Rhizobia in Pamirs Plateau of China: Investigation of Symbiotic Resources with Leguminous Plants INVESTIGATION OF ROOT NODULES AND DISCUSSION OF THE FACTORS WHICH AFFECT NODULATION IN CASUARINA EQUISETIFOLIA PLANTATIONS IN HAIKOU Effect of Intermittent Drought on Nodule Formation of Alfalfa The Role of Legumes-Root Nodule Bacteria Nitrogen Fixing System in Development of West Area of China Artificial formation of aerial nodules on Casuarina cunninghamiana Study on correlation between nodule density of different organs and hypericin content in Hypericum perforatum Meristematic Nodule: a Valuable Developmental Pathway for Plant Regeneration Biodiversity of Frankia strains in nodules from Alnus and Hippophae by ARDRA Cytohistological Studies on the Callus Genesis and Meristematic Nodule Formation of Paeonia×lemoinei ‘Golden era’ NITROGEN FIXING ROOT NODULES AND ITS FRANKIA ENDOPHYTE OF HIPPOPHAE RHAMNOIDES L. STUDIES ON THE CHARACTERISTICS RELATED TO SYMBIOTIC NITROGEN FIXATION OF LEGUMES IN HEXI CORRIDOR,GANSU Research Progress in Early Symbiotic Signal Transduction in Legumes Histology and Development Analysis of Meristematic Nodules from Cultured Pulsatilla koreana Kinetic Change in Envelope Membranes Enclosing Bacteroids and Relationship between Host Cells and Bacteroids CO-EFFECTS OF NITROGEN AND ZINC ON THE DEVELOPMENT AND NUTRIENT ABSORPTION OF WHITE CLOVER NODULES Ultrastructural Studies of the Infection Threads in Onobrychis viciaefolia Root Nodules A Special Inclusion in the Vacuoles of Vicia sativa Root Nodule Cells Ultrastructural Changes of the Infected Cells in Onobrychis viciaefolia Root Nodules Forms and Fates of Rhizobial Bacteria Present in the Infected Host Cells of Nodules