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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 2,125 Documents
 150   151   152   153   154 
KARAKTERISASI POPULASI DAN POTENSI CACING TANAH UNTUK PAKAN TERNAK DARI TEPI SUNGAI KAHAYAN DAN BARITO M. A. Firmansyah; Suparman Suparman; Harmini Harmini; I.G.P. Wigena; Subowo Subowo
BERITA BIOLOGI Vol 13, No 3 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i3.677

Abstract

The spread of earthworm habitat much larger on the banks of the rivers in Central Kalimantan.The aim of this study was to characterize the habitat of earthworm located on banks of the rivers of Kahayan and Barito. Preparation of soil profile with dimension 1x1 m and a depth of 20 cm was conducted using transect procedure and positioned from dried riverbed up to river embankment. The results showed that earthworms with a larger size identified as Lumbriscus terrestris was mainly found in Kahayan river, while for relatively smaller species, it was found at Barito river identified as Lumbriscus rubellus. The number of L .rubellus populations is more 12 and 522 earthworms per layer than L. terrestris. The shallow of water level for ground water and rough texture was not suitable condition for earthworm habitat at both location. The level of protein and ash content are 30.30 % and 42.78 % respectively and higher compared to L. rubellus i.e 13.28 % and 6.27% respectively.
ISOLASI DAN IDENTIFIKASI SENYAWA ANTIBAKTERI MINYAK ATSIRI DAUN KEMBANG BULAN {Tithonia diversifolia (Hemsley) A. Gray} Hartati Soetjipto; Lusiawati Dewi; Sentot Adi Prayitno
BERITA BIOLOGI Vol 9, No 2 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i2.2024

Abstract

Isolation and identification of chemical compounds and antibacterial compounds of the essential oil of Kembang bulan or Japanese sunflower {Tithonia diversifolia (Hemsley) A. Gray} leaves showed that the essential oil contain 29 components. The main components were caryophyllene (27.76%), nerolidol (21.81%),caryophyllene oxide (7.06%), copaene (6.41%) and bicylogermacrene (4.90%). The oil was screened for their antibacterial activity through bioautography method. Two antibacterial spots which had Rf 0.49 and Rf 0.61were obtained. The spot with Rf 0.49 was a mixture of 21 compounds with main compounds were heneicosane, nonacosane and tetratetracontane, while the spot with Rf 0.61 consisted of 22 compounds, which the main compound was nerolidol.
POLA REPRODUKSI BEBERAPA JENIS CYPRINIDAE DI PERAIRAN LEBAK LEBUNG, LUBUK LAMPAN, SUMATERA SELATAN D.I. HARTOTO; SULASTRI SULASTRI; I. RACHMATIKA
BERITA BIOLOGI Vol 3, No 3 (1985)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i3.1358

Abstract

D.I. HARTOTO, SULASTRI & I. RACHMATIKA. 1985. Reproductive pattern of some Cyprinids species at Lebak Lebung flood plain area,Lubuk Lampan, South Sumatera. Berita Biologi 3(3): 128 - 135. -A study on reproductive characteristics of three Cyprinids species was conducted in Lubuk Lumpam; a floodplain area in South Sumatera during the early rainy season of 1981. A study of fecundity supported by other biological aspects was used as an approach to reveal the reproductive pattern. Analysis of the Osteochilus hasselti showed that the fish was an early and multiple spawner that strats to breed in a submerged vegetation habitat type before the peak of food abundance in the rainy season. All of the species could not be grouped as small brood spawners, including the least fecund fish Rasbora lateristriata that spawns late in its life span. Chela oxygasteroides showed a similar pattern to the two other species except that it was predicted to spawn during the time of food abundance. Based on Horn's diagram, recapitulation analysis on factors of reproductive strategy indicated that three Cyprinids could be grouped as r - strategist.
METIL EUGENOL, KHEMOTIPE DARIMINYAK ATSIRI Melaleuca spp. (MYRTACEAE) YANG TUMBUH DIKEBUN RAYA CIBODAS Tri Murningsih; Chairul Chairul; Emma Sri Kuncari
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i6.859

Abstract

The essential oils of the fresh leaves of Melaleuca spp. (M. alternifolia Cheel, M. ericifolia Sm., M. squarrosa Donn, and M.genistifolia Sm.) from Cibodas Botanical Garden, Indonesia were isolated by a hydrodistillation method and analysed by a gas chromatography/mass spectrometry (GC/MS) technique. The various Melaleuca species showed differences within their relative essential oil compositions. The oils from all samples were of the methyl eugenol (10.30-71.25%) chemotype. The others major constituent were terpinen-4-ol (38.49%), linalool (19.65%) and bis(2-ethylhexyl)phtalate (66.09%) in the M. alternifolia, M. ericifolia, and M. genistifolia respectively.
PENAPISAN FITOKIMA DAN BILANGAN PEROKSIDA (POV) TIGA JENIS TUMBUHAN FAMILI MORACEACE (Artocarpus sp., A.elasticus, dan Ficus sp.) DARI TAMAN NASIONAL BOGANI NANI WARTABONE (SULUT) Mindarti Harapini; Praptiwi Praptiwi
BERITA BIOLOGI Vol 6, No 4 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i4.3456

Abstract

The  aim of study were to determine the chemical compounds and peroxide values (POV) of methanol extract of three plants species belongs to Moraceae family (Artocarpus (Artocarpus sp., A.elasticus, dan Ficus sp.). Their chemical compounds were identified by Cuiley method, while peroxide value was done by iodometri titration. Methanol extract percentage of Artocarpus sp., A.elasticus, dan Ficus sp. were 20.80%, 3.10% and 4.10% respectively. All of the extract tested contained essential oil, sterol and triterpenoid, aglicon flavonoid, tannin, flavonoid glicoside and saponin. POV of Artocarpus sp., A.elasticus, dan Ficus sp. were 325.24, 306.25 and 1580.07 respectively and POV of q tocopherol was 363.96. So, it can be concluded taht all of three methanol extract act as reductor, because their POV less that POV of q tocopherol and might be act antioxidant. These correalted with their chemical compounds such as flavonoid, tannin and peroxide sugar.
PENGEMBANGAN DAN PENGELOLAAN EBONI DALAM SISTEM DAERAH PENYANGGA M. Bismarck
BERITA BIOLOGI Vol 6, No 2 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i2.1500

Abstract

The increasing value of ebony (Diospyros celebica Bakh.) recently, causes extensive exploration of the species, and as the consequency the natural population of this species become endangered.Conservation of ebony depends on the management of the Nature Conservation areas or the National Parks in Sulawesi.Conserving the gene pool and management of the surrounding area i.e.the buffer zone is important for the species diversity and the social economic aspect of the local community.The buffer zone has three different functions, as greenbelt zone, interaction zone and cultivation zone.These zones are managed in an integrated system where the progress of the region is responsible on the conservation and community development is implemented. The progress of the ebony forest plantation and agriculture zone of the buffer zone area develops into a mixed plantation forest of an agroforestry system in a community forest management.
ISOLASI POPULASI DAN KARAKTERISASI BAKTERI Rhizobium PADA TANAH ASAL TAMAN NASIONAL GUNUNG HALIMUN Sri Purwaningsih
BERITA BIOLOGI Vol 6, No 1 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i1.1185

Abstract

The studies on the isolation of population and characterization of Rhizobium bacteria have been carried out in soil samples from Gunung Halimun National Park. West Java. Soil samples taken from rhizospheres of rasamala (Altingia exsetsa), puspa (Schima wallichii)and kianak (Castanopsis aciaunaassima).Isolation was done in YEMA (Yeast Extract Mannitol Agar) medium, and the population done with MPN (Most Probable Number) method. The growth characteristic was observed by using YEMA medium mixed respectively with Brom Thymol Blue and Congo Red as indicators.The population of Rhizobium bacteria in YEMA medium was in the range of 0.28-35 5CFU/g "' soil x 10 . The highest population of Rhizobium bacteria was found from the samples collected from soil with rasamala (Altingia excelsa) as the host plant Twent> four isolates were isolated, including nine isolates may be grouped as slow growing, while fifteen isolates
SKRINING DAN ISOLASI METABOLIT AKTIF ANTIBAKTERI KULTUR JAMUR ENDOFIT DARI TUMBUHAN Albertisia papuana Becc. Ahmad Fathoni; Muhammad Ilyas; Antonius Herry Cahyana; Andria Agusta
BERITA BIOLOGI Vol 12, No 3 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i3.639

Abstract

Totally 15 isolates of endophytic fungi were obtained from leaves and young stems of a medicinal plant Albertisia papuana Becc.(Menispermaceae). The antibacterial screening of the ethyl acetate extract derived from the fungi cultures in potato dextrose broth (PDB)were performed on a non eluted Thin Layer Chromatography Bioautography assay (TLC bioautography assay). From the screening test, itwas found that the ethyl acetate extract of the fungus Xylaria sp. DAP-KRI-5 culture showed strong antibacterial activity against Staphylococcus aureus. The isolation of active metabolite based on the bioautography guided assay from ethyl acetate extract of the Xylaria sp. DAP-KRI-5, led us to identify phloroglucinol as a main antibacterial compound. The chemical structure of phloroglucinol was deduced from it spectral data, including UV-Vis, 1H and 13C-NMR, GC-MS and published data elsewhere.
THE PREDICTED STRUCTURE FOR THE ANTI-SENSE SIRNA OF THE RNA POLYMERASE ENZYME (RDRP) GENE OF THE SARS-COV-2 Arli Aditya Parikesit; Rizky Nurdiansyah
BERITA BIOLOGI Vol 19, No 1 (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i1.3849

Abstract

The SARS-CoV-2 or COVID-19 pandemic has reached a new height with an unprecedented infection rate and mortality post-world war II history. However, there is no particular designed drug for COVID-19 up to this point. Thus, there exist three strategies for COVID-19 drug design; drug repurposing option, herbal medicine development, and transcriptomics-based drug lead. As the most underutilized option, transcriptomics-based drug lead could be leveraged to deal with SARS-CoV-2 infection. One of the main methods to block the SARS-CoV-2 infection is to inhibit the RNA polymerase enzyme that is responsible to the viral replication. In this regard, the objective of the strategy is to design the anti-sense siRNA drug and lead to inhibit the mRNA of the RNA Polymerase Enzyme (RdRp) gene that encodes the viral RNA Polymerase of the SARS-CoV-2. The Computer-Aided Drug Design (CADD)-based method was leveraged with sequence retrieval of 24 RdRp gene sequences, multiple sequence alignment, phylogenetic tree reconstruction, 2D/3D RNA structure predictions, and RNA-RNA docking. Both the RNAalifold conserved structure from the RdRp genes and the RNAfold structure of the siRNA for blocking the conserved structure are negative or less than 0 kcal/mol. The predicted RNA docking occurred with the best RMSD score of 22.53 Å, which is beyond the accepted threshold of 10-20 Å. Based on the findings, the 2D/3D structures of both the siRNA and mRNA could be elucidated, and the docking between them is feasible. However, this finding should be elucidated in the wet laboratory setting for the final lead validation. 
KEEFEKTIFAN BAHAN PELINDUNG ALAMI DALAM MEMPERTAHANKAN INFEKTIVITAS Spodoptera exigua NUCLEOPOLYHEDROVIRUS (SeNPV) Samsudin Samsudin; Teguh Santoso; Aunu Rauf; Yayi Munara Kusumah
BERITA BIOLOGI Vol 10, No 6 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i6.1932

Abstract

Spodoptera exigua nucleopolyhedrovirus (SeNPV) is a viral pathogen of onion caterpillar S. exigua with high pathogenicity. One of the major constraints to the use of SeNPV for biocontrol of onion caterpillar is its sensitivity to ultraviolet (UV) degradation. The purposes of this research were to determine the effect of sunlight exposure on the virulence of SeNPV and to find out the effective natural UV protectant to maintain the SeNPV virulence. The results showed that the sunlight radiation affects the SeNPV infectivity. Addition of 1% of coconut shell charcoal, lampblack, husk charcoal, yam flour, molasses, yam filtrate, turmeric filtrate and green tea filtrate to the SeNPV suspension were found to be effective as UV protectant. Coconut shell charcoal, lampblack and husk charcoal are activated carbon that can absorb UV light. Yam filtrate is a natural ingredient that contains saponins and is able to protect SeNPV particles as reflectance. While molasses, turmeric filtrate and green tea filtrate containing flavanoid serve as a protective virus particles and UV absorber.

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