Judul: Karakter Pertumbuhan Akar sebagai Parameter Toleransi Tanaman Padi terhadap Cekaman Aluminium
Abstrak: The improvement of rice productivity in acid soils could be achieved by utilizing Aluminum (Al)-tolerant rice varieties. The objective of this study was to obtain root growth characters of rice seedling that can be used as an Al-tolerance parameter in rice. The study evaluated three root growth characters, which were Root Re-growth (RRG), Root Elongation (PPA), and Relative Root Length (PAR), in three Al-sensitive (Ciherang, IR64, and Situbagendit) and an Al-tolerant rice varieties (Hawara Bunar). Those four varieties were grown in minimal nutrient solution with and without the addition of 15 ppm Al. The RRG test showed inconsistency between the relative RRG and the nature of Al-tolerance character of the tested rice suggesting the RRG character was not appropriate rice tolerance paramater. Analyses of PPA and PAR showed a consistency between PPA and PAR pattern indicating that both charaters could be used as Altolerance parameter in rice. Haematoxyline root staining showed the presence of Al in cortex and epidermis root tip cell higher in Al-sensitive rice than that of Al-tolerant rice.
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Judul: Eksplorasi Marka Mikrosatelit yang Terkait dengan Sifat Toleransi Keracunan Aluminium pada Padi
Abstrak: Acid soils limited agricultural productivity around the world because of the high solubility of aluminum (Al). The objective of this study was to find gene location of Al tolerant trait in rice chromosome from crossed between Cabacu and IR64. One way to found gene location of Al tolerant was by using phenotype analysis and molecular marker microsatellite or SSR (Simple Sequence Repeats). Markers with a specific character could be selected using Bulk Segregant Analysis (BSA). Total 187 strains of F6 rice population from crossed between Cabacu and IR64 were tested using solution of Yoshida. Root length at 45 ppm AlCl3 condition for 21 days was used as data for phenotype linkage analysis with molecular markers. The result of linkage analysis using 47 microsatellite primer shown that RM 104, RM 25, RM 72 and RM 201 were associated with Al stress tolerant trait. These markers shown the genes location which associated with aluminum toxicity tolerance at position 40.166.840 bp chromosome 1, 4.377.460 bp dan 6.762.710 bp chromosome 8 and 20.174.289 bp chromosome 9.
Keyword: tolerant, bulk segregant analysis, microsatellites marker, rice.

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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