The structure of the desiccated Richtersius coronifer (Richters, 1903)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985823%3A_____%2F17%3A00477001" target="_blank" >RIV/67985823:_____/17:00477001 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00709-016-1027-2" target="_blank" >http://dx.doi.org/10.1007/s00709-016-1027-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00709-016-1027-2" target="_blank" >10.1007/s00709-016-1027-2</a>

Result language

angličtina

Original language name

The structure of the desiccated Richtersius coronifer (Richters, 1903)

Original language description

Tun formation is an essential morphological adaptation for entering the anhydrobiotic state in tardigrades, but its internal structure has rarely been investigated. We present the structure and ultrastructure of organs and cells in desiccated Richtersius coronifer by transmission and scanning electron microscopy, confocal microscopy, and histochemical methods. A 3D reconstruction of the body organization of the tun stage is also presented. The tun formation during anhydrobiosis of tardigrades is a process of anterior-posterior body contraction, which relocates some organs such as the pharyngeal bulb. The cuticle is composed of epicuticle, intracuticle and procuticle, flocculent coat, and trilaminate layer. Moulting does not seem to restrict the tun formation, as evidenced from tardigrade tuns that were in the process of moulting. The storage cells of desiccated specimens filled up the free inner space and surrounded internal organs, such as the ovary and digestive system, which were contracted. All cells (epidermal cells, storage cells, ovary cells, cells of the digestive system) underwent shrinkage, and their cytoplasm was electron dense. Lipids and polysaccharides dominated among reserve material of storage cells, while the amount of protein was small. The basic morphology of specific cell types and organelles did not differ between active and anhydrobiotic R. coronifer.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10601 - Cell biology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Protoplasma

ISSN

0033-183X

e-ISSN

—

Volume of the periodical

254

Issue of the periodical within the volume

3

Country of publishing house

AT - AUSTRIA

Number of pages

11

Pages from-to

1367-1377

UT code for WoS article

000399037400020

EID of the result in the Scopus database

2-s2.0-84988733639