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Plant Tissue Cultures

Plant Tissue Cultures. Conditions required for plant tissue cultures. An original stock of cells. The use of aseptic techniques when preparing media and cultures. A suitable container for cell growth. A growth medium providing essential nutrients.

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Plant Tissue Cultures

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  1. Plant Tissue Cultures

  2. Conditions required for plant tissue cultures • An original stock of cells. • The use of aseptic techniques when preparing media and cultures. • A suitable container for cell growth. • A growth medium providing essential nutrients. • Plant growth regulators e.g. auxins and cytokinins

  3. Features of plant cells • Plant cells are totipotent, unlike animal cells. Their pattern of gene expression means that any cell has the potential to become any part of the plant.

  4. Stages to plant Tissue Culture • The cells are often taken from the meristem, the rapidly growing tissue at the point of the root or shoot. • These are sterilised and placed in a nutrient solution in a Petri dish where they multiply, forming an undifferentiated mass of tissue, which is called callus. • If the callus is divided up and given plant growth regulators such as auxins and cytokinins then differentiation takes place, roots and shoots develop, giving rise to plantlets. • These can be grown on in the usual way-and each is genetically identical to the parent

  5. Uses of Plant Tissue Cultures Tissue culture is used to clone plants for :- • Food production e.g. Large variety of potatoes • Raw materials – Palm oil used in production of raw materials used in soap and production of plastics • Energy substitutes – Plant oils produced are now starting to be used as petroleum substitutes • Preservation of endangered species

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