Accession Number : AD0769159

Title :   Carrageenans in the Gametophytic and Sporophytic Stages of 'Chondrus crispus',

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA HALIFAX (NOVA SCOTIA) ATLANTIC REGIONAL LAB

Personal Author(s) : McCandless,E. L. ; Craigie,J. S. ; Walter,J. A.

Report Date : 23 JAN 1973

Pagination or Media Count : 13

Abstract : The morphologically similar sporophytic and gametophytic plants of Chondrus crispus Stackhouse were examined and it was shown that the former contain lambda-carrageenan. The gametophytes contain kappa- and two additional carrageenans which are KCl-soluble and may comprise up to 25% of the total carrageenan. After alkaline modification, these KCl-soluble components were separated into a gel and a soluble carrageenan. The gel was indistinguishable from kappa-carrageenan and presumably was derived from mu-carrageenan while the KCl-soluble fraction possessed a unique infrared spectrum easily distinguished from alkali-modified lambda-carrageenan. This appears to represent a third carrageenan in the gametophytes. (Modified author abstract)

Descriptors :   (*Plants(Botany), *Polysaccharides), Extraction, Life cycles, Chemical compounds

Subject Categories : Biochemistry
      Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE