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Published by Universitas Negeri Padang

ISSN : 2614669X EISSN : 2579308X DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Bioscience ISSN 2579-308X (Electronic) ISSN: 2614-669X (Print) is peer-reviewed journal and scientific journal publish by Universitas Negeri Padang. The aim of this journal is to publish articles dedicated to all aspects of the latest outstanding developments in the field of biology. Scope of this journal is ;Environmental Biology; Genetics and Biotechnology; Biology of Function; Systematics, Structure and Development.

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Articles 133 Documents

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Morphology Characteristics of Rattan (Calamus SP.) Tourism Forest In Bariat The South Sorong Regency Irnawati Irnawati; Lona Nanlohy
Bioscience Vol 2, No 2 (2018): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Rattan grows naturally inbeaches and mountains. Ecologically, it could grow rapidly in various places especially with high humidity areas such as riverside. The research conducted to identify and discover the morphology characteristics of botanical rattans which are being used by the local communities in Bariat natural Park Forest.Theresults of this research can be used for the cultivation and conservation of rattan (calamus SP.). The methodology of research is descriptive which is conducted with field visits. The first samples were collected randoml, however, the second and third sample was collected systematically. These collection method to determine the distribution of rattan growth. Five types of rattan were found in the research area which is divided into three classifications. Two of them are classified as Calamus, the other two are Daemonorops and the last one is Korthalsia. Turning into the way of the rattan grow in Bariat, four of them grow as clumping plants while the other one is single trunk (solitary). In Bariat, the rattan has low diversity but high quantity. It is potentially to be used as a source of biodiversity which has high economy value for the local community

Changes of bird behavior in response to magnetic fields anomaly before the earthquake: a review Muhyiatul Fadilah; Riandi Riandi; Anna Permanasari; Enok Maryani
Bioscience Vol 4, No 1 (2020): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Animal behavior is a response to external environmental conditions through detection by certain senses. Changes in physical factors in the environment before the earthquake (magnetic field anomaly) also influence the expression of specific behavioral changes in birds, namely the flight activity. However, scientific explanation of changes in orientation or direction of flight before the earthquake was not yet available. This article aims to describe the mechanism of bird's biological response to changes in the magnetic field before the earthquake. This study is a literature review. The results of theoretical synthesis explain that birds use magnetic receptors and light receptors that recognize changes in the magnetic field before the earthquake followed by an increase in the amount of intracellular calcium ions. Abnormal amounts of calcium stimulate the formation of more ATP which activates the function of actin and myosin, therefore muscle cells experience a bathmotrope effect expressed in the form of changes in flight direction.

Konsentrasi Hambat Minimum Ekstrak Daun Sawo (Achras Zapota L.) Terhadap Pertumbuhan Staphylococcus Aureus Secara In Vitro Novia Yunika
Bioscience Vol 1, No 1 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Sapodilla (Achras zapota L.) is a plant commonly found on the island of Java, West Sumatra and West Nusa Tenggara. Sapodilla plant contains flavonoids, saponins and tannins. In leaf the dominant are flavonoids. The content of flavonoids in the plant tissue may act as an antioxidant and antibacterial. As an alternative natural antibacterial, sapodilla leaves should also be tested minimum inhibitory concentration effective to inhibit the bacteria Staphylococcus aureus. This study aims to determine the minimum inhibitory concentration sapodilla leaf extract (Achras zapota L.) on the growth of Staphylococcus aureus. The research was conducted from January to February 2015 in the Laboratory of Microbiology UNP. Research method is descriptive by observing turbidity levels at each test tube as well as comparison increment Optical Density (OD) before incubation and after incubation of zeroes. Sapodilla leaf extract concentration ranging from 10% - 50%, amoxilin as a positive control, and negative controls (without extract). Study results showed that the minimum inhibitory concentration of Sapodilla leaf extract on the growthbacteria present in a concentration of 50%. Keywords : Sapodilla leaf extract , Minimun Inhibitory Concentration (MIC), and Staphylococcus aureus

Ecological Preference of Soil Texture to Distribution of Mangrove Seedling Species in the Forest Mangrove Teluk Buo, Padang-Sumatera Barat irma - leilani; Hendra Lardiman; Mades Fifendy
Bioscience Vol 2, No 1 (2018): Biology
Publisher : UNIVERSITAS NEGERI PADANG

A research has been conducted to find out the ecological preferences of soil texture on seedling of mangrove species in mangrove forest of Teluk Buo, Padang of West Sumatra. The study was done from May to July 2008. Samples were taken by making 3 transect lines perpendicular to the coastline. 26 observation plot 10 x 10 m was placed continuously zigz zag left to right along the transect line. In each plot is recorded the species of seedling were found and soil texture. Soil texture analized in the lab. Biology FMIPA-UNP. The study revealed that there is an ecological freferences the soil texture to the distribution of seeding of mangrove species. The seedling of Rhizophora apiculata, Ceriop tagal and Sonneratia alba was collected in areas with dusty clay soil texture. The seedling of Avicennia marina was collected on sandy loam soil and sand. The seedling of Bruguiera gymnorhyza only present on the clay sandy soil.

Ethnoveterinary Pharmacology: Knowledge Identification of Sukarame Society, Carita, Pandeglang, Banten Rizhal Hendi Ristanto; Lia Junita Harahap; Elsa Lisanti
Bioscience Vol 3, No 2 (2019): Biology
Publisher : UNIVERSITAS NEGERI PADANG

The use of chemical medicine in livestock soared. The price of expensive chemical medicine does not discourage people from turning to herbal medicines. The purpose of this study is to determine the level of public knowledge of ethnoveterinary pharmacology and diversity of herbal medicines in the village of Sukarame. This research is quantitative descriptive. Data was collected through observation, semi-structured interviews and identification. The sample in this study was the people in Sukarame village and the types of herbal medicines in Sukarame village. Data from the community was obtained through interviews and observations with the Purposive Sampling technique and data on the type of ethnoverinary obtained from identification. The results showed that public knowledge about ethnoveterinary pharmacology obtained an average score of 55%. The informants who provided data were men at 71% of the total informants. The types of herbal medicines used by the public are Zingiber officinale, Curcuma domestica, Physalis angulata, Piper betle.

PERBANDINGAN NILAI RERATA LED METODE WESTERGREEN MENGGUNAKAN DARAH EDTA DAN NaCl 0,86 % DENGAN PERBANDINGAN PENGENCERAN 4 : 0,5 DAN 4 : 1 PADA PASIEN TERSUSPEK TB PARU Farah Diba Setiana; Heru Purwita
Bioscience Vol 2, No 1 (2018): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Pemeriksaan Laju Endap Darah adalah pemeriksaan yang dilakukan untuk menentukan kecepatan pengendapan eritrosit dalam suatu tabung yang diletakkan dalam posisi tegak lurus yang dinyatakan dalam satuan mm/jam. Tujuan pemeriksaan ini untuk mengetahui perbandingan nilai rerata Laju Endap Darah (LED) metode Westergren dengan darah EDTA yang di tambah NaCl 0,86% perbandingan 4 : 0,5 dan 4 : 1 pada pasien tersuspec TB paru. Metode yang digunakan adalah metode Westergren. Dalam penelitian ini menggunakan 2 macam perbandingan pengenceran darah EDTA dan NaCl 0,86% yaitu perbandingan 4 : 0,5 dan 4 : 1 Penelitian ini telah dilakukan pada bulan November 2017 di Laboratorium klinik EMC Kota Tangerang, terhadap 32 pasien tersuspek TB paru yang melakukan pemeriksaan LED. Uji statistik yang digunakan adalah pengujian Mann Whitney. Hasil pada penelitian ini secara statistik adalah, perbandingan nilai rerata LED metode Westergreen dengan perbandingan pengenceran 4 : 0,5 dan 4 : 1 pada pasien teruspek TB paru menunjukkan hasil yang berbeda bermakna dengan nilai kemaknaan p=0,004. Nilai LED pada perbandingan pengenceran 4 : 0,5 diperoleh hasil yang lebih tinggi yaitu 39,1 mm/jam dibanding nilai LED pada pengenceran 4 : 1 yaitu 25,8 mm/jam, sedangkan nilai LED normal sebesar 20 mm/jam. Tingginya nilai LED ini disebabkan karena sampel darah yang digunakan adalah sampel darah dari pasien tersuspek TB paru.

Antifungal Activity Test of Cinnamon Extract (Cinnamomun burmani) on Growth of Aspergillus flavus and Fusarium moniliforme Vivi Novrianti; Israwati Harahap; Elsie Elsie
Bioscience Vol 3, No 2 (2019): Biology
Publisher : UNIVERSITAS NEGERI PADANG

The purpose of this research is to determine the activity of cinnamon extract (Cinnamomun burmani) as an antifungal against the growth of fungi Aspergillus flavus and Fusarium moniliforme. The procedure begins with making cinnamon extract obtained from cinnamon bark using rotary distillation method. Cinnamon extract will be tested using different concentrations of 0% (control); 0,5%; 1,0%; 2,0% and 4,0% with the well diffusion method. Based of the results, the cinnamon extract has antifungal activity against the fungi with the concentration and inhibition of 1,0% and inhibition zone diameter of 27 mm in A. flavus, while the concentration and inhibition of 2,0% with a inhibition zone of 56 mm in F. moniliforme.

Identify Of Floc-Forming Bacteria In Shrimp Pond In Pangkep District Sukmawati Sukmawati
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

This research aims to identify the kinds of floc-forming bacteria in shrimp pond in Pangkep District. This study was a descriptive research. Floc-forming bacteria were isolated from the water and mud samples. According to microbial technique isolation procedure, by using Nutrient Agar (NA) as isolation medium. The result of this study showed that there were 37 isolates. And Then floculated activity was measured: The result showed the theme 5 isolates which have more than 79% of floculating activity namely, isolat 1,isolat 2, isolat 3, isolat 4, isolat 5, floculating activity: 90,34%, 90,34 %, 94,03%, 79,68%, 92,47% respectively. At can be cocluded that isolat 1. Enterococcus sp, isolat 2. Bacillus spdan isolat 3. Vagococcus sp..Keywords: Identification, floc-formingbacteria,shrimp pond

Isolation and Characterization of Lactic Acid Bacteria (Lactobacillus sp) from Tomato (Solanum lycopersicum) Resti Fevria; Indra Hartanto
Bioscience Vol 2, No 2 (2018): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Prebiotics are good coumpounds used in the growth of lactic acid bacteria (LAB) in digestion, prebiotics come from vegetables, fruits and seeds. Tomatoes are thought to be one of the natural media of bacteria because tomatoes contain various chemical compositions that are needed as a substrate for LAB. The purpose of this study is to isolate and determine the type of LAB produced microscopically. The ingredients used are tomatoes obtained from Padang Panjang market, with Merck NA media, oxoid MRSa, 0,9% NaCl, and crystal violet paint. Isolation LAB from tomatoes done in two ways, the first with plant tomato tissue directly into the NA medium and the second with fermentation tomato and then plant the tomato into the MRSa medium with streak plate methods. The isolates obtained were identified microscopically using a microscope with gram staining method. From the research that has been done, the following result are obtained : (1) Plant tomatoes tissue direcly into NA medium and gram staining, there were 1 colonies of gram positive bacteria with bacil cell form. (2). Fermentation tomatoes from the results, there were 2 colonies gram positive bacteria with bacil cell form. We can identify this colonies as Lactobacillius bulgaricus.

Morphology Character and Andrographolide Quantifications on Sambiloto ( Andrographis paniculata (Burm.F.) Nees) Retno Prihatini; Auzar Syarif; Amri Bakhtiar
Bioscience Vol 4, No 1 (2020): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/0202041107669-0-00

ABSTRACTThe Morphology character and andrographolide quantification on Sambiloto (A. Paniculata) that growth in Sawah Dangka Jorong Gaduik, Tilatang Kamang, Agam (S 00o16159.311 E100o23110.311) have been studied. The Morphology character of A. Paniculata on generative fase have been done in the field and Laboratorium of Biology Department, Andalas University. Quantification of andrographolide constituen were analysed by using High Performance Liquid Chromatography (HPLC) in Chemical of Nature Resources Laboratorium, Pharmacy Faculty, Andalas University. The result showed that Morphology character of Sambiloto ( A. Paniculata ) include parameters ie. range of height plant ( 27-45 cm) ; range of nodus numerous ( 10-14 ); range of leaf-7 size (length; width) ( 3.8-4.1 ; 0.8-1.1) cm; range of branch numerous ( 8-10), leaf dry weight rate (2.482 g ), stem dry weight rate ( 5.882 g ), and day old flowering rate ( 110 day ). The Result of quantification secondary metabolite with high economic value, namely andrographolide showed respectively with level 2.208% (vegetative) and 2.780 % (generative). Key Words : Andrographis paniculata, morpology chracter, andrographolide quantification ABSTRAKTelah dilakukan studi tentang Karakter morfologi dan kuantifikasi senyawa andrografolide pada tanaman Sambiloto (A. Paniculata) yang hidup di Sawah Dangka Jorong Gaduik, Tilatang Kamang, Agam (S 00o16159.311 E100o23110.311). Karakter morfologi A. Paniculata pada fase generative telah dilakukan di lapangan dan di Laboratorium di Jurusan Biologi Universitas Andalas. Kuantifikasi senyawa andrografolid dianalisa dengan menggunakan High Performance Liquid Chromatography (HPLC) di Laboratorium Kimia Bahan Alam, Fakultas Farmasi Universitas Andalas. Hasil menunjukkan bahwa karakter morfologi Sambiloto ( A. Paniculata ) meliputi parameter yaitu kisaran tinggi tanaman ( 27-45 cm) ; kisaran jumlah nodus ( 10-14 ); kisaran ukuran daunke-7 (panjang; lebar) ( 3,8-4,1 ; 0,8-1,1) cm; kisaran jumlah cabang ( 8-10), rata-rata berat kering daun (2,482 g ), rata-rata berat kering batang ( 5,882 g ), and rata-rata umur berbunga ( 110 day ). Hasil kuantifikasi metabolit sekunder dengan nilai ekonomi tinggi, yang dikenal sebagai senyawa andrografolid menunjukkan level 2,208% (vegetatif) dan 2,780 % (generatif). Kata kunci: Andrographis paniculata, karakter morfologi, kuantifikasi andrografolid.

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