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钾是植物光合作用中不可缺少的矿质元素之一。它在光合作用中担负着重要的生理功能,如调节气孔的开放;是光合作用中许多酶的活化剂;参与同化物在韧皮部的运输等等。缺钾严重地影响着植物光合作用的各个方面,如光合作用中CO_2的同化、叶绿素含量、叶绿体结构PsⅠ、PsⅡ活力、希尔反应、光合磷酸化、电子传递链、暗反应酶活性及光合产物的运
Potassium is one of the indispensable mineral elements in the photosynthesis of plants. It plays an important physiological role in photosynthesis, such as regulating the opening of stomata; it is the activator of many enzymes in photosynthesis; involved in the transport of the assimilates in the phloem and so on. Potassium deficiency severely affects all aspects of plant photosynthesis, such as the assimilation of CO 2, chlorophyll content, chloroplast structure Ps Ⅰ, Ps Ⅱ activity, Hill reaction, photosynthetic phosphorylation, electron transport chain, dark reaction enzyme activity and photosynthetic products Luck