[ Objective] This study aimed to investigate the differences in morphological characteristics of Dendrobium officinale plantlets propagated from different explants. [ Method] Randomly 1 000 D. offtcinale plantlets pro...[ Objective] This study aimed to investigate the differences in morphological characteristics of Dendrobium officinale plantlets propagated from different explants. [ Method] Randomly 1 000 D. offtcinale plantlets propagated via different regeneration pathways were selected for morphological investigation and classification. [ Result] D. officinale plantlets propagated from stem segment explants exhibited highly consistent morphological characteristics, while those propagated from seed explants exhibited a variety of morphological characteristics. [ Conclusion] Therefore, using seed explants for regeneration can effectively broaden the germplasms resources of D. officinale.展开更多
以茎段为外植体,建立了报春石斛Dendrobium primulinum的离体培养再生体系。结果表明:愈合组织诱导以培养基MS(Murashige and Skoog)+5.0mg·L-16-苄氨基嘌呤(6-BA)+1.5mg·L-12,4-D为最优,诱导率达33.33%;分化和增殖培养基均以...以茎段为外植体,建立了报春石斛Dendrobium primulinum的离体培养再生体系。结果表明:愈合组织诱导以培养基MS(Murashige and Skoog)+5.0mg·L-16-苄氨基嘌呤(6-BA)+1.5mg·L-12,4-D为最优,诱导率达33.33%;分化和增殖培养基均以MS+1.0mg·L-16-BA+0.1mg·L-1萘乙酸(NAA)+体积分数10%椰子水为佳,分化率最高可达83.20%,增殖倍数达3.82,外源物质椰子水可促进不定芽的形成及增殖。形成的无根苗转移到1/2MS+0.5mg·L-16-BA+1.0mg·L-1NAA+0.5g·L-1活性炭培养基上诱导生根发育形成完整植株。展开更多
基金Supported by of Spark Program of Guangdong Department of Science and Technology"Development of Cultivation Techniques of Dendrobium officinale Seedlings"(2013B020503062)Special Innovation Fund for Small and Medium Enterprise in Maoming City"Research and Demonstration of Alpine Organic Efficient Cultivation Technology of Precious Chinese Herb Dendrobium officinale"(2012B01088)
文摘[ Objective] This study aimed to investigate the differences in morphological characteristics of Dendrobium officinale plantlets propagated from different explants. [ Method] Randomly 1 000 D. offtcinale plantlets propagated via different regeneration pathways were selected for morphological investigation and classification. [ Result] D. officinale plantlets propagated from stem segment explants exhibited highly consistent morphological characteristics, while those propagated from seed explants exhibited a variety of morphological characteristics. [ Conclusion] Therefore, using seed explants for regeneration can effectively broaden the germplasms resources of D. officinale.
文摘以茎段为外植体,建立了报春石斛Dendrobium primulinum的离体培养再生体系。结果表明:愈合组织诱导以培养基MS(Murashige and Skoog)+5.0mg·L-16-苄氨基嘌呤(6-BA)+1.5mg·L-12,4-D为最优,诱导率达33.33%;分化和增殖培养基均以MS+1.0mg·L-16-BA+0.1mg·L-1萘乙酸(NAA)+体积分数10%椰子水为佳,分化率最高可达83.20%,增殖倍数达3.82,外源物质椰子水可促进不定芽的形成及增殖。形成的无根苗转移到1/2MS+0.5mg·L-16-BA+1.0mg·L-1NAA+0.5g·L-1活性炭培养基上诱导生根发育形成完整植株。