The Effect of Sodium and Chloride Salts on the Germination of Gigaspora margarita

SUMMARYAt various Na+ and Cl- concentrations, germination rates of azygospores of Gigaspora margarita were reduced more in the presence of Cl- than Na+. Viable spores, which had not germinated after 12 da in either 1.71 × 10-i molar Na+ or Cl-, were transferred to 0.01% glucose for 17 more da. The recovery of germinability by these spores was more rapid if the spores were previously exposed to Na+ rather than exposed to Cl-. Because of possible interactions between ion species in the different salt solutions used in this study, a specific ion effect cannot be conclusively demonstrated.