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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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Growth of Pontianak Siamese Shoot Culture (Citrus nobilis var. microcarpa) Supplemented with Tomato Extract and BAP (6-benzylaminopurine) Istiani, Duwi Rida; Mukarlina, Mukarlina; Ifadatin, Siti
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.9666

Abstract

Pontianak Siamese (Citrus nobilis var. microcarpa) is a superior agricultural commodity especially in Sambas Regency, West Borneo. One solution to assist in the supply of Pontianak Siamese seedlings is propagation with tissue culture. This research aims to determine the impact of supplementation of tomato extract and BAP on the growth of Pontianak Siamese shoot cultures. This research was conducted from February to May 2023, at Biology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Tanjungpura University. The research design used a Completely Randomized factorial design with two factors. The first factor is the treatment of BAP with concentrations 0M; 10-7M; 10-6M; and 5.10-6 M, while the second factor was tomato extract with concentrations 0% 7.5%, 10%, and 12.5%. The research results show the treatment B3T0 (5.10-6 M BAP and 0% T) has the most leaves (7 strands), the longest root length (0.30 cm), and the most roots (1 root).
Insects in the People's Sugarcane Plantations of Nagari Lawang, Matur District, Agam Regency Yuza, Bunga Zarifa; Safitri, Elza; Zikra, Zikra; Abizar, Abizar
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.10000

Abstract

Insects are the class with the largest number of species and the widest distribution in the Animalia kingdom, this is because insects are organisms that are easily found on the earth's surface. Insects are one of the Arthropod classes that have a body divided into caput, thorax and abdomen. This study aims to determine the types of Insects found in the People's Sugarcane Plantation of Nagari Lawang, Matur District, Agam Regency. This study is a descriptive survey study with direct insect sampling in the field using insect nets with (sweeping) and (hand sorting) techniques. Sampling was carried out using the exploration method at 3 different locations with 2 time periods (morning and afternoon). From the research results, 22 species of insects from 7 orders and 16 families were found, consisting of Aspidimorpha deusta, Lygistopterus perfacetus, Neopyrochroa fermoralis, Epilachna admirabilis, Coelophora inaequalis, Cofana subvirencens, Bothrogonia ferruginea, Gonocerus acuteangulata, Tetrix subulata, Valangan nigricornis, Acrida cinirea, Trilophidia annulata, Tessellana tessellata, Musca domestica, Netelia inedita, Vespa affinis, Ypthima baldus, Forsterinaria quantius, Nyctemera baulus, Hypagyrtis esther, Eurema hecabe, dan Orthetrum Sabina.
Literature Review: The Potential of Turkey (Meleagris gallopavo) as a Meat Producer Tamzil, Mohammad Hasil
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): 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.v25i3.10022

Abstract

The turkey (Meleagris gallopavo) is a large poultry species with unique phenotypic diversity, exotic characteristics, and distinctive meat flavor. Globally, it has been recognized as an important source of high-quality animal protein with relatively lowfat content. In Indonesia, turkey farming remains underdeveloped despite its considerable potential as an alternative meat source. This study is a literature review that synthesizes scientific findings from various references related to the domestication, distribution, and meat production potential of turkeys. Domestic turkeys are descendants of the wild turkey (M. gallopavo gallopavo), first domesticated in Central Mexico and parts of the United States. From there, domesticated stocks were introduced to Europe via Spanish colonial routes and subsequently spread worldwide. In Indonesia, turkeys have shown promising adaptability and potential for meat production. However, their development is hindered by limited access to high-quality breeding stocks, both in terms of quantity and genetic improvement. Turkeys possess significant potential to serve as an alternative poultry species for meat production in Indonesia. Addressing constraints in breeding stock availability and improving genetic resources are essential steps toward optimizing their productivity and sustainability.
Isolation and Identification of Endophytic Bacteria Producing IAA and Phosphate Solubilizers from Mangrove Roots in the Bagek Kembar Sekotong Area and In Vitro Testing on the Germination of Vigna radiata L. Havizah, Ilma Nur; Zulkifli, Lalu; Rasmi, Dewa Ayu Citra; Sedijani, Prapti
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.10069

Abstract

Mangroves are a potential source of plant growth-promoting bacteria (PGPB) due to their unique habitat. Exploring potential endophytes as biofertilizers to reduce dependence on chemical fertilizers. This study aims to determine the effect of IAA-producing endophytic bacteria and phosphate solubilizers from mangrove roots on the germination of mung beans (Vigna radiata L.). The bacteria were isolated from mangrove roots in the Bagek Kembar Mangrove Ecosystem Area, Sekotong, West Lombok. The study began with the isolation of endophytic bacteria, followed by characterization, including morphological identification, cell morphology (via Gram staining), and physiological properties (biochemical testing). The potential of endophytic bacteria to produce IAA was tested qualitatively (using colorimetry) and quantitatively (using a spectrophotometer at a wavelength of 530 nm). Additionally, the ability of endophytic bacteria to solubilize phosphate was tested both qualitatively (using a screening method) and quantitatively (using a spectrophotometer at a wavelength of 880 nm). To test the effect of endophytic bacteria on soybean germination, green soybean seeds were grown on modified Murphy medium for 5 days, with the observed parameters being plant height, root length, fresh weight, and dry weight. The results of the green soybean germination observations were analyzed using One-Way ANOVA. Based on the research results, 11 endophytic bacterial isolates were found to be capable of producing IAA in the range of 16.88 to 30.28 ppm. Meanwhile, in terms of phosphate solubility, based on the screening results, 6 out of 11 isolates were able to solubilize phosphate with an average dissolved phosphate concentration of 17.63 ppm on the 4th day of incubation. The results of the analysis of the effect of IAA-producing bacteria and phosphate solubilizers on the germination of green beans showed a significant effect on plant height, root length, fresh weight, and dry weight of green bean plants.
Isolation and Identification of IAA-Producing and Phosphate-Solubilizing Rhizobacteria from Sesuvium portulacastrum and In Vitro Growth-Promotion Effect on Vigna radiata L. Yuliana, Baiq Fadilla; Zulkifli, Lalu; Rasmi, Dewa Ayu Citra; Sedijani, Prapti
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.10070

Abstract

Sesuvium portulacastrum is a coastal plant resistant to high salt content and drought. Exploration of rhizosphere bacteria is necessary to obtain potential isolates that can be developed as biofertilizers in the future. This study aims to isolate and identify rhizosphere bacteria from Sesuvium portulacastrum that are able to produce Indole Acetic Acid (IAA) and dissolve phosphate, and to test their effects in vitro on the germination of Vigna radiata L. Rhizosphere bacteria from the Bagek Kembar Mangrove Ecosystem Area, Sekotong, West Lombok Regency. A total of 14 bacterial isolates were successfully obtained and characterized based on morphological, physiological, and biochemical properties. All isolates produced IAA qualitatively and quantitatively (19.85–33.71 ppm) with isolate KT1 having the highest production (33.71 ppm). Qualitative phosphate solubilization test showed that 12 isolates were able to form a clear zone, while quantitatively it ranged from 7.86 to 16.18 ppm with isolate K8 having the highest value (16.18 ppm). Selected isolates KT1 (the highest IAA producer), K8 (the highest phosphate solubilizer), and K5 (both with high abilities) were tested for their effect on mung bean germination. Inoculation had a significant effect on plant height, root length, and dry weight (p<0.05). These results indicate that S. portulacastrum rhizosphere bacteria have the potential to be an environmentally friendly biofertilizer for plants in high-salinity soils.
Analysis of Growth, Recruitment Patterns, Mortality, and Exploitation Rate of Yellowfin Tuna (Thunnus albacares) Landed at Kendari Ocean Fishing Port (PPS) Nawir, Muh. Fahmi Saputra; Asriyana, Asriyana; Nur, Andi Irwan
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.10085

Abstract

Population parameters such as growth, recruitment patterns, mortality, and exploitation rates have a very crucial role in sustainable fisheries resource management. This study aims to analyze the growth, recruitment patterns, mortality, and exploitation rate of yellowfin tuna (Thunnus albacares) at the Kendari Ocean Fishing Port. Data were obtained from fishermen's catches using mini purse seine fishing gear at the Kendari Ocean Fishing Port (PPS) during the period June to November 2024. The analysis was carried out using the von Bertalanffy method for growth, recruitment patterns, mortality estimation, and exploitation using FiSAT II software. The findings indicated that the yellowfin tuna's estimated maximum length (L∞) reached 70.20 cm, with an annual growth coefficient (K) of 0.50. The recruitment trend revealed a significant peak in August, registering a rate of 19.55%. The total annual mortality rate (Z) was noted at 6.14, comprising a natural mortality (M) rate of 0.90 per year and a fishing mortality (F) rate of 5.25 per year. The exploitation rate (E) calculated at 0.85 per year suggests that the yellowfin tuna caught at Kendari PPS in the Banda Sea is subject to overfishing. This analysis offers crucial insights for the sustainable management of yellowfin tuna stocks and suggests that additional research on the fishing equipment employed in the Banda Sea for capturing yellowfin tuna be conducted.
A Literature Review on Transgenic Crops in Indonesia and ASEAN Countries: Transgenic Research Development and Future Prospects for Food Sovereignty Zulkarnain, Alivia; Nurhafitri, Amanda; Tjong, Djong Hon; Idris, Muhammad
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.10224

Abstract

The growing global population, climate change, and limited agricultural land are key challenges threatening food security. One innovative solution is the development of transgenic crops, genetically engineered plants that possess superior traits such as resistance to pests, diseases, abiotic stress, and improved nutritional value. This literature review explores the historical development of transgenic research in Indonesia and other ASEAN countries, the technological approaches used—including Agrobacterium-mediated transformation, biolistic methods, and CRISPR/Cas9 - and the future prospects for achieving national food sovereignty. While countries like China and the Philippines have advanced in Genetically Modified Organism (GMO) commercialization, Indonesia remains in the research phase due to various obstacles, including limited expertise, low research funding, regulatory constraints, and public acceptance. Strengthening regulatory frameworks, human resource development, and international collaborations are essential for supporting sustainable agricultural biotechnology. This paper highlights the need for a strategic, science-based approach to integrating transgenic technology into Indonesia's agricultural system as part of its long-term food security and innovation agenda.
The Effectiveness of Vitamin C on Iron Absorption in Adult and Young Women Soeka, Luh Made Anindita Adristi; Prabawa, Aditya; Meilani, Ni Komang Putri
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.10524

Abstract

Anemia is a common health problem among women, particularly adolescents, due to increased physiological demands.According to WHO data, the prevalence of anemia in Indonesia in  2024 was  34.2% with a target prevalence of 13.1%. Given this issue, the purpose of this study was to find out how effective vitamin C is in iron absorption to reduce anemia rates. The method used in writing this article is a Narrative Literature Review based on searches conducted through Google Scholar, PubMed, and SageJournal for articles published between 2015–2025. Nine studies that met inclusion and exclusion criteria using the PRISMA approach were analyzed narratively.From the resultsof the study, there is variation in the number of doses used in experimental and quasi-experimental studies. This review also considers studies involving iron stores, such as serum ferritin, to compare with hemoglobin analysis, which is often overlooked. Overall, the evidence indicates that vitamin C supports iron absorption and contributes to improved hemoglobin status. The effect is observed consistently across various study designs.  For this reason, every woman should make sure to gets enough vitamin C, which is essential for improving iron absorption.
Pulmonary Function Test of Compressor Divers in Sekotong Subdistrict, West Lombok, West Nusa Tenggara Widiastuti, Ida Ayu Eka; Yoga Pamungkas Susani; Putu Suwita Sari; Basuki Rahmat
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.10591

Abstract

Diving activities using tire compressors, as practiced by some traditional fisherman-divers along the coast of Lombok Island when hunting fish and other marine products can cause lung dysfunction. The purpose of this study was to evaluate lung function in traditional divers who use tire compressors in Sekotong District, West Lombok, and to identify possible respiratory disorders arising from such diving activities. This research was an observational analytic study with a cross-sectional design. The data collected consisted of pulmonary function test results obtained through spirometry examination, including Forced Vital Capacity (FVC), Forced Expiratory Volume in 1 second (FEV₁), and the FEV₁/FVC ratio. Descriptive analysis consists of FVC, FEV₁, and FEV₁/FVC ratio values and their interpretations.  The results showed that the FVC value was 25.6% lower than the predicted value, while the FEV₁ value was 21.2% lower than the expected value. Most of the subjects (18 people) experienced restrictive-type pulmonary disorders (60%), which was higher than the proportion of subjects with normal pulmonary function (36.7%), while 3.3% experienced obstructive-type pulmonary disorders. Traditional divers who use tire compressors are at risk of reduced vital capacity and forced expiratory volume in one second.
Ethnobotanical Study of Medicinal Plants in Karang Sidemen Village Lombok Central and Their Development as Biology Learning Material Putri, Tasya Intania; Hadiprayitno, Gito; Handayani, Baiq Sri
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.10595

Abstract

Karang Sidemen Village is an area endowed with rich natural resources that can contribute to the sustainability of the local economy. One form of resource utilization that remains practiced by the community is the traditional use of medicinal plants, commonly referred to as ethnobotany, which has been transmitted across generations. Nevertheless, the continuity of this ethnobotanical knowledge is increasingly threatened due to the absence of systematic scientific documentation. Beyond its role in maintaining public health, ethnobotany also holds significant potential as a contextual learning resource in senior high school biology, particularly in biodiversity-related topics grounded in local wisdom. Consequently, efforts to preserve and incorporate this knowledge into the educational process are essential. This study was conducted to identify the types of medicinal plants utilized by the residents of Karang Sidemen Village and to transform the findings into biology teaching materials. A descriptive qualitative approach was applied, with data gathered through direct field observations and semi-structured interviews. The collected data were subsequently developed into instructional materials using the ADDIE model, limited to the stages of analysis, design, and development. The findings indicated that the community utilizes 45 medicinal plant species belonging to 19 different families. Various plant parts, including rhizomes, leaves, flowers, fruits, and seeds, are employed and processed using methods such as boiling, pounding, grating, and squeezing. These medicinal preparations are administered in multiple ways, including drinking, topical application, attachment, and dripping. The research output was a booklet designed as a biology learning medium, which underwent expert validation and was deemed appropriate for instructional use.

Page 237 of 252 | Total Record : 2520

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