加里に関する生化学的並びに栄養的研究(第1報) : 高等植物の呼吸に及ぼす加里の影響

抄録

(1) The effects of the potassium supply on the respiration of tomatoes, rice plants and barley seedlings in relation to other factors were fully investigated. (2) All plants in potassium starved condition, showed marked increase in respiration intensity, and the effect on respiration appears rapidly by the slight changes of potassium status in environment. (3) Sodium seems to have no direct connection with the respiratory process. (4) At the time of increase in respiration intensity caused by the addition of glucose, patassium is taken in and the decrease of respiration caused by the consumption of substrate brings excretion of part of the absorbed potassium. (5) Respiration is not intensified by the iron, which has been thought to be activated by potassium. (6) It may be suggested that potassium regulates the respiratory process through direct connection.