Ultrastructure of oesophageal appendages (''peptonephridia'') in enchytraeids (Annelida : Clitellata)

DC FieldValueLanguage
dc.contributor.authorSchmelz, RM
dc.contributor.authorWestheide, W
dc.date.accessioned2021-12-23T16:04:31Z-
dc.date.available2021-12-23T16:04:31Z-
dc.date.issued2000
dc.identifier.issn10778306
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/6461-
dc.description.abstractAlthough the oesophageal appendages in the four enchytraeids Enchytraeus crypticus, Fridericia striata, Buchholzia appendiculata, and Achaeta sp. are quite different from one another in shape and position, their histology and ultrastructure are basically the same. These are intestinal appendages, the lumina of which distally end blind and proximally open into the oesophagus. Almost all of the few cells in their single-layered epithelium have a microvillous, cilia-free border at the apex, facing towards the lumen, and basally comprise an extremely extensive labyrinth. The presence of the latter, composed of very thin cell processes, and of numerous mitochondria identifies the organs as energy-producing and -consuming, transport-active structures. Their possible function as a food-moistening organ or osmoregulatory organ is discussed, and they are compared with other intestinal appendages in enchytraeids and other oligochaetes.
dc.language.isoen
dc.publisherWILEY
dc.relation.ispartofINVERTEBRATE BIOLOGY
dc.subjectbasal labyrinth
dc.subjectintestinal appendages
dc.subjectMALPIGHIAN TUBULES
dc.subjectMarine & Freshwater Biology
dc.subjectOLIGOCHAETA
dc.subjecttransport-active organ
dc.subjectZoology
dc.titleUltrastructure of oesophageal appendages (''peptonephridia'') in enchytraeids (Annelida : Clitellata)
dc.typejournal article
dc.identifier.isiISI:000085821100009
dc.description.volume119
dc.description.issue1
dc.description.startpage94
dc.description.endpage103
dc.identifier.eissn17447410
dc.publisher.place111 RIVER ST, HOBOKEN 07030-5774, NJ USA
dcterms.isPartOf.abbreviationInvertebr. Biol.
Show simple item record

Google ScholarTM

Check