Paracoccus marcusii IHA034 Protects Larimichthys polyactis Against Oxidized Fish Oil and H2O2-Induced Intestinal Injury: Divergent Keap-1/Nrf2 Responses In Vivo and In Vitro
Findings demonstrate multi-modal protective effects of P. marcusii IHA034 and uncover contrasting Keap-1/Nrf2 regulatory patterns between in vivo intestinal tissue and in vitro cell models, providing mechanistic support for the application of this astaxanthin-producing bacterial resource in aquaculture.