Structures related to attachment and motility in the marine eugregarine Cephaloidophora cf. communis (Apicomplexa)

KOVÁČIKOVÁ, Magdaléna, Timur G. SIMDYANOV, Andrei DIAKIN and Andrea BARDŮNEK VALIGUROVÁ. Structures related to attachment and motility in the marine eugregarine Cephaloidophora cf. communis (Apicomplexa). EUROPEAN JOURNAL OF PROTISTOLOGY. Jena: ELSEVIER GMBH, 2017, vol. 59, June, p. 1-13. ISSN 0932-4739. Available from: https://dx.doi.org/10.1016/j.ejop.2017.02.006.

Basic information

• Original name: Structures related to attachment and motility in the marine eugregarine Cephaloidophora cf. communis (Apicomplexa)
• Authors: KOVÁČIKOVÁ, Magdaléna (703 Slovakia, guarantor, belonging to the institution), Timur G. SIMDYANOV (643 Russian Federation), Andrei DIAKIN (643 Russian Federation, belonging to the institution) and Andrea BARDŮNEK VALIGUROVÁ (703 Slovakia, belonging to the institution).
• Edition: EUROPEAN JOURNAL OF PROTISTOLOGY, Jena, ELSEVIER GMBH, 2017, 0932-4739.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: Germany
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 2.430
• RIV identification code: RIV/00216224:14310/17:00094839
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.1016/j.ejop.2017.02.006
• UT WoS: 000404501900001
• Keywords in English: Actin; alpha-Tubulin; Apicomplexa; Cell motility; Eugregarine; Myosin
• Tags: NZ, rivok
• Tags: International impact, Reviewed

Abstract

Gregarines represent a highly diversified group of ancestral apicomplexans, with various modes of locomotion and host parasite interactions. The eugregarine parasite of the barnacle Balanus balanus, Cephaloidophora cf. communis, exhibits interesting organisation of its attachment apparatus along with unique motility modes. The pellicle covered gregarine is arranged into longitudinal epicytic folds. The epimerite is separated from the protomerite by a septum consisting of tubulin-rich filamentous structures and both are packed with microneme-like structures suggestive of their function in the production of adhesives important for attachment and secreted through the abundant epimerite pores. Detached trophozoites and gamonts are capable of gliding motility, enriched by jumping and rotational movements with rapid changes in gliding direction and cell flexions. Actin in its polymerised form (F-actin) is distributed throughout the entire gregarine, while myosin, detected in the cortical region of the cell, follows the pattern of the epicytic folds. Various motility modes exhibited by individuals of C. cf. communis, together with significant changes in their cell shape during locomotion, are not concordant with the gliding mechanisms generally described in apicomplexan zoites and indicate that additional structures must be involved (e.g. two 12-nm filaments; the specific dentate appearance of internal lamina inside the epicytic folds).

Links

• GBP505/12/G112, research and development project: Name: ECIP - Evropské centrum ichtyoparazitologie

Investor: Czech Science Foundation