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Principles of Tissue Culture
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Anther Culture
A technique where anthers are used to develop haploid plants through tissue culture that can be used for breeding programs.
Sterile Technique
Prevention of contamination in tissue culture by using sterile equipment and aseptic procedures.
Organogenesis
The process of forming new organs such as roots and shoots from callus or explants.
Subculturing
Transfer of cultured tissue to fresh media to provide new nutrients and space for continued growth.
Contamination Control
Methods to prevent biological contamination by microbes or foreign DNA in the tissue culture.
Media Composition
Nutrient-rich solution containing essential elements for the growth and development of the cultured tissue.
Genetic Transformation
The insertion or modification of genes within the cultured tissue to obtain desired traits.
Temporary Immersion System
A bioreactor system where plant tissues are intermittently immersed in nutrient medium allowing for efficient nutrient uptake and gas exchange.
Explant Selection
Choosing a specific piece of tissue from a plant or animal to culture, which can influence the growth and differentiation of the culture.
Somatic Embryogenesis
Development of embryos from somatic or non-germ cells, which can then be used to generate whole plants.
Photoperiod Control
Regulating light cycles to simulate day and night, which affects the growth and development of cultures.
Embryo Rescue
A technique where immature or weak embryos are cultured to bypass seed dormancy or save hybrids that might not survive on their own.
Hardening
Process of gradually acclimatizing tissue-cultured plants to external conditions before transferring them to soil.
Callus Induction
The process of inducing undifferentiated cell mass from explant tissues that can be used for plant regeneration or for genetic modifications.
Micropropagation
The cloning of plants by culturing a very small amount of tissue, which can produce thousands of plants from a single explant.
Cryopreservation
Long-term storage of plant or animal tissue at ultra-low temperatures, typically in liquid nitrogen.
pH Adjustment
The regulation of the pH level of the culture medium to an appropriate range for optimal tissue growth and development.
Nutrient Uptake
The absorption of essential minerals and vitamins from the culture medium, which are necessary for cell growth and metabolism.
Plant Hormones
Chemicals such as auxins, cytokinins, gibberellins used to regulate the growth and development in plant tissue cultures.
Air Exchange
Providing adequate airflow and gas exchange to the growing tissues, which is crucial for cellular respiration and photosynthesis.
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