Growth in plants
Understandings:
• Undifferentiated cells in the meristems of plants allow indeterminate growth.
• Mitosis and cell division in the shoot apex provide cells needed for extension of the stem and development of leaves.
• Plant hormones control growth in the shoot apex.
• Undifferentiated cells in the meristems of plants allow indeterminate growth.
• Mitosis and cell division in the shoot apex provide cells needed for extension of the stem and development of leaves.
• Plant hormones control growth in the shoot apex.
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IAA - Auxin efflux pumps can set up concentration gradients of auxin in plant tissue.
• Auxin influences cell growth rates by changing the pattern of gene expression. |
Application: Micropropagation of plants using tissue from the shoot apex, nutrient agar gels and growth hormones.
Application: Use of micropropagation for rapid bulking up of new varieties, production of virus-free strains of existing varieties and propagation of orchids and other rare species.
Application: Use of micropropagation for rapid bulking up of new varieties, production of virus-free strains of existing varieties and propagation of orchids and other rare species.
