三种白肋烟及其F1杂交品种烘烤过程中生物碱组成的变化

Q3 Agricultural and Biological Sciences
B.I. Townes, S. J. Sheen
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引用次数: 0

摘要

摘要烟草幼叶和幼根中烟碱、去甲烟碱、烟碱(包括烟碱)和总生物碱的定量变化。以白肋21 (HN)及其烟碱转化(C)和低总生物碱(LN)等基因系为研究对象,进行了空气固化模拟。在叶片中,C系含有较少的总生物碱,但比HN系含有更多的去甲尼古丁,这表明一些生物碱可能在叶片生长过程中转化为去甲尼古丁。在根部未观察到转化现象。LN系的根组织在烘烤初期表现出较高的尼古丁分解率。在F1结果的基础上,总生物碱和尼古丁转化都受显性因素的支配。LN和C杂交品种的去烟碱/烟碱中间比值表明LN系中存在转化剂。在C系及其杂交种中,烟碱含量的下降主要发生在养护开始时,而去烟碱含量的上升则出现在养护第8天后。经处理后,木栗碱在叶片中的含量增加,而在根中的含量减少
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Changes of Alkaloid Composition During Curing in Three lsogenic Burley Tobaccos and Their F1 Hybrids
Abstract Quantitative changes of nicotine, nornicotine, anabasine (including anatabine), and total alkaloids in the juvenile leaves and roots of Nicotiana tabacum cv. Burley 21 (HN) and its isogenic lines selected for nicotine conversion (C), and low total alkaloids (LN) were studied during air-curing simulation. In the leaf, the C line contained less total alkaloids but more nornicotine than the HN line, suggesting that some may have been converted to nornicotine during leaf growth. The conversion phenomenon was not observed in the root. The root tissues of the LN line showed a high rate of nicotine decomposition at the inception of curing. On the basis of F1 results, both total alkaloids and nicotine conversion are governed by dominant factors. An intermediate nornicotine / nicotine ratio for the cured leaves of the LN and C hybrids indicated the presence of converter modifiers in the LN line. In the C line and its hybrids the decrease of nicotine content mainly occurred at the beginning of curing, whereas the nornicotine increase appeared after the eighth day of curing. The amount of anabasine was increased in the leaf but was decreased in the roots by curing
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来源期刊
Beitrage zur Tabakforschung International/ Contributions to Tobacco Research
Beitrage zur Tabakforschung International/ Contributions to Tobacco Research Agricultural and Biological Sciences-Agronomy and Crop Science
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