Thursday, February 16, 2017

Anthers and Stigmas and Styles, Oh My!



Angiosperm is produced when the plant is an embryo by meiosis. Meiosis creates non-identical gametes in the form of pollen, which contains sperm and ovules which contain eggs. In plants, both gametes are produced. Basically plants are both genders, unlike humans. In other words male and female sex organs are present. Meiosis creates these gametes in the cells to be non-identical haploid cells through random assortment, crossing over, and chromosome reduction.








This is the Brassica Oleracea plant before being dissected. The petals attract pollinators to fertilize the plant. The first step of the reproduction process is this. It brings the pollen of one plant to the stigma of another.






This is the Anthers (the part of the stamen that contains pollen) surrounding the Stigma. The reproductive is represented through the Anthers being male and the Stigma being female. Flowers contain both parts of the reproductive system, however sometimes they only contain one. The pollen contains sperm which rubs onto pollinators, such as bees.











This is the Stigma, which contain the style and ovaries. The Stigma is sticky at the top, bringing pollen in through the style and down into the ovaries. Not only can pollen be carried by pollinators, but it can also be blown through the wind.

No comments:

Post a Comment