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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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MEKANISME IMUNOLOGI DARI RESISTENSI DOMBA EKOR TIPIS TERHADAP INFEKSI Fasciola gigantica Wiedosari, Ening
BERITA BIOLOGI Vol 8, No 2 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (716.671 KB) | DOI: 10.14203/beritabiologi.v8i2.2035

Abstract

Previous studies shown that Indonesian Thin-Tailed (ITT) sheep are more resistant to infection than Merino sheep infected with Fasciola gigantica. Eosinophils isolated from ITT sheep between 2-6 weeks postinfection could effectively kill immature parasites in vitro by superoxide radicals produced by these cells. The present study was undertaken to identify immunological mechanisms associated with such resistance by comparison of immue responses to fluke antigen in ITT and Merino sheep, a breed susceptible to infection with F. gigantica. This knowledge will enable the development of targeted control strategies using immunomanipulation such as by vaccination.Two critical observations from this in vivo studies were made including (1) eosinophils were significantly elevated at the time of F. gigantica parasite killing in the ITT host relative to the F. giganfica-susceptible Merino host, (2) IgG, responses correlated with resistance to infection in the ITT host.
PENELITIAN EKOLOGI JENIS POHON DI KAWASAN HUTAN BULUNGAN, KABUPATEN BULUNGAN - KALIMANTAN TIMUR Yusuf, Razali
BERITA BIOLOGI Vol 6, No 6 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i6.1205

Abstract

Studied on species ecology was carried out especiaslly with composition and vegetation structure in mixed dipterocarp forest,Bulungan-East Kalimantan Province.Two sampling plots were set up in 2 selected sites.All trees (dbh>10cm) within each plot were measured, and their height was respectively estimated.The result showed that totally species number from 825 trees at 2 plots recorded 240 species, 127 genera dan 42 families and 33 species among them from family Dipterocarpaceae.That were 22 species meranti (Shorea spp.J, 4 species for kruing {Dipterocarpus caudiferus, D. stellatus, D. humeratus, D. hominophyllum), and some from genus Vatica (Vatica vinosa, V. rasak, V. sarawakensis), Hopea bullatifolia, Dryobalanops lanceolata and Parashorea parvifolia. Dipterocarpaceae,Euphorbiaceae and Myristicaceae were some families with have the most species number and some species were dominance representated the family that were Dipterocarpus caudiferus, Dryobalanops lanceolata,Coccoceras borneensis and Knema latifolia.
TIGA RATUS TAHUN LINNEAUS - SUATU PENGANTAR Sukara, Endang
BERITA BIOLOGI Vol 8, No 4(a) (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.633 KB) | DOI: 10.14203/beritabiologi.v8i4(a).1533

Abstract

Three hundred years ago, a Sweden expert, Carl von Linne had laid down a very basic and strong foundation in naming all the living organisms on earth.Supposedly, without the brilliant effort of Carl von Linn6, nowadays, there may have any chaos among people around the world in naming all the living creatures, because everyone would have given the name to those organisms, due to their own sense; thus a kind species may have thousands of name. If this is happen, then all the information regarding the species (including its benefit to mankind) may have no meaning at all. All people would have spoken about a species differently, without realize that they actually regarding about the same species.The center of references such as Herbarium Bogoriense and Museum Zoologicum Bogoriense may be not existed without the work and service of Carolus Linnaeus. No one nowadays arguing the great service of Carolus Linnaeus in naming of each living organisms based on binomial nomenclature.
EFFECTS OFRHIZOBIAL INOCULATION ON THE EARLY GROWTH OF Acacia mangium IN THE FIELD [Pengaruh Inokulasi Rhizobium terhadap Pertumbuhan Awal Acacia mangium di Lapangan] Imelda, M; Erlyandari, F; Sukiman, H
BERITA BIOLOGI Vol 8, No 1 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.766 KB) | DOI: 10.14203/beritabiologi.v8i1.818

Abstract

Dalam rangka mendukung program pemerintah dalam mengembangkan Hutan Tanaman Industri (HTI), bibit tanaman hutan berkualitas tinggi dibutuhkan dalam jumlah besar dan berkesinambungan. Untuk tujuan tersebut, 2 isolat Rhizobium terpilih diuji kemampuannya dalam meningkatkan pertumbuhan dan mengefisiensikan pemupukan N pada tanaman Acacia mangium yang berasal dari kultur jaringan atau dari benih. Isolat yang kepadatannya 10 sel/ml diinokulasikan ke dalam planlet in vitro dan bibit A.mangium asal biji (masing-masing 30 tanaman).Tanaman yang telah diinokulasi, ditumbuhkan dalam polibag sampai cukup kuat untuk ditanam di lapangan. Percobaan disusun dalam Rancangan Split Plot dengan 3 ulangan. Asal bibit yaitu kultur jaringan dan benih digunakan sebagai main plot sedangkan dosis pemupukan urea (n0 = 0; n, = 7.5; n: = 7.5; n2 = 15, n, = 22,5; n4 = 30 g/ tanaman) sebagai subplot. Pengamatan yang dilakukan 12 minggu setelah tanam menunjukkan bahwa pertumbuhan kedua jenis bibit tersebut sangat baik meskipun bibit hasil kultur jaringan tumbuh lebih cepat dan lebih seragam.Namun tidak terdapat perbedaan yang nyata pada pertambahan tinggi tanaman, diameter batang dan jumlah cabang antar semua dosis urea yang dipakai berdasarkan uji LSD pada level 5 %.Hasil tersebut menunjukkan bahwa simbiosis antar A. mangium dan rhizobium cukup efektif dalam meningkatkan pertumbuhan tanaman selama 3 bulan pertama di lapangan tidak ada perbedaan yang jelas antar tanaman yang diberi dan tanpa pupuk N.
BIOPRODUKSI (+)-EPIEPOKSIDON OLEH JAMUR ENDOFIT Diaporthe sp. E YANG DIISOLASI DARI TANAMAN TEH Agusta, Andria
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.v8i3.798

Abstract

Six kinds of the endophytic fungi have been isolated from a tea plant. One of them identified as Diaporthe sp. E based on their morphological characters and rDNA sequens. By the cultivation in liquid medium, the endophytic fungus produced (+)-epiepoxydon besides gentisyl alcohol and toluquinol.
DISTRIBUSI INFEKSI PENYAKIT WHITE SYNDROMES DAN KARANG MEMUTIH (CORAL BLEACHING) PADA KOMUNITAS KARANG KERAS DIPULAU PETONDAN TIMUR, KEPULAUAN SERIBU Yusri, Safran; Estradivari, Estradivari
BERITA BIOLOGI Vol 8, No 4 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i4.2112

Abstract

Currently, there are few information regarding the infection of diseases to corals in Seribu Islands, DKI Jakarta, Indonesia, eventhough scientists have suspected that coral diseases and coral bleaching event would occur in the area due to the pollution from Jakarta. In April 17 - 22 2006, a survey was done in Petondan Timur as a response of oil spill incident in the previous month. Results show that 3.9% of coral colony from 16 genera were infected with white syndromes (WS), with 2,1% bleached. This is a shocking result because no infection were found in February 2006.Acroporids and Pocilloporids were the most affected with WS. The infection also occurs more in the shallow area (3 m).It also seems that the infection correlates with coral bleaching.This phenomenon is suggested to happen due to the combination of oil spill incident and seasonal transition.
PENGARUH UREA DAN AZOLLA SEBAGAI TANAMAN PENUTUP PADA BUDIDAYA PADI SAWAH TANAH BERKAPUR DI SEKITAR KUPANG, TIMOR, NTT Tamad, Tamad
BERITA BIOLOGI Vol 6, No 3 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (322.396 KB) | DOI: 10.14203/beritabiologi.v6i3.1226

Abstract

The ammonia volatilization from lime soil is a very important factor of N-urea losses. Ammonia volatilization from lime soil is very high due to high buffering capacity and basalt pH of the soil. However, urea is commonly used by farmeru as N-source fertilizer on paddy field. One alternitive is Azolla as cover crop can be used to reduce ammonia volatilization from urea. Azolla as cover crop significantly reduced the pH of flodded water, increased tillers and yield up to 66%. Highest tillers production and yield occurred in the treatment of 250 kgs/ha urea, with yield 5.73 tons/ha of paddy seeds.
VEGETATION OF FRESH WATER SWAMPY AREAS IN WEST AND CENTRAL KALIMANTAN Suzuki, Eizi; Kohyama, Takashi; Simbolon, Herwint
BERITA BIOLOGI Vol 5, No 3 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.707 KB) | DOI: 10.14203/beritabiologi.v5i3.1109

Abstract

Vegetation types in fresh water swampy areas: Mandor in West Kalimantan and Lahei in Central Kalimantan, were compared.There were three types: kerangas, kerangas shrub and peat swamp forest. Kerangas forests in both areas had similar flora in some extent.That of peat swamp was very different from kerangas though both vegetations distributed in adjacent area.
KAJIAN PARASITISME TUMBUHAN CENDANA (Santalum album L.) SEBAGAI DASAR DALAM PEMBUDIDAYAANNYA Sunaryo, Sunaryo; Saefudin, Saefudin
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.v5i5.1465

Abstract

Cendana {Santalum album L.)merupakan tumbuhan yang termasuk dalam kelompok suku Santalaceae. Sebagai anggota kelompok tumbuhan parasit, pada fase pertumbuhannya cendana memerlukan interaksi dengan tumbuhan lain yang berfungsi sebagai inang, melalui alat-alat kontak yang disebut haustorium. Sistem perakaran cendana, di mana padanya haustoria berkembang, lebih didominasi oleh pertumbuhan horizontal. Jenis tanaman inangnya tidak spesifik, sehingga pemilihan jenis tanaman inang untuk cendana dapat disesuaikan dengan model-model yang akan dikembangkan yaitu model agroforestri atau konservasi.
STATUS DAN STRATEGI PEMULIAAN POHON EBONI (Diospyros celebica Bakh.) Santoso, Budi
BERITA BIOLOGI Vol 6, No 2 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i2.1499

Abstract

Sejak tahun 1990 eboni telah dinyatakan sebagai jenis kayu yang terkena larangan tebang dan dilindungi.Sebagai tindak lanjut, peraturan itu diberlakukan pada Hak Pengusahaan Hutan agar tidak lagi menebang pohon secara serampangan serta mewajibkan penanaman pada areal-areal bekas tebangan.Semakin terbatasnya pohon eboni di hutan alam dikhawatirkan basis genetika dari jenis ini akan menyempit, sehingga menyulitkan pekerjaan pemuliaannya. Kegiatan pemuliaan tanaman eboni masih sangat terbatas.Balai Penelitian Kehutanan Ujung Pandang merintis dengan melakukan konservasi ex-situ_eboni dan uji keturunan.Fakultas Kehutanan Universitas Gadjah Mada melakukan penelitian uji keturunan dan uji provenansi.Di Sulawesi Tengah sebagai pusat eboni, kegiatan pemuliaan tanaman ini baru dilakukan pada tahap awal dengan kegiatan pemilihan pohon induk. Agar program pemuliaan pohon eboni dapat terarah dengan baik, sehingga tujuan dari program pemuliaan yang diinginkan dapat tercapai diperlukan strategi pemuliaan yang benar.Untuk mengelola program pemuliaan dengan kendala waktu dan sumber daya yang tersedia diperlukan suatu system yang efisien dan yang memperhatikan berbagai kepentingan.

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