Untersuchungen über die Zusammensetzung von Chlorella bei Synchronisation im Licht-Dunkel-Wechsel

Spectral Responses to Light by Unicellular Plants*

“…Only in the early stage of cell development production of RNA is more pronounced while in the later phase the rate of protein formation begins to exceed the rate of RNA synthesis. (16) As shown in Fig. 5 this trend in the protein/RNA ratio is nearly identical with cells from blue and red.…”

Experiments with synchronousAnacystis nidulans

“…The decrease in carbohydrates during dark phase is similar to that of eucaryotic Cblorella (RUPPEL 1962), but the increase in protein occurs only during the first hour of dark phase. So far we have no evidence if carbohydrates are excreted in the medium.…”

Evidence for Regulative Transactions between Cytoplasmic and Plastidial Translation by Euglena gracilis.

“…Extraction and determination of the amount of the plastidial D N A was performed by the method of RUPPEL (1962) or -for isolation of native plastidial D N A -the conventional phenol-cresol-method was used. The degree of purity was controlled by cesium chloride gradient centrifugation (MANNING, WOLSTENHOME, RYAN, HUNTER and RICHARDS 1971).…”