| 词条 | Autospore |
| 释义 |
An autospore is a non-motile (non-flagellated) spore that is produced within a parent cell, and has the same shape as the parent cell, before release.[1] Autospores, in addition to zoospore and aplanospore, are one of the three types of spores that algae use to reproduce and spread asexually. [2] Autospores occur in several groups of algae, including Eustigmatophyceae, Dinoflagellates and green algae. For example, the colonial alga Dichotomococcus produces two autospores per reproducing cell; the autospores escape through a slit in the cell wall and remain attached to the mother cell.[3] Autospore FormationAn autospore is defined one of the daughter cells formed by the internal division of a single cell. Autospores are formed as a result of fission in the mitotic phase of cell division of green algae. There are multiple methods that a cell can take to form autospores. The cell can undergo a multiple fission after 2 nuclear divisions where 4 autospores will form which is the preferred mechanism in organisms such as P. subcapitata. In addition to this mechanism, there is binary fission (the split into 2 autospores) also known as the "two-autospore type" and the "eight-autospore type" References1. ^{{cite book | last=van den Hoek | first=C. |author2=Mann, D.G. |author3= Jahns, H.M. | year=1995 | title=Algae: An Introduction to Phycology | location=Cambridge | publisher=Cambridge University Press | page=455}} : Yamagishi T, Yamaguchi H, Suzuki S, Horie Y, Tatarazako N (2017) Cell reproductive patterns in the green alga Pseudokirchneriella subcapitata (=Selenastrum capricornutum) and their variations under exposure to the typical toxicants potassium dichromate and 3,5-DCP. PLoS ONE 12(2): e0171259. doi:10.1371/journal. pone.01712592. ^{{cite web|title=Reproduction in Algae|url=https://biocyclopedia.com/index/algae/algae/reproduction.php#cc|website=Biocyclopedia|publisher=Biocyclopedia|accessdate=20 April 2018}} 3. ^{{cite journal|last1=Thompson|first1=R. H.|title=A New Genus and New Records of Algae in the Chlorococcales|journal=American Journal of Botany|date=1952|volume=39|issue=6|pages=365–367|doi=10.2307/2438780|jstor=2438780}} Autospore | Definition of Autospore by Merriam-Webster. {{cell-biology-stub}} 4 : Green algae|Dinoflagellate biology|Fungal morphology and anatomy|Germ cells |
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