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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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The Growth Response of Propagules Rhizophora mucronata in Soaking Coconut Water and Applying NPK Fertilizer Ratna Fitry Yenny; Zahratul Millah; Dewi Firnia; Hestina Tri Jayanti; Adi Susanto
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): 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.v23i2.6038

Abstract

Rhizophora mucronata is a mangrove plant that has the strongest root system and often chosen in mangrove forest rehabilitation. Planting Rhizophora mucronata often fails due to limited seed supply and poor seedling quality. This study aims to determine the growth response of Rhizophora mucronata propagules to coconut water immersion and NPK fertilizer. The research was conducted from February 2023 to June 2023 at the screenhouse of the Banten Agricultural Instrument Standardization Implementation Center (BPSIP) Banten. The research was arranged in a Randomized Group Design with three replications and consisted of two factors. The first factor is soaking treatment consisting of 2 levels, namely soaking without coconut water and soaking with coconut water. The second factor is the concentration of NPK fertilizer consisting of 4 levels, namely 0 g/plant, 9 g/plant, 12 g/plant, and 15 g/plant. The parameters observed were shoot emergence time (days), leaf emergence time (days), stem diameter (mm), number of roots (strands), and root length (cm). The results showed that coconut water soaking treatment gave results that significantly affected to stem diameter, number of roots and root length. The application of NPK fertilizer 9 g/plant gives results that significantly affected to shoot rupture time, leaf emergence time, number of roots, and root length.
Hypoparathyroidism: Early Detection and Diagnosis Approaches Rizqina Alya Shafa
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.6043

Abstract

Hypoparathyroidism is an endocrine disorder characterized by low or absent production of parathyroid hormone (PTH). The most common cause of hypoparathyroidism is injury to the parathyroid glands or unintentional removal during thyroid surgery. The author aims to explore further the early detection and diagnostic approaches for hypoparathyroidism. The search was conducted through the Pubmed database using the keywords "Detection AND Diagnose AND Hypoparathyroidism." A total of 183 results were obtained. However, after applying inclusion and exclusion criteria, 7 publications were used in this literature review. The diagnosis of hypoparathyroidism is established through the assessment of clinical symptoms, physical examination, and laboratory tests.
Identification Tree Damage on The Green line of The Mataram City Ruhil Faizin; Andi Chairil Ichsan; Niechi Valentino
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): 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.v23i2.6056

Abstract

Street Arya Banjar Getas – Dr. Sujono is one of the green open spaces in the form of lanes in Mataram City. Visually, trees along street Arya Banjar Getas– Dr. Sujono Mataram City experience disturbances in the growth phase caused by biotic and abiotic factors. This study aims to obtain information on the type and extent of tree damage in the Green Open Space area along street Arya Banjar Getas and Dr. Sujono in Mataram City. The method used in collecting primary data and secondary data on tree damage is by census or analyzing all trees in the two green lines of Mataram City. The number of vegetation species found on the green line is 19 with 832 individual trees. The 4 most dominant species found on the green line are Angsana (Pterocarpus indicus) with 244 individuals, Mahogany (Swietenia mahagoni) with 144 individuals, Flamboyan (Delonix regia) with 108 individuals and Canary (Canarium ovatum) with 101 individual trees. Based on the FHM (Forest Health Monitoring) book and using the parameters of tree damage values (Tree Level Index), 3 categories of damage to the green line were obtained, namely with a percentage of healthy class 91%, medium class 7%, and sick class 3%.
The Effectiveness of Feeding Maggots (Hermetia illucens) and Aurantiochytrium Microalgae Biomass on the Productivity of Sangkuriang Catfish (Clarias sp) Meitiyani Meitiyani; Andri Hutari; Dhanty Cynthia Prameswari; Putri ayu Ridhaillahi
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): 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.v23i2.6062

Abstract

Maggot or fly larva black soldier fly (Hermetically illucens) has been widely reported to be able to improve the growth performance of farmed fish because it contains high protein. Adding microalgae Aurantiochytrium sp. which contains omega-3 docosahexanoic acid (DHA) enriches the quality of fish feed. This research used a Completely Randomized Design (CRD) consisting of six treatments, each consisting of four repetitions with the percentage of maggot and microalgae. Aurantiochytrium sp. different ones. Then the ANOVA test was continued after fulfilling the requirements for normality and homogeneity of the data, then the Least Significant Difference (BNT) Follow-up Test was carried out. All parameters of absolute weight, relative weight, absolute length, relative length have value F>F table. The optimum animal feed formulation resulting from this research was obtained in P3 treatment with a composition of Corn Flour + Bran 59%, Maggot 30%, Aurantiochytrium,sp 11%. Providing variations in maggot composition black soldier fly (Hermetically shining) and micro algae Aurantiochytrium sp affects the growth of catfish (Clarias, Sp.). It is hoped that the results of this research will become fish animal feed that produces protein and omega 3 DHA content in fish as a source of quality animal protein for humans.
Remediation of Ex-Unlicensed Gold Mining Using Rice Husk Biochar: its Effect on Reducing Mercury Levels Riza Hamkary Salam; Taufik Fauzi; A. A. Ketut Sudharmawan; Mulyati; Suwardji
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): 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.v23i2.6063

Abstract

: The dangers of mercury in nature cause negative impacts on the environment and humans. The nature of mercury is bioaccumulative and toxic, and it cannot be degraded quickly but only through valence transformation. One effort that can be made to reduce the level of toxicity from mercury is to use biochar as an adsorbent agent in the soil. This article's goal is to review data regarding the use of biological charcoal (biochar) as a soil adsorbent for mercury. In order to clean up soil that has been contaminated with mercury (Hg), rice husk biochar plays a crucial function. Other than that, by using these organic materials instead of synthetic ones, soil production can be increased while environmental impact is reduced by 56%. Mercury is absorbed by biochar through a number of different mechanisms, including: (1) electrostatic bonds; (2) K+ and Na+ with Hg2+ and Hg+ ions simultaneously; (3) covalent reduction of mercury from Hg2+ to Hg+ and Hg0; (4) formation of a mineral complex (Hg2(OH)2) through precipitation of Hg2+ with carboxyl groups, such as lactones; and (5) complexation reactions on oxygen-containing functional groups such as - In comparison to soil alone, the use of biochar along with other organic elements can boost the capacity of heavy metal adsorption. With this combination, mercury levels were reduced to 12.45 ppm while soil pH increased dramatically from 0.3 to 1.33 units, near to neutral.
Regeneration of Cattleya Amazing Thailand in ½ MS Medium with The Addition of Several Concentration of PGR and Coconut Water Asnul Fitria; Zozy Aneloi Noli; Djong Hon Tjong
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): 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.v23i2.6067

Abstract

One of the Cattleya species with aesthetic and commercial value is Cattleya Amazing Thailand. An efficient protocol with a high rate of plantlet regeneration is through in vitro culture. Plantlet regeneration is affected by the addition of a Plant Growth Regulator (PGR). Auxin and cytokinin (2,4-D and BAP) combined with PGR from organic material such as coconut water can increase the growth of leave and roots in plantlet regeneration. The research aims to determine the best PGRs combination in regenerating the  Cattleya Amazing Thailand orchid in vitro. The research used the Completely Randomized Design (CRD) experimental method for five treatments. The parameter are survival rate, number of leave, and number of roots. Survival rate was analyzed descriptively and both of number of leave and roots were analyzed statistically. All treatments can form 100% plantlets on survival rate parameter. The treatment of 0.1 mg/L 2,4-D + 1 mg/L BAP gave significantly different results in the number of leaf (9.0) and was not significantly different in the number of root. 0.1 mg/L 2,4-D + 1 mg/L BAP is the best combination for in vitro regeneration of the Cattleya Amazing Thailand orchid. 
Effect of MgCl Treatment and High pH on the Removal of Phosphate Content in Palm Oil Mill Effluent Galang Indra jaya Jaya
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): 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.v23i2.6072

Abstract

The development trend of oil palm plantations and mills in Indonesia is very rapid. The processing of fresh fruit bunches (FFB) into crude palm oil (CPO) produces the by-product palm oil mill effluent (POME). This by-product contains very high levels of phosphate (P), BOD & COD. These elements will become contaminants and the environment. The research conducted aimed to test the best MgCl dose that can remove P in POME and determine the effect of the treatment given on BOD & COD values. The research was conducted using the struvite making method approach, the treatments tested were MgCl doses of 50 & 100 grams of MgCl per 500 ml of POME that had been maintained at pH 9 with 1N KOH solution. The results showed that the 50 gram MgCl treatment was better at removing P in the solution reaching 80% while the 100 gram MgCl treatment had a removal value of < 2%. BOD & COD values before and after treatment showed no difference, observation with SEM showed that the crystals were not formed completely which supported the very low P & N value of < 1%. The best P removal from POME was in the 50 g MgCl treatment, but the P & N content in the sediment in all treatments was still very low, and all treatments did not change the BOD & COD values, so for development, integrated waste management is needed to change the nature of the waste to meet environmental quality standards.
Anemia in Pregnancy: Cause and Effect Ananda Karunia Ramadhan; Ario Danianto; Rifana Cholidah
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.6074

Abstract

One of the most common complications associated with pregnancy is anemia. Severe anemia that occurs during pregnancy has adverse effects on both the mother and the fetus. This literature review aims to provide related information related to how anemia can occur in pregnancy, what are the risk factors and causes of anemia in pregnancy, and the impact of anemia on pregnant women and their fetuses. We searched from online databases and used review articles, research, guidelines from professional organizations, such as World Health Organization and Ministry of Health Republic of Indonesia. Result: In general, pregnant women will experience a decrease in hemoglobin concentration due to the physiological role of hemodelution during pregnancy. However, this condition will be worsened and make pregnant women fall into anemia when accompanied by other factors such as iron deficiency, folic acid deficiency, infection, non ideal BMI (Body Mass Index), and congenital blood diseases. As a result, severe anemia that occurs during pregnancy has adverse effects on both the mother and the fetus. Conclusion: It is important to understand the factors that cause anemia in pregnancy to avoid adverse effects on pregnant women and their fetuses or children.
Effect of Formaldehyde Inhalation on Leukocyte Counts and Malondialdehyde Levels in Wistar Rats (Rattus norvegicus) Muhammad Fauzan; Ima Arum Lestarini; Anak Agung Ayu Niti Wedayani
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.6087

Abstract

Formaldehyde is a chemical compound that is often found in everyday life, such as in the chemical industry to research laboratories. Formaldehyde has toxic properties that can harm humans in long term exposure. The genotoxic and cytotoxic properties of formaldehyde can cause oxidative stress. This study assesses the number of leukocytes and levels of malondialdehyde in Wistar rats induced by 40 ppm formaldehyde. This study used 12 Wistar rats taken at random and put into 2 groups, namely the control and treatment groups. The treatment group was given formaldehyde inhalation at a concentration of 40 ppm for 16 weeks. At the 16th week, rat blood was taken retroorbital to calculate the number of leukocytes and levels of malondialdehyde. The calculation results were then tested statistically using IBM SPSS Statistics 25 software. The results showed that there was no significant difference (p>0.05) between the number of leukocytes in the control group and the treatment group. This study also showed that there was a significant difference (p<0.05) between malondialdehyde levels in the control group and the treatment group. In conclusion, there was no effect of formaldehyde induction with a concentration of 40 ppm on the number of leukocytes and there was an effect of formaldehyde induction with a concentration of 40 ppm on malondialdehyde levels in Wistar rats.
Effectiveness of Cages Inducing Nasopharyngeal Dysplasia in Wistar Rats (Rattus norvegicus) Gede Rama Hardy Nugraha; Hamsu Kadriyan; Anak Agung Ayu Niti Wedayani; Eka Arie Yuliyani
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.6088

Abstract

The cage is a place used to put experimental animals in experimental studies to study the mechanism of the disease and its response to therapy. Formaldehyde as a carcinogenic compound can increase the occurrence of chronic inflammation which has the potential to increase the growth of cancer cells in experimental animals due to the stress experienced while in the cage. Therefore, the purpose of this study was to compare the effectiveness of large and small cages induced by formaldehyde 30 ppm against nasopharyngeal dysplasia in Wistar rats. This research is an experimental study with a true experimental design with the type of post-test only control group design. This study used 12 male Wistar rats (Rattus norvegicus) which were divided into two groups, namely the group of Wistar rats which were placed in large cages measuring (30 x 24 x 11.5) cm3 of 6 individuals, and in small cages (27 .5 x 21.5 x 9) cm3 of 6 individuals induced by 30 ppm formaldehyde with a span of 6 hours per day for 16 weeks. The rats were terminated and retro-orbital blood samples were taken to measure MDA levels and nasopharyngeal tissue to assess the degree of dysplasia. The results of this study showed that there was a statistically significant difference (p <0.05) between the degrees of nasopharyngeal dysplasia (p=0.003) and MDA levels (p=0.003) in Wistar rats in small cages and large cages. In this study the effectiveness of small cages was greater than large cages in causing dysplasia in the nasopharyngeal tissue of Wistar rats.

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