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  secondary metabolites
Belyakov, Marine Microorganisms and Their Biologically Active Secondary Metabolites,
      
Analysis of Secondary Metabolites of Microscopic Fungi of the Genus Penicillium by Chromatographic Techniques
      
Occurrence of Indole Alkaloids among Secondary Metabolites of Soil Aspergillus Spp.
      
Secondary metabolites of three strains of Penicillium aurantiogriseumisolated from permafrost sediments were identified.
      
It was demonstrated that the fungus Penicillium expansum 2-7, a resident strain of the orbital complex Mir, which became dominant at the end of a long-term space flight, formed biologically active secondary metabolites (antibiotics).
      
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  secondary metabolite
Biological Evaluation of a Secondary Metabolite, 9-O-methylfusarubin, from Fusarium oxysporum
      
In many gram-negative bacteria, AHL are the key factors responsible for density-dependent regulation of exoenzyme and secondary metabolite production; they also participate in interaction between bacteria and higher organisms.
      
The strain KMM 3427, identified asBacillus subtilis, synthesized the secondary metabolite 2-p-hydroxyphenylalcohol (tyrosol), which is known to be an antifungal compound and may perform the function of chemical defence inVerongia sp.
      
nana is a cultivated variety of Taxus cuspidata and contains taxol, a valuable secondary metabolite of medical importance, both in their stems and leaves.
      
Nitric oxide (NO) has emerged as a key signaling molecule in plant secondary metabolite biosynthesis recently.
      
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  secondary products
Sorption Characteristics of "Food Fibers" in Secondary Products of Processing of Vegetable Raw Materials
      
At potentials more positive than that of the Co(+3) → Co(+4) oxidation, secondary products of electrochemical reaction form and are revealed by a cathodic reduction peak.
      
The effect of low-intensity laser radiation on the accumulation of secondary products of lipid peroxidation was studied in wheat (Triticum aestivum L.) tissue culture.
      
Casein is cleaved by acid hydrolysis and the high-molecular-weight secondary products formed are removed by adsorption on octadecyl-silica.
      
The level of lipid peroxidation secondary products measured as the content of thiobarbituric acid reactive species (TBARS) was increased in the cerebral cortex of PTZ-treated rats.
      
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  secondary metabolite product
Secondary metabolite product of Monascus, monacolin K, has been proven that it could be used as an antihypercholesterolemic agent.
      
  其他


Plant ecology and plant taxonomy respectively infiltrate into chemistry or phytochemistry, forming the phytochemistry ecology and the phytochemistry taxonomy. Realizing the intcrrelation of plants to insects and to bacteria on respect of chemistry ecology, in which the plant secondary metabolites act as a medium, favors the exploitation of natural products, such as the natural insecticides and the bacteriostatic agents. In photochemistry toxonomy's term the characteristic components used as the taxonomic signs...

Plant ecology and plant taxonomy respectively infiltrate into chemistry or phytochemistry, forming the phytochemistry ecology and the phytochemistry taxonomy. Realizing the intcrrelation of plants to insects and to bacteria on respect of chemistry ecology, in which the plant secondary metabolites act as a medium, favors the exploitation of natural products, such as the natural insecticides and the bacteriostatic agents. In photochemistry toxonomy's term the characteristic components used as the taxonomic signs are always the plant sccondary mctabolitcs, locating the positions of those compounds taxonomically may find the relevant plant resources like flavorings and spices.

植物生态学和植物分类学分别向化学或植物化学渗透形成植物化学生态和植物化学分类学。认识植物以次生代谢物为媒介与昆虫、植物与微生物之间的化学生态方面的相关性,有利开发大量有用的天然产品,例如天然防腐剂和天然抑菌剂。在植物化学分类学中,用来作为分类标志的特征性成分往往是植物次生代谢物质。了解这些化合物的分布,可能寻找到相关的植物资源,例如调味剂和增香剂。

This paper reported the relationship between callus growth and secondary metabolite of Sarcandra glabra with different culture conditions of lights, temperatures and pH values. The results demonstrated that the callus growth of dark culture showed better than white light and red light; but it was the blue light effect in callus culture of Sarcandra glabra.A good callus strain was induced by blue light culture, the relative increasing rate reached seven hundred fifty nine percent and yield of flavonoid glycosides...

This paper reported the relationship between callus growth and secondary metabolite of Sarcandra glabra with different culture conditions of lights, temperatures and pH values. The results demonstrated that the callus growth of dark culture showed better than white light and red light; but it was the blue light effect in callus culture of Sarcandra glabra.A good callus strain was induced by blue light culture, the relative increasing rate reached seven hundred fifty nine percent and yield of flavonoid glycosides per month 1 868 mg/1, the optimum temperature was around 26℃ and the optimume pH of callus growth was 5.5 but the optimum pH of callus production was 6.0.

报道了草瑚珊愈伤组织生长和次生代谢物与光、温度、pH不同的物理因子培养条件的关系。结果表明,暗培养的愈伤组织生长和代谢物含量较高,而蓝光在草珊瑚愈伤组织培养中,表现了蓝光效应,诱导出一个优良的愈伤组织系,其相对增长率和总黄酮月产率分别为759%,1.868g/L。最佳培养温度为26℃恒温,最适愈伤组织生长的培养基pH值为5.5;而最适愈伤组织代谢次级产物的生产培养基pH值为6.0。

Effects of biological factors,i, e. size of cell aggregates, subculture period, and inoculum density, on cell growth and production of anthocyanin pigment (a secondary metabolite)by suspended cultures of Perilla frutescens plant cells were investigated on a flask scale. It was found that anthocyanin content was lower in a culture inoculated with cells of sizes greater than 250μm,compared with cells with unscreened sizes or with their sizes smaller than 250μm. Subculture periods of 7 days and 10 days were suitable...

Effects of biological factors,i, e. size of cell aggregates, subculture period, and inoculum density, on cell growth and production of anthocyanin pigment (a secondary metabolite)by suspended cultures of Perilla frutescens plant cells were investigated on a flask scale. It was found that anthocyanin content was lower in a culture inoculated with cells of sizes greater than 250μm,compared with cells with unscreened sizes or with their sizes smaller than 250μm. Subculture periods of 7 days and 10 days were suitable for the cell cultures because favorable growth and a high level of anthocyanin content were maintained during a long period of subculture. An inoculum density 50g/L(Wet cell)was the best for both the cell growth and the pigment accumulation in flask cultures of P. frutescens cells.

应用摇瓶培养研究了生物学因子,即:细胞聚集体大小、继代周期和接种量,对紫苏悬浮细胞生长和次生代谢物花色素产生的影响。结果表明:与未经筛选的或细胞聚集体小于250μm的细胞团块相比,大于250μm的细胞团块作为接种细胞时,培养所得的花色素含量较低。7—10无为合适的继代周期,在长时期的继代过程中,细胞生长良好、并且色素含量也高。实验还表明,每升接种50克湿细胞最适合于细胞增殖与色素积累。

 
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