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Articles 2,101 Documents
PENENTUAN STATUS MUTU AIR DENGAN METODE STORET DIDANAU SENTANI JAYAPURA PROPINSI PAPUA Walukow, Auldry F
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/bb.v10i3.742

Abstract

The problem in Lake Sentani area are degradation of watershead and land forest convertion, which cause decreasing water quality in Sentani Lake. For this reason, it is very important to analyze of water quality status in L. Sentani periodically in order to retain its sustainability. The analyzed result by using STORET method showed the quality statue of L.Sentani are ranged from moderate to heavy pollution in category since 2006.
INDUKSI KALUS DAN EMBRIOGENESIS SOMATIK IN VITRO PADA LAMTORO (Leucaena leucocephala) Soetrisno, Djoko; Sapsuha, Yusri; Kustantinah, Kustantinah
BERITA BIOLOGI Vol 10, No 5 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1729.405 KB) | DOI: 10.14203/bb.v10i5.1921

Abstract

This research is aimed to determine the effect of various concentrations (0, 1, 2, 3, 4 and 5 mg/l) of 2,4-D (dichloropenoxy acetic acid) on callus induction of Lamtoro (Leucaena leucocephala) and its somatic embryogenesis stimulated using different concentrations of 0, 0.5, 1.0, 1.5 and 2.0 mg/l of growth regulators, namely NAA (Naphthaleneacetic acid) and kinetin. Percentage of callus were measured and somatic embryogenesis from callus were subjected to description analysis. The results showed that callus percentage were varied from 29.34% (1 mg 2,4-D/l) at first week (white color and crumb) to 83.67% (4 mg 2,4-D/l) at fourth week (white yellowish color and compact), and embryo somatic varied from 19.33±2.52 (2 mg NAA and 0 mg kinetin/l) to 81.33±11.50 (1.5 mg NAA dan 2.0 mg kinetin/l). It can be concluded that optimum callus induction (83.67%) was recorded when concentration of 2,4-D was given at the rate of 4 mg/l. The largest number of embryos in concentration of 1.5 mg/l NAA and 2.0 mg/l kinetin, and embryo somatic 81.33±11.50.
IDENTIFIKASI Lernaea sp. YANG MENGINFEKSI IKAN ARWANA IRIAN {{Scleropagesjardinii (Saville-Kent, 1892)} DI MERAUKE, JAKARTA, BOGOR DAN DEPOK Nurcahyo, Wisnu; Imamudin, Kurniasih; Shatrie, Dikry N; Triyanto, Triyanto
BERITA BIOLOGI Vol 10, No 6 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1085.437 KB) | DOI: 10.14203/bb.v10i6.1950

Abstract

Lemaea spp. is very important fish ectoparasites because it spreads all over the world and its economic importance has increased due to numerous epizootics occurrence among the most important farmed fish; and has wide host range. Lemaea sp. has been infected not only the family Cyprinidae and Characidae but also in Osteoglossidae family, such as Red Arwana [Scleropagesformosus) in Malaysia and Arwana fish {Scleropagesjardinii (Saville-Kent, 1892)) in Irian.The objective of this study was to identity Lernaea sp. often attacked Arwana irian fish as a precautionary measure the spread of infection, especially on Arwana irian fish. Arwana irian fish were collected from Merauke, Jakarta, Bogor and Depok, 10 infected fish per area. Found Lernaea sp. fixed in glutaraldehyde for morphology study. Based on morphological charactheristic, there were six different Lemaea sp. attacked Arwana irian fish. They are Lemaea cyprinacea, L. devastatrix, L. lophiara, L.oryzophila, L. papuensis and Lemaea n sp. Lemaea n sp. was considered as a new species due to different variation of holdfast organ.
ANALISIS RAGAM GENOTIP RAPD DAN FENOTIP TRUSS MORFOMETRIK PADA TIGA POPULASI IKAN GABUS [Channastriata(Bloch, 1793)] [Analysis of Genotype Variation and Truss Morphometricof Three Populations of Snakehead Fish [Channa striata (Bloch, 1793)] Gustiano, Rudhy; Oktaviani, Tia; Soelistyowati, Dinar Tri; Kusmini, Irin Iriana; Wahyutomo, Wahyutomo; Huwoyon, Gleni Hasan
BERITA BIOLOGI Vol 12, No 3 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (629.515 KB) | DOI: 10.14203/bb.v12i3.641

Abstract

In order to manage genetic resources for aquaculture development of snakehead fishChannastriata(Bloch, 1793), genetic variability of three populations from different geographical areas is needed to be understood. The purpose of this study was to identify the genotype and fenotype of snakehead fish from Jawa, Sumatera and Kalimantan using RAPD and “Truss” morphometric. RAPD method used OPA-02, OPA-04 and OPA-07 primers.While twenty one measurement of truss morphometric was done on the body of fish observed. The results showed that population from Java had higher percentage of polymorphism and heterozygosity than those of Sumatera and Kalimantan, accounted for 83.33% and 0.3655 respectively. Population from Kalimantan and Sumatera had the lowest genetic distance of 0.1170.Meanwhile,the highest genetic distance (0.1908) was observed between population from Kalimantan and Java.Interpopulation relation based on the similarity of truss morphometric population from Sumatera and Kalimantan was 50%. However, those populations had similarity of 24.96% with population from Java. Coefficient variation of morphometric data showed that variation of population from Kalimantan was higher than those of Jawa and Sumatera.
PENELITIAN NYALI DI TAMAN NASIONAL GUNUNG GEDE PANGRANGO DAN TAMAN NASIONAL GUNUNG HALIMUN SALAK, JAWA BARAT, INDONESIA [Research on gall in Mount Gede Pangrango and Mount Halimun Salak National Parks, West Java, Indonesia] Sunaryo, Sunaryo; Tihurua, Eka Fatmawati; Rachman, Erlin
BERITA BIOLOGI Vol 13, No 1 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (555.368 KB) | DOI: 10.14203/bb.v13i1.652

Abstract

Research on gall (including field and laboratory observations and field collecting) have been conducted in the Mounts Gede Pangrano (MGPNP) and Halimun Salak National Parks (MHSNP). This research focused on gall shapes, host plant species, and parts of the host plants infected by galls. The result showed that there were 169 gall numbers in MGNP and 127 numbers in MHSNP have been collected. Distribution of plant species infected by the galls were rather same in the both conservation areas. In MHSNP seven families mostly infected by galls: Araceae, 4 species of 5 gall numbers collection in the family (=4/5), Elaeocarpaceae (5/5), Euphorbiaceae (7/9), Lauraceae (8/11), Moraceae (6/7), Melastomataceae (4/4) and Rubiaceae (9/12). In MGPNP the composition is only fairly different: Araliaceae (4/6),Euphorbiaceae (8/13), Lauraceae (9/12), Melastomataceae (5/6), Moraceae (13/22), Myrtaceae (9/11) and Rubiaceae (6/13). At least 23 gall shapes were found in both locations. The most common shape of galls found in MGNP was irregular, while in MHSNP was globular.Galls were mostly (90%) collected from leaf including peduncles and leaf venations. The other parts included twigs, branches, stems, flowers,and fruits. The most common insect found investing galls (i.e. insect gallers) was the midges (54.4%) followed by mites (18.5%), psyllids (11.1%), thrips (6.3%), coccids (1.9%), and aleurodes (1.9%).
ANATOMI DAUN DAN TAKSONOMI JENIS-JENIS VANDA ZAINUDDIN, HARDANIAH; RIFAI, MIEN A.
BERITA BIOLOGI Vol 2, No 9&10 (1984)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (252.226 KB) | DOI: 10.14203/bb.v2i9&10.1415

Abstract

Salah satu marga anggrek yang penting dari segi hortikultura ialah Vanda R. Br. Marga ini mempunyai anggota kiia-kira 60 jenis yang tersebar luas mulai dari India. Asia Tenggara sampai ke Papua Nugini. Berdasaikan bentuk daunnya Vanda dap at dibedakan dalam dua kelompok. Yang pertama adalah kelompok Vanda pensil, memiliki daun yang berbentuk tabling seperti pensil, penampang melintang daunnya bundar (contoh : Vanda hookerana Rchb.f., Vanda teres (Roxb.) Lindl. dan Vanda tricuspidata J.J.S. Kelompok kedua disebut Vanda sabuk, mempunyai daun lebai yang memanjang seperti sabuk dan penampang melintang daunnya sepertikupu-kupu atauburung terbang (contoh: Vanda helvola BL, Vanda dearii Rchb.f., Vanda insignis BL, Vanda sumatrana Schlt., Vanda limbata BL Vanda suavis Rchb.f., Vanda celebica Rolfe dan Vanda tricolor Lindl.).
KAJIAN KARAKTERISTK GENETIK RUSA TIMOR (Cervus timorensis timorensis Blanville, 1822) ( Study on Characteristic of Genetic of the Timor Deer (Cervus timorensis timorensis) Solihin, Dedy D; Surjobroto, Bambang; Zein, M Syamsul Arifin; Prijono, Siti N
BERITA BIOLOGI Vol 4, No 4 (1998)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (599.854 KB) | DOI: 10.14203/bb.v4i4.1261

Abstract

A study on characteristic of genetic of the Timor deer (Cervus timorensis timorensis)was conducted during the periode of June - November 1997.Twenty four blood samples from Timor, Semau, Pantar, and Alor Island,Nusa Tenggara Timur Province were examined for this study.Restriction site analysis of part of ribosomeRNA mitochondrial DNA (447 bp),using restriction endonucleasis Haelll and Mbol showed that there were two haplotype variation.
BEBERAPA CATATAN TENTANG ASPEK PERTUMBUHAN, MAKAN DAN REPRODUKSIIKAN NILEM PAITAN (Osteochilus jeruk Hadiaty & Siebert, 1998) Hadiaty, Renny Kurnia
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.601 KB) | DOI: 10.14203/bb.v5i2.1135

Abstract

Osteochilus jeruk is one of the two new species of Osteochilus occuring in Gunung Leuser National Park, Aceh, Sumatra, Indonesia.It has a big size and beautiful colour, so it is potential as food and aquarium fish. Notes on growth, food and reproduction were examined as base for the culture of this fish.
ISOLASI, SELEKSI, DAN KARAKTERISASI MIKROBA PENDEGRADASI ASETONITRIL DARI LIMBAH INDUSTRI Sulistinah, Nunik; Tambunan, Usman Sumo F; Adityarini, Adityarini; Sunarko, Bambang
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.61 KB) | DOI: 10.14203/bb.v5i2.1151

Abstract

A number of microbes which could grow on acetonitrile were isolated and selected from industrial effluents and were studied to characterise the isolate which has the best degrading capability.Cultures were grown on mineral medium with microelements and acetonitrile was added as sole source of energy, carbon, and nitrogen.Isolate D5, identified as Corynebacteriumsp.,was able to grow on high concentration acetonitrile (up to 5 % v/v) and exhibited the highest specific growth rate (j).When Corynebacterium D5 grew on 2 % (v/v) acetonitrile,the doubling time was 6 hours 40 minutes,the specific growth rate (p) was 0.1 h and the acetonitrile decreasing rate was 3.99 mM/h.Increasing of acetonitrile concentration would extend the doubling time, decline the maximum growth and specific growth rate (i), and biomass production of Corynebacterium 05.The products of acetonitrile degradation by Corynebacterium D5 were acetamide, acetic acid, and ammonia.The maximum growth of Corynebacterium D5 showed when /3-aminopropionitrile was used as a substrate.
HAPTOTROPISME PADA POLA SERANG PARASIT TALIPUTRI {Cuscuta campestris Yunck.) [Haptotropism on the Attack Patterns of Dodder {Cuscuta campestris Yunck.)] Sunaryo, Sunaryo
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/bb.v5i2.1155

Abstract

Field dodder fCuscuta campestris Yunck.)is an obligate parasite plant (holoparasit) with twining stems that coil and fasten to host plants.The qualitative and quantitative studies were tested to 20 twining stems pieces, that infected on host plants (Durantha sp.).The results showed that the twining stems are very sensitive and responsive to the contact of host canopy, but it is not for grasses (Poaceae).A single piece has been found to grow at rate of more than 1 centimetres per day. The ability and speed of reaction of the twining stems by the contact stimulating to their host (haptotropism) were discussed.

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