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EFFECT OF LIGHT QUALITY ON POLYSACCHARIDE YIELD AND COMPOSITION OF TWO RED ALGAE
Author(s) -
Carmona R.,
Vergara J.J.,
Lahaye M.,
Niell F.X.
Publication year - 2000
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1046/j.1529-8817.1999.00001-29.x
Subject(s) - biology , chemostat , polysaccharide , algae , yield (engineering) , composition (language) , starch , botany , red algae , food science , gracilaria , agar , biochemistry , bacteria , linguistics , genetics , materials science , philosophy , metallurgy
Two species of agarophytes, Gelidium sesquipedale (Clem.) Born. et Thur. and Gracilaria tenuistipitata var. liui (Zhang & Xia), have been cultured in chemostat systems under different light qualities to study the response of growth and polysaccharide yield and composition to certain wavelengths. The yield of galactans, methoxyl groups and sulphate content in the agar as well as the starch concentration of these species are controlled by light quality in a different way, presumably because of their patterns of growth. The polysaccharide characteristics will be discussed in relation to the growth and metabolism of those algae.