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    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。
    The activity of mixed function oxidases (MFO) to naphthalene and permethrin and the cytochrome P450 content in the resistant flies were found to be 2-, 1.48-, 1.33-fold those in the susceptible ones respectively.
    抗性家蝇多功能氧化酶的萘羟化活性、对二氯苯醚菊酯的氧化代谢能力和微粒体细胞色素P_(450)含量分别是正常家蝇的2、1.48、1.33倍。
    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)。
    The random amplified polymorphic DNA(RAPD) analysis was made in F 2 from hybridization of wheat resistant varieties to powdery mildew (79201 11 7 and Linyuan 7069) and susceptible ones (Zhongmai 2 # and ZhengZhou 831) with 20 random primers in this paper. The high productive and resistant varieties to powdery mildew were selected and molecular genetic difference of resistant/sensitive characters have been studied.
    用20个随机引物,以抗白粉病(79201-11-7、临远7069)和感白粉病(中麦2号、郑831)的高产小麦品种为亲本,杂交获得的F2群体接种白粉病菌15号小种,并进行DNA随机扩增多态性(RAPD)分析.从中选育高产、抗病个体和研究抗感特性在分子水平上的差异.
    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。
    The results indicated that Qianyu3, Qian2599, Zunyu3, Qian2411, Guibi302, Zhongdan2 and Xinghuangdan89-2 were drought and barren resistant varieties, but Qiandan10, Qianxi4, Andan136, Qian2451 and Qianyu1 were adversity susceptible ones.
    结果表明:黔玉3号、黔2599、遵玉3号、黔2411、贵毕302、中单2号和兴黄单89-2的抗逆性表现较好,黔单10号、黔西4号、安单136、黔2451和黔玉1号表现较差。
    After natural frost,the frost-resistance of sugarcane germplasms were appraised on the live buds. The result showed that there were 7 high resistant,13 comparatively high resistant,37 moderately resistant,56 susceptible ones in 113 germplasms.
    经过自然霜冻后,根据活芽率进行甘蔗种质耐霜性鉴定,结果表明,113个种质中,耐霜性强的7个,较强的13个,中的37个,弱的56个。
    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。
    The strength of gene expression was greater in resistantcotton varieties than in susceptible ones.
    受棉蚜刺吸胁迫后,抗蚜性品种基因表达明显增加,中抗品种次之,感蚜品种表达量增加较低。
    Soybean β-amylase activity also decreased after precocious germination and the correlation between soybean 3 -amylase activity and germination percentage and index is positive in varieties tolerant to precocious germination and negative in the susceptible ones. The four varieties susceptible to precocious germination can be grouped into two categories: one included 95-1 and 9701, the other included Huachun18 and Shorter Soybean.
    随着种子萌动,其贮藏物质的消耗,β-淀粉酶活性也下降,种子发生胎萌后β-淀粉酶活性均会下降,β-淀粉酶活性与浙春3号和吉23、吉24的发芽率和发芽指数呈正相关,而与9701、95-1、华春18和矮脚早等呈负相关。
    My result showed that PPO activity in healthy peel for disease-resistant varieties was 4 times as high as that for disease-susceptible ones.
    健康果皮中的多酚氧化酶活性测定结果表明,抗性品种高于感病品种4倍。
 

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