Occurrence of Apiose in Nature

Occurrence of Apiose in Nature The chemistry of D-apiose (1) and apiin (4), from which this 

As a starting point for future investigations, most of the plants that Duff1 tentatively identified as containing apiose are listed from his ongoing research at the time of his death (with the permission of the Macaulay Institute and J. S. D. Bacon). 

The following plants contained substantial proportions of apiose, about the same as found in parsley Aegopodium pologaria (bishop s weed), Apium graveolens L. (celery), Conopodium majus (earthnut), Datus aucaparia (rowan), Desfontania spinosa, Ilex aquifolium (holly), Lavatera annual, Lemna wolffia (duckweed), Menyanthes trifoliata (bob bean), and Vinca minor (periwinkle). 

This widespread occurrence of apiose5 has not been substantiated by Beck.248 In lower plants (1 lichen, 3 mosses, 8 ferns, and 5 Gymnosperms), he detected no apiose. Beck also found no apiose in any of the plants representing families tested by Duff and Knight,5 except the Lemnaceae and Zosteraceae. It should be noted that Duff and Knight5 (also, unpublished data of Duff) did not originally find apiose in all species of any one family in which a member contained apiose, except when some species were re-examined more closely. 

Characterization of Apiose-containing Compounds of Low Molecular Weight 

---