Short communication: The boring sponge (Pione vastifica, Hancock, 1849) induces oxidative stress in the Pacific oyster (Magallana gigas, Thunberg, 1793)

Comp Biochem Physiol B Biochem Mol Biol. 2024 Aug-Sep:273:110980. doi: 10.1016/j.cbpb.2024.110980. Epub 2024 Apr 16.

Abstract

Boring sponge infection affects growth, development and reduces the soft tissue weight of oysters. In this study, we investigated the effects of boring sponge on the activity of three antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GP)) in the mantle, and the production of reactive oxygen species (ROS) and potential genotoxicity in hemocytes of the Pacific oyster Magallana gigas. Our results showed a significant increase in ROS production and DNA damage in hemocytes. Notably, the activity of SOD, CAT, and GP in the mantle was not significantly affected by boring sponge infection. Collectively, these results suggest that sponge invasion may cause oxidative stress in Pacific oyster hemocytes through ROS overproduction.

Keywords: Boring sponge; Catalase; DNA damage; Glutathione peroxidase; Intracellular ROS; Superoxide dismutase.

MeSH terms

  • Animals
  • Catalase / metabolism
  • DNA Damage
  • Glutathione Peroxidase / metabolism
  • Hemocytes / metabolism
  • Ostreidae* / metabolism
  • Oxidative Stress*
  • Porifera* / metabolism
  • Reactive Oxygen Species* / metabolism
  • Superoxide Dismutase / metabolism

Substances

  • Reactive Oxygen Species
  • Superoxide Dismutase
  • Catalase
  • Glutathione Peroxidase