This journal provides immediate access to some articles. Volume 56(4); October 1975 Articles Dynamics of Photoassimilated Carbon in Douglas Fir Seedlings PMCID: PMC541848 Alkylguanidines as Inhibitors of K+ Transport in Isolated Barley Roots PMCID: PMC541849 Contractile Characteristics of Mimosa pudica L PMCID: PMC541850 Photocontrol of the Germination of Onoclea Spores: IV. Metabolic Changes during Germination PMCID: PMC541851 DPX 1840-induced Organogenesis in Xanthi-nc Tobacco Plants PMCID: PMC541852 Mechanism of Sulfate Transport Inhibition by Cycloheximide in Plant Tissues PMCID: PMC541853 Site of Action of Inhibitors of Carbon Dioxide Assimilation by Whole Lettuce Chloroplasts PMCID: PMC541854 Accumulation of δ-Aminolevulinic Acid and Its Relation to Chlorophyll Synthesis and Development of Plastid Structure in Greening Leaves PMCID: PMC541855 Control of δ-Aminolevulinic Acid and Chlorophyll Accumulation in Greening Maize Leaves upon Light-Dark Transitions PMCID: PMC541856 Transcription of Ribosomal and Messenger RNAs in Early Wheat Embryo Germination PMCID: PMC541857 Relationships between the Transition of the Physical Phase of Membrane Lipids and Photosynthetic Parameters in Anacystis nidulans and Lettuce and Spinach Chloroplasts PMCID: PMC541858 In Vitro Simulation of Cytoplasmic Membrane Senescence in Cotyledons PMCID: PMC541859 Size and Specific Radioactivity of the [3H]Thymidine Triphosphate Pool and DNA Synthesis in the Radicles of Germinating Cotton PMCID: PMC541860 Comparison of DNA Polymerase of Rhizobium meliloti and Alfalfa Bacteroids PMCID: PMC541861 Abscission of Phaseolus and Impatiens Explants: Effects of Ionizing Radiation upon Endogenous Growth Regulators and de Novo Enzyme Synthesis PMCID: PMC541862 Effect of Digitonin Concentration on Electron Transport, Phosphorylation, and Proton Uptake by Subchloroplast Particles PMCID: PMC541863 Cold Hardening in Citrus Stems PMCID: PMC541864 Effects of Abscisic Acid and Benzyladenine on Fruits of Normal and rin Mutant Tomatoes PMCID: PMC541865 Ethylene Production and Respiration in Aging Leaf Segments and in Disks of Fruit Tissue of Normal and Mutant Tomatoes PMCID: PMC541866 Possible Involvement of α-Farnesene in the Development of Chilling Injury in Bananas PMCID: PMC541867 Propylene—A Competitor of Ethylene Action PMCID: PMC541868 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||