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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
 109   110   111   112   113 
KARAKTERISTIK RAGAM KULTIVAR KELAPA (Cocos nucifera L.) YANG DIGUNAKAN SEBAGAI BAHAN UPAKARA PADUDUSAN ALIT DI BALI Eniek Kriswiyanti
BERITA BIOLOGI Vol 11, No 3 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v11i3.502

Abstract

Exploration have been conducted to determine characters variation of coconut (Cocos nucifera L.) usually used in Upakara Padudusan Alit ceremonial by Balinese people, covering coconut plantation areas in each regency (kabupaten) of Bali.The characterization is based on measurement and observation of parts of plant according to ”Descriptors for Coconut” (IBPGR, 1992). Upakara Padudusan Alit use five “cultivars” of coconut known as "nyuh panca warna", derived from coconut with specific individual character i.e. has bole. There are five cultivars C. nucifera L. var. typica Nar. ), i.e. ‘Gading Tall', 'Bulan Tall', 'Udang Tall' and 'Sudamala Tall'. Besides there are 4 derived cultivars from Dwarf coconut (Cocos nucifera L. var. Riff nana), i.e. ‘Gadang Dwarf, 'Gading Dwarf ', 'Bulan Dwarf ' and ‘Udang Dwarf'. Characteristics of each coconut are in certain part, like Gadang, Gading, Bulan, with green, yellow and white epicarp. The Nyuh Udang is red in calyx base or in mesocarp; inflorescence of ‘Sudamala tall’ has two bracts, branched spatha and flat spikelet stalk. Determination key of these cultivars is produced.
PENGARUH PEMAPARAN MEDAN MAGNET 0,2 mT PADA MEDIA YANG MENGANDUNG LOGAM (Al, Pb, Cd, dan Cu) TERHADAP Bacillus sp DALAM MENGHASILKAN PROTEASE Sumardi Sumardi; Rochmah Agustrina; Bambang Irawan; Shofia Rodia
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.v19i1.3780

Abstract

This study aimed to determine the effect of 0.2 mT magnetic field exposure on metals (Al, Pb, Cd and Cu) containing media, to proteolytic index of Bacillus sp., protease activity and cell morphology of Bacillus sp. This study consisted of three stages. The first stage was a proteolytic test on solid media containing milk. The second stage was the production of protease enzymes in liquid media. The third stage was Scanning Electron Microscopy (SEM) analysis on a culture treatment known as protease enzyme activity. The results showed that the largest proteolytic index on CuCl2 metal ion content of magnetic 0.2 mT magnetic field for 10 minutes increased the value of the largest proteolytic index was 4.33. While in the ion solution containing CdCl2, Bacillus sp. culture did not grow. In the production of enzymes in the liquid medium, the highest enzyme activity (0.140 U/ ml) was produced on a medium containing AlCl3 and exposed to magnetic fields. The SEM analysis also proved that the supplementation of AlCl3 increased cell length by 2.38 and 2.78 times longer than control without magnetic field and for magnet field, respectivelly. 
KEANEKARAGAMAN JA BAMBU DI PULAU SUMBA Kartini Kramadibrata
BERITA BIOLOGI Vol 10, No 5 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i5.1922

Abstract

Arbuscular fungi (AF) associated with eight species of bamboo in Sumba island was studied. The study was initiated by collecting soil samples from bamboo rhizospheres followed by mass propagation of AF by culturing in pot. After several months soil from pot cultures were wet sieved and decanted followed by centrifugation and spores of AF were collected, identified by morphological characters under light microscope. The result showed that diversity of AF in bamboo in Sumba island is low but record of Acaulospora foveata on Bambusa blumeana, Dinochloa sp. and Nastus reholttumianus; A. scrobiculata on B. blumeana,Schizostachyum brachycladum (green) and N. reholttumianus; A. tuberculata on Gigantochloa attter, S. brachycladum (yellow) and S. lima; Glomus etunicatum on G. atter; and G. rubiforme on G. atter associated with bamboo is new for Indonesia.
ToxopJasmagondaNia JLLE AND MANCEAUX PADA AYAM BUKAN RAS (Gallus sp.) DAN BURUNG MERPATI (Columba Una Gmelin) DIKOTAMADYA BOGOR L.E Setyorini; E. Purwaningsih; S. Hartini; J. Aziz
BERITA BIOLOGI Vol 4, No 2&3 (1998)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i2&3.1281

Abstract

Using Indirect Hemqiglutination (IHA) test on 26 domesticfowl (Gallus sp.)and domestic pigeon (Columba liviaj were screened "Toxoplasrna gondii infection.All of the serum samples tested were positiffor this protopal infection.From the quantitatif test on 14positives serum samples, 14,28 % has the lowest liter of1£4 and 7,14 % has the highest liter of 1:1024. Mode of the disease spreading and the prevention off.gondii were discussed.
KEANEKARAGAMAN JENIS POHON PADA HUTAN TERGANGGU DI DAERAH KORIDOR TAMAN NASIONAL GUNUNG HALIMUN Razali Yusuf
BERITA BIOLOGI Vol 7, No 1&2 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i1&2.1234

Abstract

A study on the disturbed forest in the corridor of Gunung Halimun National Park has been carried out in order to know the tree species diversity and species composition.The research located at the corridor area of Gn Halimun National Park around Purwabakti and Pulasari villages.The corridor area are roles as the bridge of flora between Salak mountain and Halimun mountain.The recorded tree species at 1 ha plot shows that from 441 individu was 69 species belong to 47 genera and 33 families.From 815 individu the recorded sapling 87 species belong to 68 genera in 40 families. Maesopsis eminii, is an introduced tree but in this study it was recorded as a very dominant species. Futhermore Lauraceae was reported as the biggest family with 9 species.Two species of Cyatheaceae, were encountered during the research, and this family namely Cyathea sp.and Cyathea contaminans has the biggest number of individu by having Family Importance Value (FIV) = 34.21 for tree and FIV = 42.11 for sapling. Fagaceae family was represented by the presence of Lithocarpus spicatus & Castanopsis gemelliflora, and it is as the next biggest number of individu 2 (FIV =31.66) and basal area is 2.7 m .
KARAKTERISASI PROTEASE Bacillus subtilis A1 InaCC B398 YANG DIISOLASI DARI TERASI SAMARINDA Yati Sudaryati Soeka; Sulistiani Sulistiani
BERITA BIOLOGI Vol 13, No 2 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i2.694

Abstract

Proteases is enzyme that breaks the peptide bond to produce amino acids and simpler peptides. This enzyme can be isolated from a variety of sources such as plants, animals and microbe. Alkaline proteases of microbial origin possess considerable industrial potential due to their biochemical diversity and wide applications in tannery, food, medicinal formulations and detergents. The objectives of the research was to determine the characteristics of the protease enzyme produced by strain A1, including incubation time, substrate concentration azokasein, the optimum temperature and pH also stability. The effect of some metal ions as activators or inhibitors of the protease enzyme activity measured with a spectrophotometer at ? 280 nm. Strain A1 was identified by using 16S rDNA sequencing and phylogenetic analysis based on Neighbor Joining method. Strain A1 protease activity was qualitatively demonstrated the presence of a clear zone around the colonies in the medium containing 1% skim milk. Result showed that the highest activity were incubation time of three days, temperature of 50 ºC and pH 8.5 were 87.35 U/mL, 83.44 U/mL and 93.11 U/mL, respectively. Effect of metal ions in the form of divalent and monovalent cations at a concentration of 1 mM on protease A1 activated by divalent cations CaCl2, MnCl2 while divalent cations CuCl2, HgCl2 and monovalent cations KCl, NaCl were inhibitors of each enzyme activity. Result from molecular identification based on 16S rDNA sequence and phylogenetic analysis using Neighbor Joining method suggested that strain A1 was Bacillus subtilis. The strain was registered in the InaCC collection (no. B 398).
KAJIAN FITOKIMIA Hopea mengarawan DAN IMPLIKASINYA PADA KEMOTAKSONOMI HOPEA Sahidin Sahidin; EuisH Hakini; Yana M Syah; Lia D Juliawaty; Sjamsul A. Achmad; Laily Bin Din; Jalifah Latip
BERITA BIOLOGI Vol 8, No 2 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i2.2036

Abstract

Nine resveratrol oligomers have been isolated from the stem bark of Hopea mengarawan i.e. diptoindonesin D (1), balanocarpol (2), ampelopsin A (3), hopeaphuran (4), heimiol A (5), parviflorol (6), a-viniferin (7), isohopeaphenol (8), and vaticanol B (9).The structures of these compounds were determined based on spectroscopic evidence such as UV, IR, 1-D, 2-D NMR and comparison with the reported data. Those compounds implied that Hopea tends to produce resveratrol dimers. Moreover, in subgenus level, besides ampelopsin A (3) and isohopeaphenol (9), resveratrol oligomers in H. mengarawan the same as in H.dryobalanoides. It indicated that H. mengarawan and H. dryobalanoid.es came from the same subgenus.
VEGETASI DAN KEADAAN TANAH HUTAN LELOFUI GUNUNG MUTIS, SOE-NTT H. SIMBOLON; SUKENDAR SUKENDAR
BERITA BIOLOGI Vol 3, No 7 (1987): (Supplement)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i7.1370

Abstract

H. SIMBOLON & SUKENDAR. 1987. Vegetation and soil conditions of forest in Lelofui, Mount Mutis, Soe, East Nusa Tenggara. Suppl. Berita Biologi 3 : 6 - 10.Research on vegetation and soil conditions of forest in Lelofui, Mount Mutis, Soe East Nusa Tenggara has been done. The density of trees were 358 per nectar; height of canopies ranged between 25 m and 35 m with Eucalyptus urophylla as a dominance species.The relative basal area of E. urophylla was 72,82% which was greater than total basal area of remaining species.The others important species were Podocarpus imbricates, Ilex odorata and Acer niveum.The density of saplings were 708 per hectar.The dominant species of this sapling was Daphniphyllum laurinum with the relative basal area of 69,93% The height of sapling species were less then 10 m. The other important species of saplings were Scutellaria discolor and Acer niveum.The plot consisted of 17 species of trees and 9 species of saplings.This species composition was very small comparing to other tropical rain forests elsewhere.This small number of species composition is suggested not directly correlated with a soil fertility.Soil analisis form the plot showed that its properties was not so distinct from other tropical rain forest soil conditions.
PEMBENTUKAN KALUS DAN EMBRIOGENESIS KULTUR PELEPAH DAUN DAN DAUN Caladium HIBRIDA Irawati Irawati
BERITA BIOLOGI Vol 7, No 5 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i5.876

Abstract

Petiole and leaf cultures of Caladium hybrid were grown on MS medium+ lppm 2,4-D and transplanted to MS medium + 1 ppm NAA and then were grown on MS media with or without Kinetin and NAA.The greatest capacity of explants to produce callus was from the base cut and the top cut of the petioles as well as from the main vein of the leaf. Compact calli were grew further into adventive buds and plantlets.Through Scanning Electron Microscope,the development of adventive buds were observed grew from the parenchymatous cells and the vascular bundles.
PENGARUH SUMBER PUPUK ORGANIK TERHADAP PENAMPILAN TEBU (Saccharum officinarum L.) PADA TATA TANAM BARIS GANDA BENIH GANDA Djumali Busro; Sri Mulyaningsih; Teger Basuki
BERITA BIOLOGI Vol 17, No 1 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i1.2828

Abstract

Increased productivity of sugarcane in upland area can be done through the implementation of the integration of manure with a high dose of inorganic fertilizer in the double rows and twice plant populations of single row (“double rows double seeds”) planting arrangement. Limited availability of manure and inorganic fertilizer entails the replacement of manure with green manure fertilizer. The research was aimed to obtain a green manure as replacement manure that can be intercropped in the double rows double seeds planting arrangement. The experiment was done in the Asembagus Experimental Station, Situbondo, East Java on January to December 2014 for plant cane (PC) and from January to December 2015 for ratoon cane (RC). Treatments were arranged in a Randomized Block Design time for replication. The treatment includes (1) the four rows of Crotalaria juncea, (2) two rows of Crotalaria juncea, (3) four rows of peanuts in width between rows of sugar cane, (4) manure, and (5) no organic fertilizer. The results showed that the integration of organic fertilizer with a low dose of inorganic fertilizers increases productivity and sugar yield 5.20 to 41.78% and 33.33 to 69.90%, respectively in PC and 7.33 to 32.67% and 5.74 to 29.61%, respectively in RC from no organic fertilizer. Four rows of Crotalaria juncea could replace the role of manure in improving the productivity and sugar yield for PC and two rows of Crotalaria juncea for RC.

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