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BERITA BIOLOGI

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Published by Lembaga Ilmu Pengetahuan Indonesia

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Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Articles 2,125 Documents

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KERAGAMAN MAMALIA DISEKITAR DAERAH PENYANGGA TAMAN NASIONAL GUNUNG HALIMUN, KECAMATAN CIPANAS, KABUPATEN LEBAK Suyanto, Agustinus; Semiadi, Gono
BERITA BIOLOGI Vol 7, No 1&2 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The fieldworks for inventory and collection on mammals in Gunung Halimun National Park (OHNP) had been carried out for long time; however the works only focused on the areas belong to Bogor District. Therefore, the fieldwork was carried out in the buffer zone of the GHNP in Lebak District.The fieldwork had collected 70 numbers consisted of 16 species of mammals, of which five species were new records for GHNP and of those five species, two species (Glischropus javanus and Myotis sp.)were new collection for the Museum Zoologicum Bogoriense-Research Center for Biology-The Indonesian Institute of Sciences (LIPI).The Baduy people were noticed to hunt fruit-bats from some caves for their food.It was suggested a monitoring activity on the utilization of fruit-bats should be conducted for the conservation of the fruit-bats.Further fieldwork outside the Bogor District in the future should also be considered, particularly on the area along the river.

PERAN TUMBUHAN DALAM KEHIDUPAN TRADISIONAL MASYARAKAT LOKAL DI TAMAN NASIONAL GUNUNG HALIMUN JAWA BARAT Rahayu, Mulyati; Harada, Kazuhiro
BERITA BIOLOGI Vol 7, No 1&2 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Indigenous people who live in Gunung Halimun National Park (GHNP) rely their on their traditional life natural resources around them.The ethnobotanical research had been conducted in three villages surrounding GHNP.This research including indigenous knowledge in using plants for their daily life such as for food, medicine, fuel, ritual need etc. Most of the plants can be found wildly.Over harvesting of those wild plant might affect the sustanability the national park. Therefore, the environmental education for indigenous people is needed.

300 TAHUN LINNAEUS: PANDANACEAE, LINNAEUS DAN KONEKSI SWEDIA Keim, Ary Prihardhyanto
BERITA BIOLOGI Vol 8, No 4(a) (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Pandanaceae is one of the three large and important families within the Monocotyledoneaie consisting of approximately 900 species found only in the Old World Tropics. Malesia is the region of importance for the fanmyfwhere the prominent diversity and the three principal genera (Freycinetia, Pandanus, and Sararanga) are found.Pandanaceae is also an important family of the Monocotyledoneae in the Malayo-Austronesian and^elanesian cultures.The usage of pannans in the Melanesian culture is more diverse and incorporating more number of species. Although pandan was first described by the two distinguish Dutch naturalists, Rumphius and Rheede tot Drakenstein, the introduction of pandan into the world of Botany was started and in the early stage also involved Swedish botanists, from Linnaeus to Fagerlind. Linnaeus still suggested Pandanus as a possibly member of Bromelliaceae. Linnaeus Jr. placed it as a genus of its own, Pandanus, thus laid the firm foundation for the classification of the genus and the entire family.The information on Pandanaceae encompassing morphology to history is described in this paper, including the significance of the family in relation with the Agenda 21.

AKTIVITAS ANTIMIKROBA FLAVONOID - GLIKOSIDA HASIL SINTESIS SECARA TRANSGLIKOSILASI ENZIMATIK Soeka, Yati Sudaryati; Naiola, Elidar; Sulistyo, Joko; Joko Sulistyo
BERITA BIOLOGI Vol 8, No 6 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Flavonoid-glycoside was synthesized enzymatically using CGT-ase (EC.2.4.1.19) of indigenous Bacillus licheniformis in a phosphate buffer pH 6.0 at 45Â°C for 24 h, through transglycosylation reaction in the present of flavonoid those were extracted from rhizomes such as ginger, flngerroot, turmeric, white turmeric and white curcuma as natural acceptors, and commercial rice,cassava, corn and wheat flour as substrates.The result showed that CGT-ase of B. licheniformis transferred a glycosyl moiety in a bilayer enzymatic reaction system of n-hexanol and phosphate buffer yielding glycosides as transfer products in the present of wheat flour as substrate and white curcuma extract as its acceptor.An inhibitory effects of the synthesized flavonoid glycosides against microbial growth was furthermore examined. It was found that flavonoid-glycoside, as the transfer product, exhibited high antimicrobial activity at MIC 200 ppm on the growth of Bacillus subtilis, Escherichia coli and Saccharomyces cerevisiae, however no effect when it was assayed on Candida tropicalis, while arbutin and flavonoid-aglycon showed very low inhibitory activity on the growth of two out of four tested microbial strains.

DETEKSI Pseudomonas syringae pv. glycinea (PSG) MENGGUNAKAN ANTIBODIPOLIKLONAL DAN NCM-ELISA Suryadi, Y; Machmud, M
BERITA BIOLOGI Vol 8, No 1 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Soybean bacterial blight is an important disease of the soybean crop. Since resistant cultivars are lacking, the disease is difficult to control, hence early detection and proper diagnosis as well as good knowledge on epiphytotic of the disease are important aspects for successful disease control.A serological technique, particularly the Enzyme-linked Immunosorbent Assay (ELISA) is an effective technique for detection and identification of plant pathogens. The objective of the research was to obtain polyclonal antibodies (PAbs) and use of NCM-ELISA for detection PSG. Soybean plant samples showing symptoms of soybean bacterial blight were collected from the fields and used for antigen sources. Isolation and production of PSG antigen was done using Kings B Agar medium. Immunizations of white New Zealand rabbits were done to produce antibodies to PSG. Yield of PAb-PSG was indicated by antisera titers ranging from 160 to 1280. Intravenous immunization produced more titer than that of intramuscularly. NCM-ELISA was used for detection of PSG from plant samples. It was applicable for detection of PSG from plant samples in relatively short time and limit detection of 10" cfu/ml.

AKAR PENYEBAB DEFORESTASI DI SEKITAR SUNGAI PEMERIHAN PERBATASAN TAMAN NASIONAL BUKIT BARISAN SELATAN, LAMPUNGBARAT Suyadi, Suyadi; Gaveau, David Luc Andre
BERITA BIOLOGI Vol 8, No 4 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The destruction of lowland tropical forests represents one of the greatest threats to biodiversity in Sumatras third-largest protected area, the Bukit Barisan Selatan National Park (BBSNP). Here, we integrate time-series satellite and socio-economic information in a Geographic Information System (GIS) to unravel the root causes of deforestation in two encroachments(Cawangaro and Sumbersari) near Pemerihan River bordering BBSNP.Cawangaro was originally developed as an enclave in 1965.Sumbersari remained forested until 1978.Both encroachments experienced higher deforestation rates during the late 1970s and in 2005. Our GIS combined with historical records show that large-scale logging, high coffee price and village development plans (perluasan lahan usahatani penduduk) drove deforestation during late 1970s. Throughout the 1980s and until 1997/1998, deforestation rates have been negligible as strong law enforcement measures were adopted by the Government to protect biodiversity during the implementation of Indonesias first land-use plan (TGHK). Since the 1997-1998 Asian economic crisis, deforestation rates have increased again. Results from socio-economic surveys showed that illegal logging has become one major factor driving agricultural encroachments in Pemerihan since 1998. Local tycoons have exploited the parks timber since Suhartos fall, probably due to the decline of law and order. While timber extraction itself has caused very limited damage to the forest, this illegal activity sparked a land race among farmers inside the park.

KHARAKTERISASI ENZIM KASAR GLUKOAMILASE DARI Saccharomycopsis sp. Naiola, Elidar
BERITA BIOLOGI Vol 8, No 3 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Saccharomycopsis sp. produced glucoamylase (a-1,4 glucanglucohydrolase; EC 3.2.1.3) shown by the presence of clear zone on media containing 0.2% yeast extract, 0.5% pepton, 0.3% KH2PO4, 0.05% MgSO4. 7H2O, 0.01% CaClr2H2O, 2% agar and 2% soluble starch. In liquid media containing soluble starch glucoamylase production reached a maximum at 2 days fermentation, with levels of 4.2 x 10 U/ml (one unit activity is define as micromoles of glucose produce per ml per minute).Studies on the glucoamylase characterization revealed that the optimum temperature for activity was 40Â°C - 50Â°C. The enzyme was stable for lh at 45"C - 55Â°C, while at 60Â°C to 65Â°C, 40% of the original activities were lost. The optimum pH of the enzyme was 6.0. After incubation of crude enzyme solution for 1 h at pH 8.0, a decrease of about 40% of its original activity was observed. Saccharomycopsis sp. produced high glucoamylase when it was grown in media containing rice flour as carbon source with the glucoamylase activity at 9,28 x 10 U/ml.

EKOLOGI CAPUNG JARUM CALOPTERYGIDAE: Neurobasis chinensis DAN Vestalis luctuosa DI SUNGAI CIKANIKI, TAMAN NASIONAL GUNUNG HALIMUN Aswari, Pudji
BERITA BIOLOGI Vol 7, No 1&2 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Studies on ecological aspects of two species of damselflies, Neurobasis chinensis and Vestalis luctuosa (Odonata:Calopterygidae) were conducted at Cikaniki stream, Taman Nasional Gunung Halimun (TNGH).The two species of damselflies were selected from 26 species of dragonflies that have been collected in the study area.Selection was based on their appearance which is big in size, metallic colour are conspicuous and also on the habitat specificity.

KEANEKARAGAMAN JENIS Nepenthes (KANTONG SEMAR) DATARAN RENDAH DI KALIMANTAN TENGAH Mansur, Muhammad
BERITA BIOLOGI Vol 8, No 5 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Diversity on the lowland pitcher plants (Nepenthes spp.) in Central Kalimantan were conducted between August 2005 and September 2006 at three locations study. That is: Barito Ulu, Sebangau and Kasongan district. Survey inventories were used to determine the diversity of Nepenthes at the study site. We found sixteen Nepenthes at study area, divided nine Nepenthes species; N. albomarginata, N. ampullaria, N. gracilis, N. hirsuta, N. mirabilis, N. rafflesiana, N. reinwardtiana, N. stenophylla, one unidentified Nepenthes species and seven natural hybrid; N. xhookeriana (N. rafflesiana x N. ampullaria), N. xtrichocarpa (N. gracilis x N. ampullaria), N. xneglecta (N. gracilis x N. mirabilis), N. mirabilis x ampullaria, N. mirabilis x rafflesiana, N. reinwardtiana x N. mirabilis and N. reinwardtiana x gracilis. Heath forest and peat swamp forest are generaly the habitat of lowland Nepenthes at Central Kalimantan.

PENGAMATAN INFEKSI JAMUR PATOGEN SERANGGA Metarhizium anisopliae (Metsch. Sorokin) PADA WERENG COKLAT Suryadi, Y; Kadir, Triny S
BERITA BIOLOGI Vol 8, No 6 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Observation on infection of fungus entomopathogen Metarhizium anisopliae on insect brown plant hopper was carried out using scanning electron microscope (SEM).The infection of M. anisopliae on insect bodies was shown by conidia sporulation on divergent chain with conidia size of 1.6 x 7.8 urn. Based upon SEM observation, the results revealed that fungus hyphae of M.anisopliae was found on insect body i.e. on cuticle as well as on segment between abdomen, legs and insect facet eyes.In epizootic condition, the cadavers were shown can act as source of fungus dissemination on healthy insect when environment (temperature and humidity) was suitable for primary infection.

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