Abstract
Explants from leaves of in vitro-grown chrysanthemum (Dendranthema grandiflora Tzvel.) cultivars regenerated adventitious shoots without an intermediate callus phase. Puncturing explants with a brush increased regenerations, but in combination with cocultivation with Agrobacterium tumefaciens it had an adverse effect on shoot formation. The negative effect of brushing and cocultivation could be overcome by preculturing explants for 8 days. Preculture altered the location of transformed sites but did not inhibit transformation. Regeneration following cocultivation with Agrobacterium is also encouraged if alternative regeneration protocols are used that do not require brushing.
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Abbreviations
- BA:
-
benzyladenine
- GUS:
-
β-glucuronidase
- IAA:
-
indoleacetic acid
- NAA:
-
naphthaleneacetic acid
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de Jong, J., Rademaker, W. & van Wordragen, M.F. Restoring adventitious shoot formation on chrysanthemum leaf explants following cocultivation with Agrobacterium tumefaciens . Plant Cell Tiss Organ Cult 32, 263–270 (1993). https://doi.org/10.1007/BF00042287
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DOI: https://doi.org/10.1007/BF00042287