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鸢尾属植物的引种栽培 总被引:6,自引:0,他引:6
从1962年开始,我们就对鸢尾属植物进行引种栽培实验,结果表明:鸢尾属植物多数种在西安地区自然条件下,能正常生长发育。鸢尾属植物具有花姿奇特,花色艳丽,花期甚长等优点,是绿化、美化、香化城市,装饰花坛、花径、花带、路旁及草坪的优良材料。本文对我园引种鸢尾属植物的形态特征、生物学与生态学特性、栽培技术及其在园林绿化中的利用意见进行了初步报道。 相似文献
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从陈化的鸢尾根状茎分离到产鸢尾酮的丝状真菌,以其作用于新鲜鸢尾根状茎,通过固体发酵产生了鸢尾酮。其中1株Rhizopusoryzae(94Y-01)表现最好。对培养基配方、培养温度、培养时间等发酵条件进行了报道。从发酵物提取得到的浸膏和凝脂,其理化指标分析及香气嗅评与传统鸢尾酮产品类似,经薄层层析和气相色谱-质谱(GC/MS)分析,表明含有鸢尾酮。 相似文献
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本文对葛花提取物鸢尾苷经酸解法得到鸢尾苷元的水解工艺及鸢尾苷和鸢尾苷元对乙醇脱氢酶的激活作用进行了研究.结果表明,葛花鸢尾苷酸水解的最佳条件为:固液比1∶1 (mg/mL),甲醇浓度50%,反应温度80℃,反应时间5h,盐酸浓度4%,此条件下,鸢尾苷水解率可达99%以上.鸢尾苷和鸢尾苷元对乙醇脱氢酶均有一定的激活作用,其激活率分别为127.35%和132.35%.酸水解提高了葛花异黄酮类物质的生物利用率. 相似文献
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发酵产鸢尾酮真菌的分离鉴定及生香特性的初步研究 总被引:18,自引:0,他引:18
从陈化的鸢尾根状茎分离到产鸢尾酮的丝状真菌,以其作用于新鲜鸢尾根状茎,通过固体发了产生了鸢尾酮,其中1株Rhizopus oryzae(94Y-01)表现最好。对培养基配方,培养温度、培养时间等发酵时间进行了报道。从发酵物提取得到的浸膏和凝脂,其理化指标分析及香气嗅评与传统鸢尾酮产品类似,经薄层层析和气相色谱-质谱(GC/MS)分析,表明含有鸢尾酮。 相似文献
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鸢尾属植物花色艳丽,花型多具特色,具有较高的观赏性,是园林绿化中常见的一类花卉,也是世界著名的宿根花卉之一。鸢尾属植物在盆栽观赏、切花生产、医药食品、园林绿化等领域均占有重要地位,可以产生良好的经济效益、环境效益、生态效益和社会效益。但鸢尾属植物繁殖方式主要为分株繁殖,增殖缓慢。为解决这类问题,并对鸢尾属资源开发与保护提供理论基础,本研究对近年来国内外鸢尾属植物的组织培养与栽培的进展与成果进行了综述。本综述对鸢尾属植物育种的研究方向进行了探讨与展望,旨在为鸢尾属植物的培育方法提供一定的科学依据。 相似文献
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长白山区几种观赏鸢尾 总被引:4,自引:0,他引:4
鸢尾,花姿优美,色彩典雅、庄重,是优美的庭院绿化观赏植物。据我们长白山野生花卉课题组调查,从海拔400米到2500米的岳桦林下均有分布。据不完全统计有如下7种:燕子花、玉蝉花、山鸢尾、溪荪、马蔺、野鸢尾、单花鸢尾。其中前5种,我们在海拔720米试验地中进行繁殖栽培,现长势良好,形成群体观赏效应,每年5—7月竞相开放,花期持续衔接,美丽无比,可用其妆点园林、美化庭院。 相似文献
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In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980. 相似文献
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N. P. Vesselkin Yu. V. Natochin 《Journal of Evolutionary Biochemistry and Physiology》2010,46(6):592-603
Evolution of living organisms is closely connected with evolution of structure of the system of regulations and its mechanisms.
The functional ground of regulations is chemical signalization. As early as in unicellular organisms there is a set of signal
mechanisms providing their life activity and orientation in space and time. Subsequent evolution of ways of chemical signalization
followed the way of development of delivery pathways of chemical signal and development of mechanisms of its regulation. The
mechanism of chemical regulation of the signal interaction is discussed by the example of the specialized system of transduction
of signal from neuron to neuron, of effect of hormone on the epithelial cell and modulation of this effect. These mechanisms
are considered as the most important ways of the fine and precise adaptation of chemical signalization underlying functioning
of physiological systems and organs of the living organism 相似文献
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