N-Phenyl-N'-alkoxyformamidines and Alkanamidines as Potent Flower-inducing Compounds in Asparagus Seedlings and Their Effects on Microsomal t-Cinnamic Acid 4-Hydroxylase

概要

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N-Phenyl-N'-alkoxyformamidines were found to have flower-inducing activity in dioecious Asparagus officinalis L. seedlings. Compounds that induced flowering in 95-100% of the seedlings at 40-100μM were developed by optimizing the structure, providing a new class of reagents useful for the selection of commercially preferable males that give a greater yield than the females. In the microsome preparation, the compounds inhibited t-cinnamic acid 4-hydroxylase (C4H) considerably less than the previously reported flower-inducing compounds, n-propyl N-(3, 4-dichlorophenyl)carbamate and piperonyl butoxide, a broad-spectrum P-450 inhibitor. These findings provide evidence that the inhibition of C4H is not the cause of flower induction. The amidines are considered to be an entity that acts on microsomes differently from the previous compounds, but that interacts commonly with the site that is responsible for flowering.
社団法人日本農芸化学会の論文
1994-12-23