【摘 要】
：
本试验研究了菊花花芽分化期超微弱发光、荧光和磷光发光强度以及核酸含量的变化.结果表明,菊花花芽分化起动期(Ⅱ)与未分化期(Ⅰ)相比,超微弱发光强度提高178.5％,荧光和磷光
【机 构】
：
潍坊科技学院贾思勰农学院山东寿光262700
论文部分内容阅读
本试验研究了菊花花芽分化期超微弱发光、荧光和磷光发光强度以及核酸含量的变化.结果表明,菊花花芽分化起动期(Ⅱ)与未分化期(Ⅰ)相比,超微弱发光强度提高178.5％,荧光和磷光发光强度分别提高133.4％和141.3％,DNA和RNA含量分别增加162.2％和132.1％,在总苞分化期(Ⅲ)、小花原基分化期(Ⅳ)和花冠形成期(Ⅴ),超微弱发光和荧光强度和DNA含量逐渐下降;磷光强度和RNA含量在Ⅲ期继续增加,之后在Ⅳ期和Ⅴ期下降;而长日照处理的对照菊花超微弱发光、荧光和磷光发光强度以及DNA和RNA含量变化幅度较小,基本保持较稳定的状态,表明菊花花芽分化期叶片生物发光水平提高,并与核酸代谢密切相关.
其他文献
青海生态保护优先是国家重大战略决策,青海最大潜力和最大价值是生态.土地沙化是青海生态的最主要问题之一,青海省沙化土地面积1246.17万hm2,占全省国土面积的17.4％,是全国荒
The formation of the Arid Central Asia(ACA)was associated with the uplift of the Qinghai-Tibet Plateau(QTP)and the development of East Asian Monsoon system(
The 70-kD heat shock proteins(Hsp70s)are highly conserved molecular chaperones that play essential roles in many cellular processes,including abiotic stress
Orchidaceae(orchids),with more than 20,000 species,is the largest family of monocots.They have great economic values because of their large,diverse,colorful
Salix psammophila and Caragana korshinskii are two typical native shrubs in the Mu Us Sandland,China.Both species not only play an important role in soil an
The transgenic ALDH21(Aldehyde dehydrogenase)cotton(Gossypium hirsutum)lines were used to test the drought tolerance and cotton yield in field condition.The
Background:Thecommon walnut(Juglans regiaL.),valued for both its nut and wood,is an ecologicallyimportant and temperate tree species native to the mountainous r
Background:Bryum argenteum is one of the most desiccation-tolerant bryophyte species,as well as a most important component of the Biological Soil Crusts(BSC
Background and aims The terminal branch orders of plant roots have been proposed as a short-livedephemeral modules specialized for resource absorption.The occur
本文对国标GB/T20574-2006蜂胶中总黄酮测定方法-分光光度法进行探讨,用该方法对高良姜素、白杨素、松属素、短叶松素和短叶松素-3-乙酸酯五种不同类型的蜂胶黄酮进行加样回