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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
 62   63   64   65   66 
KAJIAN HIDRO-KLIMATOLOGI DAERAH CIREBON-INDRAMAYU-MAJALENGKA- KUNINGAN (CIAYU MAJAKUNING) Gunawan, Dodo
JURNAL BIOLOGI INDONESIA Vol 5, No 3 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v5i3.3187

Abstract

ABSTRACTCase Study of Hidro-Climatology at Cirebon-Indramayu, Majalengka-Kuningan (Ciayu Majakuning). Case Study Water balance calculation has beenconducted in the region of Cirebon, Indramayu, Majalengka and Kuningan or abbreviatednicely as the Ciayu-MajaKuning region. The hidro-climatological component such asevapotranspiration and precipitation were calculated using the NOAH Land-Surface Model(LSM). Model output of monthly data used in the calculation span in the period of 2001-2007.The model has grid box or model resolution of 25 km x 25 km. From the calculation, it is obtainedthat the average of evapotranspiration in this region is 3.1 mm/day or 90 m/month. The maximumvalue of 3.8 mm/day is occurred in May whereas the minimum value of 2.8 mm/day is occurredin December. The highest monthly precipitation occurred in the mountain region (Kuningan)of 450-500 mm/month. In this study area, the period of August-November is the water deficitwhile the period of December-July is the water surplus period in term of water balance. Fromdistrict division point of view, Indramayu is the driest area, and gradually following thetopography height, Kuningan district is the wettest area. Implication of these results to watermanagement aspect is that the dry Area such as Indramayu needs more water supplies byirrigation for agriculture. The sustainable of hydrology cycle path way from Kuningan andMajalengka as the water resources because of highly precipitation to the downstream area(Indramayu and Cirebon) where the precipitation are less is very important in this region.Key words: Water balance, evapotranspiration, hydrology cycle, NOAH-Land-Surface Model
SARCOTHECA CELEBICA VELDKAMP: PERSEBARANNYA DI SULAWESI, STATUS KONSERVASI DAN KELANGKAAN Astuti, Inggit Puji; Sari, Rismita; Susandarini, Ratna; Zuhro, Fatimatuz
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.v14i1.3672

Abstract

TULISAN PENDEKSarcotheca celebica Veldkamp: Persebarannya di Sulawesi,Status Konservasi dan Kelangkaan
THE EFFECT OF BIO-VA MYCORRHIZAE INOCULATION ON BIOMASS OF TREES AND CARBON STOCK OF EIGHT FOREST TREE SPECIES IN BODOGOL PLANTATION-SUKABUMI, INDONESIA Sukiman, Harmastini; Heriyanto, NM.
JURNAL BIOLOGI INDONESIA Vol 12, No 1 (2016): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v12i1.2309

Abstract

Studi tentang pengaruh Bio-Mycorrhizae (BIO-VAM) pada biomasa dari delapan species tanaman dan stok karbonnyadilakukan dengan metoda destruksi sampel dari tanaman yang terpilih di Bodogol, Sukabumi, Jawa Barat. Data yangdidapat dari penelitian menunjukkan bahwa inokulasi Bio-VAM menunjukkan hasil yang positif terhadap biomasatanaman dan stok karbon. Volume biomasa tanaman tertinggi ditunjukkan oleh species tanaman umbrella tree (Maesopsisemenii. Eng) yakni 387,5 g per tanaman apabila diinokulasi dengan mikorisa dan 211,6 g per tanaman tanpa mikorisadiikuti dengan sengon buto (Enterolobium cyclocarpa Griseb), rasamala (Altingia excelsa Noronhae), manglid (Magnoliablumei Prantl), sawo duren (Chrysophyllum cainito L)., ki bereum (Adinandra dumosa Jack) bisbul (Diospyros blancoiDesr.) dan biomasa tanaman terendah ditunjukkan oleh species podocarp/ jamuju (Podocarpus imbricata R.Br) 82,76 gdengan inokulasi mikorisa dan 65,77 g tanpa inokulasi mikorisa. Karbon stok tertinggi ditunjukkan oleh tiga spesiestanaman yakni umbrella tree (Maesopsis emenii. Eng.) 3,23 ton C/ha dengan inokulasi mikorisa sementara tanaman kontrolmenunjukkan 1,76 ton C /ha, dan 11,85 ton CO2 /ha dan 6,46 CO2 /ha. Diikuti oleh sengon buto (Enterolobium cyclocarpaGriseb), rasamala (Altingia excelsa Noronha) Kontribusi karbon stok terendah ditunjukkan oleh podocarp (Podocarpusimbricata Blume) yakni 0,07 ton C/ha (dengan inokulasi BioVAM ) dan 0.05 ton C/ha (tanpa inokulasi BioVam) 0,26ton CO2 /ha dan 0,18 ton CO2. Tujuan dari penelitian ini adalah menganalisa pengaruh inokulasi Bio-VA Mycorrhizaeterhadap produksi biomasa tanaman dan stok karbon selama pertumbuhan tanaman.Kata Kunci: BIO-VAMycorrhizae, inokulasi, biomas tanaman hutan , stok karbon.
ISOLASI BAKTERI PENDEGRADASI PHENANTHRENE DARI BATANTA-SALAWATI RAJA AMPAT PAPUA Riffiani, Rini
JURNAL BIOLOGI INDONESIA Vol 6, No 2 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i2.3153

Abstract

ABSTRACTIsolation of Bacteria Degrading Phenanthrene in Batanta- Salawati Districts Raja AmpatPapua. Polycyclic aromatic hydrocarbons (PAHs) are important environmental contaminantsin soil and water. These compounds have a potential risk to human health, as many of them arecarsinogenic and toxic to marine organisms such as diatome, gasthrophode, mussel, and fish.Phenanthrene is one of the hazardous hydrocarbon compounds. The purpose of this researchwas to characterize microbial strains from Batanta-Salawati Raja Ampat Papua Island and theirability to remove phenanthrene. Two isolates were identified at their physiological characteristicsbased on salinity tolerance, pH tolerance and the composition of nitrogen base. Molecularidentification based on 16S rRNA gene sequences indicated that bacteria had the highestsimilarity with Rhodobacteraceae bacterium F9 and Roseobacter sp. RW 37.Rhodobacteraceae bacterium F9 could grow optimum on ONR7a media with 5% salinity andat pH of 5-7,5 while Roseobacter sp. RW 37 could grow optimum on ONR7a media with 2%salinity and at pH of 6,2-7,5.Key words: Phenanthrene, physiological characteristic, molecular identification, Raja Ampat
BIOLOGICAL ACTIVITY OF ENZYMATICALLY SYNTHESIZED POLYPHENOL GLYCOSIDE ON MICROBIAL GROWTH Soeka, Yati Sudaryati; Widiasih, Lutfi Erlita; Sulistyo, Joko
JURNAL BIOLOGI INDONESIA Vol 3, No 3 (2002): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i3.3467

Abstract

ABSTRACTBiological Activity of Enzymatically Synthesized Polyphenol Glycoside on Microbial Growth. We have studied an indigenous bacterial strain produced a glycosyl transfer enzyme (CGTase) yielding polyphenol glycosides from a substrate of starch and polyphenol-aglycone. We observed that the CGTase derived from culture filtrate of some microbial strains (Candida rugosa, Bacillus megaterium, B. coagulans and B. polymixa) could synthesize transfer products in the presence of appropriate polyphenol-aglycones as their acceptors. An inhibitory effects of enzymatically synthesized polyphenol glycosides against bacterial growth was furthermore examined. It was found that polyphenol-glycoside, as one of the transfer products, exhibited high antibacterial activity on the growth of Bacillus subtilis and Escherichia coli, no effect when on Bacillus cereus.Key words : Cyclodextrin glucano transferase (CGTase), enzymatic transglycosylation,polyphenol glycoside, antibacterial activity.
RESPON FISIOLOGIS DAN PERTUMBUHAN KAKAO (THEOBROMA CACAO), KOPI (COFFEA ARABICA), KARET (HEVEA BRASILIENSIS) DAN CENGKIH (SYZYGIUM AROMATICUM ) FASE BIBIT TERHADAP NAUNGAN DAN PEMUPUKAN Hidayati, Nuril; Juhaeti, Titi; Syarif, Fauzia
JURNAL BIOLOGI INDONESIA Vol 11, No 1 (2015): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v11i1.2154

Abstract

Plants show different physiological responses to light intensities. Study on optimum light intensities for different plants is important, especially for commercial plant commodities, such as industrial plantation plants. This research aims to study the influence of shading and fertilization treatments on plant growth and the activity of some physiological process of four industrial trees namely Cacao (Theobroma cacao), Coffee (Coffea arabica ),  Rubber (Hevea brasiliensis) dan  Clove (Syzygium aromaticum). This research was conducted at Cibinong Science Center LIPI. Two treatment factors applied were three levels of shading : 0%, 55%, 75% and three levels of N ferlitizer: 0 g/plant, 5 g/plant and 10 g/plant arranged in Randomized Block Design with five replicates. Result of experiment revealed that all plant species showed the best growth performance and optimum physiological activities under 55% of shade level in combination with 10 g of N fertilization. The highest CO2 was 13.07 µmolm-2s-1  (55%  shad). The highest values of transpiration and stomatal conductance were 7.56 molm-2s-1 dan 0.73 molm-2s-1 (55% shade). The highest carbohydrate content was 22.49% (under 0% shade) and the lowest was 12.74% (under 75% shade). Keywords: Physiological activity, growth, shading, fertilization 
EFIKASI CENDAWAN ENTOMOPATOGENIK UNTUK MENGENDALIKAN ULAT BULU Prayogo, Yusmani; Marwoto, Marwoto; Suharsono, Suharsono
JURNAL BIOLOGI INDONESIA Vol 8, No 1 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i1.3068

Abstract

The efficacy of entomopthogenic fungus for Tussock Moth Caterpillars Control. The occurrence of Tussock Moth Caterpillar (TMC) out break reported in some areas in East Java at Probolinggo, Malang, Batu and other districts were worried. The high caterpillar population not only attacking mangos, cherry, and wild watercress, but also migrating to living house before pupation. The available control of these caterpillar is chemical pesticide. However, thechemical will kill the natural enemies and other beneficial insects. A laboratory experiment to study the efficacy of five entomopathogenic fungus against TMC and pupae was conducted at the Entomology Laboratory of Indonesian Legumes and Tuber Crops Research Institute (ILETRI) in April 2011. Our experiment was arranged using completely randomized design (CRD) with three replicates using five entomopthogenic fungus. The efficacy was determined by the mortality of caterpillar/larva and pupae infected by the fungus. Result showed that these five fungus had not effectively kill the caterpillar, as the dense setae in integument acted as a mechanical barrier to fungus infection. The pupal stage was more susceptible to fungus infection. It was found that Paecilomyces fumosoroseus and Lecanicillium lecanii fungus were more effective than Metarhizium anisopliae, Beauveria bassiana and Nomuraea rileyi repectively. These two fungus could kill 90% of pupae and also were easier to be cultured in a wide range of natural media. Therefore P. fumosoroseus and L. lecanii are potentially used as a biological control agent against TMC out break.Keywords: Entomopathogenic fungus, hairy caterpillar, incubation period, colonization
KARAKTER PERTUMBUHAN DAN AKTIVITAS NITRIFIKASI KULTUR MIKROBA N-SW Agustiyani, Dwi; Imamuddin, Hartati; Haryanto, Tanto
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.v5i1.3211

Abstract

ABSTRACTThe growth character and nitrification activity of nitrifying cultures (N-Sw). Theculture of nitrifiers (N-Sw) was obtained from acclimated sludge of sawit palm oil industrywastewater. The growth and nitrification activity of those cultures were investigated.The result shows that the growth and nitrification activity attained optimum at pH 7-8,and temperature of 30 0C. The culture of nitrifiers was still growing at pH 5, but thenitrification activity was not detected. The growth of nitrifiers and the nitrification activitywas inhibited at 40 0C. The ammonium conversion rate reached 0,088-0,090 mg NNH4+/L/hour/g biomass. The rate of ammonium conversion in the bioreactor increasedto 0.630 mg N-NH4+/L/hour/g biomass as the pH maintained at 7.5-8 and dissolvedoxygen at 3-4 mg/l O2.Key words: nitrifying culture, ammonium, ammonium convertion rate
EVALUASI KETAHANAN GALUR HARAPAN KEDELAI TERHADAP PECAH POLONG DAN KERAGAAN KARAKTER AGRONOMI YANG SESUAI UNTUK IKLIM TROPIS Krisnawati, Ayda; Adie, M. Muchlish
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.v15i1.3769

Abstract

ABSTRACT Pod shattering is one of major constraints in soybean cultivation at tropical environment. The objective of the study was to evaluate resistance to pod shattering and agronomic performance of several  adapted to tropical environment. A total of 14 promising lines and two check cultivars (Anjasmoro and Dega 1) were evaluated in two locations (Mojokerto and Jembrana) on Februari to May 2018. The experiment design was a randomized block in each location, with 16 treatments and four replications. At R8 stage, 30 pods were randomly detached from five sample plants of each line to be used for evaluation of pod shattering resistance using oven dry method. Five promising lines from Mojokerto showed resistant to pod shattering, meanwhile three very resistant and two resistant lines were obtained from Jembrana. Those all resistant promising lines were the progenies of shatter-resistant parent (Anjasmoro). The pod shattering resistance was determined by the pod length, the longer the pods will increase sensitivity to shattering. However, the sensitivity of long pods can be minimized when width of the pod is narrow. The promising lines with shorter pod and the width of the pod is narrow, then this line has the chance to be resistant to pod shattering.  The agronomic characters of soybean are suitable to be developed in tropical regions such as Indonesia are: maturity under 85 days, seed weight more than 14 g/100 seeds, medium plant height, and produce high number of pods. Based on the results of the study obtained one promising line which resistance to pod shattering, produce high productivity and have good agronomic characters. The lines is G511H/Anj//Anj///Anj////Anj-4 with production yield 3.43 t/ha and also adaptable to the tropics.   Keywords: pod shattering, agronomic character, tropical soybean, path analysis   
KARAKTERISASI BIODEGRADASI SENYAWA POLIAROMATIK DIBENZOTHIOPHENE OLEH BAKTERI LAUT NOVOSPHINGOBIUM MATHURENSE LBF-1-0061 Tanjung, Puspasari Noerwan; Yetti, Elvi; Thontowi, Ahmad; Suprihadi, Agung; Purwantisari, Susiana; Yopi, Yopi
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.v12i2.2894

Abstract

ABSTRACTDibenzothiophene is one of polycyclic aromatic hydrocarbon (PAH) compound containing sulfur element. This compound has toxicity, mutagenic and quiet persistent in environment. From sreening test, it was known that isolate LBF-1-0061 was potential to degrade dibenzothiophene. The objectives of this study are to study dibenzotiophene degrading capability by marine bacteria isolate LBF-1-0061 using screening test; analysis of dibenzothiophene residue by GC/MS and identifiy the isolate by molecular identification. The result of this research shown that LBF-1-0061 isolate could grow up to 100 ppm of dibenzotiophene. This isolate also presented degrading capability approximately 37.5% of dibenzotiophene in 14 days incubation. Based on partial 16S rRNA gene analysis, LBF-1-0061 was identified 99% as Novosphingobium mathurense strain SM117.Keywords: sea bacteria, biodegradation, dibenzotiofen, hydrocarbon aromatic polisiclic

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