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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 5 Documents
 1 
Search results for , issue "Vol 8, No 2 (2020)" : 5 Documents clear
Addition of Benzyl Amino Purine (BAP) to Induction of Drendan Seeds Buds (Lansium domesticum var. aqueum (Jack) Miq.) by In Vitro Mayta Novaliza Isda; Febby Ika Desyana
Jurnal Biologi Universitas Andalas Vol 8, No 2 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.2.61-68.2020

Abstract

Drendan (Lansium domesticum var. aqueum (Jack) Miq. is one of Indonesia's native tropical fruits. Drendan has high antioxidant activity and contains high nutrients, but has started to rarely be found in the field because its management and cultivation is rarely done due to its sour taste in vitro culture is a method or technique of plant propagation which can be an alternative to obtaining drendan seedlings in large quantities and in a short time vegetatively. The purpose of this study was to determine the effect of BAP on shoot induction from drendan seed explants and determine the best concentration of BAP on shoot growth of drendan seed explants in vitro. This study used a completely randomized design with BAP concentrations of 0, 1, 3, 5 and 7 mg / L BAP. The result of this research is the addition of BAP has been able to increase the percentage of live explants and the percentage of shoot formation. Giving BAP did not significantly affect the number of shoots and had a significant effect on shoot emergence time and shoot length. The addition of BAP resulted in slower shoot emergence time. Giving BAP was not able to stimulate shoot induction, but the addition of BAP could increase shoot length growth at a concentration of 5 mg / L BAP of 0.52 cm.
The Growth of Coastal Cottonwood (Hibiscus tiliaceus Linn.) Seedlings by Inoculating Arbuscular Mychorrhiza Fungi (AMF) on Sand Beach Planting Media Nailul Rahmi Aulya; Zozy Aneloi Noli; Suwirmen Suwirmen
Jurnal Biologi Universitas Andalas Vol 8, No 2 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.2.36-40.2020

Abstract

Hibiscus tiliaceus L. is a seaside plant that has several benefits, one of which is as a producer of paper fiber. H. tiliaceus need a better nutrient to grow on coastal land that is still constrained by the high level of salinity. By this, a special treatment is needed to support its growth. One of them is the application of mycorrhizal inoculants. Mycorrhizae is known as one of the fungi that can help plants tolerate salinity. The aims of the research were to determine the effect of AMF inoculants and determine the best doses of AMF to the seedling growth. The research used completely randomized design with 5 treatments and 5 replications. The treatments were (A) without AMF (control), (B) inoculation AMF 10 g/plant, (C) inoculation AMF 15 g/plant, (D) inoculation AMF 20 g/plant and (E) inoculation AMF 25 g/plant. The result showed that AMF can infect the roots of hibiscus seedlings with an infection degree of 18-34%. However, it has not been able to have a significant effect on shoot length, number of leaves, dry weight of root, and dry weight of shoot.
Plant Breeding Through Protoplast Fusion Devi Armita
Jurnal Biologi Universitas Andalas Vol 8, No 2 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.2.42-47.2020

Abstract

Protoplast culture (protoplast fusion) is one method of tissue culture that is widely used in plant breeding programs in a relatively short time. This method is used to overcome the problem of plants that are difficult or impossible to cross conventionally as well as used for species improvement by transferring the desired gene from the donor plant to the target plant via protoplast fusion. Protoplast fusion makes it possible to produce plants that are resistant to a disease and various abiotic stresses, rapid growth rates and have a better quantity and quality of metabolites than their parents. Various factors affect the success of fusion and regeneration of protoplasts into whole plants, including the source of explants, the composition of the enzyme solution and the duration of incubation, fusagen type and culture media for regeneration.
Antimicrobial Activity of Skin Secretion of Rana hosii Frog (Anura: Ranidae) against several pathogenic microbes Feskaharny Alamsjah; Djong Hon Tjong; Zil Fadhillah Rahma
Jurnal Biologi Universitas Andalas Vol 8, No 2 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.2.48-53.2020

Abstract

The research on antimicrobial activity of skin secretion derived from Rana hosii (Anura: Ranidae) against several pathogenic microbes had been conducted at Microbiology Laboratory and at Genetics and Biomolecular Laboratory, both in the Biology Department, Universitas Andalas. The research used to survey and experimental methods. The study aimed to determine the effectivity of Rana hosii skin secretion to inhibit microbial activity, hence it tested onto some pathogenic microbes such as Escherichia coli, Staphylococcus aureus and Candida albicans. The results showed that the biggest inhibition zone formed against E. coli was 10.96 + 0.63 mm, on S. aureus was 11.74 + 1.00 mm, while on C. albicans was 7.42 + 0.80 mm. The results indicated that the skin secretions from Rana hosii frog could be a potential broad-spectrum antibacterial, and antifungal activity against C. albicans.
Diversity of Ground-foraging Ants (Hymenoptera: Formicidae) in Bukit Kasang and Lubuk Bonta, Padang Pariaman District, West Sumatra Meylia Alvareza; Fitra Arya Dwi Nugraha; Irma Leilani; Rijal Satria
Jurnal Biologi Universitas Andalas Vol 8, No 2 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.2.54-60.2020

Abstract

The Study of ground-foraging ant diversity was conducted in Bukit Kasang and Lubuk Bonta, Padang Pariaman District, West Sumatera from April to December 2019. The pitfall trap was used to collect the ground-foraging ants on the area in seven type of habitats. A total 35 species belonging to 23 genera, 4 subfamilies were collected, with Camponotus (4 spp.), Pheidole (3 spp.), and Leptogenys (3 spp.) being the taxa with the most species. Myrmicinae is subfamily with the highest number of species with 15 species, followed by Formicinae (10 spp.), Ponerinae (8 spp.) and Dolichoderinae (2 spp.).

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