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pal
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  苯丙氨酸解氨酶
    After the treatment with W3 and its metabolite, the activity of peroxidase (POD), polypenoloxidase (PPO), phenylalanine ammonialyase (PAL) and superoxide dismutase (SOD) in the leaves was obviously increased.
    W3及其去菌液诱导处理后,叶内过氧化物酶(POD)、多酚氧化酶(PPO)、苯丙氨酸解氨酶(PAL)和超氧化物歧化酶(SOD)活性明显增强。
    The results showed that exogenous salicylic acid significantly decreased the disease index (n=9, P<0. 01), improved the activities of phenylalanine ammonia lyase (PAL), polyphenol oxidase (PPO) and peroxidase (POD), and also increased total polyphenol, flavonoid and lignin contents by 12. 0%, 32. 3% and 31. 9% comparison with only inoculation treatment, respectively.
    结果表明:外源SA极显著地降低了幼苗的病情指数(n=9,P<0.01),显著提高了灰霉病菌接种植株苯丙氨酸解氨酶(PAL)、多酚氧化酶(PPO)、过氧化物酶(POD) 活性,使总多酚、类黄酮、木质素含量分别比单一接种处理增加了12.0%、32.3%、31.9%。
    STUDIES ON THE PHYSIOLOGY BASIS OF RESISTANCE(TOLERANCE) TO RHIZOMANIA IN SUGARBEET I. RELATION BETWEEN ACTIVITIES OF POX,PPO,PAL AND RESISTANCE TO RHIZOMANIA
    甜菜抗(耐)丛根病生理基础的研究(Ⅰ) 过氧化物酶(POX)、多酚氧化酶(PPO)、苯丙氨酸解氨酶(PAL)与甜菜抗丛根病的关系
短句来源
    3-glucanase and PAL were key factors in induced resistance of melon byTrifluralin and Nitralin.
    而β-1,3-葡聚糖酶和苯丙氨酸解氨酶(PAL)活性在氟乐灵诱导甜瓜的抗性表现中,充当主要的角色。
短句来源
    Results indicated that enzyme activity of Gentiaca manshurica was all higher than that of Gentiaca scabra before and after inoculation, especially PPO activity, PAL activity could be recognized as indicators to identify the resistance of Gentian to Gentian leaf spot.
    在对生理生化指标与抗病性的相关性研究中发现,无论在接种前还是接种后,抗病品种东北龙胆的防御酶活性均高于感病品种粗糙龙胆,尤其苯丙氨酸解氨酶(PAL)、过氧化物酶(POD)活性变化可作为龙胆草抗斑枯病的鉴定指标;
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  “pal”译为未确定词的双语例句
    Meanwhile, the higher activity of defense enzymes including PAL (phenylalanine ammonia lyase), POD (peroxidase) were also investigated in root after treated by TkA8. The maximum peaks of PAL and POD activity were enhanced by 3.21, 4.25 times over control respectively.
    同时研究发现TkA8处理黄瓜幼苗可诱导防御反应相关酶系PAL、POD活性明显增加,分别为对照的3.21和4.25倍。
短句来源
    After inducing inoculation with weak-virulent race (You Ⅱ) , phenylalanine ammonia lyase (PAL) activity was always higher than that of other treatments.
    弱小种尤Ⅱ诱导接种后,PAL活性始终大于同期其他处理;
    Accumulation of pal and chs Gene Transcripts of Rice Carrying Different Bacterial Blight Resistance Genes Interacted with Xanthomonas oryzae pv. Oryzae
    携带不同抗白叶枯病基因的水稻防卫基因pal和chs的转录特征
短句来源
    Relation Between PAL Activity Change in Peels and Anthracnose Occurrence of Mango and Banana Fruits After Heat Treatment
    热处理后芒果、香蕉果皮PAL活性变化与炭疽病发生的关系
短句来源
    Relationship of PAL Activities and Induced Resistance by Inducers Against Gray Leaf Spot of Maize
    不同诱抗剂诱导玉米对灰斑病的抗性及其与PAL的关系
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  pal
The formation of soluble and polymeric (lignin) phenolic compounds, activity of L-phenylalanine ammonia lyase (PAL, EC 4.3.1.5), and content of free L-phenylalanine during cold hardening of winter wheat plants (Triticum aestivum L.) were studied.
      
The activity of PAL was lower than in control plants in both tissues, and the content of free L-phenylalanine in tissues increased.
      
It was demonstrated that treatment of brend wheat (Triticum aestivum L.) primary leaves with biological preparations produced from coniferous plants caused a transient increase in PAL and PO activities.
      
Examples of PAL application in diverse fields of structural biology during the last five-ten years are presented.
      
In combination with modern techniques of instrumental analysis and computer-aided modeling, PAL remains the most important approach in studies on the organization of biological systems.
      
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Several wheat varieties were selected including high resistant(HR),moderate restant(MR),moderate susceptible(MS) and high susceptible(HS) ones,namely MN7213(HR),Jup73-Atd"s"(MR),SI2-Nb (MS) andVilela Mar.(HS).They were used as testing materials.The virulence ofthe fungus,Erysiphe graminis f.sp.tritici,collected from Shenyang,was identified with the virulence formula as 4/1,2,3a,3b,3c,5. After an inoculation of the fungus to wheat varieties of differentresistance and susceptibility in their three leaf stage(12...

Several wheat varieties were selected including high resistant(HR),moderate restant(MR),moderate susceptible(MS) and high susceptible(HS) ones,namely MN7213(HR),Jup73-Atd"s"(MR),SI2-Nb (MS) andVilela Mar.(HS).They were used as testing materials.The virulence ofthe fungus,Erysiphe graminis f.sp.tritici,collected from Shenyang,was identified with the virulence formula as 4/1,2,3a,3b,3c,5. After an inoculation of the fungus to wheat varieties of differentresistance and susceptibility in their three leaf stage(12 hours later)eachof.the varieties appeared to have peaks of enzymatic activities of phe-nylalanine ammonia lyase(PAL).The PAL activity of the resistant va-rieties was twice higher than the susceptible ones.The relay time wasalso longer being lasted 48 hrs.Peaks of enzymatic of susceptible varie-ties decrease rapidly approached to the normal level after 24 hrs.Theaccumulation of ferulic acid (preoursor of lignin)in the resistant varie-ty was not only faster (resistant 48 hrs,susceptible 72 hrs after ino-culation) but also greater.The amount of lignin were positively corre-lated with disease resistance of the tested wheat varieties:0.327%(HR),0.284%(MR),0.132%(MS) and 0.11% (HS).It is also found thatchlorogenic acid (phenolic phytoalexin,a metabolic of phenylalanine)accumulated rapidly accompanied with the increase of PAL activity.The times and quantities of chlorogenic acid accumulation were diffe-rent.For the resistant varieties to reach the peak accumulation (3.3μg/ml) needed 48 hrs and for the susceptible ones (1.35μg/ml)96 hrs. The results showed that there is a close relationship between theenzymatic activity of PAL as well as the chlorogenic acid and ligninand the resisstace of wheat to powdery mildew.

高抗白粉病的小麦品种MN7213,中抗品Jup73的Atd“S”,中感品种S_(12)—Nb及高感品种Vilela Mar.在幼苗3叶期用沈阳地区采集的小麦白粉菌(毒力公式为4/1,2,3a,3b,3c,5)接种。接种后12小时,各抗、感小麦品种均出现苯丙氨酸解氨酶的活性峰,但抗病品种酶的活性峰较高,为感病品种的两倍,持续时间也较长,达48小时;而感病品种酶的活性峰则迅速降低,24小时即接近于正常水平。接种后48小时,抗病品种出现木质素前体阿魏酸量的增加峰,而感病品种至72—96小时才出现阿魏酸的增加,且增加量较小。木质素含量的增加亦不相同,它与小麦品种的抗病性有着正相关性:高抗品种增加0.327%;中抗品种0.284%;中感品种0.132%,而高感品种仅0.11%。此外伴随着苯丙氨酸解氨酶活性的增加绿原酸(苯丙酸类代谢一种酚类植保素产物)也迅速积累,但不同抗病性的小麦品种积累的时相和量有所不同,抗病品种在接种后48小时即出现绿原酸的增长,较感病品种早48小时,而最高增长量是前者为3.30微克/毫升,后者只有1.35微克/毫升。上述结果表明小表品种对白粉病的抗性与苯丙酸类代谢的定速酶苯丙氨酸解氨酶活性有着密切...

高抗白粉病的小麦品种MN7213,中抗品Jup73的Atd“S”,中感品种S_(12)—Nb及高感品种Vilela Mar.在幼苗3叶期用沈阳地区采集的小麦白粉菌(毒力公式为4/1,2,3a,3b,3c,5)接种。接种后12小时,各抗、感小麦品种均出现苯丙氨酸解氨酶的活性峰,但抗病品种酶的活性峰较高,为感病品种的两倍,持续时间也较长,达48小时;而感病品种酶的活性峰则迅速降低,24小时即接近于正常水平。接种后48小时,抗病品种出现木质素前体阿魏酸量的增加峰,而感病品种至72—96小时才出现阿魏酸的增加,且增加量较小。木质素含量的增加亦不相同,它与小麦品种的抗病性有着正相关性:高抗品种增加0.327%;中抗品种0.284%;中感品种0.132%,而高感品种仅0.11%。此外伴随着苯丙氨酸解氨酶活性的增加绿原酸(苯丙酸类代谢一种酚类植保素产物)也迅速积累,但不同抗病性的小麦品种积累的时相和量有所不同,抗病品种在接种后48小时即出现绿原酸的增长,较感病品种早48小时,而最高增长量是前者为3.30微克/毫升,后者只有1.35微克/毫升。上述结果表明小表品种对白粉病的抗性与苯丙酸类代谢的定速酶苯丙氨酸解氨酶活性有着密切关系,并通过代谢产物绿原酸和木质素的增加得到表达。

Phytophthora isolates obtained from euonymus roots in Hangzhou of Zheji-ang province and Nanjing of Jiangsu province were classified into 3 Phytophtho-ra species:P.meadii,P.palmivora,P.citrophthora,in which,P.meadiiwas the first deseribed in China.In Hangzhou,this disease may causedmainly by P.meadii,and in Nanjing by P.palmivora and P.citrophthora.Euonymus (Euonyrmus japonicus L.) is a new host plant of P.meadii,P.pal-mivora aud P.citrophthora.High underground water level and waterlogging insoil may be...

Phytophthora isolates obtained from euonymus roots in Hangzhou of Zheji-ang province and Nanjing of Jiangsu province were classified into 3 Phytophtho-ra species:P.meadii,P.palmivora,P.citrophthora,in which,P.meadiiwas the first deseribed in China.In Hangzhou,this disease may causedmainly by P.meadii,and in Nanjing by P.palmivora and P.citrophthora.Euonymus (Euonyrmus japonicus L.) is a new host plant of P.meadii,P.pal-mivora aud P.citrophthora.High underground water level and waterlogging insoil may be the main environmental factors affecting the occurrence of this di-sease

从杭州、南京冬青卫茅(Euonymus japonicus L.)根腐病株上分离到8个疫霉菌株,鉴定为三个种:Phytophthora meadii,P.palmivora,P.citropkthora。冬青卫茅是P.meadii、P.Palmivora、P.citrophthora新寄主。P.meadii主要分布在杭州,P.palmivora和P.citrophthora主要分布在南京.地下水位高、土壤积水可能是影响该病发生的主要环境因素.

The infection of poplar leaf rust fungi(Melampsora magnusiana)resulted in an increase in peroxidase and phynelalanine ammonia lyase(PAL)activities in dise-ased poplar leaves.The increase of the enzymes level was greater in highly sus-ceptible clones than in highly resistant ones.The appearance of the peak of pero-xidase activity coincided with the symptom emergence,distinctly different bet-ween highly resistant and highly susceptible clones.PAL activity reached a maxi-mum in all tested clones after...

The infection of poplar leaf rust fungi(Melampsora magnusiana)resulted in an increase in peroxidase and phynelalanine ammonia lyase(PAL)activities in dise-ased poplar leaves.The increase of the enzymes level was greater in highly sus-ceptible clones than in highly resistant ones.The appearance of the peak of pero-xidase activity coincided with the symptom emergence,distinctly different bet-ween highly resistant and highly susceptible clones.PAL activity reached a maxi-mum in all tested clones after 10 days of inoculation.Infection also caused changes of isoperoxidase patterns.Additional isoperoxidase bands appeared in most of infected clones.However,these changes could not reflect the different resistance of the hosts.

叶锈菌的侵染使寄主的过氧化物酶和苯丙氨酸解氨酶(PAL)活性均增加,且高感无性系的酶活性变化幅度较高抗无性系的大。其中,过氧化物酶活性高峰出现的时间因抗、感无性系受侵染后显症时间的不同而有差异;但PAL酶活性高峰则不论抗、感病无性系,均在接种后第10天左右出现。侵染还可引起过氧化物酶同工酶谱的变化,使多数供试无性系有新酶带出现。但过氧化物酶同工酶谱的变化不能明确反映寄主的抗病性差异。

 
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