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Vernadsky was most likely introduced to the term by a common acquaintance, Édouard Le Roy, during a stay in Paris. [12] Some sources claim Édouard Le Roy actually first proposed the term. [ 13 ] Vernadsky himself wrote that he was first introduced to the concept by Le Roy in his 1927 lectures at the College of France, and that Le Roy had ...
This page was last edited on 13 June 2013, at 20:25 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
A nonmotile female gamete formed in the oogonium of some algae, fungi, oomycetes, or bryophytes is an oosphere. [2] When fertilized, the oosphere becomes the oospore. [clarification needed] When egg and sperm fuse during fertilisation, a diploid cell (the zygote) is formed, which rapidly grows into a new organism.
The antheridia will then form fertilization tubes connecting the antheridial cytoplasm with each oosphere within the oogonia. A haploid nucleus (gamete) from the antheridium will then be transferred through the fertilization tube into the oosphere, and fuse with the oosphere's haploid nucleus forming a diploid oospore.
An oospore is a thick-walled sexual spore that develops from a fertilized oosphere in some algae, fungi, and oomycetes. [1] They are believed to have evolved either through the fusion of two species or the chemically induced stimulation of mycelia , leading to oospore formation.
The French Wikipedia (French: Wikipédia en français) is the French-language edition of Wikipedia, the free online encyclopedia. This edition was started on 23 March 2001, two months after the official creation of Wikipedia. [1]
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The definition is usually taken to include Australia, Canada, New Zealand, the United Kingdom, and the United States [9] in a grouping of developed countries called the core Anglosphere. The term Anglosphere can also more widely encompass Ireland , Malta and the Commonwealth Caribbean countries.