Allogamy
3647987
208056154
2008-04-25T06:24:06Z
Ramin.j
6971637
'''Allogamy''' is a term used in the field of [[biological reproduction]] describing the [[fertilization]] of an [[ovum]] from one individual with the [[spermatozoa]] of another. By contrast, [[autogamy]] is the term used for self-fertilization. In humans, the fertilisation event is an instance of allogamy. Self-fertilization (also known as autogamy) occurs in [[hermaphrodite|hermaphroditic]] organisms where the two [[gamete]]s fused in fertilization come from the same individual. This is common in [[plant]]s and certain [[protozoa]]ns. In plants, allogamy is used specifically to mean the use of [[pollen]] from one plant to fertilize the [[flower]] god of another plant and usually syonymous with the term ''cross-fertilization'' or ''cross-pollination'', though the latter term can be used more specifically to mean pollen exchange between different [[Strain (biology)|plant strains]] or even different plant species (where the term ''cross-hybridization'' can be used) rather than simply between different individuals. [[Parasite]]s having complex [[Biological life cycle|life cycles]] can pass through alternate stages of allogamous and autogamous reproduction, and the description of a hitherto unknown allogamous stage can be a significant finding with implications for human disease.<sup>PMID 7100903</sup>
{{biology-stub}}
[[Category:Reproduction]]
[[fr:Allogamie]]