Muscular system in the interna of Polyascus polygenea and Sacculina pilosella (Cirripedia: Rhizocephala: Sacculinidae)

A. A. Miroliubov, I. E. Borisenko, M. A. Nesterenko, O. M. Korn, A. D. Lianguzova, S. A. Ilyutkin, N. E. Lapshin, A. A. Dobrovolskij

Research output

Abstract

Rhizocephala is a group of unique and highly specialized parasitic crustaceans. Due to specialization in endoparasitism adult rhizocephalans have lost almost all the traits of free-living crustaceans. Despite large amount of data on different aspects of their biology there is still insufficient knowledge of their interna morphology. The muscular system in interna has been found and described only for Peltogaster paguri from the family Peltogastridae. The aim of our study is to visualize and describe muscular system in the interna of Polyascus polygenea and Sacculina pilosella (family Sacculinidae). Representatives of both species have similar type of muscular system, which is significantly different from that in P. paguri. The muscular system of the sacculinids consists of muscular rosettes located within the body wall of each rootlet. Muscle fibers in these rosettes are oriented in different directions. Tiny muscular processes connect the rosettes to each other. These contractile elements form a joint net-like muscular system. We suggest that this muscular system provides peristaltic movement of the roots and transports nutrients within the interna.

Original languageEnglish
Pages (from-to)48-56
Number of pages9
JournalInvertebrate Zoology
Volume16
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019

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Pilosella
Cirripedia
Crustacea
nutrient transport
integument
muscle fibers
Biological Sciences
crustacean
Polyascus
muscular system
muscle
nutrient

Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

Cite this

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title = "Muscular system in the interna of Polyascus polygenea and Sacculina pilosella (Cirripedia: Rhizocephala: Sacculinidae)",
abstract = "Rhizocephala is a group of unique and highly specialized parasitic crustaceans. Due to specialization in endoparasitism adult rhizocephalans have lost almost all the traits of free-living crustaceans. Despite large amount of data on different aspects of their biology there is still insufficient knowledge of their interna morphology. The muscular system in interna has been found and described only for Peltogaster paguri from the family Peltogastridae. The aim of our study is to visualize and describe muscular system in the interna of Polyascus polygenea and Sacculina pilosella (family Sacculinidae). Representatives of both species have similar type of muscular system, which is significantly different from that in P. paguri. The muscular system of the sacculinids consists of muscular rosettes located within the body wall of each rootlet. Muscle fibers in these rosettes are oriented in different directions. Tiny muscular processes connect the rosettes to each other. These contractile elements form a joint net-like muscular system. We suggest that this muscular system provides peristaltic movement of the roots and transports nutrients within the interna.",
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AU - Miroliubov, A. A.

AU - Borisenko, I. E.

AU - Nesterenko, M. A.

AU - Korn, O. M.

AU - Lianguzova, A. D.

AU - Ilyutkin, S. A.

AU - Lapshin, N. E.

AU - Dobrovolskij, A. A.

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