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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
 148   149   150   151   152 
ANALISIS KESESUAIAN IKLIM UNTUK PENGEMBANGAN CENDANA (Santalum album L.) DI NUSA TENGGARA TIMUR Rizaldi Boer; Tania June
BERITA BIOLOGI Vol 5, No 5 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i5.1466

Abstract

Land suitability analysis method is introduced for sandalwood (Santalum album L.) in Nusa Tenggara Timur. It includes analysis on its (I) agro ecological suitability based on crop requirement for climate and soil characteristic, (2) ecological suitability, and (3) social-economic requirement for sustainable and profitable production. Approach to these three components is conducted through desk study/survey and on site research. All information collected and analyzed is combined together in GIS (Geographical Information System) for further use.
PRODUKTIVITAS DUA JENIS JANGKRIK LOKAL Gryillus testaceus Walk. DAN Gryllus mitratus Burn. (Orthoptera: Gryllidae) YANG DIBUDIDAYAKAN P Widyaningrum; Asnath M Fuah; DTH Sihombing
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i2.1150

Abstract

Study on the productivity of two species of local crickets; Gryllus testaceus Walk and Gryllus mitratus Burn which are generally found in the local market have been conducted with the main aim at obtaining information on the capability of those species in producing eggs including the length of production cycles.Three levels of box square density (50 female/box,100 female/box and 150 female/box) and two levels of additional feed (green master and papay leaves) were used as treatments.The results showed that the number of eggs produced by G.mitratus were larger with longer production cycles compared to those of G.testaceus. Species and density has highly significant effects on egg production and feed consumption, whereas,additional feed significantly influencing egg production and feed consumption of the two species.The use of green master as additional feed resulted in a higher egg production than those given papay leaves.
CEMARAN BAKTERI PATOGENIK PADA SUSU SAPI SEGAR DAN RESISTENSINYA TERHADAP ANTIBIOTIKA Anni Kusumaningsih; Tati Ariyanti
BERITA BIOLOGI Vol 12, No 1 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i1.513

Abstract

Fresh milk is a beverage with high protein contents that can be consumed either directly or as ingredient supplement into safely and healthy food. However, the milk also as a good media for development of pathogenic bacteria that also dangerous for human health. The aim of this research was to determine pathogenic bacteria contamination in fresh milk and its antibiotic resistance profiles to several antibiotics. Fresh milk samples were taken from milk cans belong to the farmers at 34 dairy cows centre in Cibungbulang, Bogor, West Java. The quantitative determination was conducted on 34 milk samples. Several parameters examined were based on the Indonesian Nasional Standard (Standar Nasional Indonesia/SNI) No. 01-3141-1998 for Fresh Dairy Milk and SNI No. 7833-2009, such as total bacteria and coliform. The qualitative examination result for isolation and identification of bacteria were found that the milk samples consisted of 41.18% E. coli, 23.53% Streptococcus Gorup B, 8.82% Staphylococcus aureus, and none for Salmonella. The antibiotic resistence profiles were tested to 5 antibiotics. It showed that Escherichia coli isolates were resitance to penicilline (14.3%), oxytetracycline (21.4%), chloramphenicole (57.1%), and streptomycin (28.6%), whereas those Streptococcus Group B isolates were resistance to penicilline (12.5%), Oxytetracycline (37.5%), chloramphenicole (25.0%), streptomucin (87.5%), and ciprofloxacin (87.5%). Multiresistance of E. coli were found against 2 antibiotics, whereas Streptococcus against 2-3 antibiotics. This research indicated that fresh milk samples taken from farmers at Cibungbungang, Bogor were contaminated with several pathogenic bacteria and mostly highly resistance to 5 antibiotics testing.
IDENTIFIKASI GEN PENYANDI PIREN DIOKSIGENASE PADA ISOLAT BAKTERI PENDEGRADASI PIREN FA Febria; Jamsari Jamsari; N Nasir; N Nurhidayat
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.v10i6.1946

Abstract

The pyrene dioxygenase coded by gene is an indicator of bacterial isolates capabilities in pyrene degradation. The encoded gene of pyrene dioxygenase can be amplified and detected in Pseudomonas sp. PyrA2 and Burkholdoriasp. PyrA4 isolates, using primary specific Diox which designed based on PhdF gene sequence, the coding gene of pyrene dioxygenase in Mycobacterium vanbalenii PYR-1. The sequence alignment of pyrene dioxygenase putative gene in both of bacterial isolates with the sequence of pyrene dioxygenase coding gene in M. vanbalenii PYR-1 shows the similarity percentage of 41 % and 42% with Pseudomonas sp. PyrA2 and Burkholdoria sp.PyRA4.
PERTUMBUHAN DAN PERKEMBANGAN TUNAS KULTUR EMBRIO Caryota no Becc. Djadja Siti Hazar Hoesen
BERITA BIOLOGI Vol 4, No 1 (1997)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i1.1293

Abstract

Caryota no Becc,(fish-tailpalm) is considered vulnerable palm, Its population is declining from the habitat by destructive exploitation but also to some extent by local people who remove the edible apex or 'cabbage 'as a vegetable and also obtain sago from the pith of the trunk,so kill the tree.A though its biological characteristics have not been fully studied,this species is also potentially for ornamental plant Thus conservation measures should be taken to improve the status of this threatened species. Tissue culture techniques may provide ways either to propagate or to conserve itin-vitro. Naturally Caryota no Becc.palm fruit after 20years and they can germinate more than 3 months after sowing with low germination value.In this experiment,the tissue culture response of this species are studied using the explant of embryo from (relatively) young fruit (juvenility fruit).The effect ofBA and 2,4D on the shoot growth, root growth and calluses was evaluated, while the evaluation of the effect ofactifated charcoal was discussed. The satisfactory results have not been achieved.
PELAJARAN TERPETIK DARI MENDALAMI BAMBU INDONESIA UNTUK PENGEMBANGANNYA DI MASA DEPAN Elizabeth A Widjaja
BERITA BIOLOGI Vol 8, No 3 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i3.791

Abstract

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SELEKSI JAMUR PATOGEN SERANGGA Beauveria spp. SERTA UJI PATOGENISITASNYA PADA SERANGGA INANG-WALANG (Leptocorisa acuta) Wartono Wartono; Cyntia Nirmalasari; Yadi Suryadi
BERITA BIOLOGI Vol 15, No 2 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i2.2271

Abstract

Rice-stink bug (Leptocorisa acuta Thumb) that attack rice crop often causing heavy damage of panicle of rice as well as decreasing either quantity or quality of grain after harvest. The objective of this research was to select 14 entomopatogenic fungi of Beauveria spp. isolates, collected from rice stink bug (L. acuta) and their pathogenicity assay to insect host L. acuta. We also aimed to study diversity of Beuveria spp. which was isolated from insect host from Situgede, Bogor. The research was conducted at Laboratory, and Green house of Center for Agricultural Biotechnology and Genetic Resources Research and Development, Bogor, in 2014. Result of the study showed that isolates from Situgede Bogor were sucessfully isolated  as Beauveria spp. based on Koch Postulat assay.  The identified fourteen isolates were morphologically confirmed as Beauveria spp. The pathogenicity test was indicated by symptoms and mortality of rice stink bug after inoculation with these entomopathogenic fungi. The Beuveria isolates Stgd2(14)1, Stgd6(14)1, Stgd7(14)2, Stgd8(14)2, and Stgd0113 were the most virulent isolates. Stgd2(14)1 provided the fastest time to kill L. acuta with LT50 values of 6.9 days. The 13 isolates of Beauveria were well amplified by ITS primers. However, no diversity was found among isolates, presumably due its narrow host range tested. 
JENIS-JENIS TIKUS DAN CACING PARASITNYA DI DAS SEKAMPUNG, LAMPUNG A. SUYANTO; W. WIRORENO; A. SAIM
BERITA BIOLOGI Vol 2, No 9&10 (1984)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i9&10.1422

Abstract

Di Indonesia ada ±150 jenis tikus (Kadarsan& Boeadl 1975),namun baru beberapa jenis yang sudah diteliti kandungan cacing parasitnya (Kadarsan 1968, Brown et al. 1975, Carney & Stafford 1979).Padahal tikus dapat berperanan sebagai penyebar penyakit yang disebabkan cacing; kasus penyakit radang selaput otak yang diduga disebabkan cacing Angiostrongylus cantonensis dilaporkan pada pasien rumah sakit Kisaran, Sumatera Utara (Carney et al 1974) dan epidemi skistosomiasis pernah melanda penduduk Lindu, Sulawesi Tengah (Clarke et al. 1974).Mengingat pentingnya peranan tikus sebagai penyebar penyakit cacing pada manusia,dan karena kekayaan fauna cacing di Indonesia belum banyak diketahui maka suatu penelitian dilaksanakan di Dacrah Aliran Sungai Sekampung,Lampung.
PENGARUH SINAR GAMMA PADA BENIH MANGGIS (Gardnia mangostana L.) [Effects of Gamma Rays on Mangosteen (Garcinia mangostana L.) Seeds] Dameria Hutabarat
BERITA BIOLOGI Vol 5, No 1 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i1.1105

Abstract

Mangosteen seeds were irradiated with gamma rays from Co dosages 2.5 Gy, 5 Gy, 7.5 Gy, 10 Gy, 20 Gy, 40 Gy and 60 Gy. The germination rates of irradiated seeds were reduced by an average of 20 % at 20 Gy, 67 % at 40 Gy and no seed germination at 60 Gy.The effects of the treatment on the survival of irradiated seeds were observed.Gamma rays at low dosage (2.5 Gy) was stimulating to seedling growth. The best dosages for inducing variation were around 10 - 20 Gy;variation induced by the treatment included total leaves number and seedling height.
KEANEKARAGAMAN JENIS TUMBUHAN PEMAKAN SERANGGA DAN LAJU FOTOSINTESISNYA DI PULAU NATUNA [Diversity of Insectivorous Plants and Its Photosynthetic Rate in Natuna Island] Muhammad Mansur
BERITA BIOLOGI Vol 11, No 1 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v11i1.481

Abstract

Studies of insectivorous plants diversity and photosynthesis rate of pitcher plants in Natuna Island was conducted on August 2011, Survey in eleven villages conducted to determine the species found in the visited sites, Bioscientific Portable LCI ADC Photosynthesis System used for measurement of pitcher plants photosynthesic rate, The results shows that there are three families of insectivorous plants founded in study sites, namely Nepenthaceae, Droseraceae and Lentibulariaceae, Six species of Nepenthaceae were found (four species and two natural hybrids) i,e; N. gracilis, N. ampullaria, N. rafflesiana, N. reinwardtiana, N. x hookeriana and N. x trichocarpa. While from family Droseraceae and Lentibulariaceae were found only one species respectively, which is Drosera burmanni and Utricularia bifida. Nepenthes reinwardtiana has the highest rate of photosynthesis namely 21,05 µmol/m /s, followed by N. gracilis (17,66 µmol/m /s), N. rafflesiana (16,6 µmol/m /s), N. x hookeriana (15,84 µmol/m /s) and N. ampullaria (9,96 µmol/m /s).

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