Details
| Original language | English |
|---|---|
| Pages (from-to) | 229-232 |
| Number of pages | 4 |
| Journal | Physiologia plantarum |
| Volume | 94 |
| Issue number | 2 |
| Publication status | Published - 28 Apr 2006 |
| Externally published | Yes |
Abstract
Ethylene is known to accelerate flower senescence, but the sequence of events that links its interaction with the tissue and the final senescence symptoms is still obscure. Recently, 1‐methylcyclopropene (1‐MCP) was found to inhibit ethylene‐induced wilting in flowers. This work was carried out in order to investigate the effects of 1‐MCP on cellular senescence symptoms in petunia flowers following expossure to ethylene. Cut petunia (Petunia hybrida) flowers that were exposed to ethylene for 12 h at concentrations of 1–12 ppm 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 fresh weight 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 ethylenes effects on wilting were obvious 3 days after the treatment, cellular parameters were affected already at the end of the treatment. Since 1‐MCP repressed these early ethylene effects, it was concluded that it interferes with ethylene action in petunia flowers at a rather early stage, long before apparent wilting.
Keywords
- 1‐methylcyclopropene (1‐MCP), Ethylene, leakage, lipid fluidity, Petunia hybrida, senescence
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Physiology
- Biochemistry, Genetics and Molecular Biology(all)
- Genetics
- Agricultural and Biological Sciences(all)
- Plant Science
- Biochemistry, Genetics and Molecular Biology(all)
- Cell Biology
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In: Physiologia plantarum, Vol. 94, No. 2, 28.04.2006, p. 229-232.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Inhibition of ethylene‐induced cellular senescence symptoms by 1‐methylcyclopropene, a new inhibitor of ethylene action
AU - Serek, M.
AU - Tamari, G.
AU - Sisler, E. C.
AU - Borochov, A.
PY - 2006/4/28
Y1 - 2006/4/28
N2 - Ethylene is known to accelerate flower senescence, but the sequence of events that links its interaction with the tissue and the final senescence symptoms is still obscure. Recently, 1‐methylcyclopropene (1‐MCP) was found to inhibit ethylene‐induced wilting in flowers. This work was carried out in order to investigate the effects of 1‐MCP on cellular senescence symptoms in petunia flowers following expossure to ethylene. Cut petunia (Petunia hybrida) flowers that were exposed to ethylene for 12 h at concentrations of 1–12 ppm 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 fresh weight 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 ethylenes effects on wilting were obvious 3 days after the treatment, cellular parameters were affected already at the end of the treatment. Since 1‐MCP repressed these early ethylene effects, it was concluded that it interferes with ethylene action in petunia flowers at a rather early stage, long before apparent wilting.
AB - Ethylene is known to accelerate flower senescence, but the sequence of events that links its interaction with the tissue and the final senescence symptoms is still obscure. Recently, 1‐methylcyclopropene (1‐MCP) was found to inhibit ethylene‐induced wilting in flowers. This work was carried out in order to investigate the effects of 1‐MCP on cellular senescence symptoms in petunia flowers following expossure to ethylene. Cut petunia (Petunia hybrida) flowers that were exposed to ethylene for 12 h at concentrations of 1–12 ppm 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 fresh weight 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 ethylenes effects on wilting were obvious 3 days after the treatment, cellular parameters were affected already at the end of the treatment. Since 1‐MCP repressed these early ethylene effects, it was concluded that it interferes with ethylene action in petunia flowers at a rather early stage, long before apparent wilting.
KW - 1‐methylcyclopropene (1‐MCP)
KW - Ethylene
KW - leakage
KW - lipid fluidity
KW - Petunia hybrida
KW - senescence
UR - http://www.scopus.com/inward/record.url?scp=0029170064&partnerID=8YFLogxK
U2 - 10.1111/j.1399-3054.1995.tb05305.x
DO - 10.1111/j.1399-3054.1995.tb05305.x
M3 - Article
AN - SCOPUS:0029170064
VL - 94
SP - 229
EP - 232
JO - Physiologia plantarum
JF - Physiologia plantarum
SN - 0031-9317
IS - 2
ER -