论文信息 - 1‐methylcyclopropene extends Cymbidium orchid vaselife and prevents damaged pollinia from accelerating senescence

1‐methylcyclopropene extends Cymbidium orchid vaselife and prevents damaged pollinia from accelerating senescence

Abstract A single postharvest application of 1‐methylcyclopropene (MCP) was effective in prolonging vaselife of Cymbidium orchids by 6 or 7 days, to c. 19 days. It also prevented repeated applications of ethylene shortening the vaselife of Cymbidium orchids. The anti‐ethylene effect of one MCP treatment persisted throughout three successive challenges with ethylene at 5‐day intervals. A supra‐optimal concentration of MCP (500 ppb) showed no adverse effects. MCP was also effective in protecting Cymbidium orchids against accelerated senescence caused by damage to the pollinia. Individual flowers with damaged pollinia senesced even more rapidly than ethylene‐treated intact flowers. In the presence of MCP, flowers with damaged pollinia had a vaselife almost equal to that of undamaged flowers. This is a significant finding for the orchid export industry.

J. Heyes | J. Johnston

[1] D. Somhorst,et al. The Role of Ethylene in Interorgan Signaling during Flower Senescence , 1995, Plant physiology.

[2] R. Porat,et al. 1-Methylcyclopropene inhibits ethylene action in cut phlox flowers , 1995 .

[3] M. Serek,et al. Inhibition of ethylene-induced cellular senescence symptoms by 1-methylcyclopropene, a new inhibitor of ethylene action , 1995 .

[4] R. Porat,et al. An increase in ethylene sensitivity following pollination is the initial event triggering an increase in ethylene production and enhanced senescence of Phalaenopsis orchid flowers , 1995 .

[5] T. Ashman,et al. How long should flowers live? , 1994, Nature.

[6] X. S. Zhang,et al. Interorgan regulation of ethylene biosynthetic genes by pollination. , 1993, The Plant cell.

[7] E. Woltering. Interrelationship between the Different Flower Parts during Emasculation-Induced Senescence in Cymbidium Flowers , 1990 .

[8] D. Somhorst,et al. Regulation of anthocyanin synthesis in Cymbidium flowers: effects of emasculation and ethylene. , 1990 .

[9] E. Woltering. Interorgan translocation of 1-aminocyclopropane-1-carboxylic Acid and ethylene coordinates senescence in emasculated cymbidium flowers. , 1990, Plant physiology.

[10] A. Halevy,et al. Ethylene evolution and sensitivity in cut orchid flowers , 1985 .

[11] S. P. Burg,et al. Ethylene and auxin participation in pollen induced fading of vanda orchid blossoms. , 1967, Plant physiology.