Vari ous pl'ant preparati ons have been recommended for treatment of warts, tumors and cancerQus growths throughout recorded history. In a classic survey of the available literature, Hartwel1 1 identified over 3,000 plants reported to be of us~ in the treatment of these maladies. Numerous plant extracts have been subjected to detailed testing and fractionation studies in recent years and a wide...

Pantothenate (vitamin B5) is a water-soluble vitamin essential for the synthesis of CoA and ACP (acyl-carrier protein, cofactors in energy yielding reactions including carbohydrate metabolism and fatty acid synthesis. Pantothenate is synthesized de novo by plants and micro-organisms; however, animals obtain the vitamin through their diet. Utilizing our knowledge of the pathway in Escherichia co...

The discovery and isolation of the multienzyme system responsible for p oxidation of fatty acids to acetyl CoA’ have stimulated investigation of the synthesis of long chain fatty acids by multiple @ condensation of the acetyl CoA. In 1953 Van Baalen and Gurin (1) were the first to demonstrate that acetate was incorporated into fatty acids by aqueous extracts of pigeon liver. In 1953 Stansly and...

Cellulose microfibrils play essential roles in the organization of plant cell walls, thereby allowing a growth habit based on turgor. The fibrils are made by 30 nm diameter plasma membrane complexes composed of approximately 36 subunits representing at least three types of related CESA proteins. The complexes assemble in the Golgi, where they are inactive, and move to the plasma membrane, where...

Plant respiratory chain branches at the level of ubiquinone from where the electrons flow through the cytochrome pathway or to alternative oxidase. Transfer of electrons from ubiquinone to oxygen by alternative oxidase has a non-protonmotive character and, by bypassing two sites of H+ pumping in complexes III and IV, lowers the energy efficiency of respiration. In this paper we review theoretic...

The barium salt of 6-phosphogluconate was prepared according to the methiod of SEEGMILLER and HORECKER (18). Solutions were prepared for use by dissolving the material in HCl, removing the barium with potassium sulphate, and adjusting the pH to 7.4. Various samples of barium phosphogluconate contained 1.7 to 2.0 AM of organic phosphorus per mg. and 0.01 to 0.03 uM of inorganic phosphorus per mg...