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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
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IDENTIFIKASI ALEL GEN Xa7 PADA PLASMA NUTFAH PADI LOKAL PAREKALIGOLARA MELALUI UJI SEGREGASI FENOTIPE DAN GENOTIPE Dwinita W Utami; TS Kadir; A Nasution
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.v11i1.457

Abstract

Bacterial Leaves Blight (BLB) is one of the major diseases in rice. Among the disease resistance genes HDB, Xa7 gene still can compensate the diversity of Indonesian BLB pathogen in the field. One of the local rice germplasm, Parekaligolara (Indica, IRN: 1541) were selected based on allele mining research which contained a Xa7 alleles. The purpose of this study is to identify the alleles of the Xa7 gene contained in Indonesian local rice Parekaligolara germplasm in rice through the segregation testing based on phenotype and genotype performance of segregating population derived from the crossed with the susceptible control varieties, TN1. The segregation testing were conducted in F1 and F2 populations and analyzed on phenotypes of BLB resistance and genotypes using Xa7SNP markers. The analysis results showed that the Xa7 allele variation founded in the Parekaligolara germplasm are act as dominant alleles that contribute on the BLB resistance trait particularly to Race VIII of BLB pathogen. Xa7SNP8 is polymorphic markers for Xa7 alleles gene that are found in Parekaligolara. This marker could be used as a marker assisted for selection, if Parekaligolara's Xa7 alleles will use as a parent in the BLB disease resistant rice breeding program.
ANCAMAN JENIS IKAN ASING LOUHAN TERHADAP IKAN ENDEMIK DI DANAU MATANO, SULAWESI SELATAN Syahroma Husni Nasution; Gadis Sri Haryani; Rahmi Dina; Octavianto Samir
BERITA BIOLOGI Vol 18, No 2 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i2.2993

Abstract

Lake Matano is one of the ancient lakes in Sulawesi where some endemic fish species of Telmatherina, Mugilogobius, Oryziasand Glossogobius matanensis lived. The presence of alien species can be on threat for the loss of biodiversity in fresh waters, including endemic fish in Lake Matano. The research aim to review the threat of louhan fish as alien species to endemic fish in Lake Matano. The study was conducted in Lake Matano at five stations in April and August 2015 namely Lawa, Nuha, Petea, Pantai Impian, and Pantai Kupu-kupu. Sam-ples were collected using experimental gillnet with mesh size of ¾; 1; 1¼; 1⅟2; 2; 2,5; and 3 inches. Fouteen species were found consist of 10 endemic species and red list.These were three of genus Glossogobius, seven species of Telmatherina, and four alien species of the carp (Cyprinus carpio), louhan, gourami (Trichopodus trichopterus), and tilapia (Oreochromis niloticus). The most common species of endemic fish is T. antoniae. Louhan is the result of a hybrid species Amphilopus citrinellus x Cichlasoma trimaculatum. The abundance of louhan is 64 in April and 40 fishes in August, respectively at a time caught. The percentage ratio of louhan to endemic fish was of 8.6% and 18.3%. This indicated that the louhan fish tend to be invasive and certainly threatened endemic fish survival in this lake. The maturity of gonads of louhan is in the level of I - IV that enables the fish to reproduce quickly.
SEBARAN DAN HABITAT KUKANG JAWA (Nycticebus javanicus) DI AREA PERKEBUNAN SAYUR GUNUNG PAPANDAYAN, KABUPATEN GARUT Wirdateti Wirdateti
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.v11i1.1887

Abstract

The need of medicine product are increasing now. The fermentation of rice by using Monascus purpureus produce lovastatin, pigments and citrinin as secondary metabolites. The aim of this study was to know the concentration of lovastatin, red and yellow pigments and citrinin in rice which fermented by Monascus purpureus that had been mutated by using ultraviolet irradiation.Three strains were used in this research, such as AsK, yellow Jmba and red Jmba.The result were analyzed by using HPLC and Spectrofotometer. The result showed that the yellow Jmba strain which treated by UV mutagenesis for 3 minutes contain higher lovastatin (1.798%) and pigment and lower citrinin (0.019%) compare to without mutagenesis. On the other hand ASK strain produced higher lovastatin (1.903%) but higher citrinin (1.270%).This research is expected to provide scientific information to the public. That M. purpureus contained lovastatin that is beneficial, red and yellow pigments for natural food colorant.
DINAMIKA POPULASI MIKROBA BENTUK FILAMEN PADA PROSES ANAEROBIK-AEROBIK UNTUK PENAMBATAN POSPAT DENGAN MIKROBA I Made Sudiana
BERITA BIOLOGI Vol 4, No 5 (1999)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i5.1252

Abstract

Filamentous bulking is commonly observed in activated sludge treatment plant. The present study is intended to study the dynamic of filamentous organism in enhanced biological phosphorous removal. An anaerobic-aerobic sequential batch reactor was operated at 6 cycles per day with anaerobic phase for 55 minutes, aerobic phase for 135 minutes and settling phase for 60 minutes. Population of filamentous organism were counted and identified.Fluorescence in situ hybridization (FISH) with oligonucleotide probe specific for the alpha, beta, gamma sub class Proteobacteria and gram positive high GC DNA content organism was done to identify in-situ community of filamentous organism in the activated sludge. Them were 4 major filamentous organisms namely Type 021N, 0041, Micmthrix oarvicella and Haliscomenobacter hydrosis, in which type 021N was always dominant. Deterioration of enhanced biological phosphorous removal process was observed when filamentous organism outgrew. Probing technique with oligonucleotide probe revealed that filamentous organism mostly belong to the gamma sub class of Proteobacteria.
KANDUNGAN KUERSETIN DAN POLA PROTEOMIK VARIETAS JAMBU B ATU (Psidium guajava L.) TUMBUH LIAR DIKAWASAN CIBINONG, BOGOR Eddy Jusuf
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.v10i3.756

Abstract

This work was purposed to discover the potencies of some guava {Psidium guajava) varieties or cultivars as medicinal and fruit plant, from which the economic value then would be raised. We have collected from about 500 hectares area of our institute including the village surroundings, 35 numbers of morphologically different guavas wild growing consisting of 18 cultivars of red fruit and 17 of white fruit. Methanol extraction of dried leaves giving flavonoids, which by thin layer chromatography Kieselgel 60F2S4, the spots of quercetin of HRf > 50 obtained from all guava varieties. After extraction of each spot and measuring spectrophotometrically, the quercetin content of each plant number was found to be varied in both, among red fruit and white fruit varieties. The highest, >6.0% quercetin content obtained in two numbers of red fruit and one from white fruit and the lowest, < 0.6% obtained in two numbers of white fruit. Proteomic profile from cutted and blended fresh leaves after extraction using anti proteolytic buffer in coldness, bring us to make a phenogram giving the variability of genetic kinship, that 35 varieties were divided in three groups of kinship; first, all cultivars of red fruit, secondly sixteen cultivars of white fruit, and third one cultivar of white fruit.
KAJIAN ETNOBOTANI PANDAN SAMAK (Pandanus tectorius Sol.) DIKABUPATEN TASIKMALAYA, JAWA BARAT Siti Susiarti; Mulyati Rahayu
BERITA BIOLOGI Vol 10, No 1 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i1.2058

Abstract

Members of the genus Pandanus (Pandanaceae) are used by Indonesian people as food, medicinal and handycraft materials.Three species of Pandanus, namely pandan wangi (P. amaryllifolius), cangkuang (P. furcatus) and pandan samak (P. tectorius) are known in Tasikmalaya, West Java. Pandan samak which has several different local names is the cultivated ones.This species is well known as handycraft from Tasikmalaya and had been exported to other countries. Incomes from the handycraft products is the second biggest source after agricultural sector.
CHECKLIST OF PLANT SPECIES ON THE PEUCANG ISLAND (UJUNG KULON NATURE RESERVE, WEST JAVA) KUSWATA KARTAWINATA; A. APANDI
BERITA BIOLOGI Vol 2, No 1 (1977)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i1.1388

Abstract

The Peucang Island is situated just off westernmost tip of West Java and is a portion of the Ujung Kulon Nature Reserve.It covers a total area of 450 hectares,comprising the level land and a ridge in the central portion with the highest point of about 30 m above sea level.Geologically this island is composed of Tertiary materials and alluvial materials on southern and eastern coastal areas (Verbeek and Fennema 1896).From the southeastern shore towards the hills, there are three types of soil, i.e. the sandy regosols, the tuffaceous over sandy regosols and the latosolized tuffaceous regosols over podsolized grumusols (Soerianegara 1969).
REHABILITASI LAHAN TERDEGRADASI PASCA PENAMBANGAN TIMAH DI DABO, PULAU SINGKEP: PERTUMBUHAN DAN PENAMPILAN PADI GOGO Robinson Harahap; MH Siagian
BERITA BIOLOGI Vol 7, No 3 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i3.1067

Abstract

Exploitation of natural resources often brings unexpected effects on the enviroment. This is happened in well-known Indonesian mining area of tin i.e. in Singkep Island, Riau Province.The accumulation of tailing as a mining waste, degraded the soil quality both chemical and physical aspects.To restore the degraded (death) land post-mining, biological agents must be introduced, to restore the biological processes within the soil as close as possible to their original conditions pre-mining.Planting rice in post mining land is thought to be one of the step to biologically, restore the quality of post-mining soil. A study of the seven upland rice varieties was conducted at Dabo village, Singkep District, Riau, using Randomized Block Design (RBD), within the scheme of introducing biological agent to post-mining soil.The high varities of upland rice consisted Jatiluhur, Limboto, Maninjau, Ranau,TB154 E.TB-2, Way Rarem and as comparison was local Pacitan variety.The results indicated that the plant heigh appereance of the high varities of upland rice variety was better compared to the local Pacitan variety, but the amount of seedling per bush of the local Pacitan variety was more at 45 and 60 days after planting. The average of panicle length on the high varities of upland rice 2 was 73.34 cm which was longer then the comparing local Pacitan variety. Biomass weight and grains production per m on the high 2 varities of upland rice was heavier than comparing local Pacitan variety. The high production of grain per m were 520 and 510 grams on the TB154 E.TB-2 and Limboto varieties respectively.Among the high variety of upland rice there were high diversities 2on plant height, total seedling per bush, panicle length, biomass weight and grain production per m .There were assumed to be influenced by habitat and genetic factors.The high varities of upland rice were able to grow and produce well on the nutrient poor soil and at low soil pH (4.87).
ADAPTASI DAN KERAGAAN HASIL PADI VARIETAS INPARA DI LAHAN RAWA Koesrini Koesrini
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i3.2933

Abstract

Inpara is a rice variety rice released by the Indonesian Agency for Agricultural Research and Development (IAARD) which is adaptive to swamp land. The research objective was to evaluate the adaptability and yield performanceof Inpara varieties in swamp lands. The field experiment was conducted in tidal swamp lands, in Barito Kuala District and in swampy lands, Hulu Sungai Selatan District of South Kalimantan, during dry season of 2014. The research was arranged in a randomized complete design with three replications. The treatment was 7 Inpara varieties, i.e. Inpara 1, 2, 3, 4, 5, 6, 7 and comparison varieties, i.e Margasari in tidal swamp lands and Ciherang in swampy lands. The result showed that there was a variation adaptation between Inpara varieties in tidal swamp land and swampy lands. Inpara 2 and Inpara 3 varieties showed a good adaptation in tidal swamp lands, had the yield of 4.04 t/ha which an increasing yield was 35.9% higher than Margasari variety. Inpara 1 and Inpara 6 varieties presented a good adaptation in swampy lands that produced 2.118 t/ha and 2.275 t/ha and 1.9% and 9.5%, respectively higher than Ciherang variety. Variety of Inpara is not adaptive in swamp lands.
PEMANFAATAN INOKULAN MIKROBA SEBAGAI PENGKAYA KOMPOS PADA BUDIDAYA SAYURAN Sarjiya Antonius; Maman Rahmansyah; Dwi Agustiyani Muslichah
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1824

Abstract

Microbial existence is due to mineralize organic compound in soil and caused nutrients availability to the plants. In this study, some of microbial inoculants consist of a). Phosphate soluble bacteria (Pseudomonas sp.) collected from soils that intensively utilized agrochemical in its agriculture activities; b). Nitrogen - fixing bacteria Rhizobium leguminosarum; and c) Trichoderma sp. and Aspergillus sp.as organic degradation fungi were used for compost enrichment.These inoculants formulation were utilized to carrots (Daucus carota L.), broccoli (Brassica oleracea L.) and maize (Zea mays L.) cultivation in upland area, Cisarua, Bogor, West Java. This study was aimed to assess inoculants response to enrich fully mature and half ripe compost. Crops response to the inoculation treatment was varied among these commodities. In general, the response of plants with the use of compost enriched biofertilizer was positive, with an increase in yield of about 15- 30% for carrots, broccoli around 65- 90% and about 10% of corn crops. The significant increase in crops production as impact of organic fertilizier application indicated that C organic content of the organic farm of Cimelati and Agato were defisit.

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