THE DEPRESSANT EFFECT OF CARBON DIOXIDE UPON PHOTOSYNTHESIS

Photosynthesis: The paradox of carbon dioxide efflux

The discovery that photosynthetic marine cyanobacteria can actually leak CO2 has been predicted from theory but, until now, never experimentally demonstrated. The apparent paradox can be explained by known chemistry and biochemistry, but the phenomenon may have important implications for paleoclimatology.

The Chlorophyll-carbon Dioxide Ratio during Photosynthesis

Using a rapid spectrographic method of carbon dioxide measurement previously described by McAlister (1937) further studies on the time course of photosynthesis in the higher plant, wheat, variety Marquis, are herein reported. Of major importance in this work is the discovery of a pick-up of carbon dioxide in darkness immediately following a high rate of photosynthesis (see Figs. 3 and 4). This ...

Carbon Dioxide Mitigation through Controlled Photosynthesis

The Influence of Light and Carbon Dioxide on Photosynthesis

1. An optical system is described which furnishes an intensity of 282,000 meter candles at the bottom of a Warburg manometric vessel. With such a high intensity available it was possible to measure the rate of photosynthesis of single fronds of Cabomba caroliniana over a large range of intensities and CO(2) concentrations. 2. The data obtained are described with high precision by the equation K...

Molecular Equivalence of Carbohydrates to Carbon Dioxide in Photosynthesis.

The photosynthetic reaction is commonly summarized by the following equation: 6 C02+ 6 H20 = C6H1206+6 02 The organic material formed has been commonly assumed to be glucose or some other carbohydrate. This equation is based principally on three types of facts: (a), the preponderance of carbohydrate material in plants, and the observed rapid increase in carbohydrates on illumination of green pl...