanol from Ageratum conyzoides and Cyperus rotundus Against Colletotrichum spp Febryani, Noor; Benatar, Gilang Vaza; Hartini, Elya; Yulianto, Yanto; Hodiyah, Ida; Ridwan, Nur Fathurahman
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.v26i2.12269

Abstract

Chili anthracnose, caused by Colletotrichum spp., remains a major threat to crop productivity and fruit quality worldwide. The increasing resistance of fungal pathogens to synthetic fungicides highlights the need for sustainable, plant-based alternatives. This study provides computational insights into the antifungal mechanisms of coumarin and hexanol, two major bioactive compounds derived from Ageratum conyzoides and Cyperus rotundus. Molecular docking and molecular dynamics simulations were employed to examine the interactions of these compounds with key Colletotrichum proteins, including calmodulin, PETFP cutinase complex, and chitin deacetylase. The docking results revealed that coumarin exhibited stronger binding affinities and more stable conformations within the enzyme active sites than hexanol, forming multiple hydrogen bonds and π–π stacking interactions with catalytic residues. Molecular dynamics analyses further confirmed the structural stability and compactness of coumarin–protein complexes, indicating its potential to disrupt fungal enzymatic functions critical for pathogenicity. These findings suggest that coumarin, in particular, may serve as a promising lead compound for the development of eco-friendly antifungal agents. The study contributes to a molecular-level understanding of plant-derived antifungal mechanisms, supporting future research into the rational design and optimization of biofungicides for sustainable agriculture.
Monitoring Adverse Drug Reactions to Tuberculosis Drugs among Category 1 Patients at Bojonegoro Health Center Kholillah, Nadhi Fatul; Hutahaen, Titi Agni; Pitaloka, Ria Indah Kusuma
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.v26i2.12276

Abstract

Tuberculosis caused by Mycobacterium tuberculosis remains a major public health issue in Indonesia. Prolonged use of anti-tuberculosis medications may lead to adverse drug reactions (ADRs). This study aimed to describe the incidence and characteristics of ADRs among Category 1 tuberculosis patients at Bojonegoro Health Center. A descriptive observational study with a retrospective design was conducted during April–May 2026 using medical records and structured interviews. The study sample consisted of 37 patients selected from a population of 40 using the Slovin formula and purposive sampling technique. Data were analyzed descriptively using frequency and percentage distributions, while ADR causality was evaluated using the Naranjo algorithm. The results indicated that ADRs were more frequently observed in female patients, individuals aged 46–55 years, and during the intensive phase of treatment. The most commonly reported ADR was reddish urine discoloration (100.0%), followed by anorexia (67.6%) and nausea (59.5%). Most ADRs were classified as mild to moderate in severity, while decreased vision was reported in 10.8% of patients. Based on the Naranjo scale, 93.4% of ADRs were categorized as probable. Regular monitoring of ADRs is recommended to support early detection and appropriate management during anti-tuberculosis therapy.
The Effect of Additional Ameliorants on The Growth of Agarwood, Jackfruit, and Durian Seedlings in Former Gold Mining Land Afratullah, Afratullah; Aji, Irwan Mahakam Lesmono; Shabrina, Hasyyati
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.v26i2.12281

Abstract

Post-gold mining soils generally exhibit low fertility, acidic pH, and limited nutrient availability, which constrain plant growth and revegetation efforts. This study aimed to evaluate the interaction effect of compost and dolomite ameliorants on the growth of gaharu (Gyrinops verstegii), jackfruit (Artocarpus heterophyllus), and durian (Durio zibethinus) seedlings cultivated on post-gold mining soil. The experiment was conducted in a greenhouse using a Completely Randomized Design (CRD) with a factorial arrangement consisting of two factors: ameliorant treatments (without ameliorant, 50 g compost + 50 g dolomite, and 60 g compost + 40 g dolomite) and plant species (gaharu, jackfruit, and durian). Each treatment combination was replicated three times, resulting in 27 experimental units. Growth parameters observed included plant height, stem diameter, leaf number, root length, fresh biomass weight, and dry biomass weight. Data were analyzed using Analysis of Variance (ANOVA) followed by the Honestly Significant Difference (HSD) test at the 5% significance level. The results showed that the interaction between ameliorants and plant species significantly affected stem diameter, leaf number, and fresh biomass weight, but had no significant effect on plant height, root length, and dry biomass weight. The best growth performance was generally obtained from the application of 60 g compost and 40 g dolomite. Therefore, compost and dolomite can be recommended as effective soil ameliorants to support revegetation programs on post-gold mining lands using forestry and multipurpose tree species.
Correlation between HbA1c and TG/HDL Ratio with eGFR in Type 2 Diabetes Mellitus Patients in Risa Sentra Medika Hospital Mataram Novianti Anggie Lestari; Ima Arum Lestarini; Yan Adhitya Kusuma
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
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.v26i3.12284

Abstract

One of the main causes of declining kidney function is type 2 diabetes mellitus (DM2), which is typified by a drop in the estimated glomerular filtration rate (eGFR). The triglyceride-to-HDL (TG/HDL) ratio indicates atherogenic dyslipidemia, which contributes to the development of diabetic nephropathy, whereas HbA1c represents long-term glycemic management. This study aimed to analyze the correlation between HbA1c and TG/HDL ratio with eGFR in DM2 patients in Mataram. A cross-sectional analytical study was conducted involving 56 patients at Risa Sentra Medika Hospital from Juli to Desember 2025. Laboratory data were used to gather information on HbA1c, triglycerides, HDL, serum creatinine, and eGFR. The correlation between the variables was evaluated using regression analysis and Pearson correlation. The eGFR was 78.37 ml/min/1.73 m², the TG/HDL ratio was 5.84, and the mean HbA1c was 9.21%. The TG/HDL ratio had a very weak positive connection with eGFR (r = 0.143), but HbA1c had a very poor negative correlation (r = -0.037). According to regression analysis, neither variable was statistically significant (p>0.05) and only explained 2.2% of the variation in eGFR (R2 = 0.022). among conclusion, among patients with DM2, there was no discernible relationship between HbA1c and the TG/HDL ratio with eGFR.
Fungal Resistance of Canvas and Dluwang in Humid Tropics Septiyana Baroroh; Lontar Sauh Tantarlia
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
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.v26i3.12285

Abstract

Canvas and dluwang are cellulose-based painting supports that differ in material composition and surface characteristics, resulting in different susceptibilities to fungal biodeterioration. This study evaluated fungal colonization dynamics on canvas and dluwang using Trichoderma sp., a cellulolytic fungus commonly associated with deterioration of organic cultural materials. Sterile canvas and dluwang were placed on Potato Dextrose Agar (PDA) colonized by Trichoderma sp. and incubated at room temperature under a relative humidity of >70% for 28 days. Fungal growth was assessed every seven days using a semi-quantitative surface coverage categorization (0%, <25%, 25–50%, 50–75%, >75%). The results revealed different colonization patterns between the two materials. Dluwang showed rapid colonization, increasing from 25–50% at day 7 to >75% by day 14 and remaining fully colonized thereafter. In contrast, canvas remained at <25% colonization throughout the incubation period. These findings highlight the importance of considering material characteristics and resistance to fungal biodeterioration in preventive conservation and support the development of effective conservation strategies for organic artistic supports in tropical environments.
Turtle Nesting and Conservation Management in Amping Parak, West Sumatra Zettyra Sandova; Firly Widuri; Aulia Rizky; Fauri Yatul Irfan Yanti; Jabang Nurdin; Wilson Novarino; Aprizal Aprizal
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
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.v26i3.12294

Abstract

Sea turtles are protected marine animals that play a crucial role in maintaining the balance of coastal and marine ecosystems. This study aims to examine the nesting behavior of sea turtles and evaluate the management of the conservation area in Amping Parak, Pesisir Selatan Regency. Conducted from April 15 to May 28, 2026, this research employed a qualitative descriptive method utilizing observation and literature reviews. The results indicate that turtles nest at night, with an incubation period of 45–60 days, which is strongly influenced by nest temperature and humidity. Although Amping Parak has high potential as a nesting habitat, its management is hindered by limited funding and resources. Therefore, optimizing conservation efforts requires nest protection, semi-natural hatchery practices, and community education to ensure the sustainability of sea turtle conservation.
Analysis of the Relationship between Lifestyle and Adaptation of Adolescents in Islamic Boarding Schools in East Java Sulika, Erni; Qurota’Ayun, Henny; Utami, Sri; Dwisatyadini, Mutimanda
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.v26i2.12296

Abstract

Skin diseases remain a common health problem in boarding school environments, particularly among tensth-grade students who are undergoing early adolescent adaptation. Communal living conditions, high occupancy density, and limited personal care practices increase the risk of skin disorders such as acne and scabies. This study aimed to analyze the pattern of skin disease occurrence and the response to treatment using Mikania micrantha, with particular attention to lifestyle factors and adolescent adaptation in an Islamic boarding school in East Java. A descriptive quantitative approach with an observational design was employed. Data were obtained from health records of female tenth-grade students who experienced skin disorders and received topical treatment using Mikania micrantha. Descriptive analysis was conducted to examine case distribution and treatment outcomes. The findings indicate that acne and scabies were the most prevalent skin conditions among students. The use of Mikania micrantha showed generally positive responses; however, treatment effectiveness was closely related to environmental conditions and hygiene behaviors. This study highlights the importance of an integrative approach combining traditional herbal treatment, environmental management, and the promotion of clean and healthy living behaviors to address skin health issues among adolescents in boarding school settings.
Influence of Various Types of Chitosan on Biomass and Callus Morpology of Momordica Cochinchinensis in Vitro Nazwa S. Lamante; Devi Bunga Pagalla; Jusna Ahmad; Novri Youla Kandowangko; Indriati Husain
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
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.v26i3.12314

Abstract

Momordica cochinchinensis is a medicinal, herbs locally known in gorontallo as dumbaya. Tradisionally, this plant has been utilized as both a food of food course a herbal medicine. Due to its rich contains of bioactive compounds, making it a potential candidate for development through plant tissue culture. This study aimed to determine the effects of different chitosan concentrations on the biomass and callus morphology of M. cochinchinensis cultivated in vitro. The experiment was arranged in a non-factorial completey randomized design consisting of three chitosan concentrations: 15 mg L -1, 25 mg L-1, and 35 mg L-1, respectively, as well as a 5000 mg L-1 chitosan stock solution per liter of MS medium. Each treatment consisted of three replicates. The observed parameters included callus fresh weight, dry weight, color, texture, and the percentage of callus formation. Data were analyzed using a one-way ANOVA at a 5% significance level. Since the fresh weight data showed significant differences, it was followed by a Duncan’s Multiple Range Test (DMRT) at the 5% level. The results showed that different chitosan concentrations significantly affected the callus fresh weight (F = 7.932; p = 0.021). the 15 mg L-1 treatment yielded the highest fresh weight, 0.04067 ± 0.0115 g, which was significantly different from the 35 mg L-1 treatment (0.3000 ± 0.0458 g) but not significantly different from the 25 mg L-1 treatment (0.3300 ± 0.0346 g) conversely, chitosan concentration did not significantly affect the culls dry weight (F = 3.519); p = 0.097). all treatmeants resulted in 100% callus formation with white and friable callus morphology. These findings indicate that among the tasted concentrations, 15 mg L-1 of chitosan is the most favorable concentration for demonstrating callus fresh weight accumulation of M. cochinchinensis under in vitro culture conditions.
Morphological and Morphometric Analysis of Reticulated Python (Malayopython reticulatus) Crossbreeds within the Snake Enthusiast Community Nicky Utami Adhaeni; Iqbal Mujadid; Nestiyanto Hadi; Noer Sarifah Ainy; Erwandi Supriyadi
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
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.v26i3.12317

Abstract

This study aimed to analyze the morphological and morphometric characteristics of hybridized reticulated pythons (Malayopython reticulatus) in the Tabu Indonesia Community, Cimanggis–Depok. The research used a quantitative descriptive method through direct observation of morphological characters and morphometric measurements of hybrid pythons. The observed characters included color patterns, head shape, scale arrangement, body length, tail length, and the number of certain scales. The results showed variations in the morphological and morphometric characteristics of hybrid reticulated pythons, particularly in dorsal patterns, color intensity, body size, and the number of ventral and subcaudal scales. These variations were influenced by genetic combinations of the parent stock and environmental factors during captivity. This study concluded that hybridized reticulated pythons in the Tabu Indonesia Community, Cimanggis–Depok possess relatively high phenotypic diversity. The results are expected to provide scientific information regarding the morphological and morphometric characteristics of hybrid reticulated pythons in Indonesia.

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