Effects of Various Nitrogen Compounds for the Growth of Barley Roots and Transaminase Activity

대맥근(大麥根)의 생장(生長)과 Transaminase의 활성(活性)에 미치는 몇 가지 질소화합물(窒素化合物)의 영향(影響)

  • Kim, K.S. (Dept. of Agricultural chemistry, College of Agriculture, Chonnam National University)
  • 김광식 (전남대학교 농과대학 농화학과)
  • Published : 1970.04.30


In order to investigate the inter-relation with the growth of the barley root and GOT and GPT activities the growth of root and GOT, GPT activities were measured those which have been supplied various nitrogen compounds ($NO_3-N$, $NH_4-N$, Urea, and Amino acid). The results obtained are summarized as follows: 1. Growth of barley root supplied with $NH_4-N$ is generally increased in length and weight compared with that of the root fertilized by $NH_4-N$. 2. The above-mentioned root with $NH_4-N$ is not only decreased in its weight and length but also is apt to inhibited its growth, in compared with the root provided with $NO_3-N$. 3. The activities of GOT and GPT for the root fertilized by $NH_4-N$, the badly grown root is generally increased, while of the root supplied with $NO_3-N$ is decreased compared with that of the root fertilized by $NH_4-N$. 4. The activities of GOT and GPT for the root provided with amino acid known as the considerable growth inhibiting compound for rice is generally decreased, while that of the badly known-grown root is increased. 5. The activities of GOT and GPT in the supernatant fraction of the barley is for the most part, high and low in the mitocondrial fraction.