|
|
|
한국식물학회 / v.33, no.2, 1990년, pp.87-96 
|
담배 현탁배양 세포에 있어 Polyamine 과 Ethylene 생합성시 중간산물로서 S-Adenosylmethionine의 역할
( Role of S-Adenosylemthionine as an Intermediate in Relation between Polyamine and Ethylene Biosynthesis in Suspension-Cultured Tobacco Cells ) |
| 박기영; 연세대학교 이과대학 생물학과;
|
|
|
 |
|
| |
| 초 록 |
|
|
| The role of S-adenosylmethionine (SAM) as an intermediate in interrelation between polyamine and ethylene biosynthesis was studied in suspension cultures of Nicotiana tabacum L. Exogenous SAM stimulated the polyamine and ethylene biosynthesis in 4 day-cultured cells, which were in active cell divisions, and 10 day cultured cells, which went on with active cell elongation and senescence. SAM-induced ethylene production was more effective in 10 day-cultured cells than in 4 day-cultured cells, but SAM-induced polyamine biosynthesis was more effective in 4 day-cultured cells than in 10 day-cultured cells. Polyamine contents were increased by the blockage of ethylene biosynthetic pathway in the conversion of SAM to ethylene via 1-aminocyclopropane-1-carboxylinc acid (ACC) with aminooxyacetic acid (AOA). Also, ethylene production was increased by the inhibitors of polyamine biosynthesis such as methylglyoxal bis-(guanylhydrazone) (MGBG), dicyclohexylamine (DCHA), $alpha$-difluoromethylarginine (DFMA) and $alpha$-difluoromethylorinithine (DFMO). These results suggest that there may be interrelations between polyamine and ethylene biosynthesis for the competition of SAM and the inherent mechanism of switch on-off in polyamine and ethylene biosynthetic activity with the progress of cell growth and senescence. |
| |
| 키워드 |
|
| |
|
|
|
|
Journal of Plant Biology / v.33, no.2, 1990년, pp.87-96
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199011920115145)
언어 : 한국어 |
|
| 논문 제공 : KISTI 한국과학기술정보연구원 |
|
|
|
|
|
|
