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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
Arjuna Subject : -
Articles 9 Documents
 1 
Search results for , issue "Vol 7, No 1 (2019)" : 9 Documents clear
Jaringan Sosial (Social Network) Antar Jantan Monyet Ekor Panjang (Macaca fascicularis) Di Gunung Meru, Padang, Sumatera Barat Ami Hidayat; Rizaldi Rizaldi; Jabang Nurdin
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.14-20.2019

Abstract

A study on social network based on grooming interactions among males of long-tailed macaques (Macaca fascicularis) at Gunung Meru, Padang has been conducted from August to October 2015. The dominance relationship determined by submissive interactions among 17 adult males. Submissive interactions were recorded using ad libitum observation and grooming interactions by continuous recording method. The results showed that the dominance hierarchy among males was linear (Matman linearity index: h' = 0.97). Alfa male appeared to have the highest centrality index among all the males. This study indicates that individuals attained higher dominance hierarchy tend to have higher degree of centrality.
Pengaruh Penggunaan Effective Microorganism 4 (EM4) Pada Budidaya Jamur Merang (Volvariella volvaceae) Menggunakan Media Tandan Kosong Kelapa Sawit. Andriyanto Andriyanto; Retni S Budiarti; Agus Subagyo
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.59-68.2019

Abstract

Indonesia is the biggest producer of palm oil in the world. Palm oil empty fruit bunches is the biggest waste generated by the palm oil processing industry. However, utilization of the palm oil empty bunches has been not optimal. The palm oil empty fruit bunches have potential to be developed into a medium for growing mushroom because it has a high cellulose content. However, the high content of cellulose and lignin in palm oil empty fruit bunches is difficult to decompose into organic material that need for mushroom growth. The composting processes of empty fruit bunches can be increased by using Effective Microorganism (EM4). This study aims to understanding the role of Effective Microorganism 4 (EM4) on Volvariella volvaceae cultivation processes that used Empty Fruit Bunches compost. This research was conducted by composted the empty fruit bunch with different concentration of EM-4 there are 0%, 10%, 15%, 20% and 25%. Parameters observed were number of mushrooms, weight of mushrooms and C / N ratio of compost. The results showed that EM-4 had reduce C/N ratio of empty bunch palm oil compost, C/N ratio was not affected mushroom production and EM4 was affected mushroom production, the highest production reached by concentration of 15% that had not significant with concentration of 5%, 10% and 20%. At concentration of 25% mushroom production was decreased. It is probably there are several mechanisms by EM4 microorganisms containing that affected mushrooms production. 
Karakter Morfologi dan Sitologi Bunga Pepaya Merah Delima Noflindawati Noflindawati; Aswaldi Anwar; Yusniwati Yusniwati; Agus Sutanto
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.21-26.2019

Abstract

The papaya plant has three types of flowering, male flowers, female flowers, and perfect flower (hermaphrodite). The difference in interest affects the shape of the resulting fruit. This study aimed to characterize morphology and cytology of papaya flowers. The study was conducted in Tropical Fruit  Research  Institute at Solok and Laboratory of SPT at the Biology Department of the Faculty of Mathematics and Natural Sciences, Andalas University, Padang, West Sumatra. The research material uses papaya flowers Merah Delima variety  from KP. Aripan Balitbu Troipka. The results showed the male flowers of male plants were smaller than the male flowers of the perfect plant. The difference of hermaphrodite flower of pentandria with hermaphrodite elongata flower, among others, the number of stamens, the length of the stem and the size of the ovary. Hermaphrodite pentandria has a number of stamens 5 while elongata has stamens 10
Aktivitas Antibakteri Ekstrak Tangkai dan Daun Begonia Multangula Blume. terhadap Porphyromonas Gingivalis Nadya Haqque Santosa Putri; Dewi Nurdiwiyati; Sintia Lestari; Billyardi Ramdhan; Muhammad Efendi; Novik Nurhidayat
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.51-58.2019

Abstract

Begonia multangula Blume. has acid sensation and it spread abundant on the western mountains of Java. While result of Periodontitis sufferer’s krevicular epitel investigation shows Porphyromonas gingivalis sticking portion are 5 – 20 times greater than another bacteria. Research about antibacterial activity of the stem and leaf extracts of B. multangula on P. gingivalis has been studied. This research using two methods of extraction i.e fresh extract and maseration with etanol and aquades as solvent. Volume extract tested are 10 µL and 20 µL with aquades and etanol 48% as negative control. This research using disk difution method with three replications. Incubation process during 40 hours in anaerob jar 37 ºC degree. The results showed that all of the extracts have bactericide activity toward P. gingivalis, while two negative controls has no show mentioned bactericide activity. The biggest bactericide activity owned by etanol extract of B. multangula’s stem, while the smallest bactericide activity owned by aquades extract of B. multangula’s leaf. Obstruction Power Index (Indeks Daya Hambat, IDH) of all extract inclined low.
Struktur Komunitas Alga Perifiton Sungai dalam Gua Batu Asahan di Sumpur Kudus Kabupaten Sijunjung Sumatera Barat Izmiarti Izmiarti
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.27-33.2019

Abstract

The cave ecosystem has a unique environment because it receives minimal sunlight and does not even get sunlight at all. Dark conditions in the cave will affect producers such as periphyton algae that live in rivers in caves that need sunlight for photosynthesis. This study aims to determine the periphyton community structure in the river in the Batu Asahan Cave in Sumpur Kudus, Sijunjung District, West Sumatra. This research held in August 2016. The research was carried out by survey method at 3 stations: bright, dim and dark zones. The results showed that periphyton were found as many as 22 species classified as Bacillariophycea 13 species, Cyanophyceae 5 species, Chlorophyceae and Euglenophyceae each of 2 species. Based on the number of individuals Bascillariophyceae 67.0%, Cyanophyceae 24.49%, Chlorophyceae 4.79% and Euglenophyceae 3.72%. Population density in each zone was low, ranges from 1.26 - 2.82 ind / cm2. The dominant species vary in each zone which is the highest shown by Synedra ulna (Bacillariophyceae) and Oscillatoria tenuis (Cyanophyceae). Diversity index ranging from 2.11-2.47 is not significantly different between zones, indicating the quality of clean water. The equitability index was high (E = 0.88-0.96) show the populations in the community evenly. Similarity index between zones was low (C = 25 - 56%). Fisicochemical factors of water indicate the quality of clean water supports the life of periphyton algae in the river.
Induksi Kalus Tanaman Puspa (Schima wallichii (DC.) Korth) dengan Penambahan Beberapa Konsentrasi Benzyl Amino Purin (BAP) dan 2,4-Diklorofenoksiasetat (2,4-D) Husri Meli; Zozy Aneloi Noli; Suwirmen Suwirmen
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.1-5.2019

Abstract

The research about Callus Induction of Puspa (Schima wallichii (DC.) Korth) with several concentrations addition of Benzyl Amino Purine (BAP) and 2,4-Dichlorophenoxyacetid acid  (2,4-D) had been done from October until November 2016 at Plant Physiology dan Tissue Culture Laboratory, Biology Department, Faculty of Mathematics and Natural Science, Andalas University. The aim of this researh is to get the combination of 2,4-D and BAP to induce the best callus of Schima wallichii. This research used a Completely Randomized Design Method with 10 treatments and 3 replications. The result showed that combination of 2 ppm 2,4-D + 0,75 ppm BAP was the best concentration to induce callus of Schima wallichii.
Keanekaragaman Jenis Flora Epifit Di Hutan Kota Pekanbaru, Provinsi Riau dan Kajian Kekerabatannya Nery Sofiyanti
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.34-42.2019

Abstract

The city forest of Pekanbaru, Riau Province has many host trees for epiphytic flora. This study aimed to identify the epiphytic flora on tress of forest city Pekanbaru. Samples were collected from the field using exploration method. The morphological characters were scored and analysed to construct dendrogram using NTSyst 2. A total of 35 epiphytic floras were identified in this study, and consisted of mosses (12 species), ferns (21 species) and seed plants (2 species). Dendrogram showed that the examined species clustered based on the similarity of morphological characters
Induksi Embriogenesis Somatik Pada Anggrek Vanda Sumatrana Schltr. dengan Penambahan Beberapa Konsentrasi Asam 2,4-Diklorofenoksiasetat (2,4-D) Anita Tri Astuti; Zozy Aneloi Noli; Suwirmen Suwirmen
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.6-13.2019

Abstract

The research about induction of somatic embryogenesis of  Orchid Vanda sumatrana Schltr.  by giving 2,4-Diclorophenoxiacetic acid (2,4-D), was conducted from May to July 2016 in plant Physiology and tissue Culture Laboratory, Biology Departement, Matematics and Natural Science Faculty, Andalas University. The aim of this study was found the concentration of 2,4-D to induce somatic embryogenesis of Vanda sumatrana. The research used Completely Randomized Resign (CDR) with 6 treatments and 4 replication. The treatments were : without 2,4-D (control); 1 mg/L; 2 mg/L; 3 mg/L; 4 mg/L; 5 mg/L. The result showed that 2 mg/L 2,4-D and 3 mg/L 2,4-D were concentrations to induct somatic embryogenesis.
Paku Kawat Lycopodiella cernua (L.) Pic. Serm. (Lycopdiaceae-Lycopodiales) dari Provinsi Riau – Kajian Morfologi dan Sekuen DNA berdasarkan Primer RBCL Nery Sofiyanti; Mayta Novaliza Isda
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.43-50.2019

Abstract

Moss club (Lycopodiella cernua) is one of fern members distributed in Riau Province. The aimed of this study were to characterized the morphological characters and to analized its DNA sequence based on rbcl primer. Samples were collected from the field, documented and characterized the morphological charaters. DNA were isolated and amplified using PCR method and rbcl primer.  DNA sequnces were then analized using BLAST   Lycopodiella cernua collected from Riau Province was characterized by having creeping and erect rhizome that covered by microphyl, and terminal strobili. Rbcl fragmen of Lycopodiella cernua was sucssesfully amplified with 643 bp length. BLAST result confirmed the  rbcl fragmen of this club moss.

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