Der Einfluss der Belichtung auf Die NADP+-Abhängige Glycerinaldehyd-3-Phosphat-Dehydrogenase

摘要

1.In green leaves of theAngiospermaeinvestigated here illumination causes a reversible increase in activity of NADP+-dependent glycerinaldehyde-3-phosphatedehydrogenase compared with the dark values.2.Illumination does not show this effect on the NAD+-dependent enzyme.3.Changing from dark to light and vice versa the new level of activity (by the present conditions) is attained in about 20 minutes.4.The light-induced increase of activity also takes place in CO2-free atmosphere as well as after application of actinomycin C.5.Chloramphenicol blocks the effect of light.6.It is concluded that illumination causes an increased synthesis of the NADP+-dependent GPD and it is supposed that this is caused by the increased supply of cofactors.