|
|
|
한국식물학회 / v.51, no.6, 2008년, pp.424-427 
|
( Suppressed Leaf Senescence in Chrysanthemum Transformed with a Mutated Ethylene Receptor Gene mDG-ERS1(etr1-4) ) |
| ;;;; ;;;;
|
|
|
 |
|
| |
| 초 록 |
|
|
| Previously, Narumi et al. (2005) generated chrysanthemum plants transformed with a mutated ethylene receptor gene (mDG-ERS1(etr1-4), and showed that the in vitro plantlets of the transformants grown aseptically in a small plastic container had a reduced sensitivity to ethylene resulting in reduced leaf yellowing after exposure to exogenous ethylene. In the present study we evaluated ethylene sensitivity of the transformants using soil-grown mature plants. When the shoots detached from soil-grown plants were treated with exogenous ethylene under continuous light, leaf yellowing (senescence) was delayed in the transformants as compared with the non-transformed plants. Furthermore, when the detached shoots were kept in darkness without ethylene treatment, the transformants showed reduced senescence as compared with those of the non-transformed plants. These results demonstrated that the mutated ethylene receptor gene mDG-ERS1(etr1-4) could confer reduced sensitivity to ethylene in the leaves of mature chrysanthemum plants. This gene may be useful to generate transgenic Compositae vegetables with leaves green for a longer time and thus having a longer shelf life. |
| |
| 키워드 |
| Chrysanthemum morifolium (Dendranthema grandiflorum);ethylene insensitive;leaf deterioration;leaf senescence;leaf yellowing;transgenic chrysanthemum; |
| |
|
|
|
|
Journal of Plant Biology / v.51, no.6, 2008년, pp.424-427
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200812651529953)
언어 : 영어 |
|
| 논문 제공 : KISTI 한국과학기술정보연구원 |
|
|
|
|
|
|
