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Hasil Pencarian

Ditemukan 2 dokumen yang sesuai dengan query
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Ginindha Izzati Sabila
Abstrak :
Latar Belakang: Insidensi infeksi jamur oportunistik yang disebabkan oleh Candida krusei terus meningkat. Di sisi lain, beberapa penelitian melaporkan adanya penurunan sensitivitas C. krusei terhadap caspofungin, vorikonazol, Amfoterisin B, flusitosin, dan ketokonazol. Selain itu, pilihan obat untuk infeksi Candida krusei menimbulkan berbagai efek samping. Oleh karena itu, diperlukan pengobatan alternatif yang lebih efektif dan aman, salah satunya adalah daun Polyscias scutellaria. Tujuan: Penelitian ini dilakukan untuk mengetahui efektivitas daun Polyscias scutellaria terhadap Candida krusei in vitro. etode: Penelitian eksperimental ini untuk menguji efektivitas daun Polyscias scutellaria terhadap Candida krusei in vitro dengan menggunakan metode difusi cakram dan dilusi. Konsentrasi daun Polyscias scutellaria yang digunakan adalah 800 mg/mL, 1600 mg/mL, 3200 mg/mL, 6400 mg/mL, dan 12800 mg/mL. Hasil: Ekstrak daun Polyscias scutellaria memiliki aktivitas fungistatik terhadap Candida krusei dengan nilai KHM 12800 μg/mL. Diskusi: Daun Polyscias scutellaria berpotensi sebagai antifungi terhadap Candida krusei. Pembacaan hasil setelah 24 dan 48 jam inkubasi dapat dilakukan pada penelitian selanjutnya untuk memberikan hasil yang lebih optimal. ......Background: The incidence of opportunistic fungal infection caused by Candida krusei has been increased. On the other hand, several researches had been reported the decrease sensitivity of Candida krusei to caspofungin, voriconazole, Amphotericin B, flucytosine, and ketoconazole. Moreover, drug of choice for Candida krusei infection cause various side effects. Therefore, it be required the alternative therapy that is more effective and safer, one of which is Polyscias scutellaria leaf. Objective: This research was done to determine the effectiveness of Polyscias scutellaria leaf to Candida krusei in vitro. Methods: This experimental study is to test the effectiveness of Polyscias scutellaria leaf against Candida krusei in vitro using disc diffusion method and dilution method. The extract concentrations of Polyscias scutellaria leaf that be used are 800 mg/mL, 1600 mg/mL, 3200 mg/mL, 6400 mg/mL, and 12800 mg/mL. Results: Polyscias scutellaria leaf extract has fungistatic activity to Candida krusei with MIC value is 12800 μg/mL. Discussion: Polyscias scutellaria leaf extract is potent as antifungal against C. krusei. The reading time after 24 and 48 hours incubation can be considered in the next research to provide more optimal results.
Depok: Fakultas Kedokteran Universitas Indonesia , 2020
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UI - Skripsi Membership  Universitas Indonesia Library
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Bahagia Ayu Lestari
Abstrak :
Penelitian mengenai transformasi gen cry IAc ke padi subpesies Indica, Inpari 13, IR 64, dan Inpari 6, menggunakan Agrobacterium tumefaciens telah dilakukan, namun tanaman transgenik belum berhasil diperoleh. Gen cry IAc merupakan salah satu kelompok gen cry 1 yang memiliki toksin paling tinggi terhadap hama Lepidotera khususnya hama penggerek batang. Transformasi gen cry IAc dilakukan ke kalus padi menggunakan Agrobacterium tumefaciens strain LBA4404 yang membawa plasmid pAY560325_cryIAc. Kalus padi ditumbuhkan dalam media induksi kalus N6D selama 5 hari sebelum diinfeksi dengan Agrobacterium tumefaciens strain LBA4404. Selanjutnya, kalus ditanam dalam media resting, seleksi, dan media regenerasi. Gen cry IAc dan hptII telah dikonfirmasi menggunakan teknik isolasi DNA dan PCR. Transformasi gen cry IAc berhasil dilakukan dan terdapat perbedaan respons diantara ketiga varietas terhadap perlakuan kultur jaringan dan transformasi. Inpari 13 memberikan respons terbaik terhadap perlakuan transformasi berdasarkan hasil PCR gen cry IAc dan gen hptII, sedangkan IR 64 memberikan respons terbaik terhadap perlakuan kultur jaringan berdasarkan jumlah kalus embriogenik pada media induksi kalus. ......Transformation of Cry IAc Gene Treatment Mediated by Agrobacterium tumefaciens Research about transformation of cry IAc gene into subspesies Indica rice, Inpari 13, IR 64, and Inpari 6, had been conducted, but transgenic plant have not been yet obtained. Cry IAc is one of the group cry 1 gene with the highest toxin to pest of Lepidoptera especially stem borer. Transformation of cry IAc gene was conducted using Agrobacterium tumefaciens strain LBA4404 harboring plasmid pAY560325_cryIAc. Callus were grown in N6D induction media for 5 days before transformed by soaking in culture of Agrobacterium tumefaciens LBA4404. Subsequently, callus were grown in resting, selection, and regeneration medium. Cry IAc and hptII genes were confirmed through DNA extraction and PCR methods. Transformation of cry IAc gene successfully conducted and there were different responses of those varieties to tissue culture and transformation treatment. Inpari 13 showed the best response to transformation treatment based on the result of PCR of cry IAc and hptII genes, IR 64 gave the best response to tissue culture treatment based on the amount of embriogenic callus at callus induction medium.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2013
S44397
UI - Skripsi Membership  Universitas Indonesia Library