Department of Biology: Recent submissions
Now showing items 101-120 of 1204
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Isolasi Fragmen Gen PI-D2 Sebagai Gen Ketahanan Terhadap Penyakit Blas pada Padi Siporang (Oryza Sativa L.) dari Sipirok
(Universitas Sumatera Utara, 2024)Blast disease is through by the fungus Pyricularia oryzae, which is characterized by rhombus-shaped spots with pointed ends that are gray or whitish in color on the leaves of rice plants. Some rice varieties in Indonesia ... -
Studi Etnobotani Tumbuhan Obat Masyarakat Batak Toba di Kecamatan Sitiotio Kabupaten Samosir Sumatera Utara
(Universitas Sumatera Utara, 2022)Study of ethnobotany of medicinal plants in the Toba Batak community in Sitiotio District, Samosir Regancy, North Sumatera aims to determine the ultilization, perception, types of medicinal plants and the degradation of ... -
Resistensi Bakteri Gram Negatif Penyebab Diare Asal Feses Siamang (Symphalangus Syndactylus) di Sumatran Rescue Alliance (SRA) terhadap Beberapa Antibiotik
(Universitas Sumatera Utara, 2024)Diarrhea is one of the problems that can threaten the lives of gibbons (Symphalangus syndactylus) named Pebro and Kiting at SRA, especially when antibiotics are not effective in curing this disease because both gibbons ... -
Modifikasi Suhu dan Nutrisi terhadap Pertumbuhan Jamur Tiram (Pleurotus Ostreatus)
(Universitas Sumatera Utara, 2024)Oyster mushroom is a food produce rich in protein and nutrition that is accessible to produce and affordable. Mushroom cultivation commonly takes place in environment with moist humidity and cool temperature. Medan has ... -
Potensi Actinomycetes Rhizosfer Etlingera Asal Taman Hutan Raya Bukit Barisan dalam Menghambat Methicillin-Resistant Staphylococcus Aureus (MRSA)
(Universitas Sumatera Utara, 2024)Microorganism resistance to antibiotics requires effort to explore potential microorganisms as antibiotic producers, such as actinomycetes. Actinomycetes isolated from nature are expected to inhibit resistant microorganisms ... -
Pengaruh Variasi ZPT Paclobutrasol dalam Media ½ Murashige dan Skoog (Ms) dan Lama Penyimpanan terhadap Viabilitas Biji Sintetik Chrysanthemum Sp.
(Universitas Sumatera Utara, 2024)The distribution of tissue tubers such as Chrysanthemum sp. often encounters obstacles, especially in the problem of its viability, so the manufacture of synthetic seeds is a solution to overcome the problem. The study ... -
Potensi Ekstrak Daun Sirih Cina (Peperomia Pellucida L.) terhadap Histologi Organ Hati Mencit (Mus Musculus L.) yang Dipapar Asap Rokok
(Universitas Sumatera Utara, 2024)Free raldicalls produlced from cigalrette smoke caln calulse dalmalge to the liver. Liver dalmalge dule to free raldicalls caln be trealted by aldministering alntioxidalnts which coulld be foulnd in the sirih cinal plalnts. ... -
Efek Pemberian Ekstrak Etanol Biji Pinang (Areca Catechu L.) terhadap Morfologi dan Histologi Lambung Tikus (Rattus Norvegicus L.) Jantan yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2024)Areca nut is one of the traditional medicinal plants that has potency as antidiabetics. This study aims to analyze the safety of giving ethanol extract of areca catechu nut (Areca catechu L.) on the gastric morphology and ... -
Keanekaragaman Jenis Liken pada Tegakan Pohon di Kampus Universitas Sumatera Utara Medan
(Universitas Sumatera Utara, 2024)University of North Sumatera has a fairly high diversity of vegetation. The cool temperature of 23℃ and a height of 2.5 – 37.5 meters above sea level does not support many types of lichenes to live in this region. However, ... -
Isolasi dan Uji Antimikroba Bakteri Endofit Tanaman Lidah Buaya (Aloe vera (L.) Burm.f.) terhadap Beberapa Mikroba Patogen Manusia
(Universitas Sumatera Utara, 2022)Endophytic bacteria are bacteria that live inside plant tissues without causing any symptoms. Endophytic bacteria may produce bioactive compound such as antimicrobial substances. Isolation of endophytic bacteria from aloe ... -
Fluktuasi Harian Kelimpahan Plankton di Perairan Percut Sei Tuan, Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2024)Plankton is an aquatic biota that lives following currents in the waters. Plankton life is very dependent on the quality of water in these waters. Physical and chemical conditions of water that are always changing cause ... -
Kajian Populasi Ikan Kedukang (Hexanematichthys sagor) di Perairan Sungai Percut Kecamatan Percut Sei Tuan, Kabupaten Deli Serdang, Sumatera Utara
(Universitas Sumatera Utara, 2024)Kedukang fish (Hexanematichthys sagor) is one type of consumable fish that is widely caught by fishermen and the community. Catching kedukang fish in the Percut River, Deli Serdang Regency is carried out every day without ... -
Isolasi dan Uji Potensi Jamur Endofit Penghasil Enzim Lakase dari Akar Kelapa Sawit (Elaeis guineensis Jacq.)
(Universitas Sumatera Utara, 2024)Endophytic fungi from oil palm (Elaeis guineensis Jacq.) known produce degradative enzymes such as laccase. This study aimed to obtain endophytic fungi produce laccase enzymes isolated from oil palm roots continue by ... -
Distribusi dan Karakteristik Habitat Larva, serta Morfologi Nyamuk Anopheles spp. di Desa Ujung Bandar, Kecamatan Salapian, Kabupaten Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2024)Ujung Bandar Village, Salapian District, Langkat Regency has experienced changes in ecological conditions. These changes were caused by human activities. Increased risk of transmission of malaria transmitted by Anopheles ... -
Analisa Kandungan Logam Berat (As, Cd, Pb dan Hg) pada Jaringan Tubuh Udang di Sungai Batang Toru Kecamatan Batang Toru, Kabupaten Tapanuli Selatan
(Universitas Sumatera Utara, 2023)Batang Toru River is a river that is widely used for agricultural, plantation and industrial needs in the form of gold mining, oil palm plantations, and rubber plantations. As a result of these various activities, river ... -
Keanekaragaman Ikan di Perairan Pulau Poncan Gadang Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2024)Research on fish diversity was conducted in the waters of Poncan Gadang Island, Central Tapanuli Regency, North Sumatra in March 2023. The purpose of this study was to analyze fish diversity and its relationship with ... -
Uji Efektivitas Nanoherbal Daun Gagatan Harimau (Vitis gracilis Wall.) terhadap Histologi Pankreas Tikus Wistar (Rattus norvegicus L.) Jantan Model Diabetes Mellitus yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2024)Gagatan harimau leaves (Vitis gracilis Wall.) are a potential anti-diabetic plant due to their secondary metabolites, including flavonoids, phenols, and gagatan harimau leaves contain secondary metabolites, including ... -
Uji Efektivitas Nanoherbal Daun Gagatan Harimau (Vitis gracilis Wall.) terhadap Histologi Ginjal Tikus Wistar (Rattus norvegicus L.) Jantan Model Diabetes Mellitus yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2024)Vitis gracilis (gagatan harimau) contains secondary metabolites, namely flavonoids and terpenoids, which act as antioxidants and trigger improvements in the histological structure of organs with nanometre sizes. These ... -
Pengaruh Ekstrak Etanol Daun Sambung Nyawa (Gynura procumbens [lour.] Merr.) terhadap Lesi Aterosklerosis pada Tikus Putih (Rattus norvegicus l.) Jantan yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2024)Diabetes mellitus is a disease that occurs due to impairment of the insulin production and the supply in the body characterized by high glucose levels (hyperglicemia). The sambung nyawa (SB) leaf extract has bioactive ... -
Uji Efektivitas Nanoherbal Daun Gagatan Harimau (Vitis gracilis Wall.) terhadap Histologi Hati Tikus Wistar (Rattus norvegicus L.) Jantan Model Diabetes Mellitus yang Diinduksi Aloksan
(Universitas Sumatera Utara, 2024)Diabetes mellitus can damage organs and tissues in the body, especially the liver. The leaves of gagatan harimau (Vitis gracilis Wall.) contain metabolites, namely flavonoids and terpenoids, which act as antioxidants and ...