Department of Biology: Recent submissions
Now showing items 1-20 of 1174
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Tingkat Kepekaan Staphylococcus sp. Isolat Lalat Rumah (Musca domestica L.) Sekitar Rumah Sakit terhadap Beberapa Jenis Antibiotik
(Universitas Sumatera Utara, 2025)Houseflies (Musca domestica L.) are vector that carry disease-causing agents microorganisms from one environment to the others. The presence of houseflies at the hospital environment is likely to carry pathogenic bacteria ... -
Kemampuan Bakteri Endofit Tumbuhan Mangrove Avicennia marina dalam Menghambat Serangan Penyakit Layu Fusarium pada Tanaman Cabai
(Universitas Sumatera Utara, 2025)Mangroves are known to have special abilities to adapt and grow in extreme environmental conditions. Mangroves have been reported to harbor endophytic bacteria that have potential as biological control agents. Additionally, ... -
Kajian Pemberian Limbah Cair Pabrik Kelapa Sawit pada Areal Tanaman Buah Naga terhadap Keanekaragaman Makrofauna Tanah
(Universitas Sumatera Utara, 2025)The application of palm oil mill effluent (POME) on dragon fruit plant areas as fertilizer with variations in the application time will affect the presence and diversity of soil macrofauna, which in turn can reflect the ... -
Potensi Enterobacter Sp. LB04, Bacillus Cereus LB13, dan Pseudomonas Sp. LB14 Sebagai Agen Biofungisida Cendawan Penyebab Kerusakan Buah Tomat
(Universitas Sumatera Utara, 2024)Postharvest fruit rot in tomatoes due to pathogenic field fungi are estimated to cause between 25 and 42% economic losses of total production globally. The primary utilization of synthetic fungicides to control postharvest ... -
Gambaran Histologi Pankreas Tikus (Rattus norvegicus) yang Diinduksi 7,12-Dimetilbenz-[a] Antrasena (DMBA) Dengan Pemberian Ekstrak Etanol Kulit Durian (Durio zibethinus Murr.)
(Universitas Sumatera Utara, 2025)Durian (Durio zibethinus Murr.) contains secondary metabolite compound, flavonoids metabolite compound has a role as an antioxidant. Flavonoid compounds are able to capture and neutralize free radicals so they can repair ... -
Studi Populasi Ikan Bilih (Mystacoleucus padangensis Bleeker, 1852) di Perairan Danau Toba, Sumatera Utara
(Universitas Sumatera Utara, 2025)Lake Toba has considerable fishery resources with various types of fishes utilized by the community, one of them is bilih fish. Bilih fish (Mystacoleucus padangensis) is an endemic fish of Lake Singkarak which was introduced ... -
Gambaran Histologi Testis Mencit (Mus musculus L.) yang Terpapar Asap Rokok dengan Pemberian Ekstrak Daun Sirih Cina (Peperomia pellucida L.)
(Universitas Sumatera Utara, 2025)Chinese betel leaf extract has the potential to omit the free radicals due to its antioxidant activity. The aim of this study was to determine the efficacy of Chinese betel leaf extract on the morphology and histology of ... -
Jenis dan Keanekaragaman Aves di Kampus Universitas Sumatera Utara, Kota Medan, Sumatera Utara
(Universitas Sumatera Utara, 2024)University of North Sumatera as a strategic place to investigate the biodiversity of flora and fauna as a source if germplasm of life in the world of education. The University of North Sumatera as a green campus is considered ... -
Tingkat Penyembuhan Luka Bakar dengan Penggunaan Salep Propolis Lebah (Trigona Spp.) terhadap Epidermis Kulit Hewan Uji Mencit (Mus Musculus L.) Jantan
(Universitas Sumatera Utara, 2024)Stingless bee propolis (Trigona spp.) contains flavonoid, tannin, and saponin compounds that can potentially be antifungal, antimicrobial, and anti-inflammatory. This study aimed to analyse the effect of the bee propolis ... -
Aktivitas Harian Siamang (Symphalangus syndactylus Raffles) di Medan Zoo, Simalingkar Sumatera Utara
(Universitas Sumatera Utara, 2024)Siamang (Symphalangus syndactylus) is one of the primates of the Hylobatidae family that is endemic to the island of Sumatra. The difference in natural habitat conditions with artificial habitats will give an impact on the ... -
Jenis - Jenis Tumbuhan Sumber Polen dan Analisis Faktor Lingkungan terhadap Aktivitas Terbang Heterotrigona itama (Cockerell, 1918) di Desa Bongguron, Kabupaten Simalungun
(Universitas Sumatera Utara, 2024)Heterotrigona itama is one of the bees that is widely found in tropical areas such as Indonesia. These bees do not have stingers and live in colonies. H. itama can produce honey, propolis, bee bread and also play a role ... -
Potensi Khamir Endofit Buah Markisa (Passiflora Edulis) dan Asam Organik yang Dihasilkan dalam Menghambat Aspergillus Flavus Toksigen
(Universitas Sumatera Utara, 2024)Passion fruit endophytic yeasts live mutualistically in plant tissues without harming the host plant. This study aims to enumerate the population of passion fruit endophytic yeasts and their ability to produce organic acids ... -
Pengaruh Pemberian Trichoderma Harzianum dan Bakteri Penstimulan Pertumbuhan pada Tanaman Tomat (Solanum Lycopersicum L.) Terinfeksi Meloidogyne Hapla
(Universitas Sumatera Utara, 2024)Pathogenic infections caused by root knot nematodes (Meloidogyne hapla) are one of the obstacles in tomato cultivation. Therefore, a biocontrol agent in the form of a nematophagus fungus is needed and the combination of ... -
Potensi Khamir Endofit Buah Markisa (Passiflora Edulis) Penghasil Asam Indol Asetat Dan Pelarut Fosfat
(Universitas Sumatera Utara, 2024)Endophytic yeast is a unicellular fungus whose their life cycle in tissues such as intercellular spaces of plants and does not cause damage to its host. Their ability in secreting of phytohormone and dissolving of phospates ... -
Studi Etnoprimatologi Kukang (Nycticebus Coucang) di Desa Kuta Male Kecamatan Kutambaru Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2025)The misuse of slow lorises, such as their use as mystical tools or as pets, is particularly prevalent in Kuta Male Village, Karo Regency, North Sumatra. Therefore, it is necessary to conduct research regarding the perspectives ... -
Pengaruh Faktor Fisik Lingkungan terhadap Aktivitas Harian Trigona spp. Selama Musim Penghujan di Taman FMIPA Universitas Sumatera Utara
(Universitas Sumatera Utara, 2024)Bee Trigona spp. is a type of honey producing bee that does not have a sting (stingless bee). This research aims to analyze bee activity Trigona spp. in the FMIPA park during the rainy season and potential food sources ... -
Identifikasi Mikroplastik pada Sistem Pencernaan Burung Kuntul Kecil (Egretta garzetta) di Desa Tanjung Rejo Kecamatan Percut Sei Tuan
(Universitas Sumatera Utara, 2024)Microplastics originate from the degradation of plastic waste with a size of <5 mm. The presence of microplastics in water can inadvertently be ingested by organisms foraging on the surrounding water areas, such as water ... -
Aktivitas Antagonis Hendersonia sp. dan Aspergillus sp. dalam Menghambat Pertumbuhan Ganoderma boninense pada Kelapa Sawit (Elaeis guineensis)
(Universitas Sumatera Utara, 2024)Ganoderma disease is very important to be handled seriously. There are many efforts have been made to quell ganoderma disease, including utilization of biological control agents that are antagonistic to Ganoderma boninense ... -
Gambaran Histologi Kulit Mencit (Mus Musculus L.) Jantan yang Diobati Salep Propolis Lebah (Trigona Spp.) Setelah Diinduksi Luka Bakar
(Universitas Sumatera Utara, 2024)Propolis contains of secondary metabolite compounds such as flavonoids, tannins and saponins that act as anti-inflammatory, antimicrobial, antiviral, antibacterial and play a role of accelerating the wound healing process. ... -
Hubungan Umur dengan Berat Feses Gajah Sumatera (Elephas Maximus Sumatranus) di Kawasan Taman Nasional Gunung Leuser Resort Tangkahan, Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2025)This research aims to explain the relationship between age and feces weight of Sumatran elephants (Elephas maximus sumatranus) in the Gunung Leuser National Park Tangkahan (GLNP) Resort, Langkat, North Sumatra. ...