บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Inhibition of ethylene-induced cellular senescence symptoms by 1-methylcyclopropene.

Serek, M.; Sisler, E. C.; Tamari, G.; Borochov, A.;

Acta Horticulturae Year: 1995 Issue: No. 405 Pages: 264-268 Ref: 13 ref.

1995

บทคัดย่อ

Inhibition of ethylene-induced cellular senescence symptoms by 1-methylcyclopropene.

 

The effects of 1-methylcyclopropene (MCP) on cellular senescence symptoms in petunia flowers following exposure to ethylene was investigated. Cut Petunia hybrida flowers that were exposed to ethylene for 12 h at concentrations of 1-12 p.p.m. wilted sooner than their untreated counterparts. This effect was abolished by a 6-h pre-treatment with 1-MCP. Immediately following the ethylene treatment, decreases in petal FW and total protein content were measured, along with higher electrolyte leakage, and lower membrane lipid fluidity and protein content. When applied alone, 1-MCP had relatively little impact on these parameters. However, when the flowers were treated with 1-MCP prior to the ethylene treatment, ethylene had no effect. These results indicate that while ethylene effects on wilting were obvious 3 days after the treatment, cellular parameters were already affected at the end of the treatment. Since 1-MCP repressed these early ethylene effects, it was concluded that it interacts with ethyle

ne action at an early stage, long before apparent wilting.