Difference between Pollen grains and Microspore
Difference between Pollen grains and Microspore are in tabular form below –
No. |
Pollen grains |
Microspore |
Definition |
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1. | Microspores which are granular, contains male gametes, useful for fertilisation and each cell contains two male gametes, this is known as Pollen grains. | Heterosporous plants containing any spores which forms from pollen mother cell by meiosis division and are found in microsporangium, this is known as Microspores. |
Seed or Seedless plants |
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2. | The pollen grains are observed in seed plants. | The microspore are observed in seedless plants such as ferns, and spike mosses. |
Development |
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3. | The development of pollen grains already takes place into male gametophyte. | The development of microspore later takes place into male gametophyte. |
One or more Cells |
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4. | Pollen grains contain more than one cell. | Microspore contain only one cell. |
Formation |
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5. | Formation of pollen grain occurs through micro-gametogenesis. | Formation of microspore occurs through micro-sporogenesis from micro-sporocytes. |
Amount of nutrients |
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6. | It has large amount of nutrients. | It has small amount of nutrients. |