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Reza Dino Mahardika
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Bioma : Jurnal Biologi Indonesia
Published by Universitas Negeri Jakarta
ISSN : 01263552     EISSN : 25809032     DOI : https://doi.org/10.21009/bioma.v21i2
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Bioma is a national peer-reviewed and open access journal that publishes significant and important research from all area of biosciences fields such as biodiversity, biosystematics, ecology, physiology, behavior, genetics and biotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ecology, Evolution, Behavior and Systematics
Articles 144 Documents
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Leaf area and stomatal density of Rhizophora mucronata Poir. under high and low light environment of Nature Tourism Park Angke-Kapuk, Jakarta, Indonesia Wibisono, Bagus Tito; Tri Wahyuni; Murniati Simanjuntak; Abizar; Supriyatin
Bioma Vol. 20 No. 2 (2024): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v20i2.49339

Abstract

Each type of mangrove has specific stomatal characteristics, one of which is stomatal density. This stomatal density is directly proportional to the rate of evaporation, transpiration, and photosynthesis which is a form of mangrove adaptation to its environment. One of the external factors affecting stomatal density is light intensity which can vary due to canopy cover. This study aims to compare the stomatal density of Rhizophora mucronata Poir. in the Angke-Kapuk area, Jakarta, Indonesia. The location is a mangrove conservation area that has experienced a lot of environmental pressure, especially due to population growth and land conversion into settlements. Descriptive methods was used with transect sampling techniques at locations that represent very open and very closed canopies determined by purposive sampling. Stomatal sampling was carried out by applying a transparent nail polish on the lower surface of the leaf and then covering it with tape. The tape was observed using a microscope, and showed that Rhizophora mucronata Poir. has a low stomatal density. The results of the parametric independent sample t-test showed that the stomatal density of Rhizophora mucronata was not significantly different between very open and very closed canopy cover.
In Silico Study of the potency of Drynaria rigidula (Sw.) Bedd. (Polypodiaceae) compounds in breast cancer therapy targeting AKT1 protein pathways Ma'arif, Naufal; Sefti Adelia; Alifia Dwinanti Hakamashe; Fadila Nur’anfa Putri; Nailul Rahmi Aulya; Supriyatin
Bioma Vol. 20 No. 2 (2024): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v20i2.49340

Abstract

Breast cancer is the second most prevalent cancer globally. One of the key pathways involved in breast cancer is the PI3K/Akt mechanism. A natural compound with potential that has not been extensively studied is Drynaria rigidula (Sw.) Bedd., a Polypodiaceous fern native to Indonesia and is commonly used in traditional medicine. This study aims to explore the potential of Drynaria rigidula as an anti-breast cancer agent. The method used in silico analysis by collecting data from several web servers such as SwissADME (https://www.swissadme.ch/) with the parameters Lipinski’s rule of five, Veber, Egan, and Way2Drug for biological activity. The protein used in this study is AKT1 (PDB ID: 6HHF), obtained from the RCSB database. Molecular docking analysis was conducted using PyRx software with visualization performed in Biovia Discovery Studio. The results showed that several compounds, such as 3,4-dihydroxybenzoic acid, fern-9(11) ene, Stigmasterol, dan Campesterol, had RMSD values < 3.0 Å and binding affinities of -9.4, -9.2, -7.6, and -7.6 respectively. These results were compared with the control ligand AZD5363 and doxorubicin, which had a binding affinity from each other are -8.3 and -7.4. Therefore, the docking results indicate that compounds from Drynaria rigidula are predicted to have potential as anti-cancer agents.
Vegetation analysis in Cipayung City Forest, East Jakarta may reveal the difficulty of natural reproduction based on age pyramid Vivit Nurholifah; Handayani
Bioma Vol. 20 No. 2 (2024): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v20i2.49520

Abstract

Urban forest is an important urban feature with various services for human and non-human urban populations. We surveyed three age-size groupings in Cipayung City Forest in East Jakarta using nested quadrats. This urban forest harbours 7 species of sapling, pole and tree. As the highest number of species is in tree grouping, lower in pole, lowest in sapling; in the form of upside-down/constrictive age pyramid, plant species in Cipayung City Forest may need management plant replanting to maintain its biodiversity. The highest IV is Eucalyptus globulus, which may not be able to reproduce naturally in Cipayung. The highest IV in pole grouping is C. inophyllum with a very healthy population in every age-size grouping. The highest IV in sapling grouping is C. fruticosa, an ornamental species.
Liver histopathology of baung fish, Hemibagrus nemurus (Valenciennes, 1840) and the level of Pb in Siak River, Pekanbaru, Riau, Sumatra Hutabarat, Onni Yesika; Yusfiati
Bioma Vol. 20 No. 2 (2024): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v20i2.49655

Abstract

The high levels of Pb in the water will affect the structure of fish liver organs. This study aims to determine changes in the macroscopic and microscopic structure of the liver organ of baung fish (Hemibagrus nemurus), as well as Pb levels in Siak River. Fish and river water samples were taken from Lima Puluh and Rumbai Pesisir Subdistrict. Histological preparation using paraffin method and HE stain. Pb levels using the Atomic Absorption Spectrophotometry (AAS) method. The macroscopic structure of the liver in Location 1 was yellowish red and Location 2 was brownish red. The average percentage of liver tissue damage in Location 1 was parenchymal degeneration (1.68%), hydropic degeneration (1.46%), fatty degeneration (30.77%), and necrosis (39.24%). Location 2 was parenchymal degeneration (1.20%), hydropic degeneration (1.35%), fatty degeneration (16%), and necrosis (21.70%). Fatty degeneration and necrosis damage are medium, and other damage is slight. The Pb level of Siak River in Pekanbaru City in 2024 was 0.113 mg/L (Location 1) and 0.072 mg/L (Location 2). Pb levels in Siak River have exceeded the standard limit of Pb in waters. High levels of Pb in the Siak River can damage the structure of fish liver tissue.
Identification and characterization of bacteria from feces and river in East Bekasi using biochemical test Ilsan, Noor Andryan; Maulin Inggraini; Liendrie Patria Elsa; Sayyid Daffa Alfath
Bioma Vol. 21 No. 1 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i1.49141

Abstract

Identification and characterization of bacteria are the two main detection in determining the species level of pathogenicity of a bacteria. This study aims to isolate bacteria from normal person faeces, liquid faeces, and some sourced from river water which is still used by local communities for bathing, swimming and fishing activities, the results of which are consumed. Water contaminated with microorganisms such as bacteria is most commonly caused by contamination from pollution, industrial waste, even animal and human faeces. The media used was selective differential Salmonella Shigella Agar (SSA) media. Colonies that grown were then characterized by testing their biochemical activity. The results of the biochemical tests were compared with Bergey's Manual of Determinative Bacteriology. From seven samples for each location, Salmonella sp. was identified from J. Kh Abu Bakar river, and E. coli was identified from Bumi Palapa river. Both of these species were categorized as human pathogens. The rest of samples were contained the opportunistic bacteria, including Enterobacter sp. and Serratia sp. This study concluded that two from seven samples location were high risk for human health.This identification can help to determine the pathogens that cause various diseases with a large impact on society.
Invertebrate diversity in the intertidal zone of Lombang beaches, Sumenep, Madura according to area utilization Iman, Vikry Nurul Iman; Lise Chamisijatin; Nurul Mahmudati
Bioma Vol. 21 No. 1 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i1.49823

Abstract

Pantai Lombang had experienced many human-induced environmental pressure, presently from tourist activities, which may lower the coastal biotic biodiversity, an important aspect for the livelihood of local inhabitants. Some groups of animals may directly be influenced by the activities, especially some non motile marine invertebrates which are prone to recreational activities and/or tourist accidental picking.  The purpose of this study is to find the group of invertebrates in the intertidal zone and describe the diversity of invertebrates in the intertidal zone in Lombang Beach, Sumenep Regency. The research method uses belt transect at three differing stations: the tourist area, fishpond area and a least utilized area. The result showed that the invertebrates in the least utilized area are higher in diversity and evenness index compared to two other areas. The least utilized area also inhabited with more species compared to two other area. This condition may relate to the higher DO in the area, compared to two other area.  This result may be important in the management of biodiversity on utilized beaches area in Indonesia.
Reproducibility of antibacterial effects of ethanol extracts from Piper crocatum Ruiz & Pav., and Piper betle L. (Piperaceae), against common acne, Propionibacterium acnes (Gilchrist, 1900) Douglas & Gunter, 1946 (Propionibacteriaceae) anindita, reza; Fatmawati, Mita; Inggraini, Maulin; Intan Kurnia Putri; Maya Uzia Beandrade
Bioma Vol. 21 No. 1 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i1.50131

Abstract

Red and green betel leaf plants are useful as medicine but need to be tested for antibacterial ability to be used as raw materials for making anti-acne serum. This study aims to determine the antibacterial effect of red and green betel leaves on the sensitivity response of Propionibacterium acnes bacteria. This experimental study used samples of red and green betel leaves with procedures including sample preparation, maceration, qualitative phytochemical screening, and testing of antibacterial compounds in ethanol extracts of 70%, 80%, 90% and 100% samples using the Kirby Baeur method. Positive control was clindamycin 30 µg antibiotic and negative control was sterile distilled water. The yield of thick extracts of red and green betel leaves was 13.5% and 15%. The administration of 70%, 80%, 90%, and 100% thick extract of red betel leaves was able to inhibit Propionibacterium acnes with inhibition zone diameters of 16 mm, 18 mm, 18.5 mm, and 19 mm while green betel was 18 mm, 18 mm, 21 mm, 23 mm. The administration of thick extracts of red and green betel leaves is effective in inhibiting the growth of P. acnes and has the potential to be used as raw material for anti-acne serum formulations.
Checklist of herpetofauna in wetland ecosystems, Muara Angke Wildlife Reserve, Indonesia Nasihah, Fania Dewi; Mohamad Isnin Noer; Yusuf Muhammad
Bioma Vol. 21 No. 1 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i1.53471

Abstract

Urbanization causes damage to the natural environment and threatens conservation areas such as Muara Angke Wildlife Reserve. Urbanization has a negative impact on species diversity, including an increase in alien species, especially herpetofauna in Muara Angke Wildlife Reserve which acts as an indicator of environmental health. This study aims to record the presence of herpetofauna using Visual Encounter Survey (VES) and Acoustic Encounter Survey (AES) methods that can show significant changes in species presence over the past six years. The results showed that, of the 28 species previously identified, only 18 species were found in the most recent study. The number or diversity of herpetofauna species recorded can be affected by anthropogenic factors, such as housing, roads, and urban temperatures. Trails unaffected by human disturbance showed higher species diversity than affected trails such as the boardwalk. Paths with relatively undisturbed natural habitats recorded the highest diversity, while other paths such as the Angke river and embankment paths decreased.
Nesting selection of hawksbill turtles in Kepulauan Seribu, Indonesia in response to sea surface temperatures Nurhaliza Putri Nabila; Mohamad Isnin Noer; Endang Tatang Hidayat; Tessalonica Christianty Andreina
Bioma Vol. 21 No. 1 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i1.54401

Abstract

Hawksbill turtles are listed as a critically endangered species due to decreasing population caused by various factors, including climate change. Sea surface temperatures have significantly contributed to the hatchling success of hawksbill turtles as poikilothermic species; thus, selecting the proper location to nest is crucial for sea turtles. The purpose of this study was to observe the nest selection of hawksbill turtle (Eretmochelys imbricata Linnaeus, 1766) in response to sea surface temperature (SST) in SPTN II, Kepulauan Seribu, Jakarta, Indonesia. SST data were extracted from AQUA-MODIS satellite imagery, while the excess green index as a proxy of canopy cover was quantified using orthomosaics captured by the DJI Mavic Pro 3 at 100 m high. The results showed that SST in the study area fluctuated between 29.02°C and 31.5°C, with the highest temperature recorded in September 2024. There was no significant correlation between SST and sites selected by hawksbill turtles based on vegetation cover features. However, the correlation trend between SST and vegetation cover features indicated the plasticity of hawksbill turtles in selecting more shaded locations as SST increases. This finding highlighted the importance of vegetation cover to mitigate the detrimental effects of rising temperatures in hawksbill turtles' nesting habitats.
Natural pest control diversity on Oryza sativa L. (Poaceae) managed in organic and conventional cultivation systems in Desa Tegal Sari, Ogan Komering Ulu Timur, South Sumatera Gilang Putra Bintang; Weri Herlin; Chandra Irsan; Oktaviani
Bioma Vol. 21 No. 2 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i2.54756

Abstract

Natural controls, such as predators and parasitoids, play a crucial role in maintaining the stability of agricultural ecosystems through biological pest control mechanisms. On the rice agriculture systems, we propose to evaluate the diversity and abundance of natural controls in organic and conventional rice cultivation systems in Tegal Sari Village, Ogan Komering Ulu Timur Regency, South Sumatra. Observations were conducted using a systematic survey method employing various types of insect traps, with organism identification carried out to the level of type. This research is expected to contribute to both academic and practical domains. The results revealed the presence of 10 arthropod species from four orders, including Araneae, with dominant species such as Pardosa pseudoannulata, Tetragnatha extensa, Tetragnatha montana, Tetragnatha sp., Tigrosa annexa, and Zygiella are always higher on the organic rice agricultural system compared to the conventional system. The diversity analysis indicated that sweep nets were more effective in capturing natural controls compared to other traps, with a Shannon-Wiener diversity index value of 2.17, suggesting moderate diversity. These findings emphasize that organic farming supports biodiversity conservation and provides a scientific foundation for the development of pest management strategies.

Page 14 of 15 | Total Record : 144

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