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首页> 外文期刊>Cytology and genetics >The effects of colchicine-induced autotetraploidy on selected characteristics of nuruozak (Salvia leriifolia)
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The effects of colchicine-induced autotetraploidy on selected characteristics of nuruozak (Salvia leriifolia)

机译：秋水仙碱诱导的四倍体对Nuruozak（Salvia leriifolia）选定特征的影响

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摘要

Nuruozak (Salvia leriifolia Benth), is a perennial herbaceous plant that is endemic to Iran and has recently been introduced as a medicinal plant. Artificial polyploidy is an efficient method to increase the production of secondary metabolites and can result in a whole spectrum of genetic, molecular and physiological modifications. In order to produce an autotetraploid population of nuruozak, various concentrations of colchicine (0.00, 0.05, 0.10, 0.20 or 0.50% w/v) were applied to the seeds and shoot apical meristems of young seedlings at the fourth leaf-stage. Microscopic studies, flow cytometry analysis and chromosome counting were conducted to select tetraploid nuruozak plants. Furthermore, the effects of ploidy level on the essential oil content and composition and biomass production of nuruozak plants, as well as selected structural and physiological characteristics were studied. Based on the number of the obtained tetraploids, treatment of shoot apical meristems was more efficient than seed treatment. Structural and phytochemical characteristics, chlorophyll content and photosynthetic rate were affected by the increase in ploidy level. In addition to the higher potential in biomass production, tetraploid plants produced eight new compounds which were absent in diploids.
机译：Nuruozak（Salvia leriifolia Benth）是伊朗特有的多年生草本植物，最近被引入药用植物。人工多倍体是增加次生代谢产物产量的有效方法，可导致整个遗传，分子和生理学修饰。为了产生努鲁扎克的四倍体种群，将不同浓度的秋水仙碱（0.00％，0.05％，0.10％，0.20％或0.50％w / v）施用于种子，并在第四片叶期幼芽的顶端分生组织。进行显微镜研究，流式细胞仪分析和染色体计数以选择四倍体努鲁扎克植物。此外，研究了倍性水平对努鲁扎克植物精油含量，组成和生物量产生的影响，以及选定的结构和生理特性。基于获得的四倍体的数量，茎尖分生组织的处理比种子处理更为有效。倍性水平的提高会影响其结构和植物化学特性，叶绿素含量和光合速率。除了具有更高的生物质生产潜力外，四倍体植物还产生了八种二倍体中不存在的新化合物。

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