Plant Preservative Mixture can affect shoot regeneration from leaf explants of chrysanthemum, European birch, and rhododendron
2001
George, M.W. | Tripepi, R.R.
Plant Preservative Mixture (PPM), a relatively new, broad-spectrum preservative and biocide for use in plant tissue culture, was evaluated as an alternative to the use of conventional antibiotics and fungicides in plant tissue culture. Concentrations of 0.5 to 4.0 mL(.)L-1 were tested with leaf explants of chrysanthemum (Dendranthema xgrandiflora Kitam), European birch (Betula pendula Roth), and rhododendron (Rhododendron catawbiense Michx.). PPM had little effect on the percentage of explants forming shoots and the number of shoots formed per explant in birch and rhododendron, but dramatically reduced both responses in chrysanthemum. Therefore, the effects of PPM must be evaluated for each species of interest prior to use.
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