Effects of Nitrogen, Phosphorus, and Manganese Deficiencie on the Formation of Anthocyanin and Other Phenolic Compound in Plants

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  • 窒素、リン、マンガン欠乏が植物のアントシアニンおよびその他のフェノール性化合物の生成に及ぼす影響
  • チッソ リン マンガン ケツボウ ガ ショクブツ ノ アントシアニン オヨビ

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1)Effect of nitrogen, phosphorus, and manganese deficiencies on the formation of anthocyanin and other phenolic compounds were investigated with seedings of two cultivars of corn (Zea mays L.), Yellow Dent (YD), rich in anthocyanin, and Golden Crossbantam (GC), poor in anthocyanin. The nitrogen deficiency increased the contents of total phenol and flavanol in the leaves of both YD and GC more remarkably than the phosphorus deficiency. For YD, phosphorus deficiency caused a drastic accumulation of anthocyanin in the leaves, while the accumulation by nitrogen deficiency was slight. On the other hand, anthocyanin in GC was scarcely changed by the deficiencies. The increase in leucoanthocyanin content caused by phosphorus deficiency was greater than that by nitrogen deficiency both in YD and GC. 2) Effects of Mn deficiency on phenol metabolism were investigated with seedlings of red lettuce (Lacutuca sativa L.) and red cabbage (Brassica oleracea L.). After the seedlings were water-cultured with Mn-deficient culture solutions, phenylalanine ammonia-lyase (PAL) activity, total phenol, anthocyanin, and chlorophyll contents in the leaves were determined. Manganese deficiency caused decreases of PAL activity, total phenol and red anthocyanin was more remarkable. The anthocyanin content changed unrelatedly with the chlorophyll content in the upper leaves of red cabbage. It is suggested that Mn has a direct function in phenol metabolism, especially in anthocyanin formation.

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