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感病
    Moreover, analysis of POD isoenzyme showed that the number of enzyme bands in resistant varieties varied directly with symptom of plant while in susceptible ones ,varied versely with it,especially mid- late period.
    同工酶谱分析表明:感病后,不同抗病品种的酶带数均增加,而感病品种各植株间过氧化物酶同工酶的变化与植株外部症状有差异,后期表现为病情越重,酶带数越少。
    The result showed: chitosan contents and the activities of active-oxygen- related enzyme system of the resistant varieties were higher than those of the susceptible ones;
    结果表明:抗性品种的壳聚糖含量、H2O2相关酶系活性均高于感病品种,而H2O2含量感病品种高于抗病品种,且在取样时期内一直处于上升趋势。
    Statistical analysis showed that there was significant difference in disease indexes between resistant cultivars Shaan 1155,2059 and susceptible ones Simian 2, Jimian 11 (P<0.05).
    抗病品种陕1155、陕2059与感病品种泗棉2号、冀棉11号之间,经统计分析表明,病情指数差异显著(p<0.05)。
    In resistant lines,the constitutive expression of CH1 and CH2 was more strong and the accumulation of CH2 and CH3 in intercellular spaces was faster than in susceptible ones.
    在抗病品系中 ,CH1和CH2有较高的本底表达水平 ,且CH2和CH3在胞间积累的速度也明显快于感病品系。
    There are 22 resistant varieties (accounting for 68.8%) and 10 susceptible ones (31.2%) among the 32 Rocketsalad varieties evaluated while there are 10 resistant varieties (accounting for 31.2%) and 22 susceptible ones ( 68.8%) among the 32 rapeseed varieties.
    所鉴定的32个芸芥品种中,抗病品种22个,占供试品种68.8%,感病品种10个,占供试品种31.2%,没有中感和高感品种。 所鉴定的32个甘蓝型油菜品种中,抗病品种10个,占供试品种的31.3%,感病品种22个,占供试品种的68.8%。
    Based on the reported sequences, 3 pairs of STS primers 4aF+4aR,4a+4b and 4G+4I were synthesized and used to analyze 31 wheat lines including 24 known Pm-carrying lines, 3 unknown Pm-carrying and 4 susceptible ones.
    根据已报道的序列,合成了3对STS引物4aF + 4aR、4a + 4b和4G + 4I ,对2 4个含已知抗白粉病基因的品种、3个含未知抗白粉病基因的品种和4个感病品种进行了分析。
    A comparison of the treatments with different salicylic acids concentrations indicated that the optimum concentration on the resistant varieties was 3mmol/L but the susceptible ones was 5mmol/L.
    不同的SA处理浓度相比较,抗(耐)病品种适宜浓度为3mmol/L,感病品种适宜浓度为5mmol/L。
    It was observed that there were more pith rays, more quantity of xylem parenchymacell and more thickness of vessel cell in stem, taproots and primary lateral roots in the resistant varieties, comparing with the susceptible ones.
    抗病品种的主根、一级侧根和茎的导管细胞壁较感病品种厚,髓射线数目和单位面积薄壁细胞数比感病品种多,抗病品种主根和茎的导管直径小,导管数目多,而一级侧根中抗病品种的导管直径大于感病品种。
    The resistant variety had relatively normal leaf ultrastructure, but the susceptible ones had destroyed chondriosome and chlorophyll. (4) Treated by the pathotoxin of optimal concentration,,the resistant soybean varieties had the higher activity of PAL in roots than that in control .
    (4)在适宜浓度毒素(稀释100倍)处理时,抗病品种根中PAL活性在整个病程中几乎都是高于对照,茎中次之,叶中最不敏感,而感病品种在整个病程PAL活性虽然在某些阶段有一定的升高,但幅度不大,在病程其它阶段PAL下降幅度远大于升高幅度。
    The results showed that the contents of the products from phenylpropanoid metabolism i.e. lignin, phenoid and citrus phytoalexin DMC, etc. , hi resistant citrus tissues were higher than susceptible ones.
    parasitica抗性的关系,结果表明:在健康组织中,抗病类型柑桔中苯丙烷代谢的产物木质素、酚类物质及柑桔植保素DMC的含量高于感病类型;
    After citrus was infected by P.parasitica, the contents of these products in resistant tissues rose faster, and peak values higher, than the susceptible ones.
    在病原侵入后,抗性类型中这些物质的含量升高速度快、峰值高,感病类型柑桔中这些物质的含量升高速度慢,只在发病后期才出现峰值。
    In healthy citrus tissues, the activities of PAL, a key enzyme in phenylpropanoid metabolism, were higher in resistant types than in susceptible ones.
    同时,在健康的柑桔组织中,苯丙烷类代谢的定速酶PAL活性也是抗病类型高于感病类型;
    The results indicated that there were DMC whether in healthy citrus tissues or in infected tissues, whether in the branches or in the leaves. The contents of DMC hi resistant types were higher than in susceptible ones.
    parasitica菌丝生长的影响,结果表明:无论是健康柑桔组织还是感病组织,无论是枝条还是叶片中均存在DMc,不同抗性的柑桔所含DMC的量不同,抗性类型含有极高的DMc,枝条中DMc的含量高于叶片。
    Since there existed a significant interaction of variance between plant host line and SA-treatment, the effect of induced resistance were ranged about 70% in tolerant pepper lines, 40% in resistant ones, and 18%~23% in susceptible and high susceptible ones.
    抗病品系居中,为40%左右; 感病、高感品系的诱抗效果较差,只有18%~23%。
    The lignin content and activity of PPO, POD and PAL in pepper seedlings by SA-treatment were much higher than that in untreated control after challenge inoculation with P capsici, and this kind of increment came more rapid and earlier in the resistant and tolerant pepper lines than in susceptible and high susceptible ones.
    经SA诱导的供试品系与未经诱导的相同品系相比,挑战接种后木质素含量和PPO、PAI习、POD活性的增强幅度更大,且有新的POD谱带出现、谱带表达增强以及原有谱带的缺失。 其中抗、耐病品系的增加早且增加幅度高于感病、高感品系。
    The results showed: POD,PPO,chitinase andβ-1,3-glucanase activities of the resistant varieties were higher than the susceptible ones in either diseased soil or non-diseased soil;
    结果表明:病地和无病地上抗病品种比感病品种具有较高的过氧化物酶、多酚氧化酶、几丁质酶和β-1,3-葡聚糖酶活力;
    Similarly,the resistant varieties had higher ASA content than the susceptible ones
    抗病品种抗坏血酸含量高而感病品种含量低;
    In vivo, the peak of PMG activity appeared formerly and the peak of Cx activity appeared later whether in resistant variety or in susceptible ones after inoculation.
    2.2 活体内细胞壁降解酶活性的变化 活体内,无论抗感品种接种炭疽菌后,均先出现 PMG 活性高峰,后出现 Cx 活性高峰; 抗病品种的细胞壁降解酶活性要低于中感和感病品种,但酶活高峰出现较早。
    2 Sugars contents and invertase activity in resistant rapeseed cultivars were increased faster and higher than susceptible ones after oxalic acid treatment.
    2 子叶蔗糖酶活性与可溶性糖含量在草酸处理初期明显增加,抗病品种比感病品种增加得更早更快。
    At adult plant stage, contents of soluble sugar and activity of invertase in resistant cultivar were lower than in susceptible ones.
    盛花期,未接种植株感病品种叶内蔗糖酶活性及可溶性糖含量高于抗病品种。
 

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