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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
 176   177   178   179   180 
PENGARUH PEMBERIAN SUPLEMEN MADU PADA INDUK MENCIT TERHADAP RASIO JENIS KELAMIN ANAKNYA Awal Riyanto
BERITA BIOLOGI Vol 5, No 4 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i4.1130

Abstract

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ADAPTASI AKSESI KENTANG HITAM {Plectranthus rotundifolius (Poir.) Spreng} TERHADAP BERBAGAI INTENSITAS CAHAYA Ning Wikan Utami; Albert Husein Wawo
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.v11i3.505

Abstract

Light is one of limiting factors for plant growth, including black potatoes {Plectranthus rotundifolius (Poir.) Spreng}. This species is a potential carbohydrates source that has been utilized in some areas as an alternative food.Plant adaptation to light intensity is controlled by genetic potential and environment.The aim of this research is to obtain information about the light intensity that suitable for growing some black potato accessions and mutants. The study was compiled using Nested Randomized Complete Block Design.Five accessions (Solo, Sangian, Nganjuk, 6G and 25G) planted in 3 degrees of light intensity i.e. full light (N0), 70% (N1), 50% (N2) and 25% (N3).The results revealed that light greatly affect the growth and production of 5 accessions of black potatoes. Five accessions tend to tolerant for decreasing light intensity until 70%. Decreasing in growth and yield characters significantly occurred in 25% of light intensity than control. Solo and Sangian stable to 4 light intensity treatments.
VARIASI INTERSPESIFIK JULANG (AVES: BUCEROTIDAE) INDONESIA BERDASARKAN GEN CYTOCHROME-B DNA MITOKONDRIA Jarulis Jarulis; Dedy Duryadi Solihin; Ani Mardiastuti; Lilik Budi Prasetyo
BERITA BIOLOGI Vol 18, No 1 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i1.3714

Abstract

Genetic information of Indonesian hornbills (Julang) is still limited. We sequenced the cytochrome b gene of three hornbill species (Rhyticeros undulatus, R. plicatus, and Aceros cassidix) to explore their genetic variation, distance, and phylogenetic. Nine blood samples for Cyt b from three hornbill species were isolated with Dneasy® Blood and Tissue Kit base on Spin-Column Protocol, Qiagen. SNP, genetic distance, and phylogeny were calculated by MEGA 6.0 software. This study was found variations in the Cyt b gene sequence (849 bp) between three species Indonesian Julang. Rhyticeros undulatus had the most SNP compared to R. plicatus and Aceros cassidix. Substitution of synonyms is more common than substitution of synonyms and transition substitution frequency tends to be much higher than transversion substitution. The three species of Indonesian Julang were markedly separate with an average genetic distance of 5.25%. and separated with the outgroup species at a genetic distance of 9.43%. Cytochrome b sequence genes from these three hornbill species are novel for identifying and classifying hornbills, and could be applied to prevent illegal poaching and conservation management in Indonesia.    
SEED GERMINATION OF THE CORPSE GIANT FLOWER Amorphophallus titanum (Becc.) Becc. Ex Arcang: THE INFLUENCE OF TESTA [Perkecambahan Biji Bunga Bangkai Raksasa Amorphophallus titanum (Becc.) Becc. ex Arcang: Pengaruh Testa] Dian Latifah; RS Purwantoro
BERITA BIOLOGI Vol 14, No 1 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i1.1861

Abstract

Amorphophallus titanum is famous as the gigantic inflorescense and economically prospective due to its 20% glucomannan contents.Various cultivation techniques including germination have been conducted due to the delay in the seed germination of Amorphophallus titanum. Previous studies revealed that A. titanum seeds has not produced faster and better germination rate.Therefore this research was aimed to test the following hypotheses: (1) Fruit pericarp and the pericarp inhibited the germination,(2) testa/seed coat inhibited germination, (3) GA3hormone promoted the germination rate.The germination pattern was also monitored. The experiments consisted of:Experiment 1: sowing the fruit with the seeds inside and Experiment 2 with two treatments: testa peeling and GA3 hormone treatments. The results of Experiment 1 showed that the fruit pericarp and the pericarp inhibited the germination for 124 days. Experiment 2 resulted in: (1) the delay of the germination for 7-35 days caused by the testa/seed coat, (2) GA3 hormone promoted the germination rate 2.19 coefficient of germination rate; and higher GA3 (1000 ppm) may enhance the seedling growth (reached the highest 23.6 ± 1.3).We also recorded developmental stages from the seed germination, first-leaf emergence and tuber development in series of photographs overtime during the experimental period.
VARIASI MUSIMAN PRODUKSI SERASAH JENIS-JENIS DOMINAN HUTAN PEGUNUNGAN RENDAH DI TAMAN NASIONAL GUNUNG HALIMUN JS Rahajoe; H Simbolon; T Kohyama
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&2.1237

Abstract

The litterfall of Allingia excelsa Noroflha, Schima wallichii (DC) Korth., Castanopsis acuminatissima (Bl.) A. DC, C. javanica (Bl.) A. DC. and Quercus lineata Blume, the dominant tree species of Lower Mountain at Gunung Halimun National Park - West Java were studied.The annual litterfall was 7.0 - 8.2 t ha y and the total litterfall was higher during the rainy season than in the dry season. Each dominant tree species had its own specific pattern of leaf shedding. A. excelsa shed their leaves at the end of the rainy season of the first year, during the biannual period of study, while Q. lineata was opposite.C.javanica shed their leaves mainly in the middle of the rainy season in January to February. There was no clear pattern of leaf shedding on C. acuminatissima,and the species was named as non-seasonally type, while S. wallichii, shed their leaves during the dry season, and was named as the dry season type.
KERAGAMAN GENETIK BEBERAPA KLON DURIAN (Durio zibethinus Murray) ASAL JAWA BARAT BERDASARKAN SIDIK RANDOM AMPLIFIED POLIMORPHIC DNA Kusumadewi Sri Yulita; Muna Murnianjari
BERITA BIOLOGI Vol 10, No 3 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i3.741

Abstract

Durian (Durio zibethinus) is one of the most popular tropical fruits in SE Asia. Indonesia has several local clones that have not yet been widely introduced to local fruit markets. This present study aimed to assess genetic diversity of 17 clones of durian from West Java based on RAPD fingerprints. Thirty RAPD's primers were initially screened and four were selected for the analysis.These four primers (OPA 13, OPD 8, OPN 6 and OPA 18) generated 63 scorable bands to which 100% of them were polymorphic.OPA-13 at 700bp was exclusively possessed by Tambleg clone and other bands were shared among the other clones. Clustering analysis was performed based on RAPD profiles using the UPGMA method. The range of genetic similarity value among genotypes was 0.15-0.73 suggesting high genetic variation among them. Results from genetic diversity analysis based on plant propagation system showed a higher genetic diversity value in occulating (87.30%) plants than that of grafting (60.32%).
DIVERSITAS JALUR BIOSINTESIS SENYAWA TERPENA PAD A MAKHLUK HIDUP SEB AGAI TARGET OBAT ANTTINFEKTIF Andria Agusta
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.v8i2.2039

Abstract

Terpenoid is a fundamental cells constituent in living organisms. In living organisms, terpenoid biosynthesize via classical pathway of mevalonate and via deoxyxylulose diphosphate (DXP). The distribution patterns of both pathways are unique and specific in living organisms. In human and animal, terpenoid biosynthesize via mevalonate and IPP isomerase type I enzyme system. In plant, terpenoid biosinthesize via combination of the mevalonate and DXP pathways with IPP isomerase type I enzyme system. In parasitic protozoa like Plasmodium falciparum and in major human bacterial pathogen such as Mycobaclerium tuberculosis, Salmonella typhii and Helycobacter pylori, terpenoid biosynthesize via DXP and repeatitive IPP isomerase type II enzymesystem. The specific diversity of the terpenoid biosynthetic pathways in living organisms can use as targets for development ofnovel antiinfective drugs.
PENGARUH PERENDAMAN LARUTAN ETHREL TERHADAP KECEPATAN MASAK DAN KUALITAS BUAH PISANG AMBON (MUSA PARADISIACA LINN.) N. SETYOWATI; INDARTO INDARTO
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.v3i7.1373

Abstract

N. SETYOWATMNDARTO,1987.The effect of dipping in Ethrel solution on ripening rate and quality of pisang Ambon (Musa paradisiaca LINN) fruits. Suppl.Berita Biologi 3 : 20 - 25.The solution of ethrel for dipping were 750 pprn, 1000 ppm and it were dipped for 2, 4, 8 minutes and control (untreated).The results showed that the treatment accelerated the ripening of pisang Ambon faster 9-1 1 days than control.These werehighly significant difference according to Duncan's multiple range test, P = 1%.The observation indicated that the colour changes,firmness and vitamin C contents did not significanly difference compared to control on every stage of the ripening So that to accelerate ripening of pisang Ambon was recommended to use 750 ppm ethrel solution for 2 minutes.
Shorea henryana - JENIS MERANTINON REKALSITRANT Usep Soetisna; Dody Priadi
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.v7i5.879

Abstract

Shorea henryana - a member species of Dipterocarpaceae known as white meranti. Ecologically distributed on lowland Dipterocarp forest and flourishing in coastal areas. A fairly large tree up to 40 m tall with bole up to 115 cm diameter. Seeds were dispatched from Thailand and showing 72% germination and initial moisture content of 20.3%. First lot of seeds were dried to moisture content 12.5%, 9.4% and 6.1% respectively. Germination of seeds dried to 6.1% m.c. was still relatively high (68%). Contrary to the desiccation resistance, however, the dried seeds seemed not to withstand relatively low temperature for Shorea species, i.e. 14-16 C. Further study will be needed as to investigate a proper storage treatment for this important woody species.
KERAGAMAN IKTIOFAUNA MUARA SUNGAI CIMANUK, INDRAMAYU, JAWA BARAT Prawira ARP Tampubolon; Yunizar Ernawati; M.F. Rahardjo
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.v17i1.1331

Abstract

Cimanuk river, which the estuary formed a delta, is a habitat for many fishes that occupied the water in northern coast of Ja va. The estuary is essential for supporting the fish life cycle. The aim of this study was to asscess the diversity of ichthyo fauna in Cima nuk River estuary. The fishes were collected in three months from July to September 2013 at three locations: Pagirikan, Pabean Ilir and Song. Total fish collected were 1,826 individuals, consisted of 103 species from 41 families and 14 orders. Most of them were from Family Ambassidae,Leiognathidae, Scianidae, Gobiidae, and Ariidae.

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