Flowers hormone synthesis

The administration of antimetabolities of transcription and translation inhibits the induction of flowering in plants that are dependent on the length of day just as it does in those requiring vernalization. The inhibitors produce their effect partly in the leaf, partly in the shoot meristem. As far as their activity in the leaf is concerned, it may be assumed that they impair the activity of the genes that are involved in the synthesis of the flowering hormone. At least in part their effectiveness in the shoot meristem has to do with subsequent flower differentiation rather than with flower induction the activity of the genes for flower differentiation is interferred with. 

Synthesis of ethylene, a gaseous plant hormone involved in fruit ripening and flower senescence. 

Ethene is the hydrocarbon commercially produced in the greatest quantity in the United States. It is used in the synthesis of many plastics and commercially important alcohols. Ethene is also an important plant hormone. Induction of flowering and the ripening of fruit, as shown in Figure 2.10, are effects of ethene hormone action that can be manipulated by commercial growers. 

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