Spore
In Biology, a spore is a structure of vegetative Multiplication or reproduction, if it constitutes one of the stages of the life cycle, of many Plante S, Algue S, Fungi and some Protozoaire S.
The spores can give rise to a new individual without Fécondation.
Certain spores show strength properties and can survive for long periods in adverse conditions and thus allow the dispersion of the species.
In the life cycles of the vegetable , one calls Sporophyte the generation which generates the spores (according to the cases: asexual spores or Microspore S and Macrospore S) and Gamétophyte the generation resulting from the development of the spores and which produces the Gamète S. a Fécondation of the Gamète S is then necessary to produce the Zygote, which, in its turn, will generate the growth of a Sporophyte. According to the plants, the importance which take these generations is variable.
Various types of spores
- Oospore
- Zoospore
- Conidie (or conidiospore)
- Baside (or basidiospore)
- Ascospore
- Microspore
- Macrospore or Mégaspore
- Carpospore
Production
A Champignon produces a very significant number of spores to achieve its life cycle. For example, a giant Puffball produced.The Basidiomycètes are more productive than the Ascomycètes. The Agaric S produce, Bulgaria inquinans : .
In spite of that, the probability that a spore gives a new mushroom is very weak. Indeed, one needs that the favorable conditions are met to obtain the Germination of a spore in a primary filament of Mycélium, then fecundation between two myceliumren to obtain a new mushroom.
Others
Spore (video game), a play of management/strategy to be left in 2008.
Simple: Spore
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