Abstract
Miss AtcocK1, in an early publication on digestion in the ammocc” te larva, stated that extracts of the liver, alimentary canal and skin showed proteolytic activity of the peptic type. More recently, however, Berrill2,3 has described an enzyme of the tryptic type in the liver and skin (hatching enzyme) of ascidians, and in view of the phylogenetic relationship between these forms, Miss Alcock's work, which was carried out before the realisation of the importance of pH control, clearly demands reconsideration.
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References
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BARRINGTON, E. Proteolytic Digestion in the Ammoc” te Larva. Nature 136, 145 (1935). https://doi.org/10.1038/136145a0
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DOI: https://doi.org/10.1038/136145a0
