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An agarophyte is a seaweed, typically a red alga, that produces the hydrocolloid agar in its cell walls.[1] This agar can be harvested commercially for use in biological experiments and culturing. In some countries (especially in the developing world), the harvesting of agarophytes, either as natural stocks or a cultivated crop, is of considerable economic importance. Notable genera of commercially exploited agarophytes include Gracilaria and Gelidium.


  1. ^ Williams, Peter W.; Phillips, Glyn O. (2000). Handbook of hydrocolloids. Cambridge: Woodhead. ISBN 1-85573-501-6.