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BERITA BIOLOGI

berita_biologi
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Published by Lembaga Ilmu Pengetahuan Indonesia

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Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Articles 20 Documents

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Search results for , issue "Vol 17, No 3 (2018)" : 20 Documents clear

ISOLASI DAN IDENTIFIKASI KAPANG ENDOFIT ASAL AKAR TANAMAN KUNYIT (Curcuma longa) SEBAGAI ANTIMALARIA Septiana, Eris; Rachman, Fauzy; Lekatompessy, Sylvia J.R.; Sukiman, Harmastini I.; Simanjuntak, Partomuan
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Malaria is still the leading cause of death worldwide with nearly half the worlds population at risk. Parasitic resistance to existing antimalarial drugs in the market makes the search for a source of new drugs from nature is very important. Therefore, the aims of this study are to determine in vitro antimalarial activity of endophytic fungi extract from turmeric root and to identify the selected isolate molecularly. Heme polymerization inhibition method was used as in vitro antimalarial assay. The selected isolate was thrn identified using ITS1, ITS2, and 5.8S sequences of rDNA. The result of this study obtained 16 isolates of endophytic fungi from root of turmeric plant with isolate code were of K.Cl.Sb.A1 - K.Cl.Sb.A16. All of the ethyl acetate extracts of isolated endophytic fungi have heme polymerization inhibition activity. K.Cl.Sb.A11 was the most active isolate on heme polymerization inhibition test with 94,31% at concentration of test material at 8 mg/mL and IC50 value at 1.84 mg/mL. Molecular analysis showed that K.Cl.Sb.A11 isolate was Penicillium sp. and potentially developed as an antimalarial drug.

KEANEKARAGAMAN PALEM DI PULAU MENDANAU, BELITUNG Andayani, Deri; Nurtjahya, Eddy; Rustiami, Himmah
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The study of palm in the Mendanau Island, Belitung was conducted in March 2017. There were 11 palm genera consisting of 14 species: Areca catechu, Calamus densiflorus, C. erinaceus, C. scipionum, Calamus sp., Caryota mitis, Daemonorops melanochaetes, Eleiodoxa conferta, Metroxylon sagu, Oncosperma tigillarium, Orania sylvicola, Pinanga malaiana, Plectocomia elongata, and Plectocomiopsis geminiflora. Based on the study of specimens deposited at Herbarium Bogoriense (BO), there were only four species recorded from Belitung Island, namely: Calamus erinaceus, C. scipionum, Eleiodoxa conferta, and Plectocomiopsis geminiflora. One species Calamus densiflorus is a new specimen collection for BO.

DIVERSITAS FLORISTIK DAN STRUKTUR VEGETASI DI HUTAN GUNUNG PAYUNG, TAMAN NASIONAL UJUNG KULON Purwaningsih, Purwaningsih; Atikah, Tika D.
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

A floristic diversity and vegetation forest structure was carried out on the Mount Payung, Ujung Kulon National Park. The objective was to floristic composition and structure of the forest located at the peninsula of Ujung Kulon, Banten. The study was conducted using the quadrat method by establishing plots of 5000 m2 each at two locations Pasir Ipis and Gunung Keneng, thus the total area sampled was 1 ha. They were Plot Pasir Ipis and Plot Gunung Keneng. A total of 1898 trees comprising 105 species of 74 genera and 43 families were recorded. The number of species at Pasir Ipis higher (90 species) than plot Gn Keneng (61 species). Based on calculation the important value indexes (IVI), there were some dominan species with IVI >10 at Pasir Ipis Neesia altissima (IV=21,55), Barringtonia racemosa (17,89), Payena acuminata (13,35) and Neonauclea lanceolata (12,37). The dominated species at Plot Gn Kendeng were Pseuduvaria reticulata (IV= 34,30), Dillenia excelsa (27,62), Lagerstroemia speciosa (20,89), Popowia pisocarpa (17,57). The structure of forest could be inferred from the diameter and height of trees. The diameter measurements showed that 75,57 % of trees in plot Pasir Ipis and 80,51 % in plot Gunung Kendeng consist of small individuals with diameters between 10-20 cm. Trees with large diameters of >100 cm occurred in two plots among them Barringtonia racemosa, Polyalthia lateriflora, Popowia pisocarpa, Artocarpus elasticus. The presence of large numbers of small trees and lesser numbers of trees with large diameters in a forest stand indicated that the stand was regenerating after heavy disturbance. The presence of the majority of trees with height of < 20 m (99 %) further confirmed the forestâs dynamic status.

KAJIAN POTENSI PRODUKSI AKAR ADVENTIF PAKIS POHON Cyathea contaminans (CYATHEACEAE) DI JAWA BARAT DAN SUMATERA UTARA Wardani, Wita
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Study on production potential of adventitious root of the scaly tree fern Cyathea contaminans was conducted in six locations in West Java and North Sumatra using 20 m x 50 m sampling plot. Data recorded in the study consisted of population density, individual heights and diameter, volume of adventitious roots and environmental factors. The highest population density was found in a population that consisted of saplings with the height of less than 2 m tall. While population with adult plants has the density of 26â36 individual/100 m2. The wighest average volume of adventitious root per individuals was found in a population that dominated by adult stands and lies on a gentle slope at 108,760.70 cm3/individuals, while the lowest was in a population that consisted of saplings. The result statistical analysis showed that production of adventitious root were significantly different in different habitat. Moreover, there was positive correlation between trunk diameter and individual height with the volume of adventitious root, and between the diameter with individual height.

PENGARUH UMUR MASAK POLONG TERHADAP VIABILITAS DAN VIGOR BENIH BEBERAPA AKSESI BENGKUANG (Pachyrhizus erosus) Krisnawati, Ayda; Adie, M Muchlish
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Seed germination uniformity and simultaneity of yam bean was related to pod maturity. A total of ten accessions of yam bean was planted at Kendalpayak Research Station, Malang (Indonesia) from May to October 2016. Yam bean pods of each accession were harvested at three developmental stages, i.e. full-size green pods, yellow pods, and brown/black pods. The experiment was conducted using a completely randomized factorial design with three replications. The first factor was pod maturity and the second factor was yam bean accessions. Significant interactions between pod maturities with accessions were found on characters of epicotyl length, leaf length, leaf width, root dry weight, maximum growth potential, and germination rate at the 10th days of observation. The pod maturity at yellow stage gave the highest maximum growth potential and germination rate. The average germination rate of yellow pods was 8.15% per day which was, higher than those of green pods (3.83% per day) as well as black pods (3.73% per day). These yellow pods have optimal germination growth of compared to those of green as well as black pods. The practical implication of this research is the use of yellow pods as recommended seed source for yam bean cultivation.Â

STUDI ETNOBOTANI TIGA PASAR TRADISIONAL DI KABUPATEN TABANAN BALI Sujarwo, Wawan; Lugrayasa, I Nyoman; Kuswantoro, Farid
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The trade process makes traditional market able to become a pool of traditional knowledge for various local wisdoms that develop in the local community, including the use of plants. This study aims to document the traditional uses of plant species traded in three traditional markets in Tabanan regency. Data collection was carried out by semi-structured interview toward 64 traders of Baturiti, Marga, and Tabanan traditional markets, respectively. Data analysis was performed quantitatively by calculating the use value index, and some ecological indices, such as diversity index, margalef index, pielou index, sÃ¸rensen index, cluster analysis, and principal component analysis. Qualitative analysis was also used to tabulate and presented the data into tables and figures. The study documented 52 plant species belonging to 48 genera and 30 families. Herbs are the most widely used habitus, and Zingiberaceae is the most widely used plant family. The most widely used use-category is condiments, and Cocos nucifera is a plant species with the highest use-value. The study also showed a highly plant diversity, which is traded in each market, with slightly different similarities. Cluster analysis and PCA showed that there is a little difference in plants species traded in three traditional markets. Differences in altitude may affect the diversity of plant species traded, including the buyers preference (community).

BIOLEACHING UNTUK MENINGKATKAN PRODUKTIVITAS LAHAN SULFAT MASAM AKTUAL UNTUK TANAMAN PADI MaftuÃ¢Â€Â™ah, Eni; Susilawati, Ani
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Technology of microbial utilization to accelerate the oxidation of pyrite followed by leaching (bioleaching) has the potential to resolve problems in land management of actual acid sulphate soil. The research aims to obtain a bioleaching technology package that can improve the productivity of the actual acid sulfate soil. The experiment was conducted on tidal swamp land that has soil type of actual acid sulfate at Wana Raya sub-district, district Batola, South Kalimantan, in July - November, 2014. The study was designed by using strip plot with three replications. The treatment consisted of two factors, namely application of an oxidizing microbial pyrite and leaching amount (intensity). The main plot consisted of (P0) without leacing (naturally), (P1) six times leaching , (P2) eight times leaching, and (P3) 12 times leaching. Subplot consisted of (M0) without oxidizing microbial pyrite, (M1) with oxidizing microbial plant used in this study is Inpara 3 of rice variety. Observations were made on soil pH, oxidizing bacteria pyrite, growth of rice plants (plant height and number of tillers) and rice yield. The results showed that the main problem of actual acid sulfate land studied is a high soil acidity (pH of 3.44). Influ-ence of leaching was greater than microbial application on crop yields. Application of the pyrite oxidizing bacterial and leaching eight times gave the best influence on the growth and yield of rice plants.

PERTUMBUHAN, SINTASAN DAN PRODUKSI IKAN NILA MERAH (Oreochromis niloticus) YANG DIBERI KOMBINASI PAKAN KOMERSIL DAN AMPAS TAHU HASIL FERMENTASI Suwoyo, Hidayat Suryanto; Mulyaningrum, Sri Redjeki Hesti; Syah, Rachman
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The study aimed to evaluate the combination between commercial feed and fermented tofu waste feeding for growth, survival rate and production of red Tilapia Oreochromis niloticus in pond. The study was conducted in Experimental Pond Installation of Research Institute for Coastal Aquaculture, Maros, South Sulawesi, using eight ponds with 2,500 m2 in size. Red Tilapia fingerlings (Â±8 cm in length) were reared for 112 days with 1 individu/m2 of stocking density. The feeding treatments were of 100% commercial feed (A), 75% commercial feed + 25% fermented tofu waste (B), 50% commercial feed + 50% fermented tofu waste (C), and 25% commercial feed + 75% fermented tofu waste (D). Feeding frequency was given twice a day using concentration 10% of biomass weight in the first month, and decreased by 3% of biomass weight in the fourth month. Experimental was designed by a completely randomized designed consisted of four treatments and two replications for each treatment. Observed variables were growth, survival rate, feed conversion ratio, production, and water quality. Present study indicated that different levels of combination of commercial feed and fermented tofu waste had significant effect on growth (P<0.05), but did not have significant effect on survival rate, production, and feed conversion ratio (P>0.05). Feeding by combination of 75% commercial feed + 25% fermented tofu waste could be utilized optimally by Tilapia. During experiment, pond water quality was in conducive condition to support the growth and survival rate of red Tilapia.

ADAPTASI DAN KERAGAAN HASIL PADI VARIETAS INPARA DI LAHAN RAWA Koesrini, Koesrini
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Inpara is a rice variety rice released by the Indonesian Agency for Agricultural Research and Development (IAARD) which is adaptive to swamp land. The research objective was to evaluate the adaptability and yield performanceof Inpara varieties in swamp lands. The field experiment was conducted in tidal swamp lands, in Barito Kuala District and in swampy lands, Hulu Sungai Selatan District of South Kalimantan, during dry season of 2014. The research was arranged in a randomized complete design with three replications. The treatment was 7 Inpara varieties, i.e. Inpara 1, 2, 3, 4, 5, 6, 7 and comparison varieties, i.e Margasari in tidal swamp lands and Ciherang in swampy lands. The result showed that there was a variation adaptation between Inpara varieties in tidal swamp land and swampy lands. Inpara 2 and Inpara 3 varieties showed a good adaptation in tidal swamp lands, had the yield of 4.04 t/ha which an increasing yield was 35.9% higher than Margasari variety. Inpara 1 and Inpara 6 varieties presented a good adaptation in swampy lands that produced 2.118 t/ha and 2.275 t/ha and 1.9% and 9.5%, respectively higher than Ciherang variety. Variety of Inpara is not adaptive in swamp lands.

PENGARUH KOLABORASI TERHADAP KUALITAS PUBLIKASI PENELITIAN KEANEKARAGAMAN HAYATI INDONESIA BERDASARKAN BASIS DATA SCOPUS (1990-2012) Rahmaida, Rizka; Amelia, Mia
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i3.3333

Collaboration becomes trend in scientific publication for last decade. Many previous studies showed that collaboration had impact on quality of publication in terms of citation impact. This study aimed to investigate the influence of different pattern of collaboration on the citation impact of publications on biodiversity research from Indonesian researcher. A one thousand six hundred and ninty nine (1,699) articles were published by researchers affiliated with institution located in Indonesia from 1990-2012 based on Scopus database. Different pattern of collaboration were investigated in different level. Based on the result, only 4.4% of those publications were single author publications, 11.4% of those were intra-institution publications, and 17.4% of those were domestic collaboration. Using linear regression analysis, the result of the study showed that there was a significant positive correlation between the number of authors and the number of citations in international publication on biodiversity research from Indonesian researcher. In addition, publications with a higher number of institutions have received higher number of citations. Publication with a higher number of foreign collaborating countries also received more citations.

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