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Dinia R Dwijayanti,
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Biotropika
Published by Universitas Brawijaya
ISSN : 23027282     EISSN : 25498703     DOI : 10.21776/ub.biotropika.
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Biotropika: Journal of Tropical Biology invites research articles, short communication, and reviews describing new findings/phenomena of biological sciences in tropical regions, specifically in the following subjects, but not limited to biotechnology, biodiversity, microbiology, botany, zoology, biosystematics, ecology, and environmental sciences.
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Articles 544 Documents
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Potensi Pemanfaatan Kulit Buah Kabau (Archidendron bubalinum) sebagai Antifungi Candida albicans ATCC 10231 Rizka Fitria Ningrum; Sipriyadi Sipriyadi; Euis Nursa'adah
Biotropika: Journal of Tropical Biology Vol 9, No 2 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.02.03

Abstract

Kabau (Archidendron bubalinum) merupakan tumbuhan yang termasuk famili Leguminosae berbentuk pohon dan menghasilkan biji berwarna hijau. Masyarakat Bengkulu memanfaatkan buah kabau sebagai lalapan. Bagian kulit buah tumbuhan kabau berpotensi sebagai antifungi Candida albicans karena mengandung senyawa fitokimia. C. albicans merupakan salah satu mikroorganisme patogen penyebab infeksi seperti kandidiasis, sariawan, lesi pada kulit, dan vulvovaginitis. Penelitian ini bertujuan untuk mengetahui potensi ekstrak kulit buah kabau sebagai antifungi serta mengetahui konsentrasi ekstrak yang optimal dalam menghambat pertumbuhan fungi. Ekstrak kulit buah kabau diuji pada fungi C. albicans dengan metode difusi menggunakan kertas cakram pada media Sabouraud Dextrose Agar (SDA). Ekstrak kulit buah kabau dilarutkan dengan pelarut aquades dan dimetil sulfoksida 2% pada konsentrasi ekstrak 5%, 10%, 20%, 40% dan 80%. Hasil penelitian menunjukkan konsentrasi 40% dengan pelarut aquades yang paling efektif dalam menghambat pertumbuhan fungi C. albicans dengan diameter daya hambat 4,05 mm. Dari data hasil penelitian tersebut, maka dapat disimpulkan bahwa ekstrak kulit buah kabau berpotensi sebagai antifungi C. albicans.
Buffer Zone Management Impact on Birds Assemblage in the High Nature Value Farmland (HNVf) : a study case on Meru Betiri National Park Nilasari Dewi; Agung Sih Kurnianto
Biotropika: Journal of Tropical Biology Vol 9, No 1 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.01.04

Abstract

This study aims to analyze the distribution of bird communities and the impact of vegetation on bird habitat preferences in the buffer zone. Research is carried out in agricultural areas in the Buffer zone, Rehabilitation Zone, and on the edge of the plantation. The research location was determined at 37 points: Rajekwesi (4), Sukamade (12), Bandealit (8), Wonoasri (5), Andongrejo (3), Sanenrejo (5). We applied the point count method (r = 17.5 m) in this study, where each point is at least 100-150 meters apart. In the study, 74.6% of records were birds with agricultural specialities and 71.30% of individuals on tree habitats. Birds with specialization in agriculture were found in large numbers related to the protection provided by the TNMB conservation area to bird habitat. Sukamade is the area with the highest number of records. As many as 40.10% were found in tree habitats followed by seedling (16.28%), poles (15.93%), flying over (15.76%), and sapling (11.90%)
Keanekaragaman Burung Sebagai Potensi Pengembangan Avitourism di Objek Wisata Girimanik, Wonogiri, Jawa Tengah Ade Lukman Mubarik; Aditya Aditya; Chairiza T. Mayrendra; Avandi Latrianto; Yusuf E. Prasetyo; Raka N. Sukma; Eliza N. Alifah; Tasya N. Latifah; Syela P. Kusuma; Yoshe R. Al Karim
Biotropika: Journal of Tropical Biology Vol 8, No 3 (2020)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2020.008.03.03

Abstract

Avitourism sebagai salah satu konsep ekowisata memiliki manfaat pada bidang pendidikan, lingkungan, dan ekonomi. Objek wisata Girimanik sebagai kawasan ekowisata menyimpan potensi keanekaragaman burung dengan didukung kondisi habitat yang relatif baik. Akan tetapi, eksplorasi data keanekaragaman burung belum dilakukan. Penelitian ini bertujuan untuk menganalisis keanekaragaman burung sebagai potensi untuk dijadikan kawasan avitourism di objek wisata Girimanik. Pengambilan data burung dilakukan pada tanggal 11-15 Agustus 2018 di enam jalur pengamatan objek wisata Girimanik, dengan menggunakan metode IPA (Index Point of vbAbundance). Analisis data yang digunakan adalah indeks keanekaragaman Shannon-Wienner, indeks kemelimpahan relatif, indeks kekayaan jenis, dan analisis deskriptif kuantitatif-kualitatif untuk menjelaskan potensi avitourism. Hasil penelitian ditemukan 60 spesies burung dalam 32 famili dengan tingkat keanekaragaman tinggi sebesar 3,1. Kemelimpahan burung didapatkan sebanyak 34 jenis termasuk kategori tidak umum, 22 jenis kategori sering, kategori umum sebanyak tiga jenis, dan satu jenis melimpah. Kekayaan jenis tertinggi dijumpai di jalur Air Terjun Manikmoyo. Berdasarkan potensi avitourism, sebanyak sembilan jenis burung endemik Jawa, tiga jenis terindeks daftar merah IUCN dan tiga jenis masuk Apendik II CITES, 10 jenis yang dilindungi pemerintah, lima jenis raptor, dan enam jenis burung yang memiliki bulu indah serta tiga jenis bersuara merdu. Girimanik berpotensi untuk dikembangkan sebagai kawasan avitourism.
Virtual Inhibition Analysis of Bioactive Compound Brazilin (Caesalpinia sappan L.) Toward Progesterone Receptor or Lonaprisan in Breast Cancer Proliferation Ayu Puspitaning Dewi Harnis; Nur A.H.M. Hasan; Yuni K. Janah; Chaidila A. Tsamara; Fatchiyah Fatchiyah
Biotropika: Journal of Tropical Biology Vol 8, No 2 (2020)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2020.008.02.01

Abstract

Breast cancer is one of the leading causes of death worldwide. The pathway of breast cancer in KEGG shows that the most effective pathway is through the progesterone receptor (PR). Brazilin is a bioactive compound of secang (Caesalpinia sappan L.) used to inhibit breast cancer through survivin and Bcl-2 pathway but the interaction with PR route is unknown. This research was conducted to determine the virtual interaction between brazilin and PR and its comparison with lonaprisan, so the potential of breast cancer drugs that can overcome through three targets at once with minimal side effects is expected to be known. There are five docking interactions, including the interaction of PR-progesterone, PR-brazilin, PR-brazilin-progesterone, PR-lonaprisan, and PR-lonaprisan-progesterone. Protein and ligand preparation was performed by using Discovery Studio Client 2019 and PyRx 0.8, molecular docking was performed by using Hex 8.0.0 and visualization used Discovery Studio Client 2019. Virtual interaction results shows that lonaprisan has the most stable bond (lowest binding energy), -333.8kJ/mol but when progesterone was docked afterwards the result shows the opposite. Brazilin has a more stable bond compared to lonaprisan with a difference of 2.1kJ/mol and supported by hydrophobic bonds also capable of changing the position of progesterone in binding to PR so that it is estimated that brazilin has the potential as SPRMs, an alternative breast cancer drug to replace lonaprisan. Herbal medicine with brazilin can be estimated to fight breast cancer through 3 targets at once (survivin, Bcl-2, PR).
Oral Administration of The Hypercholesterol Rat Feed Formula to Making The Animal Dyslipidemia Model on Sprague Dawley Rats Fatchiyah Fatchiyah; Eko Suyanto; Rista Nikmatu Rohmah; Lidwina Faraline Triprisila; Hazna Noor Meidinna; Dewi Ratih Tirto Sari; Iva Himmatul Aliyah
Biotropika: Journal of Tropical Biology Vol 9, No 2 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.02.08

Abstract

The aim of this study was to make animal dyslipidemia models in Sprague Dawley strains induced by a high fat goat diet formula as hypercholesterol feed for two months. The experimental animal used in this study was 30 male rats (Rattus norvegicus strain Sprague Dawley) with an age of 2-3 months with an average body weight of 150g. Animal models are divided into two groups consisting of a control group without additional diet and dyslipidemia group given food consumption goat hypercholesterolemia with high-fat diet formula orally every day for two months. Physiological characteristics of dyslipidemia SD rats had higher body weight, increased food consumption and fecal weight, and decreased water intake and urine volume than the control group. Total cholesterol, triglyceride, and LDL-cholesterol levels increased, while HDL-cholesterol levels did not change in the dyslipidemia rats group compared to the control group. The conclusion of this study indicated that the hypercholesterol diet formula with a high composition of goat fat was successfully induced the SD rats to become dyslipidemia model rat with specific hypercholerol characteristics.
Cross-Pollination Produces Arabica Coffee Beans with Higher Caffeine and Lower Fatty Acid Dian Anggria Sari; Ramadhani Eka Putra
Biotropika: Journal of Tropical Biology Vol. 9 No. 3 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.03.02

Abstract

Studies showed that cross-pollination also affect fruits and green bean coffee quantity and quality yet study on this subject in Indonesia rarely found. This study focused on assessing the pollination effect of fruit quality and beans in terms of size, weight, physical defect, and content of caffeine and fatty acid. During this study, Tetragonula laeviceps, indigenous stingless bees, were applied as a pollination agent to be compared to open pollination. The result showed that open pollination produced bigger beans (16.73ab±1.57 X 14.66a±1.48 mm) with higher caffeine (18.22%) and lower fatty acid (41,86%), while application of T. laeviceps produced slightly heavier beans (0.22 gram). Besides producing higher caffeine and lower fatty acid, cross-pollination services mainly required wild pollinators, although T. laeviceps could act as a potential replacement or for the inundation of this service.
Quality Profile of Riparian Zone and Vegetation Quality in Amprong River, Tumpang District Based on QBR index and NDVI Hamdani Dwi Prasetyo; Majida Ramadhan
Biotropika: Journal of Tropical Biology Vol. 9 No. 3 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.03.07

Abstract

Riparian zones provide ecosystem services depending on the quality of riparian vegetation and vegetation health. The role of riparian vegetation was determined by the total cover, cover structure, vegetation cover quality, and channel alteration of the riparian zone. Vegetation health was to determine the condition of the riparian zone of the Amprong river. In determining the quality of the riparian zone and the quality of the vegetation, it is done by observing the riparian zone of the Amprong river. The results of field observations were analyzed using the QBR index. Vegetation quality was also observed using the Normalized Difference Vegetation Index. The quality profile of the Amprong river riparian zone is in the medium category, while stations 4.2 and 4.3 are in a good category. The good category is obtained from the high total cover dam cover structure value. Meanwhile, the low QBR value is caused by the value of disturbance in the riparian zone in the form of agricultural activities, community settlements, garbage, land conversion to permanent buildings in the riparian zone. The size of the tree canopy at several stations has an impact on the QBR index value. Vegetation connectivity to rivers also helps in maintaining the quality of the riparian zone. Vegetation health on a scale of 0.012 to 0.371 indicates that the sampling site is in good condition. However, this condition will worsen if there is pressure from human activities. Sustainable management is needed by improving the quality of vegetation and reducing disturbance to the riparian zone.
Inventarisasi Berilustrasi Siput Laut (Gastropoda: Heterobranchia) Di Selat Sempu, Indonesia Anthon Andrimida
Biotropika: Journal of Tropical Biology Vol. 9 No. 3 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.03.03

Abstract

Kawasan Indo-Pasifik merupakan pusat keanekaragaman siput laut Heterobranchia yang paling tinggi. Meski demikian, detail dari persebaran spesies dari kelompok hewan ini masih belum banyak diketahui. Di Indonesia sendiri, kajian mengenai persebaran spesies siput laut Heterobranchia masih dititikberatkan di kawasan Indonesia Timur, sementara kajian mengenai persebarannya di wilayah Indonesia Barat masih sangat terbatas. Di Selat Sempu, keberadaan siput laut Heterobranchia masih belum banyak dikaji secara ilmiah. Sejauh ini, keberadaan hewan ini di Selat Sempu hanya diketahui melalui koleksi pribadi para fotografer bawah laut. Penelitian ini bertujuan untuk mendeskripsikan kekayaan spesies siput laut di Selat Sempu disertai dengan gambar dan anotasi, sehingga kedepannya penelitian ini dapat dijadikan sebagai bahan informasi kegiatan makrofotografi bawah air maupun sebagai perbandingan identifikasi siput laut Heterobranchia dalam penelitian selanjutnya. Sebanyak 35 survei sporadik dilaksanakan dalam kurun waktu Oktober 2017 hingga Juli 2019 pada sebelas titik penyelaman di Selat Sempu. Dalam survei ini, ditemukan 45 spesies siput laut Heterobranchia, dimana 35 spesies berasal dari ordo Nudibranchia, enam spesies dari ordo Aplysiida (Anaspidea), dua spesies dari ordo Cephalaspidea, dan dua spesies dari superordo Sacoglossa. Survei awal ini diharapkan dapat mendorong penelitian lebih lanjut mengenai siput laut Heterobranchia di perairan Selat Sempu dan sekitarnya.
Review: Regulation of Phytohormones and Environmental Stresses to Increase the Production of Plant Secondary Metabolites Selis Meriem
Biotropika: Journal of Tropical Biology Vol. 9 No. 3 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.03.08

Abstract

Secondary metabolites are synthesized by plants when subjected to abiotic and biotic stresses as a defense mechanism and play an ecologically vital role both as pollination attractants and as repellents. These compounds are not essential for the process of growth and development but provide a significant impact on human welfare in various aspects as pharmaceuticals and therapeutics, aroma and taste, biopesticides, and agrochemicals. This natural product has high economic and commercial value, so it is important to explore it along with the increasing needs of consumers and industry at a large scale. Various extensive studies were carried out to improve and increase the production and accumulation of secondary metabolites. One of the strategies adopted in this review is the role of exogenous phytohormones in triggering the production of important secondary metabolites based on their classification, namely terpenoids, phenols, and flavonoids, as well as alkaloids and nitrogen-containing compounds. Bioregulators work as elicitors to induce the production of secondary metabolites through up-regulation of specific gene expression. In some cases, the application of phytohormones combined with exposure to extreme abiotic stresses showed overexpression of secondary metabolite synthesis compared to treatment with only those subjected to phytohormone. The abiotic stress of irradiation, UV-B, temperature, drought, ultrasonic, salinity, and metal stress was discussed in this study. Oxidative conditions under environmental changes trigger the plant to produce reactive oxygen species (ROS), which induce various secondary metabolites as part of the regulation of antioxidant systems. Micropropagation of medicinal plants by the addition of exogenous growth regulators could enhance the production and accumulation of important secondary metabolites.
Neopestalotiopsis zimbabwana Isolated from Xylaria Stromata Rudy Hermawan; Rena Rifki Safitri; Muhamad Raffel Sidiq
Biotropika: Journal of Tropical Biology Vol. 9 No. 3 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.03.04

Abstract

Neopestalotiopsis is one of pestalotioid fungi. Neopestalotiopsis has versicolourous in the third cell (median cell). This genus is identified as pathogenic and endophytic fungi in the plant. Neopestalotiopsis strain X1 was isolated from Xylaria stromata assumed as endophytic fungi. The surface sterilization was conducted, then isolated into PDA (1/2 receipt of potato dextrose). The morphology was observed in a fresh PDA medium. Genomic DNA was extracted and amplified for the Large Subunit region. A phylogenetic tree was built using RAxML Black Box. The morphology showed that the five cells in a conidium were an appearance with the black color of the septate in the third cell (median cell). The appendage on the basal cell was only a single tubular appendage. The appendage on the apical was two until three tubular appendages. The phylogenetic tree showed that Neopestalotiopsis strain X1 was Neopestalotiopsis zimbabwana. The sequence was deposited into GenBank as MW422813. This study was the first report for Neopestalotiopsis species isolated from micro-mushroom (Xylaria stromata).

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