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INDONESIA
Jurnal Biologi Universitas Andalas
Published by Universitas Andalas
ISSN : -     EISSN : 23032162     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 261 Documents
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Studi Morfometrik Daun Macaranga Thou. di Hutan Pendidikan dan Penelitian Biologi (HPPB) Agung Putra Utama; - Syamsuardi; Ardinis Arbain
Jurnal Biologi Universitas Andalas Vol 1, No 1 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.1.%p.2012

Abstract

The morphometric study of Macaranga Thou. (Euphorbiaceae) leaf was carried out from February to June 2012 at The Biological Education and Research Forest (HPPB), Herbarium ANDA and Plant Taxonomy Laboratory of Biology Department, Faculty of Mathematics and Natural Sciences Andalas University, Padang. The survey method was used in this research, the observation and direct collection were performed in the field. The samples were identified based on vegetative characters. The data of the leaf measurements were analyzed by PAST ver. 2.10 programs. It was found six species of Macaranga (M. depressa, M. gigantea, M. hypoleuca, M. javanica, M. tanarius, and M. triloba) and there were identified differentian of characters for each species of Macaranga. The lobes, margo, ratio and types of leaf nervatio used to differentiation. Identification keys based on leaf character could be used to identify Macaranga species. Numerically, species in Macaranga genus could be classified.Keywords: character, Macaranga, morphometric, leaf, HPPB
Multiplikasi Tunas Tetrastigma rafflesiae Miq. pada Media Tanam Murashige-Skoog dengan Penambahan 6-Benzylaminopurine dan 1-Naphtaleneacetic Acid secara In Vitro Ridha Permata Sari; - Suwirmen; M. Idris
Jurnal Biologi Universitas Andalas Vol 2, No 4 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.4.%p.2013

Abstract

The study about in vitro shoot multiplication of Tetrastigma rafflesiae miq. on murashige-skoog media with addition of 6-Benzylaminopurine and 1-Naphtaleneacetic Acid had purpose to determine physiological responses of Tetrastigma rafflesiae nodes with addition of 6-Benzylaminopurine (BAP) and 1-Naphtaleneacetic Acid (NAA) in several concentrations on shoot multiplication stages. This experiment used randomised complete design in 11 treatments and three replications. The treatment were the addition of BAP (1.0-5.0 mg/l) and its combination with NAA (0.1 mg/l) on MS medium. The results showed that nodus successfully producing shoot and callus. The addition of BAP was more effective than its combination with NAA in shoot multiplication. MS medium with addition of 2.0-4.0 mg / l BAP showed a better media for shoot multiplication (2.3-2.7 shoot each explant). Generally, MS media with combination of BAP and NAA produced a higher shoot although it did not significantly differed with BAP treatments. The result indicated that addition of BAP in in vitro medias have a high possibility of success for shoot multiplications in Rafflesia’s host plant conservation. Keywords: 1-Naphtaleneacetic Acid, 6-Benzylaminopurine, Murashige-Skoog media, Shoot multiplication.
Variasi Morfometrik Kodok Duttaphrynus melanostictus (Schneider, 1799) (Anura: Bufonidae) di Sumatera Barat yang Dipisahkan oleh Bukit Barisan Ravelino Nesty; Djong Hon Tjong; Henny Herwina
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

The research on morphometric variations of toads Duttaphrynus melanostictus (Schneider, 1799) (Anura: Bufonidae) in West Sumatera those separated geographically by Barisan Mountain was conducted from July to September 2012 with 4 sampling areas (Surantih, Padang, Suliki and Sijunjung). Survey and direct collection methods were used in this study. Morphometric characters measurement was conducted at Animal Taxonomy Laboratory of Biology Department, Faculty of Sciences, Andalas University. The purpose of this study was to determine the morphometric variation in population of D. melanostictus. The results showed that morphometric differentiation between western and eastern population of D. melanostictus in both within males and females. This finding might support that Barisan Mountain has isolated the populations.Keywords: morphometrics, variation, Duttaphrynus melanostictus, West Sumatra
Induksi Perakaran Tunas Tetrastigma rafflesiae Miq. Pada Media Murashige-Skoog Dengan Penambahan Beberapa Konsentrasi Indole-3-Butyric Acid (IBA) secara In Vitro Erni Febriyanti; - Suwirmen; M. Idris
Jurnal Biologi Universitas Andalas Vol 2, No 3 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.3.%p.2013

Abstract

An experiment on in vitro root induction of Tetrastigma rafflesiae Miq. on Murashige-Skoog (MS) medium supplemented with several concentrations of Indole-3-Butyric Acid (IBA) had been done from February to April 2013. The aims of this experiment was to determine physiological responses of T. rafflesiae’s shoot to the IBA on half strength media of MS for root induction stages. The experiment used a completely randomized design in seven treatments and four replications. The treatment was the addition of IBA in several concentration (i.e. 0.0; 0.5; 1.0; 1.5; 2.0; 2.5 and 3.0 mg/l). The results showed 0.5 mg/l supplemented IBA was more effective and efficient in root induction of shoot then other concentrations. It influenced the average number of roots (12.5 root/plantlet), the average length of root (4.98 cm) and the morphological of plantlets. The result indicated that plantlet of T. rafflesiae generated in in vitro had a higher possibility of artificial culture and prospective for future conservation of Rafflesia.Keywords : Tetrastigma rafflesiae Miq., root induction, Indole-3-Butyric-acid.
Komunitas Anura (Amphibia) pada Tiga Tipe Habitat Perairan di Kawasan Hutan Harapan Jambi Kharisma Putra; - Rizaldi; Djong Hon Tjong
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

Abstract

A study on Anuran’s community (Amphibia) living in three types of wetland habitats ( i.e: rivers, lakes, and swamp forest) at Harapan Rainforest Jambi was conducted from October 2011 to January 2012 by using Encounter Visual Survey along six belt transects. This study found 115 individuals of Anura’s, which belong to 14 species, eight genera, and three families. Density of each species was different between the three wetland habitats. The highest density in the rivers was Limnonectes paramacrodon (6.66 ind/ha), in the lakes was Occydozyga sumatrana (16.87 ind/ha), and in the swamp forest was Limnonectes paramacrodon (5 ind/ha). Diversity index of Shannon Wiener indicated that species diversity was different between lakes, rivers, and swamp forest (rivers: 1.227, lakes: 1.594, and swamp forest: 1.154). The highest similarity index was found between rivers and lakes (42.86%), and the lowest between swamp forest and lakes (16.67%). Distribution patterns of most Anuran’s species based on Quadrat Variance Analysis were clumped.Keywords: anura, community structure, distribution pattern, wetland habitat
Variasi Kefalometri pada Beberapa Suku di Sumatera Barat Rizia Irsa; - Syaifullah; Djong Hon Tjong
Jurnal Biologi Universitas Andalas Vol 2, No 2 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.2.%p.2013

Abstract

A study about cephalometry variations of three ethnic groups living in West Sumatra was conducted from May until August 2012. This study used survey method and purposive sampling technique. The measurements of cephalometry were taken from total of 150 individu samples with frontal photos from head-face. The result showed significant variations on head length, head width, upper facial height, bizygomatic breadth, eyes width, distance of endocathion, nose length, nose width, chin height, minimum frontal height and distance of stomion to menton. Based on statistic analysis, Nias, Minang and Mentawai ethnics showed different cephalic, facial, frontoparietal and nasalis type. Phenogram by UPGMA of three ethnic groups showed close relationship between Nias and Mentawai.Keywords : variation, cephalometry, ethnics, West Sumatra.
Identifikasi Koleksi Jamur dari Cangkang dan Pasir Sarang Telur Penyu Lekang (Lepidochelys olivacea L.) di Penangkaran Pariaman Selfia Anwar; Fuji Astuti Febria; Nasril Nasir
Jurnal Biologi Universitas Andalas Vol 3, No 1 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.1.%p.2014

Abstract

The district of Pariaman has a conservation site for sea turtles, including olive ridley (Lepidochelys olivacea L.). Several reports have stated that fungus infect egg of the turtles and caused the failure of hatching. However, there is no study on this site yet. The aim of this study was to identify fungus on turtle's egg, hatched and inhatched nest sand. Collection and identification were conducted from December 2012 until June 2013 in turtles’ breeding in Pariaman and Microbiology Laboratory of Biology Department of Mathematic and Natural Sience, Andalas University. Result showed that Fusarium sp. 1, Fusarium sp. 2, Fusarium sp. 3, Fusarium sp. 4, Fusarium sp. 5, Fusarium sp. 6, Fusarium sp. 7 dominated among identified fungus, other were Aspergillus sp. 1 and Trichoderma sp. 1 and than there was no fungus found on hatched egg. Keywords: Identification, Fungus, Egg shell, Nest sand, Lepidochelys olivacea L.
Isolasi Dan Karakterisasi Bakteri Termo-Proteolitik Sumber Air Panas Sungai Medang, Sungai Penuh, Jambi Dina Wahyuna; Anthoni Agustien; - Periadnadi
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

Abstract

A study on isolation and characterization of thermoproteolytic bacteria from hot springs at Sungai Medang, Sungai Penuh, Jambi was conducted from March to June 2012 using a descriptive method. Seventy thermophylic bacteria were isolated from the hot springs. A Total of 39 thermoproteolytic bacteria 39 were identified. The highest enzymatic activity (13.59 U/ml) was shown by isolate MI2.3 from a location at which the temperature was 600C. The isolate MI2.3 was characterized as an aerobic thermoalkaliphylic (optimum temperature of 500C, optimum pH of 9.0) bacterium with the ability to produce amylase but neither lipase nor cellulase.Keywords : alkaliphylic, bacterium, enzymatic activity, proteolytic, thermophylic.
Jenis-jenis Capung (Odonata) di Kawasan Taman Satwa Kandi Kota Sawahlunto, Sumatera Barat Silvy Olivia Hanum; Siti Salmah; - Dahelmi
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

The study on dragonfly (Odonata) had been conducted in Kandi Wildlife Park Area, Sawahlunto City, West Sumatra. This study used descriptive method and survey in which dragonflies were collected directly by using insect net. In this study, 15 species of dragonfly were recorded, they were consist of 14 genera with four families, Gomphidae with two species and two genera, Libellulidae with 11 species and nine genera, Calopterygidae with one species and one genus and Protoneuridae with two species and two genus. Microhabitats of each species where discussed in relation to environment.Keywords: Insect, dragonflies, species, wildlife park
Pengaruh Inokulasi Gabungan Beberapa Vegetative Compatibility Group Isolat Fusarium oxysporum f.sp.cubense Pada Pisang Ambon hijau Sherli Trinitia; Nasril Nasir; - Jumjunidang; Catur Hermanto; - Riska
Jurnal Biologi Universitas Andalas Vol 2, No 4 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.4.%p.2013

Abstract

The aim of this study was to determine level of virulency of several Vegetative Compatibility Group (VCG) of Fusarium oxysporum f. sp. cubense (Foc) isolates against cv Ambon hijau. The study was conducted at the laboratory of plant diseases and screen house of Solok Tropical Fruit Research Institute from August 2012 to February 2013.The experiment was arranged in randomized block design with seven treatments and four replications, each treatment consisted of fiveplants. The treatments were the mixture of isolates FocVCG 01213/16, 0121, and 0124/5 andthe single. The results revealed that several VCG isolates of Foc grouped in race 1 and 4 inoculated in single or mixture caused the highest disease incidence with the percentage of wilt was 100%. The fastest incubation period of disease on cv Ambon hijau caused by isolate VCG 01213/16 (5.95days), followed by VCG (11.35 to 12 days), single isolate of VCG 0121 (13.15 days) and VCG 0124/5 (17.45 days). Keywords :banana, Fusarium oxysporum f. sp. cubense, Vegetative Compatibility Group, inoculation

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