Not the cAMP/PKA pathway but the cGMP/PKG pathway promotes branchial ammonia excretion in the green shore crab, Carcinus maenas
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Ammonotelic animals excrete their toxic waste ammonia directly into the surrounding environment. To deal with conditions causing elevated hemolymph ammonia levels, such as feeding, an efficient ammonia excretion process must be in place to keep hemolymph ammon... ...