Term
| What drives the huge diversity of plant form and function, both among species and within genetically identical plants in reponse to environment? |
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Definition
| The ability to change the fate of meristematic cells |
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Term
| How can plants with exactly the same genes look completely different? |
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Definition
| Phenotypic plasticity (meristems are the key) |
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Term
| What are the main types of meristems and what do they lead to? |
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Definition
Lateral meristems (in stem, lead to wood production)
Shoot apical meristems (shoots)
Root apical meristems (roots) |
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Term
| Why can meristematic cells make new plant embryos without flowering? |
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Definition
| Because they are totipotent |
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Term
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Definition
| Control over timing, position and identity of cells and organs |
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Term
| How does post-embryonic organ formation differ between plants and animals? |
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Definition
| None in animals, fully developed at end of embryogenesis. Plants have post-embryonic organ formation through action of meristems |
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Term
| What are the different zones of the SAM? |
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Definition
Peripheral zone: differentiate into lateral organs
Rib meristem: Differentiate into the stem
Central zone: pool of undifferentiated stem cells |
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Term
| What suggests signalling is involved in maintaining the pattern and identity of cell files in root development? |
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Definition
| Changing cell division properties does not always perturb the root development |
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