Plant Tissue Culture and Plant Improvement: Some Recent Findings from Experiments with Schlumbergera, Hatiora (Rhipsalidopsis), and Campanula
Sridevy Sriskandarajah and Margrethe Serek
Plant tissue culture techniques have applications to a wide range of species and such usage has increased dramatically over the past twenty or so years. Techniques used include regeneration of cells, tissues, protoplasts, organs, embryos, ovules, microspores, anthers, etc. More recently, applications of these techniques have been extended to improve existing cultivars. Tissue culture techniques applied to plant improvement gives the opportunity to introduce genes across species. In addition, selection of somaclones through variation created by the tissue culture techniques themselves or those induced by mutagenic agents could also be used for creating new varieties.
Several ornamental plants suffer from sensitivity to exogenous ethylene, and it results in premature bud drop and early flower senescence. Anti-ethylene compounds such as silver thiosulfate, which are harmful and costly, are being used by the growers to reduce the above problems. However, the growers are very
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