Apoptosis and necrosis during the circadian cycle in the centipede midgut

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F16%3A00461157" target="_blank" >RIV/60077344:_____/16:00461157 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/16:10328619

Result on the web

<a href="http://dx.doi.org/10.1007/s00709-015-0864-8" target="_blank" >http://dx.doi.org/10.1007/s00709-015-0864-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00709-015-0864-8" target="_blank" >10.1007/s00709-015-0864-8</a>

Result language

angličtina

Original language name

Apoptosis and necrosis during the circadian cycle in the centipede midgut

Original language description

Three types of cells have been distinguished in the midgut epithelium of two centipedes, Lithobius forficatus, Scolopendra cingulata: digestive, secretory, and regenerative cells. According to the results of our previous studies, we decided to analyze the relationship between apoptosis and necrosis in their midgut epithelium and circadian rhythms. Ultrastructural analysis showed that these processes proceed in a continuous manner that is independent of the circadian rhythm in L. forficatus, while in S. cingulata necrosis is activated at midnight. Additionally, the description of apoptosis and necrosis showed no differences between males and females of both species analyzed. At the beginning of apoptosis, the cell cytoplasm becomes electron-dense, apparently in response to shrinkage of the cell. Organelles such as the mitochondria, cisterns of endoplasmic reticulum transform and degenerate. Nuclei gradually assume lobular shapes before the apoptotic cell is discharged into the midgut lumen. During necrosis, however, the cytoplasm of the cell becomes electron-lucent, and the number of organelles decreases. While the digestive cells of about 10 % of L. forficatus contain rickettsia-like pathogens, the corresponding cells in S. cingulata are free of rickettsia. As a result, we can state that apoptosis in L. forficatus is presumably responsible for protecting the organism against infections, while in S. cingulata apoptosis is not associated with the elimination of pathogens. Necrosis is attributed to mechanical damage, and the activation of this process coincides with proliferation of the midgut regenerative cells at midnight in S. cingulata.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

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

253

Issue of the periodical within the volume

4

Country of publishing house

AT - AUSTRIA

Number of pages

11

Pages from-to

1051-1061

UT code for WoS article

000380071700009

EID of the result in the Scopus database

2-s2.0-84939224040