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Volume :22 Issue : 1 1995
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Studies on pathways of nitrate assimilation in the green alga Prasinocladus marinus
Auther : O. A. AL-AMOUDI
Biology Department, Faculty of Applied Sciences, University of Umm Al-Qura, Makkah, Saudi Arabia
ABSTRACT
Studies are described on Prasinocladus marinus which suggest that glutamine synthetase ( may have an important and direct effect in regulating the control of its nitrate assimiL Changes in the enzymes involved in primary nitrate assimilation under photoautotr heterotrophic and N-starved conditions appear to be influenced by the activity of glurn synthetase (GS). It is deactivated in photoautotrophic and heterotrophic cells by treatmer-. methioninesulfoximine (MSO), and its is suggested that deactivation may play an inn part in the regulation of nitrate assimilation. It is still not clear whether the enzyme - products of its metabolism are responsible.