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Jurnal Biologi Universitas Andalas
Published by Universitas Andalas
ISSN : -     EISSN : 23032162     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
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Articles 295 Documents
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Mikroalga Divisi Bacillariophyta yang Ditemukan di Danau Aur Kabupaten Musi Rawas Harmoko Harmoko; Yuni Krisnawati
Jurnal Biologi Universitas Andalas Vol 6, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.6.1.30-35.2018

Abstract

Lake Aur has many aquatic biota as well as become one of the mainstay attractions in Musi Rawas Regency. Community activities and lack of awareness of tourists on the cleanliness and importance of maintaining the lake environment have an impact on water pollution. One of the organisms that can be used as an indicator of river water quality is microalgae. The purpose of this study is to determine the types of microalgae Bacillariophyta divisions that exist in the lake Aur, Musi Rawas.The type of research used is survey research. Bacillariophyta Division consists of two classes, 6 orders, 7 families, 8 genera and 11 species. Observed environmental factors: temperature: 290C, pH: 6.7, Brightness: 115 cm and dissolved oxygen amount of: 38 mg / L. Based on the results of research and discussion, we can conclude that: the type of microalgae division bacillariophyta were found in Lake Aur namely: Cylotella sp, Eunotia sp, Eunotia pectinalis, Fragilaria croronensis, Synedra acus, Nitzschia sp, Nitzschia acicularis, Surirella sp, Surirella elegans, Pinnularia sp and Stauroneis sp.
Upaya Penggunaan Metode Telemetri untuk Penelitian Berang-Berang Cakar Kecil (Aonyx cinereus) di Area Persawahan Mahfud Huda; Jabang Nurdin; Wilson Novarino; Hanif Fadly; Aadrean Aadrean
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.6-15.2017

Abstract

Currently, telemetry appeared as a common method to reveal home range and movement of animal. However, the telemetry method was not applied for small-clawed otter yet. We have spent efforts to use the telemetry methods from March to August 2016 in a rice field landscape in Lubuk Alung district, Padang Pariaman regency, West Sumatra. We trapped individuals of small-clawed otters (Aonyx cinereus) using leg-hold traps and box traps. We implanted radio transmitter intraperitoneally. Movement of the animal was recorded using triangulation methods. Two male individuals of small-clawed otters were captured. One individual died soon after the transmitter implantation and another individual was successfully implanted and released. However the individual were detected for 28 hours only. In this paper, we described the efforts and problems appeared from the trapping, transmitter implantation, releasing and radio tracking process.
Studi Morfometrik Hornstedtia leonurus (J.Koenig) Retz. (Zingiberaceae) dan Kerabat Dekatnya dalam Tribe Alpiniae di Sumatera Barat Titi Lestari; Nurainas Nurainas; Syamsuardi Syamsuardi
Jurnal Biologi Universitas Andalas Vol 4, No 3 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.3.%p.2015

Abstract

Hornstedtia leonurus is one species of the Hornstedtia’s genera in Alpiniae Tribe (Zingiberaceae). It has unambiguous expressed some aberrations of morphological characters in what Hornstedtia should have. On the contrary, it has with it self some characters from other genera within the tribe of Alpiniae, such as Etlingera and Amomum. The research aimed to find some distorsion on morphological characters of the H. leonurus with its close selected sisters in Alpiniae Tribe (Etlingera megalocheilos and Amomum cardamomum) and determined their were characters relationship by a morphometric study. The materials collected from West Sumatra province (50 Kota, Padang and Sijunjung regency) on September until December 2015. Morphometric analysis used PAST version 2.17c and SPSS computer programs. Morphologically, H. leonurus closely related with E. megalocheilos rather than its sister in Hornstedtia genera (H. schypifera) and A. cardamomum.Keywords: Alpiniae, H. leonurus, morphometric, relationship, Zingiberaceae.
Pengaruh Naphthalene Asam Asetat (NAA) pada Pertumbuhan Akar Pisang Raja Kinalun Secara In Vitro Rahmi Rini Dwi Putri; Suwirmen Suwirmen; Nasril Nasir
Jurnal Biologi Universitas Andalas Vol 6, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.6.1.1-5.2018

Abstract

The influence of Naphthalene Acetate Acid (NAA) on the in vitro root growth of banana Raja Kinalun was carried out from April to September 2015 in The Laboratories of Plant Physiology and Tissue Culture, Faculty of Mathematics and Natural Sciences, University of Andalas, Padang. The aim of  this study was to find the effective concentration of NAA for initiation of root. This study used a Completely Randomized Design (CRD) with four treatments and three replications. The treatments were: without NAA (control); NAA 1 ppm, NAA 2 ppm and NAA 3 ppm. The result showed that the effective doses were NAA 1 and 2 ppm for each number of roots growth.
Intensitas Serangan Semut pada Tanaman Buah Naga (Hylocereus sp.) di Kota Pariaman, Sumatera Barat Halimah Tus Sakdiah; Henny Herwina; Mairawita Mairawita
Jurnal Biologi Universitas Andalas Vol 4, No 4 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.4.242-247.2015

Abstract

A study about the intensity attact of ant in dragon fruit (Hylocereus sp.) plantation was conducted on September 2015 in Pariaman City, West Sumatera. The ants were collected by using free collection method with purposive sampling techniques. About 10% of the dragon fruit plant in the study location was observed.The result showed that theintensity attack on dragon fruit was caused by fire ant Solenopsis geminata(25%).
Karakterisasi Struktur Anatomi Kayu Pada Beberapa Genus Dalam Famili Sapindaceae Di Sumatera Barat Mega Eka Putri; Tesri Maideliza; Nurainas Nurainas
Jurnal Biologi Universitas Andalas Vol 4, No 3 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.3.%p.2015

Abstract

Anatomical structure characterization of some wood genus of Sapindaceae in West Sumatra was conducted from May to October 2015 with survey and direct observation method. Cluster analysis conducted using PAST program to determine relationship among genus investigate on present study. The woods of nine genus namely Filicium, Nephelium, Pometia, Guioa, Xerospermum, Sapindus, Harpullia, Lepisanthes and Mischocarpus were analyzed. All of i.e, character vessels, parenchyma, rays and fibre morphology were analyzed by using permanent slide based on Sass (1958) procedured. The results showed all of woods have same type of porous namely diffuse porous. Type of vessel distribution namely soliter in Xerospermum and multiple in Filicium, Nephelium, Pometia, Guioa, Sapindus, Harpullia, Lepisanthes and Mischocarpus. Xylem parenchym type namely apotracheal in Pometia and Lepisanthes and paratracheal in Filicium, Nephelium, Guioa, Xerospermum, Sapindus, Harpullia and Mischocarpus. Rays type namely uniseriate type in Nephelium, Pometia, Sapindus, Harpullia and Lepisanthes and multiseriate type in Filicium, Guioa, Xerospermum and Mischocarpus. Rays composition namely heterocellular in Filicium, Sapindus, Harpullia and Nephelium and homocellular in Mischocarpus, Lepisanthes, Pometia, Xerospermum and Guioa. Fiber size is long chategory in Nephelium genus, medium in Filicium, Xerospermum, Harpullia and Lepisanthes, and short chategory in Pometia, Sapindus, Guioa, and Mischocarpus. Cluster analysis showed up among genus present of two cluster namely uniseriate rays cluster and multiseriate rays cluster. Both the cluster genus member showed clustering tightly except Nephelium genus weakly clustering in the multiseriate cluster do to have different fiber size chategory from the other genus. The character of woods using at present study useful as additional character of morphologically data to determine of genus taxa.Keywords : anatomical structure, family Sapindaceae,  permanent slide, relationship
Bioaktivitas Antibakteri Lamun Thalassia hemprichii dan Enhalus acoroides Arief Anthonius Purnama; Eti Meirina Brahmana
Jurnal Biologi Universitas Andalas Vol 6, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.6.1.45-50.2018

Abstract

The objective of present study was to identify bioactivity of antibacterial Indonesian Seagrass Thalassia hemprichii dan Enhalus acoroides from Karang Tirta Beach, Padang City, West Sumatera. This is a preliminary research for a new alternative antibiotic from Seagrass in Indonesia. In this study the seagrass was examined by a maceration process and using the rotary evaporator to obtain viscous extract. The material for the bioactivity testing was performed upon several intended bacteria such as Escherichia coli, Stapillococcus aureus, and Bacillus subtilis. The bioactivity testing was performed by using the method of resazurin and MIC (Minimum Inhibitory Concentration), which is determined by looking at well blue-colored at the smallest concentration. The result revealed that the best antibacterial bioactivity of Thalassia hemprichii extract was a total of 62.50 μg/mL N-hexane solvent against Escherichia coli and Stapillococcus aureus bacteria. While the best antibacterial bioactivity of Enhalus acoroides extract is 15.62 μg/mL of N-hexane solvent against Stapillococcus aureus.
Komunitas Collembola pada Hutan Konservasi dan Perkebunan Sawit di Kawasan PT. Tidar Kerinci Agung (TKA), Sumatera Barat Rina Oktavianti; Jabang Nurdin; Henny Herwina
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.16-24.2017

Abstract

The research about composition and structure of Collembola community was conducted at TKA company area, west Sumatra. Collembola were collected at oil palm plantation, conservasion forest and forest edge sites (between conservation forest and plantation area) by survey method with systematic random sampling for collembolla in litter and soil. A total of four Collembola species that belonging to 2 orders, 3 families, 4 genera and 57 individuals was collected. The density of Collembola in litter at conservation forest site was higher than density of Collembola at oil palm plantation site meanwhile the density of Collembola in soil at conservation forest site was higher than density of Collembola in the soil at palm plantation site. Relative density of Isotomiella sp. in litter at oil palm plantation site (100%) was higher than relative density of Folsomides sp. at conservation forest site (5,5%) as well as in the soil. The highest diversity index of Collembola was found in litter of conservation forest (1,18). The highest similarity index was found between conservation forest and forest edge (85,71%) meanwhile the lowest similarity index was found between conservation forest and oil palm plantation (40%).
Induksi PLB Anggrek Vanda sumatrana Schltr. Liar Pada Media MS dengan Penambahan BAP dan NAA serta Ploidisasi dengan Kolkisin Hanifah - Aini; Mansyurdin - Mansyurdin; Suwirmen - Suwirmen
Jurnal Biologi Universitas Andalas Vol 4, No 4 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.4.208-215.2015

Abstract

The study about PLB induction of wild Vanda sumatrana Schltr. on MS media suplement with BAP and NAA and ploidisation by colchicine treatment was conducted from December 2014 until November 2015 at the Laboratory of Genetics and Cell Biology and Laboratory of Plant Physiology and Tissue Culture, Biology department, Faculty of Mathematic and Natural Science, Andalas University, Padang. The study aimed to 1) knowing the best concentration of 6-Benzyl amino purin (BAP) and α-Naphtalene acetic acid (NAA) for Protocorm Like Bodies (PLB)  induction from shoot tip of V. sumatrana, 2) knowing the PLB response of V. sumatrana to concentrations and soak period of colchicine and 3) find the effective concentrations and soak period of colchicine to induce tetraploid on PLB of V. sumatrana. Shoot tips from in-vitro cultured of V. sumatrana  were subcultured on Murashinge and Skoog (MS) medium supplement with 3 mg/l BAP + 0,5 mg/l NAA, 3 mg/l BAP and 1,5 mg/l BAP. PLB of diploid V. sumatrana from the best treatment were soaked in 0.05% and 0.1% colchicine for 24 and 48 hours respectively in MS liquid medium, as control were set PLB without colchicine treatment. The results showed that MS medium supplemented with 1.5 mg/l BAP was the best formula to induce PLB. The highest percentage of survival rate of PLB and percentage of survived PLB regenerated shoot was obtained from 0.05% colchicine with 24 hours soak period treatment. The effective treatment to induce tetraploid on PLB of V. sumatrana Schltr. was obtained from 0.05% colchicine solution for 24 hours soak period.
Aplikasi Pupuk Organik Cair Menggunakan Bioaktivator Mikroorganisme Indigenous HPPB Untuk Pertumbuhan Desmodium heterophyllum pada Tanah Bekas Tambang Batu Kapur PT. Semen Padang Rizqa Zidna Chairafahmi; Suwirmen Suwirmen; Zozy Aneloi Noli
Jurnal Biologi Universitas Andalas Vol 6, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.6.1.6-14.2018

Abstract

The research about application of liquid organic fertilizers with indigenous microorganism bioactivator of HPPB for growth of Desmodium heterophyllum on limestone mined land at PT. Semen Padang, had been conducted from May to August 2015 in Nursery and Reforestation, Laboratory of Plant Physiology Department of Biology, and the Laboratory of Soil Science Faculty of Agriculture, Andalas University, Padang. The research aimed to determine the effect and concentration of Liquid Organic Fertilizers (LOF) by using indigenous microorganism bioactivator originated from HPPB in limestone mined land ofPT. Semen Padang. This study used Completely Randomized Design (CRD) with five treatments and four replications. The treatments were control without LOF (A), 10% LOF (B), 20% LOF (C), 30% LOF (D) and 40% LOF (E). The results showed that 10% LOF was the best concentration to increase the number of leaves (36,44), percentage of land cover (6,71%) and fresh weight of plants (5,15g).

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