Judul: Diversitas Lumut Epifit di Tiga Perkebunan Teh Jawa Barat
Abstrak: Study on the epiphytic bryophytes was conducted at three tea plantations located at different elevation in West Java: Gunung Mas (600 m) Bogor, Nirmala (1150 m) Sukabumi, Rancabali (1628 m) Bandung. Three plots were established within each tea plantation, three transects of 30 m were lined in each plot. Samples were collected from the trunk and primary branches of five tea trees in each line transect. The aims of this study were to record the epiphytic bryophytes species of the plantations and to compare diversity of the bryophytes community among the plantations. Ninety species of epiphytic bryophytes were recorded. Checklist of those species were provided in this paper. The bryophytes species richness of the plantations increased with increasing of the elevation. Twenty seven species were found at Gunung Mas, 40 species at Nirmala, and 74 species at Rancabali. The plantations were dominated by different species. The dominant species were Sematophyllum tristiculum (mosses) at Gunung Mas, Lejeunea anisophylla (liverworts) at Nirmala, and Acanthocoleus javanicus (liverworts) at Rancabali. The species composition of the bryophytes communities of Gunung Mas was more similar to that of Nirmala compared to that of Rancabali.
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Judul: Keanekaragaman Lumut Epifit pada Gymnospermae di Kebun Raya Bogor
Abstrak: Researchs on diversity of epiphytic bryophytes are more common observed on Angiospermae than those on Gymnospermae. Bogor Botanical Garden (BBG) is an ex-situ conservation in which the sample plants are collected around the world for conservation purpose. Trees in the Botanical Garden provide substrats for epiphytic bryophytes. The temperature and humidity in the Botanical Gardens were the optimum range for the bryophyte growth. The aim of this research was to observe diversity of epiphytic bryophytes on Gymnospermae in BBG. The bryophyte samples were collected from Gymnosperm trees in Blok I which is Cycadaceae familly and those in Blok II which are the familly of Pinaceae, Araucariaceae, Gnetaceae, dan Podocarpaceae. Only the trees have ≥ 20 cm (dbh) of trunk base were sampled. Bryophytes were collected from the trunk base at 0-200 cm above the ground, at four cardinal direction (north, south, west, and east). In total 18 species of epiphytic bryophytes were found, included 12 genera and 7 families. The family which had the highest number of species was Lejeuneaceae. The most common species on Gymnosperm trees in the Botanical Garden were Lejeunea tuberculosa and Octoblepharum albidum. Both of them were found at 6 trees of 13 total tree samples. The species were found more frequently at west (2,1%) and north (1,8%) part than east and south part of the host trees. They more frequently inhabit the trunk base on 0-100 cm than 100-200 cm. Key words: Bogor Botanical Garden, diversity, epiphyte bryophyte, Gymnospermae.
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Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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