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hypersensitive reaction     
相关语句
  过敏反应
     carotovora CSDS001 elicits hypersensitive reaction (HR) in tobacco. From the ge- nomic libraries of Erwinia carotovora subsp. carotovora CSDS001, the hrpNCSDS001 gene (GenBank number AY939927), was isolated.
     carotovora CSDS001菌株具有可直接诱导烟草过敏反应特征,从构建的CSDS001菌株基因组文库,鉴定、克隆到hrpNCSDS001基因,GenBank登录号AY939927;
短句来源
     Purified immune serum F(ab)2 showed no antibody-mediated reaction, no side effect and no hypersensitive reaction.
     提纯后的免疫血清F(ab)2无抗体-介导反应,无副作用及过敏反应
短句来源
     The results showed that the mouse oral LD50 of this disinfectant was 6 329 mg/kg (body weight), cumulative coefficient K was > 5 and no hypersensitive reaction occurred in guinea-pig skin allergic reaction test.
     结果,该剂对小鼠经口LD50为6329mg/kg(体重),蓄积系数K>5; 豚鼠皮肤变态反应试验未出现过敏反应;
短句来源
     Elicitins, proteinaceous elicitors produced by species of two oomycetes genera, Phytophthora and Pythium, induce hypersensitive reaction (HR) and systemic acquired resistance (SAR) in tobacco. They can be classified into basic elicitins produced by species such as Phytophthora crytogea and acidic elicitin produced by species such as P. parasitica.
     Phytophthora和Pythium的许多种能向细胞外分泌一类小分子量的蛋白质,统称为elicitins。 Elicitins在烟草上能引起过敏反应(hypersensitive response,HR)和系统获得抗性(systemic acquired resistance,SAR)。
短句来源
     Testing hypersensitive reaction on tobacco and the enzyme activity on poplar I-895,the results showed that the strong active compound of CFE was concentrated on L9,but on J14 of CME.
     将4个组分进行烟草叶片过敏反应和I-895杨酶活性的诱导,结果表明,菌丝激发子强活性物质集中在J14组分; 而滤液激发子强活性物质集中在L9组分。
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  过敏性反应
     H 2O 2 accumulation in papillae and hypersensitive reaction cell was observed by DAB assay.
     用DAB(二氨基联苯胺)观察到H2O2在乳突和过敏性反应细胞中积累。
短句来源
     In plant bacterial pathogens, there is a gene family that regulates the bacteria triggering hypersensitive reaction and pathogenicity (hrp) in plant.
     植物病原细菌中,调控植物过敏性反应和致病性反应的基因称为过敏性反应和致病性基因(hypersensitive reaction and pathogenicity,hrp基因)。
短句来源
     H 2O 2 can induce hypersensitive reaction and possibly involved in hypersensitive reaction resistance of barley to powdery mildew fungus.
     H2O2可诱导大麦的过敏性反应,与大麦对白粉病的过敏性反应抗性有关。
短句来源
     Membrane Lipid Peroxidation and Hypersensitive Reaction Induced by a Glycoprotein Elicitor from Magnaporthe grisea in Rice Leaves
     稻瘟菌糖蛋白激发子诱导的水稻叶片膜脂过氧化及过敏性反应
短句来源
     H 2O 2 was detected in the epidermal cell wall subjacent to the primary tube from 6 h after inoculation and subjacent to appressorium from 15 h. The earliest time point for observation of H 2O 2 in hypersensitive reaction cell is 18 h after inoculation.
     接种6h后在初生芽管的乳突以及接种15h后在附着胞下面的乳突及晕圈处有H2O2的积累,接种18h后在过敏性反应的表皮细胞可检测到H2O2的积累。
短句来源
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  致敏反应
     Analysis on the Hypersensitive Reaction of Yuxingcao Injection
     鱼腥草注射液的致敏反应分析
短句来源
  “hypersensitive reaction”译为未确定词的双语例句
     The changes of RBC-C_3bR, SIL-2R and CIC in type Ⅲ hypersensitive reaction rabbit model treated with Buyang huanwu mixture
     补阳还五合剂对家兔实验性Ⅲ型超敏反应中RBC-C_3bR、SIL-2R和CIC的影响
短句来源
     (2) The bioactivity of two crude elicitors were studied and showed that the lowest effective dosage of hypersensitive reaction on tobacco injected by CME was between 8.01mg/ml to 48.07mg/ml carbohydrates (glucose equivalents), the lowest effective dosage injected by CFE was between 8.01mg/ml to 48.07mg/ml carbohydrates (glucose equivalents).
     (2)对两种激发子的生物活性进行了测定,结果表明:菌丝激发子粗提物在诱导烟草叶片产生过敏反应的有效浓度处于8.01mg/ml 至48.07mg/ml(葡萄糖当量)之间,而滤液激发子粗提物诱导烟草叶片产生过敏反应的有效浓度处于6.85mg/ml 至41.07mg/m(l葡萄糖当量)之间。
短句来源
     Programmed Cell Death (PCD), a physiological cell death process, is associated with the differentiation of vessel and sieve tube, the propagation, senescence, the hypersensitive reaction of plants, and so on.
     细胞程序性死亡(Programmed Cell Death,PCD)与导管和筛管的分化、繁殖、衰老、超敏反应等过程紧密相关。
短句来源
     Research of Diagnosis Deer Tuberculosis with the Method of Hypersensitive Reaction
     应用变态反应方法诊断鹿结核病的研究
短句来源
     The results indicated that the Ca~(2+) in healthy leaves mainly distributed in intercellular spaces and vacuoles. After innoculated with TMV, intercellular Ca~(2+) transported into cytosal and accumulated only in and around lesions of hypersensitive reaction site.
     结果发现,枯斑三生烟健叶中的Ca2+主要分布于细胞间隙和液泡,接种TMV后,细胞间隙中的Ca2+逐渐向细胞内转移,在接种后48 h,Ca2+主要分布于过敏性坏死细胞和近坏死区细胞,远坏死区细胞间隙缺Ca2+;
短句来源
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  hypersensitive reaction
Crosses of the transgenic tomato lines with cultivars containing either the Tm-2 or the Tm-22 gene demonstrated that both genes are able to elicit a hypersensitive reaction in response to movement proteins from resistance inducing ToMV strains.
      
101-102B) on which the viable cells of the same avirulent race-32 produced hypersensitive reaction (HR).
      
Inhibition of susceptible water soaking and/or hypersensitive reaction in cotton by exopolysaccharide of avirulentXanthomonas ca
      
Incompatible combinations of plant and plant bacteria produce an incompatible reaction at different rates, producing, besides the typical hypersensitive reaction, also darkening, yellowing, and fading.
      
Tubers of 46 R-gene potato clones were inoculated with races ofPhytophthora infestans, which either.1.caused a hypersensitive reaction on the leaves of the clone or2.could infect and spread in the leaves.
      
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Surface sterilized wheat leaf segments infected with rusts (chiefly P. triticina) were found to be capable of producing large amounts of uredospores in complete darkness when sufficient nutrients were furnished. Sporulation continued for 40-50 days in culture and finally some rust mycelia were found to extend from within the leaf segments on to surrounding media. It was proved through TTC staining, plasmolysis test and microscopic examination that host tissues remained alive only for about 10 days. These observations...

Surface sterilized wheat leaf segments infected with rusts (chiefly P. triticina) were found to be capable of producing large amounts of uredospores in complete darkness when sufficient nutrients were furnished. Sporulation continued for 40-50 days in culture and finally some rust mycelia were found to extend from within the leaf segments on to surrounding media. It was proved through TTC staining, plasmolysis test and microscopic examination that host tissues remained alive only for about 10 days. These observations verified that wheat rusts were able to grow and sporulate on dead host tissues. A critical discussion on modern concept of obligate parasitism as well as the biological basis of hypersensitive reaction was presented. Among different carbon sources, glucose, sucrose, fructose, and glycerin markedly enhanced sporulation on leaf segments so cultured; peptone was proved to be the best nitrogen source although inorganic nitrogen could also be utilized. Some leaf segments produced black uredo pustules with dead spores. This was proved to be due to the fact that phenolic compounds were oxidized through the action of polyphenoloxidase and more toxic quinone compounds were accumulated, and finally black pigments were produced. The oxidation of phenolic compounds could be inhibited by the addition of ascorbic acid to the media, and blackening of spores was successfully checked. Uredospores produced on leaf segments were transfered aseptically to different synthetic media and on some of them limited white colonies developed. The nutrient requirements for growth were essentially the same as those for leaf segment cultures. In respiration experiments with labeled glucose, a strong HMP tendency was observed in germinating uredospores as well as diseased tissues while healthy tissues exhibited a rather strong EMP tendency. More C~(14) was recovered in organic acid moiety of diseased tissues. No appreciable differences of C~(14) recoverage between healthy and diseased tissues in chlorophyll, sugar and amino acid moieties were found. It appears that there were no correlations between sugar or phenol contents and rust resistance among different wheat varieties. However, phenol contents of resistant varieties were invariably higher in the inoculated plants than in the controls, while a reversed situation was observed in susceptible varieties. Susceptible tissues contained more ascorbic acid with higher dehydrogenase activity than resistant, tissues. These facts were discussed on the basis of current hypothesis of rust resistance.

感染叶锈菌(Puccinia triticina)的小麦病叶段經消毒后在无光条件下飼以充足养分能产生大量夏孢子堆;并在培养后40—50天仍能继續形成新鲜孢子堆,部分菌絲从叶段切面生出。經三苯基四唑化氯染色,质壁分离测定及切片鏡检观察証明寄主細胞在培养中存活的时限为10天左右。这些資料说明小麦锈菌具有一定腐生能力,作者对“绝对寄生性”的概念以及过敏反应的生物学基础作了評論。不同碳源中葡萄糖、果糖、蔗糖及甘油对叶段上孢子堆的形成都有极明显的促进作用;氮源以蛋白腖为佳,无机氮亦可代替。培养过程中夏孢子堆有时变黑而死亡,試驗証明这是由于酚类物质經多元酚酶作用而氧化,产生对菌具有更強毒性的醌类物质,最后形成黑色素。这一过程可以被还原性的抗坏血酸抑制。叶段上所产生夏孢子在合成培养基上能形成白色小菌落,对碳氮源的要求大体与叶段培养相同。飼标記葡萄糖(G_1~(14)及G_(1~6)~(14)标記)后测定証实锈菌及病組織葡萄糖酵解的HMP趋势較強,健組織则EMP趋势較強。病組織有机酸含G~(14)的量显著高于健組織;病健組織間叶綠素、醣及氨基酸中G~(14)的含量則无差异。抗、感病品种間醣的含量似无明显差异,酚的绝对含量与抗...

感染叶锈菌(Puccinia triticina)的小麦病叶段經消毒后在无光条件下飼以充足养分能产生大量夏孢子堆;并在培养后40—50天仍能继續形成新鲜孢子堆,部分菌絲从叶段切面生出。經三苯基四唑化氯染色,质壁分离测定及切片鏡检观察証明寄主細胞在培养中存活的时限为10天左右。这些資料说明小麦锈菌具有一定腐生能力,作者对“绝对寄生性”的概念以及过敏反应的生物学基础作了評論。不同碳源中葡萄糖、果糖、蔗糖及甘油对叶段上孢子堆的形成都有极明显的促进作用;氮源以蛋白腖为佳,无机氮亦可代替。培养过程中夏孢子堆有时变黑而死亡,試驗証明这是由于酚类物质經多元酚酶作用而氧化,产生对菌具有更強毒性的醌类物质,最后形成黑色素。这一过程可以被还原性的抗坏血酸抑制。叶段上所产生夏孢子在合成培养基上能形成白色小菌落,对碳氮源的要求大体与叶段培养相同。飼标記葡萄糖(G_1~(14)及G_(1~6)~(14)标記)后测定証实锈菌及病組織葡萄糖酵解的HMP趋势較強,健組織则EMP趋势較強。病組織有机酸含G~(14)的量显著高于健組織;病健組織間叶綠素、醣及氨基酸中G~(14)的含量則无差异。抗、感病品种間醣的含量似无明显差异,酚的绝对含量与抗病性无相关,但抗病品种受病后酚类物质增加,感病品种則相反。感病組織中去氫酶活性及抗坏血酸含量則較抗病組織为高。对抗锈机制的理論也作了討論。

Inoculation experiments and microscopic observations were made to study the infection of Erysiphe graminis tritici on leaves of several species of Gramineae. The results show that E. grarninis tritici were able to develop on the leaves of barley, oat or Roegnaria kamoji, and that infection did occur when the conidia produced on the above mentioned plants were inoculated back to wheat. During the stages of germination of conidia and formation of appressoria, no significant difference on percentage and rate was...

Inoculation experiments and microscopic observations were made to study the infection of Erysiphe graminis tritici on leaves of several species of Gramineae. The results show that E. grarninis tritici were able to develop on the leaves of barley, oat or Roegnaria kamoji, and that infection did occur when the conidia produced on the above mentioned plants were inoculated back to wheat. During the stages of germination of conidia and formation of appressoria, no significant difference on percentage and rate was observed on any plants examined. It was found that the fungus could penetrate in barley, oat and Roegnaria kamoji, and form normal haustoria and hyphae growth on the surface of host leaves Slight sporulation was observed in some colonies except in barley cv. Zao-shu No 3, which produced no conidia. On rye, the fungus invaded the epidermal cells of leaves, but baustoria failed to develop and no hyphae were observed, Most invaded cells responded with a hypersensitive reaction. The results suggest that the wild grasses may be considered as sources of primary infection for powdery mildew of cereals.

在实验室接种的条件下,证实了小麦白粉菌能侵染大麦(品种:“天津1号”;“757”;“矮杆齐”)、鹅观草和燕麦。它在这些植物上所产生的分生孢子,再接种于小麦亦发生正常侵染。接种在大麦“早熟3号”上的菌,能产生出菌丝,但不产生分生孢子。接种在“秦岭黑麦”上的菌只能达到侵入阶段,并且多数的受侵表皮细胞发生明显的过敏性死亡。据试验结果认为,某些野生禾草有可能是小麦白粉病的初侵染来源。

Ginseng root polysaccharides(GRP)was extracted from native ginseng (Panax ginseng C.A.Meyer).The dosage of GRP used in this paper was calculated according to the content of polysaccharides. GRP administered orally 100—200 mg/kg for 5—8 days restored the cyclophosphamide-suppressed phagocytosis of macrophages,hemolysin formation, and delayed hypersensitive reaction in mice to normal level.

人参根多糖灌胃给药100—200mg/kg,对环磷酰胺所致小鼠巨噬细胞吞噬功能抑制、溶血素形成抑制和迟发型超敏反应抑制均有恢复正常作用。

 
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