We tested this hypothesis by observing the sponge aquiferous structure and comparing the pumping rates of sponges and bivalves.
Remi Tsubaki, Makoto Kato 2014, 'A novel filtering mutualism between a sponge host and its endosymbiotic bivalves.',PLoS ONEhttp://europepmc.org/articles/PMC4203694?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Epithelial cells from damaged and adjacent intact choanocyte chambers and aquiferous canals assume mesenchymal phenotype and migrate into the mesohyl.
Ilya E. Borisenko, Maja Adamska, Daria B. Tokina, Alexander V. Ereskovsky 2015, 'Transdifferentiation is a driving force of regeneration in Halisarca dujardini (Demospongiae,Porifera)', PeerJhttps://peerj.com/articles/1211.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
As sponges are sessile filter feeders, their aquiferous system plays an essential role in various fundamental physiological processes.
Jörg U Hammel, Michael Nickel 2014, 'A new flow-regulating cell type in the Demosponge Tethya wilhelma - functional cellularanatomy of a leuconoid canal system.', PLoS ONEhttp://europepmc.org/articles/PMC4237394?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)