ACC INDUCTION OF XYLOGENESIS IN HORSERADISH ROOTS

机译：ACC诱导辣根根系的Xyloyesis

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Provision of 1-aminocyclopropane 1-carboxylic acid (ACC) in aqueous solution to the basal ends of horseradish root segments (Armoracia rusticana P. G. Gaertn., B. Mey. & Scherb., Brassicaceae) that, by isotope-dilution gas chromatography mass spectroscopic analysis had undetectable levels of endogenous ACC, induced the stoned fusiform cells of vascular cambium to become small-diameter tracheary elements (TEs), evidently without preceding cell division or cell enlargement. Neither control (provided water only) nor 2-chloroethylphosphonic acid (CEPA) - treated segments produced TEs. The synthetic auxin 1-naphthalene acetic acid (NAA) appeared to promote cambial cell division and radial expansion of cambial derivatives, but NAA had negligible inductiveeffect on xylogenesis. An ACC + NAA combination stimulated more cambial derivatives to differentiate into larger diameter TEs (i.e., vessel members) than occurred in response to ACC alone. These observations corroborate findings with conifers and hardwoods and indicate that ACC, rather than auxin, activates cells to differentiate into woody elements.

机译：在水溶液中提供1-氨基环丙烷1-羧酸（ACC）到辣根根段的基础末端（Armoracia Rusticana PG Gaertn，B. Mey。＆Scherb。，Brassicaceae），通过同位素稀释气相色谱法质谱分析具有不可检测的内源性ACC水平，诱导血管挂钩的扔石刺梭菌细胞变成小直径气管元素（TES），显然是细胞分裂或细胞扩大。既不控制（仅提供水）也不是2-氯乙基膦酸（CEPA）处理的区段产生的TES。合成的助体素1-萘乙酸（NAA）似乎促进了爪细胞分裂和爪衍生物的径向膨胀，但是NAA对Xyloyes作用具有可忽略的依法性。 ACC + NAA组合刺激了更多的扬声器衍生物，以区分为较大直径的TES（即容器构件），而不是响应ACC的响应而发生。这些观察结果用针叶树和硬木进行证实的结果，并表明ACC，而不是植物蛋白，激活细胞以区分为木质元素。

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《Annual Meeting of the Plant Growth Regulation Society of America》|2006年||共6页
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R. A. Savidge;
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ACC INDUCTION OF XYLOGENESIS IN HORSERADISH ROOTS

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