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Ethylene sensitivity in orchid flowers and its control using 1-MCP: A review

Parviz Almasi, Mahmud Tengku Muda Mohamed

doi: 10.5455/faa.80674                                                 pp: 10 – 20

Abstract

Ethylene is produced as a gaseous growth regulator in all plants and their constructive parts such as roots, stems, leaves, flowers and fruits. It is considered as a multifunctional phytohormone that regulates both growth including flowering, fruit ripening, inhibition of root growth, and senescence such as senescence of leaves and flowers and etc. In addition, exposure to external ethylene is caused some changes that are often undesirable and harmful. Some flowers are more sensitive to others and when exposed to ethylene; their aging process is hastened. 1-MCP is an exogenous and endogenous ethylene action inhibitor, which binds to the ethylene receptors in the plants and prevents the ethylene-dependent reactions. The binding affinity of 1-MCP for the receptors is about 10 times more than ethylene. Hence, 1-MCP can be a potential candidate for controlling of ethylene injury in horticultural crops. This review integrates knowledge of ethylene biosenthesis in the
plants and also mode of action of 1-MCP in preventing of ethylene injury.

Keywords: Ethylene injury, ethylene biosynthesis, ethylene sensitivity, 1-MCP effects

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