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http://dx.doi.org/10.5010/JPB.2009.36.1.018

Effects of glutamine and AgNO3 on plant regeneration of Sedum sarmentosum  

Ahn, Jeong-Ho (Chungnam Agricultural Research and Extention Service)
Kim, Hyun-Soon (National Institute of Crop Science, RDA)
Lee, Seung-Yeob (Institute of Life Science and Natural Resources, Wonkwang Univ.)
Publication Information
Journal of Plant Biotechnology / v.36, no.1, 2009 , pp. 18-22 More about this Journal
Abstract
This work was conducted to establish an efficient plant regeneration system for genetic transformation and the in vitro conservation of Sedum sarmentosum genetic resources. Effects of glutamine and $AgNO_3$ on plant regeneration between two genotypes were investigated using MS media supplemented with 0.2 mg/L NM and 3.0 mg/L BA. Calluses were formed on leaf explants placed on MS solid media supplemented with 3 mg/L 2,4-D and 1 mg/L BA. Calluses of Keumsan local strain produced shoots at a frequency of up to 100% after 50 days of culture on medium supplemented with glutamine. The highest number of shoots per callus was 17.6 at 350 mg/L glutamine. However, calluses of Wanju local strain gave rise to no shoots under the same culture conditions. Likewise, calluses of Keumsan local strain produced shoots at a frequency of up to 100% after 50 days of culture on medium supplemented with $AgNO_3$ whereas Wanju local strain sporadically produced shoots. The highest number of shoots per callus of Keumsan local stain was 16.1 at $15{\mu}M$ $AgNO_3$. Regenerated shoots were subcultured on hormone-free MS medium for rooting and shoot growth, and then 3-5 cm high plantlets were transplanted to the artificial soils comprising vermiculite and perlite, where they survived at a frequency of 88-100%. After being transplanted into upland soil:sand (1:1, v/v) in a greenhouse, regenerated plants showed a morphologically normal growth.
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Times Cited By KSCI : 5  (Citation Analysis)
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