Ultrastructure of the fat body in the soil centipedes Lithobius forficatus (Lithobiidae) and Geophilus flavus (Geophilidae) according to their seasonal rhythms

Kamińska, Karolina; Lipovšek, Saška; Kaszuba, F.; Rost‐Roszkowska, Magdalena

doi:10.1016/j.jcz.2019.01.004

Cited by 4 publications

(1 citation statement)

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“…In the context of the accumulation of reserve materials and the synthesis of vitellogenin precursors, storage cells perform a function similar to that of the fat body cells in arthropods. This comparison suggests that, similarly to the role of fat body cells in arthropods, storage cells contribute to the storage and synthesis of essential materials, playing a crucial part in the reproductive and physiological processes of the organism [36].…”

Section: Discussionmentioning

confidence: 91%

Investigation of Potential Effects of Ibuprofen on the Storage Cells and Anhydrobiosis Capacity of the Tardigrade Paramacrobiotus experimentalis

Miernik,

Wieczorkiewicz,

Student

et al. 2024

Diversity

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The surge in pharmaceutical consumption, particularly non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen, has raised concerns about their presence in aquatic ecosystems. This study investigated the potential ecological impact of ibuprofen, focusing on the ultrastructure of storage cells in the tardigrade Paramacrobiotus experimentalis, renowned for its resilience to environmental stressors. Individuals were exposed to three ibuprofen concentrations (0.1 μg/L, 16.8 μg/L, and 1 mg/L) over 7 and 28 days. Storage cells were examined using light microscopy, transmission electron microscopy, and confocal microscopy. This study also explored ibuprofen’s impact on the process of anhydrobiosis. In the short-term experiment, no ultrastructural changes in tardigrade storage cells were observed across ibuprofen concentrations. However, in the long-term incubation, autophagic structures in storage cell cytoplasm were identified, indicating potential adaptive responses. Individual mitochondria exhibited degeneration, and the rough endoplasmic reticulum displayed slight swelling. No evidence of increased oxidative stress or nuclear DNA fragmentation was observed in any research group. This study elucidates the complex responses of tardigrade storage cells to ibuprofen exposure. The findings emphasize the importance of understanding pharmaceutical impacts on aquatic organisms, highlighting the resilience of tardigrades to specific environmental stressors.

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Section: Discussionmentioning

confidence: 91%