N. K. Boardman – författare

The Biochemistry of Plants: A Comprehensive Treatise, Volume 8: Photosynthesis provides information pertinent to the biochemistry of photosynthesis. This book focuses on the photosynthesis of higher plants but some consideration is given to algal and bacterial photosynthesis. Organized into 11 chapters, this volume begins with an overview of the excitation of a light-harvesting pigment by an absorbed light quantum. This text then discusses the evidence to support the hypothesis that chlorophyll–protein complexes are represented at the supramolecular level by some of the intramembranous particles seen on chloroplast freeze-fracture faces. Other chapters consider the absorption of light energy by accessory pigments and transferred to chlorophyll in the blue-green, red, and brown algae. This book discusses as well that certain cyanobacteria respond to the color of the incident light by altering their biliprotein composition. The final chapter deals with dark reaction of photosynthesis. This book is a valuable resource for plant biochemists, neurobiochemists, molecular biologists, senior graduate students, and research workers.

The Biochemistry of Plants: A Comprehensive Treatise, Volume 10: Photosynthesis provides information pertinent to the biochemistry of photosynthesis. This book discusses the advances in the field of photosynthesis and emphasizes that not only certain synthetic bacteria and microalgae but also other aquatic phototrophs possess mechanisms for concentrating CO2 or bicarbonate in their cells. Organized into six chapters, this volume begins with an overview of the ways of minimizing the wasteful oxygenase reaction catalyzed by the enzyme. This text then examines the molecular basis underlying the structure of the chloroplast thylakoid membrane and its biogenesis during the maturation of the chloroplast. Other chapters consider the dynamics of the thylakoid membrane, including the role of protein phosphorylation and the lateral distribution of electrical charge and protein components. This book discusses as well the molecular processes governing the development of the organelle. This book is a valuable resource for plant biochemists, neurobiochemists, molecular biologists, senior graduate students, and research workers.

123 phase and hence have no direct bearing on the retention time of solutes. However in gas-solid chromatography, a considerable quantity of the mobile phase may be adsorbed on the surface of the stationary adsorbent which diminishes the column''s effective length and ability to retain solutes. In this respect helium has been found to be preferable to most other gases (GREENE and Roy, 1957) because it is adsorbed to the least extent. 3. Packed columns offer a considerable resistance to flow, which may create a pressure differential between inlet and outlet of sufficient magnitude to cause an unfavorable flow rate through a significant length of the column. A reduced inlet/outlet pressure ratio can be obtained by using light molecular weight gases toward which the column packing shows the greatest permeability. The flow rate of the mobile phase is normally adjusted by altering the column inlet pressure, for which purpose commercial pressure regulators of sufficient accuracy are available. Quantitative measurements of the flow rate can be made by a number of methods, including rotameters, orifice meters, soapfilm flow meters and displacement of water. The former two methods are the most con­ venient but the least accurate; moreover they create a back pressure and are temperature dependent whereas although the moving soap bubble is cumbersome to employ and unusable for continuous readings, it is preferred when the highest accuracy is required.