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BERITA BIOLOGI

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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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

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.).

LUMUT SEJATI DI HUTAN ALAM PAMEUNGPEUK, TAMAN NASIONAL GUNUNG HALIMUN SALAK, JAWA BARAT [Mosses Pamengpeuk Primary Forest, Mount Halimun Salak Natiolan Park, West Java] Windadri, Florentina Indah
BERITA BIOLOGI Vol 16, No 2 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Halimun Salak National Park is one of the remaining conservation areas left in West Java. Research on diversity of Bryophytes had previously been conducted at Â Halimun Mount, Kendeng Mount and Â the lowland forest surrounding Cikaniki-Citalahab, while this present Â study was aimed to Â record the diversity of mosses at Pameungpeuk primary forest. There were 78 species Â of mosses including in 47 genera and 20 families. Syrrhopodon spiculosus Hook. & Grev. was a dominant species in the research area. Twenty seven species were new record for Halimun Salak National Park, one of which (Rhizogonium lamii Reimers) was a new record for Java and seven species were new record for Indonesia.

PERBANYAKAN TANAMAN BUAH NAGA BERDAGING BUAH MERAH {Hylocereus costaricensis) MELALUI TEKNIK KULTUR JARINGAN Priyono, Priyono
BERITA BIOLOGI Vol 7, No 5 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Hylocereus costaricensis is new important fruit in Indonesia. One of constrain in its development is limitation of planting material.The aim of the research is to study the regeneration H. costaricensis through micro shoot induction of node explants. The experiments were carried out in the Tissue Culture Laboratory of Indonesian Coffee and Cocoa Research Institute. Experiment on microshoots proliferation stage was arranged in a Factorial Completely Randomized Design, with three replications.The first factor was Kinetin concentration consisted of five treatments i.e.: 0, 2.5, 5.0, 7.5 and 10.0 mg/1.The second factor was Indole acetic acid (IAA) concentration consisted of five levels i.e.: 0, 0.25, 0.5, 0.75 and 1 mg/1. Microshoots multiplication stage was arranged in a Factorial Completely Randomized Design,with three replications. The first factor was polyvinyl pyrrolidone (PVP) concentration consisted of six treatments i.e.: 0, 0.25, 0.5, 0.75, 1.0 and 1.25 %. The second factor was Cystein concentration consisted of four treatments i.e.: 0, 25, 50 and 75 mg/1. The microshoots rooting stage the results experiment was laid in a Factorial Completely Randomized Design, with three replications. The first factor was Giberalic acid (GA3) consisted of five treatments i.e.:0, 0.25, 0.5, 0.75 and 1 mg/1. The second factor was Boric acid concentration consisted of four levels i.e.: 0, 50, 100 and 150 mg/1. In the microshoots proliferation stage the results showed that there was interaction between IAA and Kinetin concentration on the microshoots proliferation and the number of shoot per explnat. The best results were obtained from the treatment 0.75 mg/1 IAA + 7.5 mg/1 Kinetin, whereas in this treatment the rate of microshoots proliferation and the number of microshoots perexplant was 50 % and 3.9, respectively. In the microshoots multiplication stage, the results showed that there was interaction between PVP and Cystein concentration. The best results were obtained from the treatment 0.75% PVP + 75 mg/1 Cystein, whereas in this treatment the rate of microshoots multiplication and the number of microshoots per explant was 95% and 6.3, respectively. In the rooting stage, the results showed that there was interaction between GA and Boric acid concentration. The experiment indicated that 0.5 mg/1 GA3 + 100 mg/1 Boric acid showed the best result to stimulate root induction of the in vitro microshoots propagation, whereas in this treatment the percentage of rooted microshoots and the hight of plantlet were 95% and 5.7 Cm, respectively.

KLASIFIKASI VEGETASI GUNUNG ENDUT, TAMAN NASIONAL GUNUNG HALIMUN-SALAK, BANTEN Sambas, EN; Kusmana, C; Prasetyo, LB; Partomihardjo, T
BERITA BIOLOGI Vol 10, No 5 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The research objective is to classify the variety of vegetation types at Mount Endut, Gunung Halimun-Salak National Park. Vegetation sampling was carried out with systematic sampling with random start. Vegetation type at alliance level was determined with vegetation ordination using factor analysis. Four vegetation alliances can be extracted from the ordination. These alliances are Castanopsis acuminatissima-Schima wallichii/Freycinetia javanica (alliance 1); Castanopsis argentea-Dendrocnide stimulans/Schismatoglottis calyptrata (alliance 2); Coffea canephora var. robusta-Quercus lineata/F. javanica( alliance 3) and Paraserianthes falcataria-Coffea canephora var. robusta/Oplismenus compositus (alliance 4). Vegetation alliances form due to their similarity in structure, composition, and physiognomy of vegetation. There are four vegetation associations at alliance 1, i.e. Castanopsis acuminatissima vegetation association, Schima wallichii vegetation association, Garcinia rostrata vegetation association, and Quercus lineata- Eurya acuminata /Freycinetia javanica vegetation association. Alliance 2 has four vegetation associations i.e.Dendrocnide stimulans vegetation association, Coffea canephora var. robusta vegetation association, Castanopsis argentea -Castanopsis acuminatissima vegetation association, and Schismatoglottis calyptrata-Etlingera coccinea vegetation association.There are seven vegetation associations belonging to alliance 3 i.e. Castanopsis acuminatissima vegetation association, Coffea canephora var. robusta vegetation association, Quercus lineata vegetation association, Garcinia rostrata-Schima wallichii vegetation association, Euodia latifolia - Pternandra azurea/Schismatoglottis calyptrata vegetation association, Raphidophora foraminifera vegetation association, and Freycinetia javanica vegetation association. Alliance 4 has five vegetation associations i.e Paraserianthes falcataria vegetation association, Coffea canephora var. robusta vegetation association, Maesopsis eminii/ Erechtites valerianifolia - Clidemia hirta vegetation association, Oplismenus compositus vegetation association, and Clibadium surinamense vegetation association.

CENDAWAN PENYEBAB ABORTUS DALAM ALAT REPRODUKSI SAPI BETINA [Fungi Causing Abortion in Reproductive Track of Cow] Gholib, Djaenudin; Ahmad, Riza Zainuddin
BERITA BIOLOGI Vol 12, No 2 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The study on cases of abortion in cow caused by fungi have never been reported so far in Indonesia. The aim of this research is to get prevalence of cows have not and have aborted, both have reproductive disorder, and health cattles associated with percentage of fungi isolated.The study included both field survey and laboratory examination of samples. The samples of vaginal fluid were collected by using cotton swabs in cow which had suffered abortion or cow had repeated breeding, as well as freeze dried semen for artificial insemination (AI), and also examining the occurrence of abortion in cattle. The samples were collected in Sukabumi and Bandung, and then cultured in Sabouraud Dextrose Agar by stretch method, followed by incubation at 37oC. Number of samples collected consisted of 56 samples of cattle which had suffered from abortion and cow that had reproductive problems; 38 samples as control; five samples of freeze dried semen. There were no cases of abortion observed when field survey was conducted, therefore organ samples were not available for pathological and histophathological examination. Further examination on growth rate of yeast showed 20% of yeast presented in cows with abortion, 17% in cows with reproductive problem and 14% in normal cattle. On the other hand,there were samples that did not show any growth of yeast recorded f rom cows with abortion (15%)cattle with reproductive problem (7%) and normal cows (27%). Meanwhile, only twowith 2 yeast growth observed in semen samples. It was concluded that samples from cattles with reproductive problems (with and without aborted experiences) showed higher number of growth of yeasts compared with normal cow (P<0,05). Freeze dried semen were having risk of contamination by yeasts. There was no different on growth rate of fungi between reproductive problem and with abortion cow (P>0,05).

TINGKAT KUALITAS KAYU EBONI (Diospyros celebica Bakh.) BERDASARKAN KOMPOSISI SERAT GELAP DAN TERANG Sunaryo, Sunaryo
BERITA BIOLOGI Vol 6, No 4 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Di Sela-Sela Laboratorium dan Plot Eksperimen "PRESSURE CHAMBER", ALAT UNTUK MENGUKUR STATUS DAN TATA AIR DALAM TUMBUHAN Naiola, B. P.
BERITA BIOLOGI Vol 5, No 1 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Peran air yang sangat mendasar dan penting dalam tubuh tumbuhan, telah mendorong penelitian-penelitian intensif dalam aspek status air,tata air atau hubungan air-tumbuhan (Plant-Water Relations).Sebagai konsekuensinya, teknik-teknik maupun peralatan ikut dikembangkan untuk mengisi kebutuhan penelitian.Pressure Chamber atau Pressure Bomb merupakan salah satu alat yang khas dan spesifik digunakan dalam studi termaksud di atas.Apa sebenarnya PC, teori dasar dan bagaimana teknik pendekatannya dibahas dalam makalah ini.

SISTEM PENYERBUKAN ALTERNATIF Talinum triangulare Willd.: EFEK PERLAKUAN PENYERBUKAN PAD A AKTIFITAS BUNGA DAN PEMBENTUKAN BUI Rachman, Erlin
BERITA BIOLOGI Vol 9, No 2 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Eight pollination treatments were executed on Talinum triangulare Willd. to observe alternative pollination systems and its effect on some flower activities and seed setting. The treatments can be grouped to autogamy and allogamy or geitonogamy.Flowers simultaneously were treated by the eight treatments day by day for two weeks in a month with three replications.Parameters observed were fruit set, anthesis duration, seed number per capsule and presence of stigmatic curvature. The result showed that the plant species was evidently flexible in pollination systems but the plant was outcrossing species with highest seed number (58.73 Â± 5.95) per capsule and did not show stigmatic lobe curvature. The second and the third highest seed number per capsule were given by natural pollination with or without anther removal and with or without artificial polination (50.5 Â± 2,87 and 49.0 Â± 1) and this treatments also did not showed stigmatic lobe curvature. Articial pollination with or without flower bagging, withor without anther removal and with or without natural pollination generally gave lower seed number per capsule 40.67 Â± 5.69,32.67 Â± 10.95, 43.67 Â± 9.5) except spontan autogamy(49.29 Â± 10.14) and some of this treatments showed sigmatic lobe curvature.Stigmatic lobe curvature, therefore, was occured when no pollen occupation on it until prior to naturally flower reclose. Flower would be abscised when no artificial or natural pollination was happened but its stigma was curved before shed. Primary pollination mechanism in the plant was cross polllination (allogamy) but the plant is enough flexible in pollination systems. Autogamy especially spontan autogamy seem to be alternative pollination mechanism when no natural polinator visit.

KERAGAMAN GENETIKA POPULASI PELAHLAR (Dipterocarpus littoralis (Bl.) Kurz) DIPULAU NUSAKAMBANGAN BERDASARKAN PROFIL ENHANCED RANDOM AMPLIFIED POLYMORPHIC DNA Yulita, Kusumadewi Sri; Partomihardjo, Tukirin
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Dipterocarpus littoralis is a commercial timber species endemic to Nusakambangan island. Their existence is under severe threat due to habitat conversion and illegal logging. This study aimed to assess genetic diversity of this species within and among populations using E-RAPD. Three arbitrary RAPD primers were modified by addition of two nucleotides at their 5 termini.E-RAPD profiles were obtained by performing PCR amplification using the modified primers. Forty-five putative loci of E-RAPD were scored and analysed using POPGENE software. Some of the RAPD bands (OPA 9E-200 and 850 bp) were distinctively found for population 2, thus it served as population diagnostic marker for this population. Genetic diversity within population (0.1540) was higher than that of among populations (0.0418). Genetic differentiation (Gst) indicated that 21.35% of total genetic diversity in D. littoralis was attributed to the differences among populations. The highest genetic diversity was found in population 2(He:0.1923; 1:0.3158), while the lowest genetic variation was observed in population 1 (He: 0.0828; 1: 0.1209). Total genetic diversity for all population (Ht) was 0.1958 with an average value of genetic diversity within populations (Hs) was 0.1540. This fact suggested high level of genetic diversity found on these relic populations.

Enderleinellus kumadai Kaneko 1954 (ANOPLURA: ENDERLEINELLIDAE) PADA BAJING, Callosdurus notatus (RODENTIA: SCIURTOAE) Hartini, Sri
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

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