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J L ROSENBERG

Publications and source records attributed to J L ROSENBERG.

8 recordsLinked to original sources
PubMed1957

On the measurement of carbon dioxide uptake with a glass electrode.

1. It has been shown that the glass electrode method as previously described by the author for measurements of transient rates in photosynthesis is free of systematic errors. 2. Justification has been given for the use of the steady state-gas flow method for measuring rates of assimilation under conditions in which the solution is known not to be seriously depleted of CO(2). 3. The decline of photosynthetic rates under light saturation at CO(2) pressures less than several tenths per cent of an atmosphere has been shown to be a real phenomenon. It has been suggested that there may be a real discrepancy between this finding and those of some other investigators due to a difference in the previous history of the algal suspensions.

Carbon Dioxide↗
PubMed1954

Use of a glass electrode for measuring rapid changes in photosynthetic rates.

1. A continuously recording glass electrode apparatus has been described for measuring carbon dioxide concentration changes in solution. The limits of applicability of the apparatus have been analyzed. 2. The glass electrode apparatus has been used for the measurement of transient rates of photosynthesis by algal suspensions. 3. The decline of the photosynthetic rate in high light at carbon dioxide partial pressures less than 0.5 per cent atmosphere, observed in the glass electrode apparatus, has been confirmed by steady state experiments in which flowing gas streams were analyzed.

Carbon Dioxide↗