Publications by authors named "Stephanie Hans"

The American horseshoe crab, Limulus polyphemus, excretes nitrogenous waste in the form of toxic ammonia across their book gills. The mechanism of this branchial excretion is yet unknown. In the current study, two isoforms of a novel ammonia transporter, LpHIAT1α and LpHIAT1β, have been identified in L.

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Many studies have investigated ammonia excretion and acid-base regulation in aquatic arthropods, yet current knowledge of marine chelicerates is non-existent. In American horseshoe crabs (), book gills bear physiologically distinct regions: dorsal and ventral half-lamellae, a central mitochondria-rich area (CMRA) and peripheral mitochondria-poor areas (PMPAs). In the present study, the CMRA and ventral half-lamella exhibited characteristics important for ammonia excretion and/or acid-base regulation, as supported by high expression levels of Rhesus-protein 1 (LpRh-1), cytoplasmic carbonic anhydrase (CA-2) and hyperpolarization-activated cyclic nucleotide-gated K channel (HCN) compared with the PMPA and dorsal half-lamella.

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