期刊
PLANT CELL TISSUE AND ORGAN CULTURE
卷 71, 期 1, 页码 23-28出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1016574513545
关键词
adventitious shoot; flow cytometric analysis; Hosta sieboldiana (Lodd.) Engl.; plant regeneration; suspension culture
Systems for establishing suspension cultures and for inducing plant regeneration from these cultures for the Liliaceous ornamental plant, Hosta sieboldiana (Lodd.) Engl. have been developed. Pale-yellow and nodular calluses were induced from more than 20% of scape segments on MS medium containing 1 mg l(-1) picloram (PIC), 30 g l(-1) sucrose, and 2 g l(-1) gellan gum. Upon transfer of calluses to the same medium lacking gellan gum, stably-growing suspension cultures were established after 1 month. Suspension cell clusters regenerated a large number of adventitious shoots following transfer to MS media containing 0.1 mg l(-1) NAA in combination with either BA or TDZ. Over 20 shoots per 0.3 g FW of cell clusters were obtained on media containing 0.1 mg l(-1) NAA and either 1 or 5 mg l(-1) TDZ. Shoots rooted easily on plant growth regulator (PGR)-free MS medium, and plantlets were successfully transferred to soil. Plants showed no visible morphological alterations and maintained the diploid level as indicated by flow cytometric analysis.
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