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    Studies on the Toxins of Fusarum solani Ⅱ.Correlation Between Toxin and Disease Resistance of Pea Cultivars
    茄病镰刀菌毒素的研究Ⅱ.毒素与豌豆品种抗病性的关系
    Factors Affecting Hyphae Growth and Toxin Production of Alternaria brassicae
    白菜黑斑病菌(Alternaria brassicae)菌丝生长和毒素产生条件的研究
    oxysporum f. sp. cubense is 162.1 μg/ml; the dose of the toxin causing toxic degree 50 of the banana plantlets treated with the crude toxin for 120 h is 31.62 μg/ml.
    结果表明,香蕉枯萎病菌培养滤出液中的镰刀菌酸含量为162.1 μg/ml,粗毒素处理120 h引致香蕉苗枯萎(以病情指数表示)达50的剂量为31.62 μg/ml;
    The toxic degree of the toxin on banana plantlets decreases remarkably after the toxin treated in strong acid medium (pH≤5) or strong alkali medium (pH≥11) for 1 h, as under 100℃ or 121℃ respectively for 15 min.
    粗毒素在强酸或强碱(pH≤5或pH≥11)介质中处理1 h或100℃以上热处理15 min后致病性显著下降。
    Effect of toxin from Cladosporium fulvum on CAT and protective substance of tomato seedling
    叶霉粗毒素对番茄幼苗CAT酶及保护性物质的影响
    Influence of the toxin of Phytophthora capsici for the microconstruction of pumpkin leaves
    南瓜疫病菌(Phytophthora capsici)毒素对寄主叶片超微结构的影响
    Resistance selection of Plutella xylostella by Cry1Ac toxin and Bt formulation and biological fitness of the resistant populations
    小菜蛾对Bt毒素Cry1Ac和Bt制剂抗性的选育及其抗性种群的生物学适应性
    Pathogenic Mechanism of Toxin Produced by Phytophthora Capsici Leon. and Resistant Materials Screening
    南瓜疫病菌(Phytophthora capsici Leon.)毒素致病机理及抗源筛选研究
    Relationship between Toxin Produced by Tomato Leaf Mould and Resistance of Tomato Varieties
    叶霉病菌毒素与番茄品种抗病性关系的研究
    7. The optimum conditions for toxin production of P.parasitica were 62 medium, pH4-6, 25-28 , and culturing for 28 days.
    7.研究了寄生疫霉毒素产生的最适条件:G:培养液、pH值4一6,温度25一28℃及黑暗与光照交替条件下培养28天以上。
    All these 5 isolates were cultured in PD, PS, corn powders , modified Fries, Czapek-Dox and Rrichard media respectively then the bioactivity of the culture filtrate, crude toxin to Digitaria sanguinalis L.and Amaranthus retroflexus L. was tested.
    将所得5株菌株分别在PD培养基、PS培养基、玉米粉培养基、改良Fries培养基、Czapek-Dox培养基和Richard培养基中进行培养,所得培养滤液、粗毒素对马唐和反枝苋的除草生物活性进行了测定。
    In vitro screening of resistant mutants and Physiological disease resistance of eggplant Verticillium dahliae were studied with Verticillium dahliae toxin and tissueculture technology systematically .
    本文以茄子黄萎病菌毒素液为选择剂,结合组织培养技术离体筛选茄子抗黄萎病突变体,并对不同抗性品种的茄子幼苗和愈伤组织的抗病生理进行了系统的研究。
    2. Seed germination, root growth and seedling growth and pathogonicity of leaves were inhibited by toxin.
    2.番茄叶霉粗毒素对不同番茄品种种子萌发、胚根、胚芽生长有抑制作用和对叶片有致病性。
    Sensibility of different varieties to toxin was different.
    不同品种对粗毒素的敏感性具有一定的差异;
    3. After treated by toxin, changes of some protective enzymes in the resistant and susceptible varieties indicated that changes of SOD, POD and CAT were similar: the activities of enzymes were declined;
    3.经粗毒素处理后,抗、感品种细胞内保护酶活性变化结果表明,对于SOD、POD、CAT酶活性,抗病品种的活性均高于感病品种,从平均水平上看,酶活性下降,且抗病品种下降比率小于感病品种。
    7.There were changes in POD isozyme and soluble protein bands after treated by toxin.
    7.番茄幼苗经粗毒素处理后,能引起不同抗病类型品种SOD、POD同工酶及可溶性蛋白图谱变化。
    Using the crude toxin, the study investigated the effect of capsicum wilt on the germination of seeds, the growth of seedlings, and the elongation of radicel in three cultivars of pepper, 'Nongchengjiao 2', '0127', and '0171'.
    2.用查彼克液体产毒培养基培养辣椒枯萎病病原菌,取其培养滤液作为粗毒素,测试了毒素液对“农城椒2号”、“0127”、“0171”三个基因型种子发芽、幼苗生长、胚根伸长的作用。
    Using the crude toxin, the research investigated the effect of Phytophthora capsici on the leaf of pepper, the germination of pepper seeds, the growth of seedlings, the growth of pepper radicel, and the callus of pepper.
    1.用胡萝卜汁培养液培养辣椒疫病病原菌,其培养滤液为辣椒疫病病原菌粗毒素,测定了粗毒素对辣椒叶片、辣椒种子发芽率、辣椒种子胚根生长、辣椒幼苗生长和辣椒愈伤组织的影响。
    The experimental results showed that the crude toxin of Phytophthora capsici could inhibit the germination of seeds, the growth of seedlings, and the growth of pepper radicel and the callus of pepper extremely.
    结果表明,粗毒素能使辣椒叶片产生与疫病病原菌侵染类似的水渍状褐腐斑,抑制辣椒种子的发芽率,抑制辣椒幼苗和胚根的生长,抑制辣椒愈伤组织生长,并且粗毒素的这些抑制作用随着其浓度的升高而变强,不同品种所得出的实验结果一致。
    Botrytis cinerea Persoon isolated from Fraguria ananassa was grown well in Peberdy's liquid medium(pH3-4) at 25℃ and produced toxin which inhibits the cell activity of the callus of Fraguria ananassa.
    草莓灰霉病菌(Botrytis cinerea Persoon)在25℃、pH3~4的Peberdy培养基中生长良好,并可产生引起草莓愈伤组织细胞死亡的毒素。
 

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