Comprehensive Description

Read full entry

Description of Dictyosteliida

The trophic stage is amoeboid and aflagellate, possessing filose pseudopodia during locomotion. In culture, once the food supply is exhausted, the amoebae can aggregate under the influence of chemoattractants to form a pseudoplasmodium. The pseudoplasmodium is an aggregation of individual amoebae that differentiate into pre-stalk and pre-spore cells. The pseudoplasmodium may or may not migrate extensively, but ultimately undergoes soro-genesis, during which a stalk tube is formed by the stalk cells which, in the Dictyosteliidae become incorporated into the stalk tube. The remaining amoebae go to the top of the stalk tube, secrete a wall and become spores. The mass of spores is referred to as a sorus. A slime sheath covers the entire sorocarp. Under appropriate conditions, amoebae of some species can fuse to form a diploid cell that becomes a macrocyst, wherein meiosis occurs.

Trusted

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

biopedia

Source: BioPedia

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!