This journal provides immediate access to some articles. Volume 31(4); July 1956 Articles Oxidative Activity of Subcell Particles from a Number of Plant Species PMCID: PMC540779 Effects of a Series of Cycles of Alternating Low and High Soil Water Contents on the Rate of Apparent Photosynthesis in Sugar Cane PMCID: PMC540780 The Influence of Temperature on the Respiration of Cotton Leaf-Discs PMCID: PMC540781 Photoreversibility of Flower Initiation. PMCID: PMC540782 Exogenous Substrate Utilization and Fermentation by the Pollen of Pinus ponderosa. PMCID: PMC540783 Response of the Hypocotyl Hook of Bean Seedlings to Radiant Energy and Other Factors PMCID: PMC540784 Some Factors Affecting Absorption and Translocation of Zinc in Citrus Plants. PMCID: PMC540785 The Metabolism of Glucose by the Alga Ochromonas malhamensis. PMCID: PMC540786 Fat Metabolism in Higher Plants. VII. β-Oxidation of Fatty Acids by Peanut Mitochondria. PMCID: PMC540787 Respiration of Cucumber Fruits Associated with Physiological Injury at Chilling Temperatures. PMCID: PMC540788 Brief Papers: Effect of 2,4-Dichlorophenoxyacetic Acid and Other Growth-Regulators on the Formation of a Red Pigment in Jerusalem Artichoke Tuber Tissue. PMCID: PMC540789 Absorption of Cobalt60 by Leaves of Bean Plants in the Dark. PMCID: PMC540790 Similarity of Some Kinetin and Red Light Effects. PMCID: PMC540791 Alfalfa Lipoxidase. PMCID: PMC540792 Promotion of Leaf Expansion by Kinetin and Benzylaminopurine. PMCID: PMC540793 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||