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http://dx.doi.org/10.5010/JPB.2012.39.1.069

High frequency somatic embryogenesis through leaf explant-derived callus culture in Muscari armeniacum cv. 'Early Giant'  

Lee, Hyang-Bun (Department of Horticultural Science, Kyungpook National University)
Jeon, Su-Min (Department of Horticultural Science, Kyungpook National University)
Chung, Mi-Young (Department of Agricultural Education, Sunchon National University)
Han, Jeung-Sul (School of Ecological Environment, Kyungpook National University)
Kim, Chang-Kil (Department of Horticultural Science, Kyungpook National University)
Lim, Ki-Byung (Department of Horticultural Science, Kyungpook National University)
Chung, Jae-Dong (Department of Horticultural Science, Kyungpook National University)
Publication Information
Journal of Plant Biotechnology / v.39, no.1, 2012 , pp. 69-74 More about this Journal
Abstract
Using calli of $Muscari$ $armeniacum$ cv. 'Early Giant' that is monocotyledonous ornamental bulb crop with increasing demand in Korea, we carried out current studies to establish an in vitro multiple propagation protocol via somatic embryogenesis. We found that soft pale yellow green calli were induced from leaf explants cultured on all media containing 0.1~3.0 $mg{\cdot}L^{-1}$ auxins such as 1-naphthalene acetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D). However, induced calli showed vigorous growth only when they further transferred on same media containing 2,4-D, 4-amino-3,5,6-tri-chloropicolinic acid (picloram), or 3,6-dichloro-o-anisic acid (dicamba). Although frequency of somatic embryo induction depended on callus source and PGR composition in somatic embryo induction media, somatic embryogenesis was initiated on surface of proliferated calli after transferring on media with no PGR or 0.01 $mg{\cdot}L^{-1}$ NAA co-supplemented with various cytokinins such as $N^6$-benzylaminopurine (BAP). Highest number of embryo at 9.3 per callus clump was obtained when calli which were grown under 0.1 $mg{\cdot}L^{-1}$ picloram supplementation were sub-cultured on medium with 0.01 $mg{\cdot}L^{-1}$ NAA and 0.5 $mg{\cdot}L^{-1}$ BAP. In addition, morphological characteristics of somatic embryo were categorized into following nine phases: globular, biased heart, biased torpedo, early cotyledonary, middle cotyledonary, late cotyledonary, early sprouting, middle sprouting, and late sprouting embryos.
Keywords
monocotyledon; plant growth regulator; regeneration; somatic embryogenesis; sprouting embryo;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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