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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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Composition and Structure of Tree and Sapling Level Plants in Nagari Paru Forest, Sijunjung Regency Geovana, Savira; Chairul, Chairul; Mukhtar, Erizal
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.9949

Abstract

This study discusses the composition and structure and estimates the potential carbon reserves and environmental service value of the Nagari Paru Forest (Rimbo Larangan) in Sijunjung Regency, West Sumatra. The method used was the transect method with purposive sampling. The vegetation observed consisted of trees and tree seedlings. The results showed that the tree-level vegetation consisted of 17 families, 21 genera, 23 species, and 53 individuals, with Hopea sangal as the dominant species, while the sapling-level vegetation consisted of 17 families, 23 genera, 24 species, and 94 individuals, dominated by Drepananthus ramuliflorus. The diversity index (H') was moderate, at 2.95 for trees and 2.74 for seedlings. This study shows that the Nagari Paru Forest has great ecological potential and can support climate change mitigation efforts and community empowerment through environmental service schemes.
The Danyoung Classification Correlation with The Severity of Allergic Rhinitis and Symptoms Duration Tri Wirattami, Ayunita; Agustina, Tanti
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.9974

Abstract

The Danyoung classification characterizes progressive endoscopic changes in the nasal mucosa of allergic rhinitis (AR) patients, but its clinical correlation with disease severity and chronicity remains unestablished. This cross-sectional study aimed to determine the association between Danyoung stages (1: hypertrophic, 2: dimple, 3: wrinkled) and AR symptomatology. Fifty AR patients from a tertiary allergy-immunology clinic were enrolled over a six-month period. Data on symptom duration, profile, and ARIA-based severity (intermittent/persistent, mild/moderate-severe) were collected. Nasoendoscopic examination was performed for Danyoung staging. Statistical analysis using chi-square tests demonstrated no significant association between Danyoung stage and symptom duration (p=0.85) or clinical disease severity (p=0.96). The findings indicate that the Danyoung classification, as an objective morphological descriptor, is not a statistically significant predictor of symptom-based AR severity or chronicity in this patient cohort. This suggests that the progression of endoscopic nasal mucosal changes may follow a pathway independent of the clinical parameters defined by ARIA guidelines, limiting its utility as a standalone clinical prognostic tool.
Histological Alterations of the Duodenum Induced by Sleeping Pills Krisnasari, Alfian Silvia; Sugianto, Yohanes
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10058

Abstract

In Indonesia, sleep disorders, including those triggered by fatigue, have a relatively high prevalence. Data indicate that about 10% of the population, or approximately 28 million people, experience insomnia, with findings from the Indonesia Family Life Survey (IFLS-5) revealing that 33.3% suffer from mild insomnia, 11% from clinical insomnia, and 1% of respondents use sleeping pills. One type of sleeping pill classified as a narcotic and psychotropic substance is Diazepam (Psychotropic IV). This study aimed to investigate changes in the digestive system, particularly in the duodenum, as the organ responsible for absorbing various substances entering the body. The research used 12 rats divided into four groups: a control group (1% Polyethylene Glycol 1000) and three diazepam-treated groups (P1, P2, P3) with concentrations of 62.25, 83, and 124.5 mg/kg BW, respectively. Treatments were administered for 28 days. Afterward, the rats were euthanized, and the duodenum was necropsied. Specimens were prepared using the paraffin method and stained with hematoxylin-eosin. Histological structures were examined microscopically and scored. Observed histological damage included glandular dilation, edema, pyknosis, congestion, epithelial erosion, and neutrophil infiltration. Diazepam acts by enhancing the effect of the neurotransmitter GABA in the central nervous system, producing sedative and muscle relaxant effects; however, this muscle relaxation can also affect smooth muscles in the gastrointestinal tract, reducing intestinal motility.
Radiologic Features and Prognosis of Gastric Perforation Putra, I Putu Aryana Kusuma; Inayah Wulandari; Shira Shalsabina Shafitri
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10132

Abstract

Gastric perforation carries high rates of morbidity and mortality, making it a critical surgical emergency. This systematic review presents recent evidence of radiological imaging, including its evaluation for the diagnosis of gastric perforation and its effect on patient prognosis. The search strategy included an extensive literature review from online databases, including PubMed and Google Scholar, with key phrases (such as "gastric perforation" and "diagnostic imaging"). A qualitative synthesis was done to evaluate the diagnostics of different imaging techniques and prognostic factors. The most relevant result is that Multidetector Computed Tomography (MDCT) continues to be the golden test, showing 82-90% accuracy in detecting perforation based on identifiable characteristics of the extraluminal free air. In summary, gastric perforation is a life-threatening condition where quick, accurate diagnosis with MDCT is vital for better outcomes, as delays exceeding 24 hours significantly raise mortality risk. This review highlights the importance of integrating MDCT into clinical protocols to speed up diagnosis and treatment, ultimately enhancing patient survival.
Carbon Stock of Mangrove Vegetation Derived from Aboveground and Belowground Biomass in Tulehu Waters, Central Maluku Natsir, Nur Alim; Mulyawati, Nina Y.; AF, Asyik Nur Allifah; Jamdin, Zamrin; Arifin, Selti; Kilbaren, Rukaya
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10160

Abstract

The role of mangroves in mitigating climate change is realized through their carbon storage capacity, but deforestation carried out for the expansion of the Tulehu pier threatens the existence of these carbon reserves. This study aims to estimate mangrove vegetation carbon stocks based on aboveground biomass and belowground biomass in Tulehu Waters, Central Maluku. Sampling was conducted using purposive sampling using a non-destructive allometric model on a 10 x 10 m plot. Aboveground and belowground biomass were calculated and then converted into mangrove carbon stocks. Data evaluation was carried out by measuring mangrove biomass and carbon stocks in the Tulehu Waters. Research findings show that the average carbon reserves of mangrove vegetation are the highest on the surface were found at station II (17,571 tC/ha), and underground were found at station (15,222 tC/ha). These findings confirm that mangrove vegetation in Tulehu Waters has significant potential as a carbon sink and support conservation strategies and sustainable coastal management.
Insect Diversity and Pest Attack Intensity of Leaf Beetle (Epilachna sparsa) on Purple Eggplant (Solanum melongena L.) with the Application of Botanical Pesticides Sopandi, Deni; Siriyah, Siti Latifatus; Laksono, Rommy Andhika; Saputro, Nurcahyo Widyo Daru
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10179

Abstract

The extensive use of synthetic pesticides has been shown to adversely affect ecosystems, including the diversity of insect populations. As a result, there is an increasing demand for environmentally sustainable pest control methods, such as botanical pesticides. This study aims to evaluate the diversity of insect species as well as the attack intensity of the leaf beetle (Epilachna sparsa) on purple eggplant (Solanum melongena L.) through the application of botanical pesticides. The research used a single-factor Group Random Design (RAK) with five replicates and five treatment groups: control, papaya leaf, neem leaf, a combination of papaya and neem leaves, and synthetic pesticide. Insect sampling was conducted using types of trap: pitfall traps, yellow sticky traps, and sweep nets, while the collected data were analyzed using analysis of variance, followed by a Least Significant Difference (LSD) test at the 5% significance level. The findings revealed that botanical pesticides did not have a significantly different effect on insect diversity or pest attack intensity, with the Shannon-Wiener diversity index ranging from 2.08–2.29, indicating a moderate level of diversity (1 < H’ < 3). Notably, the treatment using papaya leaf extract resulted in the lowest damage intensity by leaf beetle (E. sparsa), ranging from 15.83% to 20.83%. These results suggest that botanical pesticides, particularly papaya leaf extract, can reduce pest damage while maintaining ecological balance, as reflected in the shifts in abundance of various insect orders and their population dynamics.
Evaluation of Total Phenolics and Antibacterial Activity of Flavedo, Albedo, and Inner Membrane of Pamelo Peel (Citrus maxima (Burm.) Merr.) Prasetyo, Angga; Findi Citra Kusumasari; Irene Ratri Andia Sasmita; Emi Kurniawati; Mohammad Mardiyanto
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10189

Abstract

Pamelo peel (C. maxima (Burm.) Merr.) is a promising agricultural by-product that contains bioactive phenolic compounds. This study evaluated the total phenolic content and antibacterial activity of 70% ethanol extracts from three peel parts: flavedo, albedo, and inner membrane. Total phenolic content was quantified using the Folin-Ciocalteu method and antibacterial activity against Staphylococcus aureus was tested by the disc diffusion method. The results revealed significant variation in phenolic levels among the peel parts. Albedo contained the highest total phenolics, followed by the inner membrane and flavedo. Antibacterial testing showed that only the albedo extract exhibited inhibitory activity, whereas the other parts showed no activity. These results suggest that albedo is the most promising section of pomelo peel as a phenolic-rich part and an antibacterial agent. Further investigations are required to characterize the dominant phenolic compound and test antibacterial effects using purified fractions. Overall, this study highlights the potential of pamelo peel, particularly the albedo, as a value-added material for developing natural phenolic-based products.
Comparative Modeling and Molecular Docking of Alcohol Acyltransferase in Fruit Aroma Biosynthesis Kamillah, Wa Ode; Siti Purnamasari, Wa Ode
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10240

Abstract

Fruit aroma arises from volatile esters synthesized by alcohol acyltransferase (AAT) of the BAHD family. This study analyzes AATs from Citrus sinensis, Vitis vinifera, Malus domestica, and Fragaria × ananassa through sequence alignment, secondary structure prediction, 3D modeling, and docking with acetyl-CoA. Secondary structure prediction shows conserved α-helices and β-sheets forming the characteristic α/β fold, with loops providing interspecies variation. all AATs retain the HXXXD motif and DFGWG/NFGWG variants with ~450 residues. Docking reveals a consistent acetyl-CoA orientation but species-specific interactions: polar/charged residues (Arg, Ser, His, Gln/Asn) form hydrogen and electrostatic bonds, whereas aromatic/aliphatic residues (Phe, Ile, Met) provide hydrophobic stabilization. Malus domestica exhibits the strongest polar network (6 H-bonds; ≈ −7.8 kcal·mol⁻¹), whereas Citrus sinensis relies more on hydrophobic contacts (≈ −6.9 kcal·mol⁻¹). These findings indicate that a conserved structural framework preserves the core catalytic mechanism of AATs while species-specific active-site microarchitecture modulates substrate affinity and selectivity, likely contributing to differences in fruit volatile ester profiles and offering candidate residues for targeted functional validation and aroma improvement.
Chronic Anal Fissure: A Literature Review Wulandari, Baiq Nurhandini; Mikailla, Romy Healthy; Wardana, Shira Putri; Aisyah S.F., Nadine; Sena R., Panji; Aghni, Hasna Tazkia; Nurhidayati, Nurhidayati
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10139

Abstract

Chronic anal fissure is a common anorectal condition characterized by persistent mucosal tears that cause severe pain and reduced quality of life. Effective management is essential, as many cases show poor response to conservative treatment. This study aims to review recent advances in the diagnosis and management of chronic anal fissure. A literature review was conducted through PubMed, Google Scholar, and ProQuest using the keywords “Chronic Anal Fissure OR Persistent Anal Fissure,” applying inclusion and exclusion criteria to ensure relevance and scientific quality. The findings indicate that conservative therapy achieves healing in only about 50% of patients, while others require pharmacological or surgical interventions. Newer modalities, including topical calcium channel blockers, botulinum toxin injections, and modified surgical techniques such as anal advancement flap, demonstrate higher success rates with fewer complications. Furthermore, multitarget topical formulations have recently emerged as promising therapeutic options. In conclusion, the management of chronic anal fissure is evolving toward more effective and safer strategies. Further research is recommended to validate multitarget therapies and to develop individualized treatment approaches that improve patient outcomes and long-term quality of life.
Physiological Response and Behavioral Patterns of Ettawa Crossbred Goats (PE) to the Environmental Conditions of Mount Sangiang Wandira, Ica Ayu; Sadia, I Nyoman; Dohi, Muhammad; Karni, Ine
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10186

Abstract

The adaptive capacity of animals is a crucial factor in maintaining survival and productivity, particularly within sustainable livestock systems in tropical regions under climatic stress. This study aimed to analyze the physiological responses and daily behavioral patterns of Ettawa Crossbred (PE) goats to the environmental conditions of Mount Sangiang, Wera District, Bima Regency. The research was conducted using an observational descriptive approach with samples of PE goats from various age groups and sexes. Physiological parameters observed included body temperature, respiratory rate, and heart rate, while behavioral aspects covered feeding, drinking, resting, exploration, and social interaction. The results showed that PE goats were able to maintain body temperature within the normal range (36–38°C), even when daytime environmental temperatures reached 32°C. Adjustments in respiratory rate and heart rate served as the primary mechanisms for coping with heat stress, with younger goats tending to be more sensitive than adults. In terms of behavior, PE goats grazed in the morning and afternoon when temperatures were cooler, while midday was used for resting and drinking to minimize the risk of heat stress. Exploration of the savanna was carried out to meet feed requirements, while social interactions occurred more frequently at night in the cooler and more humid coastal areas. Overall, PE goats demonstrated strong physiological and behavioral adaptability to the environmental conditions of Mount Sangiang.

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