Judul: Light-capture efficiencies of Soybean in low light intensity
Abstrak: This research was conducted to study soybean light-capture efficiencies in low light intensity (LLI), based on morphological, physiological characters and ultrastructure of chloroplast. LLI levels were conditioned using paranet 50% and dark room for certain period of time (short and long term LLI exposure). LLI tolerant (Ceneng, Pangrango) and sensitive soybean genotype (Godek, Slamet) were used. The result showed that in low light intensity, soybean adjust light– capture efficiencies by increasing leaf area, chlorophyll a and b, total chlorophyll content, anthocyanin and reducing the ratio of chlorophyll a/b, stomata density and leaf thickness. Tolerant genotype, Ceneng, showed more adapted to LLI than sensitive genotype indicated by higher leaf area, leaf thickness, chlorophyll content, ratio of chlorophyll a/b, anthocyanin and well developed stack grana. Keyword: tolerant genotype, sensitive genotype, light-capture efficiencies
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Judul: Soybean (Glycinemax L. Merr.) genotype adaptability of low light intensity through isozyme analysis
Abstrak: The objective of this research was to study the utilization of low irradiance (LI) on soybean based on isozyme analysis and physiological characters. LI levels were conditioned using paranet 50% and dark room for certain period of time (short and long tenn LI exposure). LI tolerant (Ceneng, Pangrango) and sensitive soybean genotypes (Godek, Slamet), and four iwzyrnes namely aspartate amino transfeme (AAT), malate dehydrogenase (MDH), phospho glucose isomerase (PGI or GPI) and peroxidase (PER) were used. The results showed that shoot-mt ratio was significantly higher in tolerant genotypes (Ceneng, Pangrango) than sensitive one at six weeks after shading condition (CIA). Chlorophyll b, total chlorophyll and total sugar were significantly higher in tolerant genotype than sensitive one at 5 days dark condition (CSO). PER and GPI zimogram showed polymorphism at CL4 and CSO that might be used to differentiate the LI tolerant and sensitive genotypes of soybean.
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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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