• Applied Biological Chemistry
• /
• 제12권
• /
• pp.107-114
• /
• 1969

생장조절제(生長調節劑) GA. IAA, Kinetin, Uracil 및 MH로 Nicotiana Tobaccum var. Virginica를 처리(處理)하여 황변현상(黃變現象)을 관찰(觀察)하여 다음과 같은 결과를 얻었다. 1) 엽연초엽황변시(葉煙草葉黃變時) Chlorophyll 감소(減少)에 따라 Protein 및 RNA의 감소(減少)도 병행(倂行)하였다. 2) GA, IAA, 를 처리(處理)한 엽(葉)은 Protein 과 RNA 의 감소(減少)가 억제(抑制)되고 MA로 처리(處理)된 엽(葉)은 오히려 무처리엽(無處理葉)봐 그들 성분(成分)의 감소(減少)가 심(甚)하였다. 3) 연초엽황변시(煙草葉黃變時) Chlorophyll a/b 비율(比率)의 변동(變動)과 protein 및 RAN 함량(含量)의 변동(變動)과는 아무런 상관관계(相關關係)가 없는것 같았다.

• 한국연초학회지
• /
• 제17권1호
• /
• pp.20-26
• /
• 1995

This study was carried out to obtain the basic data which include the change of the photosynthetic rate and protein content according to growth stage in the process of senescence of tobacco plant The photosynthetic rate was the maximum with 26.31$\mu$mol.CO2/m2.sec and stomatal resistance was the minimum with 0.2552cm/sec at 15th days after leaf emergence. However, after 50 days the photosynthesis was very little occurred. During leaf developments the number of chloroplast was increased and reached at the maximum at 25th days after emergence of leaf, thereafter, it was decreased gradually. The content of protein increased continuously and showed the highest value at 15th days after leaf emergence. The degradation rate of soluble protein was more rapid than that of insoluble protein at early stage of senescence. The range of decrement in the insoluble protein was low at late stage of senescence. The content of Rubisco, the key enzyme of photoamthesis, corresponded to about 50% of soluble protein and reached to the maximum at 150 days after leaf emergence. As the senescence progressed, the content of large subunit(UV) of Rubisco showed a tendency to decrease more rapidly than that of small subunit(SSU). The total amount of amino acids was the highest at 15th days after leaf emergence.