CRASSULACEAN ACID METABOLISM UNDER NATURAL TROPICAL CONDITIONS

S ummary The content of various metabolic intermediates has been determined in material from several species of succulent plants known to show a Crassulacean acid metabolism, grown under natural conditions at Kampala, Uganda. Free titratable acidity, malate, citrate and isocitrate, present in considerable amounts, and various keto‐acids present in relatively small amounts, have been measured both at dawn and during the later afternoon. In the...