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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 237 Documents
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Callus Regeneration of Gynura procumbens (Lour.) Merr. In Vitro Sitti Fatimah syahid; Lusia Seti
Jurnal Biologi Universitas Andalas Vol 10, No 1 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.1.15-22.2022

Abstract

Gynura procumbens (Lour.) Merr. is one of the species of Asteraceae which is potential as medicinal. Propagation of the species could be conducted by vegetative, so the plant genetic variability is narrow. Genetic variability could be increased by somaclonal variation through callus culture. There is no report on in vitro regeneration from callus culture, although this method could assist further genetic improvement of plants. In this experiment, different concentrations of 2,4- D (0.1 ; 0.3 ; 0.5 mg L -1 ) singly or combination with BA (0.1 ; 0.3 and 0.5 mg L -1 ) were evaluated for callus induction and several concentrations of BA (0 ; 0.1; 0.5 and 1.0 mg -1 ) combination with kinetin (0.1 and 0.3 mg-1) were observed for ability of callus formed shoots. The results showed that the best media for callus induction was 0.5 mg L -1 2,4-D + 0.5 mg L -1 BA. This treatment produced friable callus structure, no roots and yellowish white. Callus regeneration was obtained on the combination of 0.1 mg L -1 BA. + 0.1 mg L -1 kinetin and 0.1 mg L -1 BA + 0.5 mg L -1 kinetin but the percentage was still low. Keywords: G procumbens {Lour.} Merr, induction, regeneration, calli, in vitro
Antifungal Activity of Endophytic Bacteria isolated from Pegagan (Centella asiatica L.) for Inhibition the Growth of Malassezia furfur Vivi Yanthi; Mahyarudin Mahyarudin; Ambar Rialita
Jurnal Biologi Universitas Andalas Vol 10, No 1 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.1.23-32.2022

Abstract

Pityriasis versicolor is a superficial fungal infection characterized by changes in skin pigment due to stratum corneum colonization by Malassezia furfur. The Increasing of antifungal resistance and high recurrence rate, requires alternative treatment of medicinal plants. Pegagan (Centella asiatica L.) is known to produce secondary metabolites that have antifungal activity produced by endophytic bacteria that live on pegagan plant tissue. The study aimed to determine the antifungal activity of pegagan endophytic bacteria isolates to Inhibit the Growth of Malassezia furfur. The endophytic bacteria isolates were re cultured on NA media with a streak plate method. Antifungal activity test used the disk diffusion method which is characterized by the formation of inhibitory zones. Total of 37 endophytic bacteria isolates were successed re cultured, and there were 15 endophytic bacterial isolates that have potentcy as antifungal agent with inhibitory zones ranged from 6.5 to 15.52 mm. The most potential isolate was similarity with genus Pseudomonas. The secondary metabolites contained of alkaloids, terpenoids and saponins. The potential Centella asiatica endophytic bacteria had antifungal activity and similarity with the genus Pseudomonas.
The Estimation of Ground Carbon Stock in The Tourist Forest Area Ngalau Indah Payakumbuh Lily Rahmawati; Chairul chairul
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.78-84.2022

Abstract

Ngalau Indah tourist area, Payakumbuh City has a forest area and potential carbon stock. The aim of this study was to find out about the total biomass and carbon stock in Ngalau Indah tourist area, Payakumbuh City. The study would be from November until February 2022. Retrieval of data collection for trees and sapling had done with the nun-destruction method and understorey and litter had done with the destruction method. Based on the data, trees have obtained 12 families, and 18 species, and saplings have obtained 13 families and 16 species. The total biomass was 92,440 ton/ha was included 91,313 tons/ha for tress, 1,012 ton/ha for sapling, 0,053 tons/ha for understories, and 0,062 tons/ha for litter. Carbon stock of trees was 42,917 tonC/ha, sapling was 0,476 ton/ha, understories was 0,024 tonC/ha, litter was 0,029 ton/ha and total carbon stock was 43,446 tonC/ha.
Ants (Hymenoptera: Formicidae) at Biology Laboratory of Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang Indah Anggraini; Fitra Arya Dwi Nugraha; Abdul Razak; Rijal Satria
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.47-52.2022

Abstract

The ants are one of the insects that dominate all ecosystems, it biomass reaching more than 30% in tropical ecosystems. The ants plays positive or negative roles in ecosystem. The negative role of ants is as a household pests that can have a negative impact on humans. The loss caused by pest ants is causing contamination of food as well as contamination of sterile equipment in hospitals and laboratories. The ant stinging will cause allergies and also become disease vectors due they association with several pathogenic microorganisms. This study was conducted at the Biology Laboratory, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Air Tawar, West Sumatra, from October to November 2021. The ants were collected inside and outside of the laboratory by using the baited trap (peanut butter, honey, and sardines) and hand collection methods. A total of 419 individual ants were found belonging to eight species and three subfamilies. The highest number of individual found in Tapinoma melanocephalum.
Bird Species Based On Altitudinal Zonation On Mount Kerinci Hiking Trail Through Kersik Tuo Lintang Yodhy; Rizaldi Rizaldi; Wilson Novarino
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.53-59.2022

Abstract

Altitudinal gradient has specific factors that affect the composition of the bird community. A study of bird species based on altitude zonation on the Mount Kerinci hiking trail through Kersik Tuo, Kerinci, Jambi was conducted in August 2021 to know how the composition and structure of bird communities differed based on altitude zonation. This study was conducted using the point-count method. Point-count distributed along the hiking trail from 1,755 to 2,906 m asl and included in three zones (Zone I: 1,755 - 1,900 m asl: Zone II: 1,901 - 2,500 m asl: and Zone III: above 2,501 m asl). Four hundred sixty-seven individuals from 78 species of birds were recorded along the hiking trail. This number indicates that the number of bird species in the study at Mount Kerinci was more than the number of bird species in the study at other mountains in Sumatra. Species richness was the highest in Zone I (54 species), followed by Zone II (34 species) and Zone III (20 species). The species richness decrease as elevation increases.
The Diversity of Avifauna and Potency for Development of Ecoturism in Minangkabau Village, Padang Panjang City Fitria Ramona; Lilis Suryani
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.60-69.2022

Abstract

Padang Panjang has several tourist attractions surrounded by secondary forests with natural vegetation, one of them is the Minangkabau Village. The Minangkabau village has potencies to be an ecotourism object. This study aims to analyze the potential of avifauna that have an attraction for ecotourism development, determine the role of stakeholders in supporting ecotourism development in Padang Panjang, and analyze development priorities as its potencies and objects of ecotourism attraction in Padang Panjang. We used The MacKinnon method by conducting direct surveys in the field when the birds are active in the morning and evening. Deep interviews were conducted with Dinas Pemuda Olahraga dan Pariwisata (Disporapar) Kota Padang Panjang to determine stakeholders' role in tourism activities in Padang Panjang. SWOT analysis is carried out to see the priority of ecotourism development so that it is more focused and able to contribute to ecotourism areas and the community. The data obtained were analyzed to calculate the Diversity Index, Species Richness, and Species Evenness. The research results show that the Minangkabau Village areas have high diversity, richness, and evenness of bird species, namely H' 3.21, DM 7.50, and ED 0.85. There were 43 bird species from 23 families. Species that has high conservation status are Serindit Melayu (Loriculus galgulus) protected species, Jalak Kerbau (Acridotheres javanicus) with Vulnerable IUCN status, Julang Emas (Rhyticeros undulatus) Vulnerable IUCN status also protected and 2 species of Eagle (Ictinaetus malayensis and Spilornis cheela). These species have potencies to be developed as an ecotourism attraction object that stakeholders support as coaches and companions. The strategy for developing ecotourism in Padang Panjang under its potencies for biodiversity is to increase public knowledge about animal conservation (especially avifauna), biodiversity, and the adverse effects of hunting and collaborate to manage ecotourism by hiking/jungle tracking and birdwatching.
Potential Valuation Of Plants Based On Utilization Of Plants, Local Wisdom and Local Resident Attitude about Plant Conservation in Silokek National Geopark Dina Hayati Putri; Tesri Maideliza; Mahdi Mahdi
Jurnal Biologi Universitas Andalas Vol 9, No 2 (2021)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.9.2.68-75.2021

Abstract

The objectives of this study was to evaluate the utilization of plants, local wisdom and tribe attitudes about plant conservation by the people in Silokek National Geopark. This research used survey method. These data were collected by using Pebble Distribution Method (PDM) and Quisioner. And then, data had been calculated by calculating the value of Local User’s Value Index (LUVI). The result indicated that local people utilizing plants is for herbal medicine 83%. Cyclea barbata is spesies with having the highest LUVI (0.137), followed by Artocarpus elasticus used for furniture (LUVI= 0.060), Styrax sumatrana (LUVI= 0.126) used for ritual, and Imperata cylindrica (LUVI= 0.073) used for livestock feed. And The result showed at least three local wisdom that possible to be integrated to plant conservation such as planting the plants, selectively harvest by select cutting and timing, and special treatment before used the plants like shalawat nabi reading. For tribe attitudes indicated people in Silokek National Geopark more 90% agree for conservation policy in that area.Keywords : Local User’s Value Index (LUVI), Pebble Distribution Method (PDM), Silokek National Geopark.
Water Quality Bioassessment Using Macrozoobenthos In The Batang Arau River, Padang City Saidina Bima; Izmiarti Izmiarti; Nofrita Nofrita
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.70-77.2022

Abstract

Research on Water Quality Bioassessment Using Macrozoobenthic in the Batang Arau River, Padang City was carried out in March - September 2021. This study aims to determine the composition and structure of the macrozoobenthic community and water quality in the Batang Arau River based on the BMWP-ASPT index. This research uses the survey method and station determination by purposive sampling, based on environmental conditions. Macrozoobenthic samples were collected by using Surber net 30x30 cm2 and Eckman grab 15x15 cm2, and physical and chemical factors were also measured. The results showed that the macrozoobenthic communities found in the Batang Arau River were 37 genera with the composition of 6 genera Gastropods, 28 genera Insect, 2 genera Hirudinea, and 1 genus Oligochaeta. The total density of macrozoobenthic ranged from 140-1775 ind/m2 with the highest density at Station V and the lowest at Station III. The predominant genus (KR ≥ 10%) found at each station varied, Station I and Station II were Orthocladius and Caenis; Station III was Polypedium, Orthocladius, Baetis, and Elophila, Station IV was Orthocladius, Caenis, Erpobdella, Hellopdella, and Tubifex, and Station V was Melanoides. The diversity index of macrozoobenthic (H') in the Batang Arau River was 2.38 ranging from 0.5-2.57 classified as low to moderate, and the distribution of the macrozoobenthic population (E) is 0.65, ranging from 0.25-0.8 classified as uneven to equally. The water quality in the Batang Arau River based on the BMWP-ASPT index at Stations I and II are classified as unpolluted, Station III was lightly polluted, Station IV was moderately polluted, and Station V was heavily polluted.
Composition And Structure Of Undergrowth Habitats Of Flora Rafflesia arnoldii R.Br. In The Forests Of Bukik Pinang Mancuang, Kamang Mudiak, Agam Rizka Sefmaliza; Chairul Chairul
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.42-46.2022

Abstract

Vegetation analysis is a way of studying the composition of species and the structure of the vegetation. The objective research about understorey vegetation analysis in the flora habitat of Rafflesia arnoldii in Bukit Pinang Mancuang Forest, Kamang Mudiak, Agam was to determine the composition and structure in the flora habitat of Rafflesia arnoldii in Bukit Pinang Mancuang Forest, Kamang Mudiak, Agam. Vegetation analysis was carried out by using the quadratic plot method with a size of 2 x 2 m. There were 6 plots have been made and species identification was carried out at the Andalas University Herbarium. According to the observation result, there are 32 species discovered consisting of 601 individuals with 19 families. The dominant families are Rubiaceae (34.61%) and Utricaceae (32.61%). The importance value index of Coffea canephora was obtained (51.28%). The plant diversity index in this area was classified as moderate (H'=2.58). Based on the analysis conveyed, it can be concluded that the Rubiaceae and Urticaceae families are adequate forest and life support for Rafflesia arnoldii habitat. It is recommended that the local government designated the forest as a conservation area in order to preserve the existence of Rafflesia arnoldii and its habitat.
Analisis Vegetasi Tegakan Pohon Di Kawasan Hutan Kota Bukit Langkisau Painan, Pesisir Selatan Chairul Chairul; lola sutra islami arwin
Jurnal Biologi Universitas Andalas Vol 11, No 1 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.11.1.1-6.2023

Abstract

Urban forest management must adapt to urban development and aspects of urban life so that the availability and management of key lands in the development of urban forests and the presence of vegetation as the driving element, one of which is trees. This study aims to determine the composition and structure of tree stands in the Bukit Langkisau Painan City Forest, Pesisir Selatan. The method used was purposive sampling with a plot size of 20 m x 60 m with a sub plot of 10 x 10 m for level 12 plots of trees each. It was found that the vegetation composition of tree stands were 10 families, 12 genera, 13 species, and 27 individuals with the dominant family Myrtaceae and the co-dominant families Meliaceae, and sapindaceae. The highest significance value was found in Syzygium racemosum with a value of 43.399 % and the lowest significance index was found in the species Xerospermum noronhianum with 9.298 %. The diversity index (H') is 2,439 which indicates that species diversity classified to moderate. Keyword: bukit langkisau, composition, structure, urban fores.

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