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From the pollen to the formation of the fruit

Oct 7
1 min read

 Pollination is the process by which male gametes reach the female pistils, allowing fertilization to occur.


1️⃣ Pollination can be classified based on the source of pollen:

  1. Autogamy – pollen comes from the same plant,

  2. Allogamy – pollen comes from a different plant.


2️⃣ The pollination process can also be classified based on the agent that transfers pollen:

  • anemogamy (wind),

  • hydrogamy (water),

  • zoogamy (animals), including entomogamy (insects), chiropterogamy (bats), ornithogamy (birds), and others.


🌺 The flower is the most highly developed generative organ. It evolved to facilitate pollination, which is no longer dependent solely on abiotic factors.


🦋 Thanks to their specific structure, diverse colors, the presence of directional markings, nectaries, and scents, plants have paved the way for zoogamy.


💧Pollination is the transfer of pollen grains from the anthers to the stigma of the pistil. The pollen grain then releases a tube that carries two sperm cells to the ovary - one sperm fuses with the egg cell, and the other with the central cell.


🌰 Double fertilization results in an embryo and a nourishing endosperm. The ovule becomes a seed, while the flower parts develop into fruit.


💡 Understanding pollination, including self-pollination and animal-mediated methods, highlights its complexity and the importance of diversity in ecosystems.


 
 
 

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