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Biosaintifika: Journal of Biology & Biology Education
Published by Universitas Negeri Semarang
ISSN : 2085191X     EISSN : 23387610     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Biosaintifika Journal of Biology & Biology Education, an electronic international journal, provides a forum for publishing the original research articles, review articles from contributors, and the novel technology news related to biological research and biological education.
Arjuna Subject : -
Articles 1,068 Documents
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OPTIMASI STERILISASI PERMUKAAN DAUN DAN ELIMINASI ENDOFIT PADA BURAHOL Noor Aini Habibah; Sumadi -; Sri Ambar
Biosaintifika: Journal of Biology & Biology Education Vol 5, No 2 (2013): September 2013
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v5i2.2748

Abstract

AbstrakBurahol termasuk tanaman yang buahnya dapat dimakan, dan mempunyai zat-zat aktif yang berpotensi sebagai obat dan deodoran alami. Kultur in vitro merupakan salah satu cara dalam produksi metabolit sekunder. Tingginya kontaminasi merupakan salah satu hal yang menjadi kendala dalam kultur  in vitro. Salah satu sumber kontaminan adalah eksplan yang digunakan dalam kultur in vitro. Optimasi sterilisasi permukaan merupakan langkah awal yang sangat penting dalam pengembangan kultur in vitro. Penelitian ini bertujuan mendapatkan prosedur optimasi sterilisasi permukaan eksplan daun burahol dan juga melakukan deteksi dan eliminasi edofit pada daun burahol. Optimasi sterilisasi permukaan dilakukan dengan perlakuan variasi konsentrasi klorox dan waktu perendaman. Hasil penelitian menunjukkan bahwa daun burahol mengandung jamur endofit. Eliminasi jamur endofit dapat dilakukan dengan penyiraman tanaman dengan fungisida. Sterilisasi permukaan eksplan yang paling optimal adalah dengan fungisida selama 24 jam, dilanjutkan dengan perendaman bakterisida dan fungisida selama 30 menit, perendaman pada alcohol 70% selama 1 menit, dilanjutkan dengan klorox 15% 10 menit, dan klorox 10% 10 menit berturut-turut. AbstractBurahol has active substances with potential as a drug and natural deodorant. In vitro culture is one way to production of secondary metabolites. High contamination is one of the things that become obstacles in in vitro culture . One of the contaminant source is explant that used in in vitro culture. Optimization of surface sterilization is a very important first step in the development of in vitro culture. This study aims to get the optimization procedure surface sterilization of burahol leaf explant and also perform detection and elimination endophyte on burahol leaves. Optimization surface sterilization is done by treatment by variations clorox concentration and immersion time. The results showed that the burahol leaves contain fungal endophytes. Endophytic fungus elimination can be done by sprinkling the plants with fungicides. Explant surface sterilization is the most optimal with fungicide for 24 hours, followed by immersion bactericide and fungicide for 30 minutes, immersion in 70 % alcohol for 1 min, followed by 10 minutes clorox 15 %, and 10 % clorox 10 minutes.
The Influence of Environmental Factors on the Diversity of Gastropods in Marsegu Island, Maluku Wiwien Bula; Fredy Leiwakabessy; Dominggus Rumahlatu
Biosaintifika: Journal of Biology & Biology Education Vol 9, No 3 (2017): December 2017
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v9i3.10637

Abstract

Gastropods are known to have a wide distribution. They can live in a variety of habitats and influenced by various environmental factors. The aim of this study was to investigate the diversity of gastropods and its relationship with the physical and chemical environment of a water. This research was an ecological research with correlational descriptive type. The selection of Marsegu Island was based on the fact that the area is a conservation area, both the forest and sea are frequently visited by tourists. The results of this research showed that there were 22 species of gastropod found in the water of Marsegu Island. The most commonly found was from the genus of Cypraea (5 species). Gastropods found mostly from the family of Strombidae which consisted of 4 genera i.e. Lambis, Canarium, Strombus and Lentigo. The value of gastropod diversity in the three research stations was moderate, 2.93, 2.91 and 2.95 respectively. In addition, there is a correlation between environmental factors and the diversity of gastropods. The simultaneous effect of the independent variables toward the dependent variables can be explained by the magnitude of the determination coefficient (R Square) which was 0528 or 52.8%. Result of this study confirms that the environmental factors greatly affects the diversity of Gastropod in the coastal waters of Marsegu island. The results can provide benefits as control over fishing and coastal pollution due to human activities.
The Community Structure of Phytoplankton in Seagrass Ecosystem and its Relationship with Environmental Characterstics Gede Iwan Setiabudi; Dietriech G. Bengen; Hefni Effendi; Ocky Karna Radjasa
Biosaintifika: Journal of Biology & Biology Education Vol 8, No 3 (2016): December 2016
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v8i3.6549

Abstract

The aimed of this study was to determine  the plankton communities and its relationship with the chemical and physical condition in seagrass ecosystem at Pegametan Bay. The composition and abundance of plankton were observed in the sea water underneath the surface and were identified based on the guideline of Illustration of the Marine Plankton of Japan. The water quality was measured in situ using WQC HI 9829. The water sample was measured using closed reflux spectrometry for COD, TOC analyzer for DOC and APHA 2102 (4500) method for Nt and Pt. There are 27 species of plankton identified, which can be classified into three groups. Diatom group consists of 18 species with a 74.56% abundance. The non-litoral group consists of 6 species with a 23.35% abundance. Moreover, dinoflagellate group consist of 3 species with a 2.09% abundance. An abundance of plankton greater than 104 cell.L-1 was found in diatome group (Nitzschia sp., Thalassiosira sp., Chaetoceros sp., Flagillaria sp., Thalassiothrix sp., and Melosira sp.) and non-litoral group (Oscillatoria sp. and Spirogyra sp.). The abundance of those species indicated the algae bloom phenomenon. Dinophysis sp. was also identified, which was harmful algal blooms.How to CiteSetiabudi, G. I., Bengen, D. G., Effendi, H., Radjasa, O. K. (2016). The Community Structure of Phytoplankton in Seagrass Ecosystem and its Relationship with Environmental Characterstics. Biosaintifika: Journal of Biology Biology Education, 8(3), 257-269.
Histopathological of White Rats Aorta Induced by High-Fat Feed After Administered by Neem Leaf Ethanolic Extract Baiq Miftahul Jannah; Sri Isdadiyanto; Agung Janika Sitasiwi
Biosaintifika: Journal of Biology & Biology Education Vol 12, No 3 (2020): December 2020
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v12i3.25494

Abstract

Neem (Azadirachta indica A. Juss) is one of the traditional medicines used by local people as antioxidants, anti-hyperlipidemia, anti-inflammatory, and treatment for other diseases such as heart disease. This study aimed to analyze the effect of neem leaf ethanolic extract on aortic wall thickness and aortic lumen diameter of white rats induced by high-fat feed. The male Wistar rats (Rattus norvegicus L.) with 2 months of age were used. This research was an experimental study with a Randomized Complete Block Design consisted of 6 treatments (P0: commercial feed, P1: high-fat feed and duck egg yolk 2.5 ml/200 g BW per oral, P2: P1 + 8 mg/200 g BW simvastatin, P3-P5: P1+ neem leaf extract of 75, 100, and 125 mg/200 g BW respectively) and 4 replications. Aortic preparations were made by the paraffin method and Hematoxylin-Eosin staining. Data were analyzed using ANOVA followed by Duncan Multiple Range Test with 95% confidence level. The result showed that the decrease in wall thickening and lumen narrowing was getting higher along with the increasing doses of ethanol extract of neem leaves. Based on the result of this research, it was found that the high doses of neem leaf ethanolic extract has the same ability with simvastatin to reduce aortic wall thickning and aortic lumen narrowing of white rats. This study is give a new information that the neem leaves can be used as an alternative medicine for cardiovascular disease.
Potential of Water Jasmine (Echinodorus palaefolius) In Phytoremediation of Fe in Leachate Jatibarang Landfill Mellyaning Oktaviani Sonya Kirana Sari; Endah Dwi Hastuti; Sri Darmanti
Biosaintifika: Journal of Biology & Biology Education Vol 11, No 1 (2019): April 2019
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v11i1.17447

Abstract

Water Jasmine [Echinodorus palaefolius (Ness Mart.) J.F. Macbr.] is an aesthetic plant, that can purify wastewater containing high metals through phytoremediation. By using constructed wetlands system E.palaefolius was used to accumulate Fe (Iron) in leachate. Leachate comes from garbage that was piled up and decomposeds. The purpose of this research was to examine the ability of E. palaefolius plants to accumulate Fe in leachate. This study, used a completely randomized experimental design (CRD). The treatment variation were contact time of plants with leachate consisting of 0,7,14, and 21 day after planting. The results showed that Fe accumulated at the root was 10.86 mg/kg with the highest absorption rate occurring at 7 DAP with 1.56 mg/kg/day and BCF of 49.5 ppm. Fe accumulation on the stem was 571 mg/kg, the highest absorption rate at 14 DAP 63.71 mg/kg/day and BCF 3144.54 ppm. The accumulation of Fe in leaves was 696 mg/kg, the highest absorption rate was at 7 DAP with 104 mg/kg/day and BCF value of 3279.28 ppm. The results shows that the duration of contact affects the ability of E. palaefolius in accumulating Fe and improving the quality of leachate.
Identification and Cluster Analysis of Pitcher Plant (Nepenthes spp.) from South Sumatera Indonesia Weni Lestari; Jumari Jumari; Rejeki Siti Ferniah
Biosaintifika: Journal of Biology & Biology Education Vol 10, No 2 (2018): August 2018
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v10i2.13968

Abstract

Nepenthes spp. is a typical plant of Southeast Asia especially Indonesia which has a special leaf modification called a pitcher. The largest number of Nepenthes spp. species in Indonesia is on the island of Sumatra. The purpose of this reseach was to identify and analyze cluster Nepenthes spp. from South Sumatra based on morphological characteristics. The specimens were collected from the forest of Tekorejo Village, Air Itam Village and cultivation location in Palembang city of South Sumatra. Identification of morphological characters performed on the characteristics of root, stem, leaves, and pitcher. The morphological data is used for cluster analysis using NTSYS software version 2.02. The identification results showed 9 variants of Nepenthes spp. which belong to the species N. mirabilis, N. gracilis, and N. sumatrana. Dendogram analysis results form two main clusters with a similarity value of 22%. The first cluster consists of N. mirabilis and N. sumatrana. The second cluster consists of N. gracilis. Based on the results of this study can be concluded that the species Nepenthes spp. South Sumatra is N. mirabilis, N. gracilis, and N. sumatrana. The results of this study will be dedicated to updating information about the existence of Nepenthes spp. from South Sumatra and his cluster.
Keanekaragaman Jenis Vegetasi dan Profi l Habitat Burung di Hutan Mangrove Pulau Nyamuk Taman Nasional Karimunjawa Nugroho Edi Kartijono; Margareta Rahayuningsih; Muhammad Abdullah
Biosaintifika: Journal of Biology & Biology Education Vol 2, No 1 (2010): March 2010
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v2i1.1149

Abstract

Research on the vegetation diversity and bord habitat profi le has been carried outin the Mangrove Forest of Pulau Nyamuk in Karimunjawa National Park to examinethe relationship between vegetation types and mangrove habitat profi le and the spatialusage by birds. A transect method has been employed to survey the vegetation and thepoint count method was used to survey the birds. There were 14 vegetation types and 19species of birds from 14 families at two observational sites in mangrove forest in PulauNyamuk. Exchoecaria agallocha dominated the eastern part of Pulau Nyamuk, whereasLumnitzera racemosa dominated the northern part of the island. The vegetational spaceutilization by birds can be grouped based on the vertical vegetation stratifi cation, i.e. theland, the understorey, the subcanopy and the canopy.Keywords: mangrove vegetation, bird habitat, Pulau Nyamuk, Karimunjawa
The Effect of Physical Activity agains the Telomere Length in the Leukocytes Cells of KONI Athletes Endang Purwaningsih; Titiek Djannatun; Etty Widayanti; Yulia Suciati; Yenni Zulhamidah
Biosaintifika: Journal of Biology & Biology Education Vol 9, No 2 (2017): August 2017
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v9i2.6207

Abstract

Telomeres are strands of non coding DNA at the ends of chromosomes that have the primary function to protect DNA from damage and maintain chromosomal stability. Physical exercise will increase the antioxidant activity can increase telomere proteins, lengthen telomeres and or protein networks associated with telomere so that the telomere remains long, or stopping telomere shortening. Telomere length was also associated with age. The purpose of the research was to determine telomere length of leukocyte cells in the KONI (Indonesian National Sports Committee) athletes in Jakarta. The research method is descriptive, by measuring telomere length using quantitative PCR on leukocyte cells. Samples are KONI athletes from several sports, including men and women athletes, with ages between 15-20 years. Used a control group (not athletes) is students of the Faculty of Medicine, University of YARSI. The results showed that there was no significant difference (p 0.05) between telomere length group of athletes with the control group in both sexes. Similarly, telomere length between athlete male with female athletes also showed no significant difference (p 0.05). It was concluded that physical exercise in athletes KONI at the age of 15- 20 years had no effect on telomere length in leukocytes. The results of this study provide information about the telomere length in Indonesian athletes at an early age.
Aktivitas Antibakteri Ekstrak Kerang Pisau (Solen sp.) dan Kerang Simping (Placuna placenta) Ika Rochmawati; Muslimin Ibrahim; Reni Ambarwati
Biosaintifika: Journal of Biology & Biology Education Vol 7, No 2 (2015): September 2015
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v7i2.3956

Abstract

Penelitian ini bertujuan menguji aktivitas antibakteri ekstrak kerang pisau dan kerang simping dalam menghambat pertumbuhan bakteri uji berdasarkan zona jernih yang terbentuk dan menentukan jenis ekstrak kerang yang paling optimal dalam menghambat pertumbuhan bakteri uji. Kerang pisau yang diperoleh dari Pantai Talang Siring Madura dan kerang simping yang diperoleh dari Lamongan diekstrak dengan menggunakan metode ekstraksi bertingkat dengan tiga pelarut,. Pengujian aktivitas antibakteri dilakukan dengan menggunakan rancangan acak lengkap dengan delapan perlakuan dan tiga ulangan, yaitu pemberian kontrol negatif (akuades), kontrol positif (kloramfenikol), ekstrak heksana, ekstrak etil asetat, ekstrak metanol kerang pisau serta ekstrak heksana, ekstrak etil asetat, ekstrak metanol kerang simping. Data yang diperoleh berupa diameter zona jernih, dianalisis dengan analisis varian satu arah dan dilanjutkan dengan uji Duncan. Berdasarkan hasil uji diketahui bahwa ekstrak etil asetat dan metanol kerang pisau serta ekstrak heksana, etil asetat, dan metanol kerang simping menunjukkan aktivitas antibakteri dan mampu menghambat pertumbuhan bakteri uji Staphylococcus aureus FNCC 0047 dan Escherichia coli FNCC 0091. Ekstrak etil asetat kerang pisau terbukti menunjukkan aktivitas antibakteri paling baik, yaitu menunjukkan diameter zona jernih paling besar dibanding dengan ekstrak-ekstrak yang lain. Ekstrak etil asetat kerang pisau mampu menghambat pertumbuhan bakteri Staphylococcus aureus dengan membentuk zona jernih sebesar 32,10 ± 0,17 mm, sedangkan pada bakteri Escherichia coli ekstrak etil asetat kerang pisau mampu menghambat pertumbuhannya dengan zona jernih yang terbentuk sebesar 32,06 ± 1,07 mm.This research aimed to test the antibacterial activities of the extracts of razor clams and window-pane oyster and determine the extract that can inhibit the growth of tested bacteria optimally based on clear zones formed. Razor clams collected from Talang Siring Beach, Madura and window-pane oyster collected from Lamongan. They were extracted using multilevel extraction method using three organic solvents. Antibacterial activities assay were carried out using completely randomized design with eight treatments. All assays were conducted in triplicate. The treatments were negative control (aquades), positive control (100% of chloramphenicol in aquades), hexane extract, ethyl acetate extract, and methanol extract of each razor clams and window-pane oyster. Diameters of inhibiton zone (clear zone) were analyzed using one way analysis of variance and followed by Duncan’s test. The results revealed that ethyl acetate and methanol extracts of razor clams as well as hexane, ethyl acetate, and methanol extracts of window-pane oyster showed antibacterial activities. These mean they can inhibit the growth of Staphylococcus aureus FNCC 0047 dan Escherichia coli FNCC 0091. Ethyl acetate extract of razor clams showed the highest antibacterial activity, the maximum zone of inhibition (32.10 ± 0.17 mm) was observed against Staphylococcus aureus and the maximum zone of inhibition (32.06 ± 1.07 mm) was observed against Escherichia coli.
The Dynamics of Annonaceae Plants Collection and Its Conservation Efforts in Purwodadi Botanic Garden Dewi Ayu Lestari; Ahmad Masrum
Biosaintifika: Journal of Biology & Biology Education Vol 12, No 2 (2020): August 2020
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v12i2.23324

Abstract

Plant species of Annonaceae family were collected in Purwodadi Botanic Garden (PBG) needs ex-situ conservation efforts to prevent threat of extinction. Annonaceae plants collection in PBG have experienced dynamics over the past of 12 years which affect to diversity and conservation efforts. This study aimed to determine the dynamics or development of Annonaceae plants collection in PBG for the past of 12 years and how their conservation efforts. The methods were used are primary and secondary data collections from Registration Unit, measurement of stem diameter, plant height, branch-free stem height (BFS) of Annonaceae plants collection and microclimatic data (temperature, humidity, soil pH and light intensity) in each block of Annonaceae plants collection. Data were analyzed descriptively and by Principal Component Analysis using the statistical program PAST 4.0. The Annonaceae plant collections in PBG have fluctuated in the number of plants, genera, species, specimens and unidentified species with the addition of 28, 10, 6, 58, and 7 plants respectively. There were also 81 times of species identity changes. Annonaceae plant collections in PBG was able to well adapt and develop based on the average of stem diameter and BFS, with humidity and light intensity became the most influential environmental factors for plant growth. The management of Annonaceae plant collections in PBG consisted of the maintenance activities and studies to support the conservation. By regulating and manipulating of humidity and light intensity in Annonaceae plant collections, plant growth will increase and well maintenance. Management efforts can be planned and developed properly by knowing the dynamics of plant collections.

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