Regeneration of protoplast-derived green plants of Kentucky blue grass (Poa pratensis L.) |
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Authors: | Kirsten Annette Nielsen Else Larsen Elisabeth Knudsen |
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Institution: | (1) Dansk Planteforædling A/S, Boelshøj, P.O. 19, DK-4660 St. Heddinge, Denmark;(2) Present address: Laboratory for Gene Expression, Department of Molecular Biology, University of Aarhus, Gustav Wiedsvej 10, DK-8000 Århus C, Denmark |
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Abstract: | Summary Green plants were repeatedly regenerated from suspension-derived protoplasts of Kentucky blue grass (Poa pratensis L.) cv. Geronimo . One suspension was capable of donating competent protoplasts during long-term culture i. e. 10–16 months after its establishment. The plating efficiency of the protoplasts from three different suspension lines varied from 0.004% in the lowest up to 1.5% in the highest responding line, using agarose-bedding in nutrition medium devoid of nurse or feeder cultures. Green plants germinated from polyembryos, which developed from 0.4–2.7% of the protoplast-derived microcolonies. A total of 127 plants were successfully transferred to soil.Abbreviations ABA
abscisic acid
- BAP
6-benzylaminopurine
- 2,4-D
2,4-dichlorophenoxyacetic acid
- FW
fresh weight
- PE
plating efficiency |
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Keywords: | Protoplasts Regeneration Poa pratensis L |
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