Assessing Molecular Mechanisms of Stress Induced Salinity Adaptation in the Juvenile Ornate Spiny Lobster, <i>Panulirus ornatus</i>.

ABSTRACT: Panulirus ornatus, the ornate spiny lobster, is a stenohaline weak hyper-osmoregulator, yet its osmoregulatory response to salinity stress remains poorly understood. This study investigated six osmoregulatory genes-Na⁺/K⁺-ATPase (nka), V-type H⁺-ATPase (vhe), Na⁺/HCO₃^- exchanger (nbc), Na⁺/K⁺/2Cl^- co-transporter (nkcc), Na⁺/H⁺ exchanger (nhe), and carbonic anhydrase (ca)-in juvenile gills exposed to 25 ppt, 34 ppt (control), and 40 ppt salinities during acute (48 h) and chronic (>38 d) phases. Transcriptome analysis revealed that all genes were unresponsive following either 25 ppt or 40 ppt salinity acute exposure. However

SUBMITTER: Spencer EL 

PROVIDER: S-EPMC12652530 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature