Effective amino acid composition of seaweeds inducing food preference behaviors in Aplysia kurodai

摘要: Aplysia kurodai feeds on Ulva but rejects Gelidium and Pachydictyon with distinct patterned jaw movements. We previously demonstrated that these movements are induced by taste alone. Thus some chemicals may contribute to induction of responses. explored the amino acids composition Ulva, extracts used during our taste-induced physiological experiments. These solutions contained many constituents. The concentrations six (Asp, Asn, Glu, Gln, Phe, Tau) were obviously different in three extract solutions. following application containing a pure acid. statistically compared occurrence numbers ingestion-like rejection-like (positive negative values, respectively) for each Our results suggested L-Asn tends induce responses, likely resulting preference Ulva. In contrast, L-Asp aversion towards Pachydictyon. addition, we sufficient muscle activity associated or responses muscles semi-intact preparation.