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OBSERVATIONS SUR LES BESOINS EN VITAMINES DES DESMIDIÉES (CHLOROPHYCÉES‐ZYGNEMATALES) 1
Author(s) -
Tassigny Michel
Publication year - 1971
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 - 10.1111/j.1529-8817.1971.tb01504.x
Subject(s) - biology , axenic , botany , auxotrophy , axenic culture , genus , bacteria , biochemistry , genetics , escherichia coli , gene
SUMMARY The minimal nutrient requirements of 61 strains of desmids belonging to 18 different genera were investigated within 16 axenic cultures and 45 contaminated cultures. Thirty‐nine strains were autotrophic: they included all 30 strains belonging to the genera Cosmarium, Staurastrum , and Micrasterias. Twenty‐two strains were auxotrophic; they included all 14 strains belonging to the genus Closterium. Of the 22 auxotrophic strains, 13 required only vitamin B 12 ; the specific requirements of the other 9 strains were not determined.