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Shoot Organogenesis and Plant Regeneration from Leaf Explants of Lysionotus serratus D. Don

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机构: [1]School of Ecology, Shanghai Institute of Technology, 100 Haiquan Road, Fengxian, Shanghai 201418, China [2]Shanghai Chenshan Plant Sciences Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China [3]Genetic Diagnosis Center, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People’s Hospital of Kunming, Yunnan Province 650032, China
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The gesneriaceous perennial plant, Lysionotus serratus, has been used in traditional Chinese medicine. It also has a great development potential as an ornamental plant with its attractive foliage and beautiful flowers. An efficient propagation and regeneration system via direct shoot organogenesis from leaf explant was established in this study. High active cytokinin (6-benzyladenine (BA) or thidiazuron (TDZ)) was effective for direct organogenesis of initial induction. Murashige and Skoog (MS) growth media containing 0.5mg L-1 BA alone or with combination of 0.1 mg L-1 alpha-Naphthaleneacetic acid (NAA) were the most effective for shoot proliferation. High BA concentration (1.0 mg L-1) in the media caused high percentage of vitrified shoots though they introduced high shoot proliferation rate. Histological observation indicated that adventitious shoot regeneration on the medium containing 0.5mg L-1 BA alone occurred directly from leaf epidermal cells without callus formation. Regenerated shoots rooted well on medium containing half-strength MS medium with 0.5 mg L-1 indole-3-butyric acid (IBA) and indole-3-acetic acid (IAA), and the plantlets successfully acclimatized and grew vigorously in the greenhouse with a 94.2% and 92.1% survival rate.

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大类 | 3 区 综合性期刊
小类 | 4 区 综合性期刊
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Q1 MULTIDISCIPLINARY SCIENCES
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第一作者机构: [1]School of Ecology, Shanghai Institute of Technology, 100 Haiquan Road, Fengxian, Shanghai 201418, China
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