Selection of Phalaenopsis amabilis L. Blume Orchid Resistance to Hygromycin  

Oleh:

Mercuriani, Ixora Sartika ; Purwantoro, Aziz ; Moeljopawiro, Sukarti ; Jang, Seonghoe ; Semiarti, Endang

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Indonesian Journal of Biotechnology vol. 17 no. 2 (Dec. 2012), page 107-113.
Topik: hygromycin; resistance; LD50; P. amabilis; protocorm
Fulltext: 139_Ros.pdf (252.75KB)

Isi artikel

Examination of Phalaenopsis amabilis orchid resistance to hygromycin antibiotic is an important step to do prior to Agrobacterium-mediated genetic transformation in this orchids using Hygromycin phosphotransferase (HPT) gene as a selection marker in the T-DNA that harboring a desired gene to be transfered. We exposed the plant on hygromycin containing medium. The experiment was conducted using 6 weeks old P. amabilis protocorms. These protocorms were subcultured onto NP medium supplemented with various concentration of Hygromycin (0, 5, 10, 20, 1nd 40 mg/l). The number of survival protocorms were examined every week for 4 weeks after subcultured (WAS). The resistancy of hygromycin was calculated as ratio of death protocorms per total protocorms). The result showed that 10 mg/l hygromycin with 1 weeks of application caused death close to LD 50. This data indicate that P. amabilis resistance to hygromycin treatment on the appropriate concentration 10 mg/l, and this concentration can be used for other purposes in orchid system.

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