| Topaz is a variety of canola exhibiting a high frequency of embryogenesis in isolated microspore cultures. |
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| Special emphasis is given to the initial stages of microspore embryogenic potential acquirement and the initiation of cell divisions. |
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| The polarity of the micro-gametophyte of flowering plants is related to the proximal-distal axis of the microspore from which it develops. |
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| The tapetal tissue has a secretory role providing essential nutrients required for microspore and pollen grain development. |
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| Using microspore culture, NRC-PBI developed a superior type of wheat called McKenzie wheat. |
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| Over the past ten years NRC's Dr. Alison Ferrie has perfected a breeding technique known as microspore embryogenesis. |
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| After a period of dormancy, each microspore germinates and grows into a prothallus that in turn produces ciliated, male gametes. |
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| Cyclic invasion of tapetal cells into loculi during microspore development in Nymphaea colorata. |
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| The male gametophyte phase of the life cycle begins in the microsporangium with meiotic production of tetrads of microspores followed by the division of each haploid microspore into a three-celled pollen grain. |
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| At the free microspore stage, a material with a similar electron density to sporopollenin fills the whole locule and deposits over the pollen grain wall. |
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