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Heterotrophic growth of the nitrogen fixing blue‐green alga Nostoc muscorum
Author(s) -
ElRefai A. H.,
Nashat M. A.,
Salem H. M.
Publication year - 1974
Publication title -
zeitschrift für allgemeine mikrobiologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0044-2208
DOI - 10.1002/jobm.19740140404
Subject(s) - nitrogen fixation , sugar , nitrogen , heterotroph , biology , algae , amino acid , botany , cyanobacteria , chemistry , biochemistry , food science , bacteria , organic chemistry , genetics
Nostoc muscorum could grow heterotrophically and successfully utilized a number of different sugars. Glucose proved to be the best sugar tested for growth and nitrogen fixation. However, citrate was outstanding among the different organic acids tried in allowing a substantial algal growth and consequently a high amounts of fixed nitrogen. The chemical analysis of the algal cells as well as the culture filtrate revealed the presence of various amino acids as well as auxine like substances.