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INDONESIA
JURNAL BIOLOGI INDONESIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 08544425     EISSN : 2338834X     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 847 Documents
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POTENSI VIRUS A/CK/WEST JAVA/PWT-WIJ/2006 SEBAGAI VAKSIN Indriani, R.; Dharmayanti, NLP; Adjid, R.M.A.; Darminto, Darminto
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i2.3117

Abstract

ABSTRACTPotential virus A/Ck/West Java/PWT-Wij/06 for Vaccin. Vaccination program for controllingavian influenza (AI) virus infection in poultry have been emerged during the past 5 years inIndonesia. However, due to the mutation character of this virus the available vaccines were nolonger effective. Therefore a new local isolate of avian influenza virus A/Ck/West Java/Pwt-Wij/2006 was studied. The virus, formulated as inactive vaccine, was injected in to 3 weeks oldof layer chickens intramuscularly. At 3 weeks after vaccination, vaccinated chickens werechallenged against seven local isolates of HPAI H5N1 intranasaly. Unvaccinated chickenswere included in the challenge test as control. Results showed that the vaccine produced100% protection against A/Ck/West Java/Pwt-Wij/2006 (homologous), A/Ck/West Java/1067/2003, A/Ck/West Java/Hj-18/2007, and A/Ck/Payakumbuh/BPPVRII/2007; produced 90%protection against A/Ck/BB149/5/2007, and 80% protection against A/Ck/West Java/Hamd/2006 isolates. The vaccine also stoppped viral shedding by day 5 to 7 after challange. Thisstudy indicate that the new local isolate of avian influenza A/Ck/West Java/Pwt-Wij/2006 hasgood potency as vaccine with broad spectrum against a range of AI viruses available inIndonesia.Key words: avian influenza, HPAI, H5N1,vaccine, poultry.
STUDI KELIMPAHAN AKTINOMISETES TANAH DAN HUBUNGANNYA TERHADAP ENZIM SELULASE, AMILASE, TOTAL KARBON DAN NITROGEN HUTAN PASCA KEBAKARAN BUKIT BANGKIRAI KALIMANTAN TIMUR Nurkanto, Arif
JURNAL BIOLOGI INDONESIA Vol 5, No 1 (2008): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v5i1.3208

Abstract

ABSTRACTSoil Actinomycetes Population, Enzymes Activity, and its Relation with Carbon and NitrogenContent, in Bukit Bangkirai, East Kalimantan. Bukit Bangkirai is one of the tropical forest inIndonesia have been exposed with intense forest fire. The affected forest is subjectivelydivided into three level of damages, heavily damage forest (HD), low damage forest (LD) andcontrol (K). The objective of this research was to observe the abundance of Actinomyceteswhich have important role in ecological process. Through decompotition of organic materialsand nutriens cycle. Actinomycetes were isolated and enumerated by SDS-YE method. CFU/ gsoil (x 104) in K, HD and LD are 41,86 ± 25,52, 16,09 ± 5,70 and 18,96 ± 4,19 respectively. Amylaseand cellulase were determined by DNS method. Carbon and Nitrogen total were determinatedby CN analyzer. The different of amylase, cellulase activities and abundace of Actinomycetesbetween HD, LD, and Control plot were not significant. However, carbon and nitrogen totalare different. LD plot has the highest carbon and nitrogen total, followed by control and HDplot. There has no significant different among plot observed may indicate microbial communitiesof soil in Bukit Bangkirai have been recovered.Key words : actinomycetes, fire forest, amylase, cellulase, nitrogen total, carbon total
PENGARUH PENAMBAHAN BUAH-BUAHAN DALAM PAKAN TERHADAP PERUBAHAN WARNA RAMBUT PADA OPOSUM LAYANG (PETAURUS BREVICEPS) JENIS CLASSIC GRAY Farida, Wartika Rosa; Sari, Andri Permata; Handayani, Tri Hadi; Inayah, Nurul; Nugroho, Herjuno Ari
JURNAL BIOLOGI INDONESIA Vol 15, No 1 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i1.3766

Abstract

ABSTRACTThis study aims to determine the possibility of changes in the hair color on young sugar gliders (Petaurus breviceps) were given additional fruits in the feed. Research has been conducted in the Small Mammal Captive Breeding of Zoology Division, Research Center for Biology - LIPI, Cibinong, Bogor. Descriptive method used in this study with 10 days of preliminary and 90 days (3 months) of data collection period. The research material used is 16 young sugar gliders aged about 2-3 months, divided into 2 groups namely group I consists of 8 sugar gliders (4 male and 4 female) whose the parent is brownish brown color, while group II consists of 8 sugar gliders (4 male and 4 females) whose the parent are gray in color. Each group received 2 feeding porridge formulations T0 (control) and T1 (T0 + kepok banana (Musa balbisiana), watermelon (Citrullus lanatus), and red dragon fruit (Hylocereus polyrhizus)). T0 feed composition consists of brown rice porridge, boiled chicken eggs, honey, calcium, and water. Sugar gliders is given live superworm (Zophobas morio) every Tuesday and every Thursday is given live crickets (Gryllidae). During the observation each pair  of young sugar glider is placed in a wire enclosure (60 cm x 42 cm x 42 cm) equipped with feeding box, drinking water bottle and a hammock. The results showed that the average of dry matter intake T1> T0. KII / T0 / enclosure 6 show higher of body weight gain and feed efficiency than KI / T1 / enclosure 4. The addition of fruits into the T1 diet did not show any discoloration in hair on sugar gliders in captivity.  Keywords: fruits, feed intake, hair/fur color, Petaurus breviceps
INTERAKSI GENOTIPE X LINGKUNGAN DAN STABILITAS KARAKTER AGRONOMI KEDELAI (GLYCINE MAX (L.) MERRILL) Sundari, Titik; Nugrahaeni, Novita
JURNAL BIOLOGI INDONESIA Vol 12, No 2 (2016): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v12i2.2889

Abstract

ABSTRACTResearch aimed to determine effect of genotype x environment interactions (GEI) on agronomic characters and yield stability of soybean genotypes were conducted at eight locations, namely Ngawi, Probolinggo, Banyuwangi, Jember, Malang, Sleman-Yogyakarta, Rembiga and Sesela-West Lombok. Materials used in the study were nine soybean genotypes consisting of six promising lines and three improved cultivars (Malabar, Wilis, and Ringgit). A randomized complete block design was used in each location, repeated four times. Observations were made on flowering days, maturity days, plant height, number of filled pods, seed weight per plant, 100 seed weight and seed yield. Results showed that the effect of GEI was significant on all of the observed agronomic characters. Maturity days, filled pods number, seed weight per plant, and seed yield were predominantly influenced by environmental factors, plant height and 100 seed weight were predominantly influenced by genetic factors, whereas flowering days was influenced by GEI. Genotype I/M-824-19 was stable with yield average lower compared to that of all genotypes and Agl/I-1114-8 was stable with yield average higher than the yield average of all genotypes. Wilis and M/IB-895-2 were classified as unstable, but gave yield average higher than the yield average of all genotypes.Keywords: adaptation, promising lines, soybean, stable
PENGARUH INOKULASI BAKTERI TERHADAP PERTUMBUHAN AWAL JARAK PAGAR (JATROPHA CURCAS L.) Widawati, Sri; Rahmansyah, Maman
JURNAL BIOLOGI INDONESIA Vol 6, No 1 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i1.3175

Abstract

ABSTRACTBacterial inoculants affect the early growth of Jatropha (Jatropha curcas L). Genera ofAzotobacter, Bacillus, Chromobacterium, Citrobacter, Nitrosomonas, Rhizobium, andSpaerotillus natans were soil bacterial isolates. The soil was collected from numerous placesaround Pontianak, West Kalimantan. Those isolates were used as inoculants, and formulatedto single and mixed bacterial inoculants, then used to stimulate the early growth of jatrophaseedling in 15 weeks at greenhouse condition. Bacterial inoculations caused better growthperformance compared to its control as pure soil garden medium without inoculations, andneither to bare soil dresses with compost. In the presence of inoculants, plant height wasaccelerated quickly while other inoculants affected to stalk diameter development. Daily growthperformance of jatropha peaked in 8 and 11 weeks after inoculation of Citrobacter andNitrosomonas bacterial component were used as single inoculant, respectively. The increasingof shoot biomass accumulation was three times as caused by single inoculants (Bacillus sp),and the highest one up to four times of biomass weight caused by a mixture inoculants asconsortium of Azotobacter, Bacillus, and Nitrosomonas spp. That selective inoculant hasopportunity to be used for jatropha farming, and this basic study is meaningful to jatropacultivation for standing to bio-fuel resources.Keywords: Jatropha curcas L., inoculants, Azotobacter, Bacillus, Chromobacterium,Citrobacter, Nitrosomonas, Rhizobium , Spaerotillus natans.Kata kunci: Jatropha curcas L., inoculants, Azotobacter, Bacillus, Chromobacterium,Citrobacter, Nitrosomonas, Rhizobium , Spaerotillus natans.
PENGARUH MODIFIKASI KH2PO4, NH4NO3 DAN SUKROSA TERHADAP PERTUMBUHAN TUNAS SERTA PEMBENTUKAN UMBI MIKRO TAKA (TACCA LEONTOPETALOIDES) SECARA IN VITRO Rudiyanto, Rudiyanto; Hapsari, Betalini Widhi; Ermayanti, Tri Muji
JURNAL BIOLOGI INDONESIA Vol 14, No 1 (2018): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v14i1.3658

Abstract

ABSTRACTPolynesian arrowroot (Tacca leontopetaloides (L.) Kuntze), which is one of the bulbous herbaceous plants,have high nutritional value. Modification of macro nutrients by reducing nitrogen content and increasingphosphorus on the medium gave affects on shoot growth and initiated micro tuber formation on in vitrocultures. The aim of this research was to determine the effect of modified macro nutrients in combination withthe increase in sucrose concentrations on shoot growth and micro tuber formation of T. leontopetaloides. Theexperimental design was factorial completely randomized design.The factors tested were modifications of MSmacro nutrients that were. M1 (170 mg/l KH2PO4 and 1650 mg/l NH4NO3; normal, control treatment); M2 (340mg/l KH2PO4 and 825 mg/l NH4NO3); and M3 (680 mg/l KH2PO4 and 412.5 mg/l NH4NO3 in combinationwith 30 (S1) (control treatment), 40 (S2), 50 (S3) and 60 g/l of sucrose (S4). The variables tested were shootheight, number of leaves, number of roots and number of micro tuber which were observed weekly at 0-8weeks after culturing. The results showed that the modification of macro nutrient in combination with sucroseconcentration had significant effect on shoot height, number of leaves and number of roots but not significanton the number of tubers. The highest shoots were found in M1S3 treatment, the highest number of leaves wasin M1S1 and M1S3 treatment and the highest number of roots was in M1S4 treatment. The number of tubersnot significantly different between the treatments tested.Keywords: in vitro, KH2PO4, microtuber, NH4NO3, sucrose, Tacca leontopetaloides
EKOSISTEM LAMUN SEBAGAI BIOINDIKATOR LINGKUNGAN DI P. LEMBEH, BITUNG, SULAWESI UTARA Rustam, Agustin; Kepel, Terry L.; Kusumaningtyas, Mariska A.; Ati, Restu Nur Afi; Daulat, August; Suryono, Devi D.; Sudirman, Nasir; Rahayu, Yusmiana P.; Mangindaan, Peter; Heriati, Aida; Hutahaean, Andreas A.
JURNAL BIOLOGI INDONESIA Vol 11, No 2 (2015): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v11i2.2197

Abstract

ABSTRACTSeagrass ecosystem has a function of spawning, nursery, and feeding ground. Besides, it could be used as a bio-indicator of environmental health. This study of seagrass ecosystem was done in 17- 22 May 2014 in Lembeh Island and Tanjung Merah, Bitung. The purpose of the study is to obtain existing condition of seagrass ecosystem and its role as environment bio-indicator. Purposive sampling method was used representing all study sites. Structure analysis of seagrass communities describes the existing condition, while scoring / weighting method estimate current condition of the seagrass. Results that show there are seven species of seagrass. In the stations opposite to Bitung mainland, 75% of the seagrass are Enhalus acoroides (10-50% covers). Importance value index of the seagrass species were Enhalus acoroides (231?300 %), Thalassia hemprichii ( 102?198 %) and Halophila ovalis (110 %) respectively. Based on the weighting method and environmental standard quality, seagrass ecosystem in Lembeh island opposite to Bitung mainland was in damage and unhealthy condition, while seagrass ecosystem opposite to the open sea was in a good and healthy condition. This was due to the domestic waste that is trapped in seagrass ecosystem in the study site. It is necessary to improve awareness to maintain quality of environmental.  Keywords: seagrass, existing, bioindicator, Lembeh Island 
PRODUCTION OF ACID PHOSPHATASE IN BACILLUS SP. ISOLATED FROM FOREST SOIL OF GUNUNG SALAK NATIONAL PARK Rahmansyah, Maman; Sudiana, I Made
JURNAL BIOLOGI INDONESIA Vol 6, No 3 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i3.3140

Abstract

ABSTRAKProduktivitas Fosfatase Asam pada Bacillus sp. yang Diisolasi dari Tanah Hutan TamanNasional Gunung Salak. Pada pengamatan ini dilakukan karakterisrik bakteri pelarut fosfatyang diisolasi dari tanah hutan Taman Nasional Gunung Salak. Sebanyak 21 koloni hasil isolasidiuji terhadap produktivitas enzim fosfatase berdasar pelarutan media mengandung fosfat.Isolat yang terkuat melarutkan fosfat diidentifikasi sebagai Bacillus sp. Pada pengamatanlanjutan terhadap strain teruji dilakukan penumbuhan pada media cair selama 90 jam inkubasi,dan hasilnya ternyata mampu melarutkan fosfat inorganik (Pi) dari sumber trikalsium fosfat(Ca-Pi) dan alumunium fosfat (Al-Pi) masing-masing pada kisaran 1,2 sampai 152 dan 0.8 sampai25 mg.L-1; dan menunjukkan aktifitas enzim fosfomonoesterase antara 0.2 sampai 1.01 unitpada media yang mengandung larutan para-nitrophenylphosphate sebagai media fosfatorganik (Po) artifisial. Konsumsi glukosa pada media yang diukur selama pertumbuhan sejalanpula dengan produk ortofosfat sebagai akibat adanya aktifitas enzim fosfatase. Peningkatanfosfatase juga sejalan dengan bertambahnya biomassa sel bakteri dan penambahan produkasam glukonat. Penurunan pH dari 7 menjadi 5 diakibatkan peningkatan produk asam glukonatdi dalam media tumbuh. Bakteri pelarut fosfat yang berasal dari tanah hutan Taman NasionalGunung Salak dapat memproduksi fosfatase asam untuk memineralisasi sumber-sumber fosfatmenjadi sumber nutrisi yang siap digunakan oleh akar tumbuhan, dan itu merupakan prediksikuat untuk menjadikan isolat bakteri pelarut fosfat sebagai sumber bahan pupuk hayati.Kata kunci: Bacillus sp., tanah hutan, fosfatase asam, Ca-Pi, Al-Pi.
SENYAWA ANTIBAKTERI YANG DIPRODUKSI OLEH LACTOBACILLUS PLANTARUM DAN APLIKASINYA UNTUK PENGAWETAN BAHAN IKAN Sulistiani, Sulistiani
JURNAL BIOLOGI INDONESIA Vol 13, No 2 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i2.3397

Abstract

ABSTRACTLactic acid bacteria (LAB) generally accepted as safe microorganism and play an important role in the fermen-tation and preservation of food/feed. LAB is known to extend the shelf life of food/feed, because of its ability to produce antibacterial compounds such as lactic acid, hydrogen peroxide and bacteriocins. The objective of this study was antibacterial compounds produced by Lactobacillus plantarum and their application for fish preserva-tive. The research results showed L. plantarum [Su-ls520, Su-ls530, Su-ls537] produces lactic acid from 71.16 to 77.91mg/mL, hydrogen peroxide from 0.17 to 0.25 mg/mL and producing bacteriocins indicated by the pres-ence of the gene encoding plantaricin, an antibacterial compounds that act as food preservative. Lactic acid 1.5% and 3% salt was not able to suppress the growth of bacteria, while fermentation solution (supernatant) of L. plantarum [Su-ls520, Su-ls530], chitosan 1.5% and a mixture of lactic acid 1.5% and salt 3% slightly sup-press the growth of spoilage bacteria on the fish material stored 48 hours at room temperature. Treatment with fermentation solution (supernatant) of L. plantarum Su-ls537 able to suppress strongly growth of spoilage bac-teria in fish material for 24 and 48 hours storage. At 72 hours of storage the fish material rotted, the addition of preservatives no longer able to suppress the growth of spoilage bacteria.Keywords: lactic acid bacteria (LAB), Lactobacillus plantarum, fish, antibacterial compounds, preservation
TEPUNG TAWAR: KEANEKARAGAMAN HAYATI DAN JEJAK BUDAYA DI PEGUNUNGAN MERATUS Royyani, Mohammad Fathi
JURNAL BIOLOGI INDONESIA Vol 10, No 2 (2014): Jurnal Biologi Indonesia
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v10i2.2101

Abstract

The biodiversity used by people as a form of interaction between humans and the environment. The biodiversity isa footstep of the interaction among humans. Tepung Tawar is the concept of biodiversity utilization by localcommunality. It is only the interaction between biodiversity and user but beyond biodiversity utilization namelythe interaction among the local. Through ethnographic studies, it is known that the use of plants by Meratuspeople have long history. In this case, tepung tawar is the field in which humans perform another interpretation ofreality. Tepung tawar also is agreement between the two traditions together to save the practices commonlyperformed by the public, religiously and traditionality.Keywords: biodiversity, custom, meratus, mutual interaction, religion

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