大豆植物体内におけるα-ケトグルタル酸含量の変化

概要

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In order to know the a-ketoglutaric acid metabolism in soybean plants, quantitative analysis was carried out on the change of the content of a-ketoglutaric acid in the plant throughout its growing period using the 2, 4-dinitrophenylhyd-ragen method. The results obtained are summarized as follows 1) Remarkable differences of the content of a-ketoglutaric acid are observed among the parts of the plant and as the index of 100 indicates the average value of 0. 73m eq. containing in 100 g dry matter, the index varies 222 in leaf blade, 221 in pod, 64 in petiole, 57 in stem, 26 in root and 10 in seed respectively. 2) The content in the leaf blade increases progressively from lower to upper leaves according to their node number. The content in the xylem of main stern is high in degree only at young portion of apex, though it decreases suddenly after florescence and at the middle portion of main stem, it keeps comparatively high degree. 3) The content of a-ketoglutaric acid in the plant decreases gradually at various parts as growing advances. And it decreases slightly in seed as ripenning progresses, while the content on pod increases gradually in considerably high degree. From these results, it may be suggested that the change of the content in each portion somewhat relates to metabolic process of a-ketoglutaric acid in soybean plants.
信州大学農学部の論文
1967-12-25