Pseudocnidae of ribbon worms (Nemertea): ultrastructure, maturation, and functional morphology.
Extrusomes
Palaeonemertea
Pilidiophora
Proboscis
Pseudocnidae
Ultrastructure
Journal
PeerJ
ISSN: 2167-8359
Titre abrégé: PeerJ
Pays: United States
ID NLM: 101603425
Informations de publication
Date de publication:
2021
2021
Historique:
received:
31
08
2020
accepted:
16
01
2021
entrez:
1
3
2021
pubmed:
2
3
2021
medline:
2
3
2021
Statut:
epublish
Résumé
The fine structure of mature pseudocnidae of 32 species of nemerteans, representatives of 20 genera, six families, and two classes was investigated with scanning and transmission electron microscopy. Pseudocnidae are composed of four layers (cortex, medulla, precore layer, and core) in most species investigated, but the degree of development and position of each layer can vary between different species. The secretion products comprising immature pseudocnidae segregate into separate layers: a thin envelope, which subsequently separates into the cortex and medulla and an extensive internal layer. We distinguish two pseudocnida types: type I is characterized by a two-layered core and type II by a three-layered core. Type I pseudocnidae are present in archinemertean species,
Identifiants
pubmed: 33643715
doi: 10.7717/peerj.10912
pii: 10912
pmc: PMC7897414
doi:
Banques de données
figshare
['10.6084/m9.figshare.12899840.v1']
Types de publication
Journal Article
Langues
eng
Pagination
e10912Informations de copyright
© 2021 Magarlamov et al.
Déclaration de conflit d'intérêts
The authors declare that they have no competing interests.
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