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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 11 Documents
 1   2 
Search results for , issue "Vol 19, No 3B (2020)" : 11 Documents clear
PERILAKU SINYAL AKUSTIK DAN VISUAL DARI KATAK JANTAN Staurois gutattus DI GUNUNG POTENG KALIMANTAN BARAT Mohamad Jakaria; Junardi Junardi; Riyandi Riyandi
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3960

Abstract

The behavior of both acoustic and visual signals has been observed in Staurois gutattus black-spotted rock frogs. The aim of the study was to determine how S. gutattus frogs communicate to find their mates through acoustic and visual signals. This research was conducted in Mount Poteng, West Kalimantan. Data were analyzed descriptively and graphically to explain the relationship between the measured parameters. Data collection of advertisement call, foot-flagging and amplexus behavior is done directly in the field. All activities carried out are recorded with the camera. The duration of each part of the breeding activity is also calculated using a stopwatch. The male frog's advertisement call and foot-flagging are carried out by the male frogs while attracting their mates to mate. Where the foot-flagging activity was mostly carried out on the rock substrate (62%), while on the leaf substrate advertisement call was more dominant (47%). Then based on the duration, activity advertisement call, foot-flagging and amplexus the longest duration was performed by male frogs in the time range 18.00-05.59. Meanwhile, from the number of individuals, the advertisement call, foot-flagging and amplexus activities were mostly carried out at 18.00-05.59.   
ISOLASI DAN KARAKTERISASI ISOLAT BAKTERI RESISTEN TEMBAGA DARI SUNGAI CISADANE Wahyu Irawati; Candra Yulius Tahya
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3937

Abstract

The water quality of the Cisadane River, located in the industrial factory area, it is contaminated with copper, it is necessary to treat sewage. Biological wastewater treatment using bacteria is a more economical and effective method of removing copper from the environment than chemical methods. This study aims to isolate, identify, determine the level of resistance, and analyze the ability of bacteria to accumulate copper. Isolation was carried out by the spread method in Luria Bertani Agar medium containing CuSO4. Bacterial isolates were identified based on analysis of the 16S rDNA gene. The resistance level is determined based on the Minimum Inhibitory Concentration (MIC) value. The accumulation ability of copper was determined using an atomic absorption spectrophotometer. Six bacteria resistant to copper were isolated and identified as Pantoea agglomerans strain IrCis1, Klebsiella grimontii strain IrCis3, Klebsiella penumoniae strain IrCis4, Shigella flexneri strain IrCis5, Enterobacter cloacae strain IrCis6, and Enterobacter cloacae strain IrCis9 with MIC of 7 mM - 9 mM. Pantoea agglomerans strains IrCis1, Klebsiella grimontii strains IrCis3, Klebsiella pneumoniae strains IrCis4 can accumulate copper of 1,19 mg, 1,39 mg, and 0,92 mg, respectively, per gram of dry cell weight.  
EFEKTIVITAS DOSIS KARBON TETRAKLORIDA (CCl4) TERHADAP TIKUS (Rattus norvegicus L.) SEBAGAI HEWAN MODEL FIBROSIS HATI Fahri Fahrudin; Sri Ningsih; Hajar Indra Wardhana; Dinda Rama Haribowo; Fathin Hamida
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3961

Abstract

Liver damage can produce fibrosis condition both acute and chronic. Development of liver fibrosis in animal models is valuable information in order to gain new entities for treatment. The aim of this study is to get an optimal condition of CCl4 induction for achieving animal models of liver fibrosis. CCl4 diluted in coconut oil was administrated orally for 6 consecutive weeks. Total 25 male rats were divided into 5 treatment groups, namely, P1 was a normal group (without CCl4). P2 (CCl4 40%), 1 ml/kg bw 3 times a week. P3 (CCl4 40%), 0.5 ml/kg bw 3 times a week, P4 (CCl4 10%) 1 ml/kg bw 3 times a week, and P5 (CCl4 10%) 1 ml/kg bw twice a week. The analyzed parameters were the activity of liver enzymes, macro and microscopic liver damage, and the percentage of rat deaths. The results of this study indicated an increase in liver enzymes in all treatments which was higher than P1 (P<0.05). Analysis of liver histopathology exhibeted the same result. However, if viewed the percentage of rat deaths, P5 demonstrated the lowest compared to all treatment groups. It could be concluded  that the administration of CCl4 (10%) was able to create an animal model of liver fibrosis optimally.  
ANALISIS KERAGAMAN GENETIK AKSESI KEDELAI INTRODUKSI DARI WILAYAH SUBTROPIS BERBASIS MORFOLOGI DAN MOLEKULER Rerenstradika Tizar Terryana; Nickita Dewi Safina; Suryani Suryani; Kristianto Nugroho; Puji Lestari
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3894

Abstract

Genetic diversity information on soybean germplasm will establish the success of soybean breeding program. In the present study, four qualitative morphological traits information collected from Germplasm Resources Information Network (GRIN), United States Department of Agriculture (USDA) database (www.ars-grin.gov) and 10 microsatellite markers were used to analyze the relationship among 45 accessions of subtropical introduced soybean. The morphological characters of introduced soybean accessions contributed to support the result of molecular characterization. The introduced soybean accessions used in this study were diverse based on morphological and molecular characters. Based on principle component analysis, the flower color, pod color, and growth habit contributed most of the total genetic diversity. All introduced accessions were overlap into four quadrants based on principal coordinate analysis. All microsatellite primers showed polymorphism on total accession observed. High allele variation (9–27 alleles) was observed among tested accessions, with an average allele number and Polymorphic Information Content (PIC) value of 20.7 and 0.95 (0.92–0.97), respectively. All microsatellite markers showed PIC value >0.7 indicating that these markers were suitable for soybean diversity studies with high differentiation and with the average value of genetic diversity of 0.95. The phylogenetic analysis revealed that 45 soybean accessions could be divided into two major groups. Soybean accessions belonging to the same area did not always occupy the same group. The results confirmed that both morphology and molecular genetic diversity in a combined way could efficiently evaluate the variation present in different soybean accessions in any breeding program.
TEKNOLOGI PIRAMIDA GEN TANAMAN PADI DALAM MENGHADAPI PERUBAHAN IKLIM GLOBAL Fatimah Fatimah; Joko Prasetiyono; Sustiprijatno Sustiprijatno
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3833

Abstract

In the attempt to maintain and hopefully increase national rice production, it is necessary to prepare agriculture sector in facing the impacts of climate change, land degradation, dry land, flooding, slowing production, and population growth rate. Adaptation efforts play an important role in ensuring the sustainability of food security. The development of adaptive rice varieties to abiotic stresses specifically drought and submergence stresses are expected to minimize damage, survive stress, continue to grow and produce. Development of Inpari 30 rice varieties tolerant to submergence to drought tolerant to have a broader spectrum of tolerance through marker-assisted backcrossing methods with the gene pyramid approach. The development of new variety using Inpari 30 as the background is one of the applications of pyramiding gene in Indonesia. Combining conventional breeding with molecular markers and phenotypic selection (drought and submergence) is expected to produce rice lines tolerant to drought and submergence with stabil yields and accelerate the homozygosity of the genome in the third generation. This is an alternative solution to dealing with climate change to support the national food security program.  
MEKANISME RESPON TANAMAN TERHADAP CEKAMAN KEKERINGAN Dwi Setyo Rini; Budiarjo Budiarjo; Indra Gunawan; Radi Hidayat Agung; Rina Munazar
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.4025

Abstract

Drought stress is the major abiotic stress affecting plant growth and productivity. This review emphasizes the discussion of plant response mechanisms when experiencing drought stress. The plant develops the strategies under water deficit conditions in the form of drought escape, drought avoidance, drought tolerance, or a combination of those strategies. Drought stimulates a wide variety of plant adaptation by changes in morphological, physiological, biochemical, and molecular levels. This mechanism is organized by a complex signaling network system comprising of signal perception, signal transduction pathway, and the regulation of drought-responsive genes expression.   
FLUKTUASI KEPADATAN MEGABENTOS DI PERAIRAN KENDARI, SULAWESI TENGGARA Ucu Yanu Arbi; Paiga Hanurin Sawonua; Hendrik Alexander William Cappenberg
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3902

Abstract

Coral reef is an ecosystem which provides suitable habitats for sgroups of biota that has important ecological and economic values which can be used as bio-indicators to assess the health of the environment. Research on megabenthic fauna in Kendari waters and its surroundings, Southeast Sulawesi was carried out at nine permanent stations in 2015 to 2018. The data was collected using the Benthos Belt Transect method that modified from the Belt Transect method on 8 types or groups of megabenthos in these waters. The purpose of this study was to determine the density fluctuation of megabenthic fauna over the years. The mean density of individuals found at each station during the study did not differ significantly. The Kruskal-Wallis test on density of megabenthic fauna during this period of times did not show a significant difference (H = 28.511 > df 7 = 14.067). Drupella spp. was the group species of megabenthic fauna with the highest density each year (1,079-1,738 ind/ha), while lobster was the group species of megabenthic fauna with the lowest density each year (0 - 39.7 ind/ha). The crown of thorns starfish Acanthaster planci had the highest fluctuation where density increased from 28.3 to 71.4 ind/ha.  
MONITORING KEANEKARAGAMAN JENIS BURUNG PADA BERBAGAI TUTUPAN LAHAN DI CIBINONG SCIENCE CENTER (CSC), JAWA BARAT Yohanna Dalimunthe
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3837

Abstract

Birds play an essential role in ecosystems, especially in urban landscapes such as the Cibinong Science Center (CSC). As an urban landscape, CSC always experiences land cover changes due to the development of research infrastructure resulting in various human-made land cover types. This study aims to determine the diversity of birds in various types of land cover as a community response to CSC development dynamics. Bird data was collected using the point count method modified with a grid (plot) measuring 200mx200m with a radius of observation as far as 50m at 34 points. Landsat images were analyzed from 2006 to 2018 to see changes in land cover changes. The observations show that there are 35 species of birds. Among those, three birds are protected by Indonesian regulation. There are six type of land cover in CSC paddy fields, buildings, opened area, farm land, plantation, and water. CSC has total diversity S(mean) = 32 covering 65% of all recorded birds. At land cover level, building area show the highest diversity (Shannon=2.03) while paddy fields is the lowest (Shannon=1.45). Based on the Landsat imagery, there are several changes in vegetation and the addition of some buildings.   
THE FUNCTIONAL CHARACTER OF Auricularia auricula CRUDE POLYSACCHARIDES: ANTIOXIDANT AND ANTIBACTERIAL ACTIVITY Rizki Rabeca Elfirta; Iwan Saskiawan
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3988

Abstract

The food stuffs can be clasified as functional food since the foods can improve the human health. One of them are the food stuffs which have function as antioxidant and antibacterial. These activities were studied on crude polysaccharides from Auricularia auricula. The sample was subsequently isolated using hot water and 1 M NaOH to obtain water and alkali soluble of crude polysaccharides. The antioxidant activity was evaluated using β-caroten-linoleat assay. The results showed that the alkali soluble of crude polysaccharides had the highest antioxidant activity (85.82%) at 350 μg/ml. The water and alkali soluble of crude polysaccharides from A.auricula were evaluated for their antibacterial activity using disc diffusion method. The alkali soluble of crude polysaccharides was found to have the highest antibacterial activity at 100 mg/ml against Staphylococcus aureus InaCC B4 and Escherichia coli InaCC B5 with clear zone values of 3.18 mm and 5.10 mm, respectively. The findings indicated that the alkali soluble of crude polysaccharides from A. auricula could potentially be used in part of well-balanced diets and could be considered as a potential source of natural antioxidant and antibacterial products.  
LARVA TREMATODA PADA SIPUT AIR TAWAR DI AREAL PERSAWAHAN DAERAH ISTIMEWA YOGYAKARTA Soenarwan Hery Poerwanto; Dian Antika Kusuma Dewi; Giyantolin Giyantolin
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3939

Abstract

The life cycle of Digenea subclass trematodes  that mostly involves snails as intermediate host in the larval stage in the form of sporocysts, redia and cercariae. This study aims to determine the species of freshwater snails, populations and stages of trematoda larvae that infect freshwater snails in the paddy fields and also the factors that influence the population of trematoda larvae. This research method uses purposive random sampling. Snails were collected from paddy fields in Sleman Regency, Yogyakarta City and Bantul Regency, Special Region of Yogyakarta. Snails and Trematodes larvae were identified based on morphological characters with a microscope. The results showed that the species of freshwater snail as  an inang antara  of Trematode was Lymnaea sp. (96.9%), Pomacea canaliculata (2.6%), and Brotia sp. (0.5%). The total population of trematoda larvae in freshwater snails was 4329 individuals with the largest population in Sleman Regency (2784 individuals). Trematode larval stages found were sporocysts (4.8%), redia (8.3%), Leptocercous type cercariae (35.2%), and Furcocercous type cercariae (51.7%). The most trematode larvae found in  fresh water snail was  Furcocercous type cercariae. Factor affecting trematode larvae population are the species and abundance of freshwater snail. 

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